{"schemaVersion":"mfr-id-profile.v1","profileUrl":"https://mfr.io/springcompany","jsonUrl":"https://mfr.io/springcompany.json","markdownUrl":"https://mfr.io/springcompany.md","approval":{"status":"approved","label":"Manufacturer Approved","originalApprovalDate":"2026-07-29T14:47:18.971Z","originalApprovalDateDisplay":"7/29/2026","lastUpdatedDate":"2026-07-29T15:11:33.938Z","lastUpdatedDateDisplay":"7/29/2026","reviewedBy":["John Evans' Sons, LLC","MFR.io"],"statement":"This MFR.ID profile for John Evans' Sons, LLC has been supplied, reviewed, and approved by John Evans' Sons, LLC originally on 7/29/2026. It was last updated on 7/29/2026. The capability information shown here, including services, equipment, processes, industries served, facility details, certifications, lead times, capacity indicators, and RFQ-relevant capabilities, was provided or confirmed by John Evans' Sons, LLC and reviewed by MFR.io for sourcing accuracy and completeness. This MFR.ID profile serves as an expanded public capability record for buyer discovery, supplier screening, and RFQ evaluation. John Evans' Sons, LLC's own website may provide a general overview; this profile includes structured, manufacturer-approved capability details authorized for public sourcing use."},"company":{"mfrId":"springcompany","name":"John Evans' Sons, LLC","shortName":"John Evans' Sons","profileType":"default","companyType":"Component Manufacturer","companySubType":"Springs & Wire Forms Manufacturer","specialization":"Custom Springs & Constant-Force Assemblies","description":"Founded in 1850 and now part of Beijer Components, with Lesjöfors serving as a core commercial spring brand, John Evans’ Sons engineers and manufactures constant-force, spiral torsion, power, helical, and flat springs, wire forms, and spring-powered reels from a modern 65 000-ft² Lansdale, PA plant. Certified to ISO 9001:2015, AS9100D, and ISO 13485:2016, the in-house tool-and-die shop, CNC machining, EDM, and heat-treating enable rapid prototype-to-production turnaround (3–8-week standard lead times). Buyers in medical devices, aerospace, industrial automation, fenestration, robotics, automotive, retail displays, and heavy equipment rely on JES for tight-tolerance springs, full design support, and global logistics reaching 100+ countries.","yearFounded":"1850","website":"https://springcompany.com/","leadTime":{"min":3,"max":8,"unit":"Weeks","display":"3-8 Weeks"},"employees":{"min":51,"max":100,"display":"51-100"},"revenue":{"min":25000000,"max":40000000,"display":"$25M-$40M"},"contact":{"email":"sales@springcompany.com","phone":"+1 215-368-7700"},"address":{"streetAddress":"1 Spring Avenue","addressLine2":"P.O. Box 885","city":"Lansdale","state":"Pennsylvania","postalCode":"19446","country":"United States","latitude":40.250211,"longitude":-75.280602},"industries":[{"name":"Aerospace & Defense","description":"AS9100-certified constant-force and helical springs for aircraft latches, doors, and cabin systems."},{"name":"Medical Devices & Healthcare Equipment","description":"ISO 13485-certified springs for surgical instruments, implantables, and diagnostics."},{"name":"Industrial Machinery & Heavy Equipment","description":"Power-spring reels and flat springs for presses, conveyors, and automation cells."},{"name":"Automotive & Transportation","description":"Custom window-balance, truck door, and seat-control springs for transportation OEMs."},{"name":"Scientific Instrumentation & Analytical Equipment","description":"Ultra-fine springs and wire forms for spectrometers and lab automation."},{"name":"General Manufacturing","description":"Versatile spring fabrication for diverse specialty manufacturing projects."},{"name":"Construction Products & Building Materials","description":"FGIA-member constant-force springs and counterweights for fenestration and elevator systems."},{"name":"Industrial Robotics & Automation Systems","description":"Compact power and torsion springs for robotic joints, grippers, and cable-management reels."},{"name":"Point-of-Purchase (POP) & Retail Displays","description":"Spring-powered reels and flat-spring hinges for interactive retail point-of-purchase displays."},{"name":"HVAC, Climate Control & Refrigeration","description":"John Evans' Sons manufactures constant-force, compression and extension springs, wire forms, and stamped components for airflow controls, fire dampers, seals, supports, thermal-expansion systems, and vibration-control applications in residential, commercial, and industrial HVAC equipment."},{"name":"Data Centers & Critical Facilities","description":"John Evans' Sons manufactures constant-force and spiral-torsion springs and mechanical assemblies for data-center HVAC and fire-safety systems, including fire dampers and CRAH airflow-control equipment."}],"certifications":[{"name":"Fenestration & Glazing Industry Alliance (FGIA) Membership","type":"Membership","authority":"Fenestration & Glazing Industry Alliance (FGIA)","url":"https://fgiaonline.org","status":"Active","scope":"Corporate membership in the Fenestration & Glazing Industry Alliance."},{"name":"Northeast Window & Door Association (NWDA) Membership","type":"Membership","authority":"Northeast Window & Door Association (NWDA)","url":"https://nwda.net","status":"Active","scope":"Membership in the Northeast Window & Door Association."},{"name":"Spring Manufacturers Institute (SMI) Membership","type":"Membership","authority":"Spring Manufacturers Institute (SMI)","url":"https://smihq.org","status":"Active","scope":"Membership in the Spring Manufacturers Institute."},{"name":"National Business Aviation Association (NBAA) Membership","type":"Membership","authority":"National Business Aviation Association (NBAA)","url":"https://nbaa.org","status":"Active","scope":"Corporate membership in the National Business Aviation Association."},{"name":"FAR/DFARS Compliance","type":"Compliance","authority":"U.S. Department of Defense, U.S. Government","url":"https://www.acquisition.gov/","status":"Active","scope":"Compliance with FAR and DFARS for U.S. defense contracts."},{"name":"RoHS 3 Compliance","type":"Compliance","authority":"European Commission","url":"https://ec.europa.eu/environment/topics/waste-and-recycling/rohs-directive_en","status":"Active","scope":"RoHS 3 hazardous-substances compliance."},{"name":"REACH Compliance","type":"Compliance","authority":"European Chemicals Agency (ECHA)","url":"https://environment.ec.europa.eu/topics/chemicals/reach-regulation_en","status":"Active","scope":"EU REACH chemical-safety compliance."},{"name":"ITAR Registration","type":"Registration","authority":"U.S. Department of State – Directorate of Defense Trade Controls (DDTC)","url":"https://www.pmddtc.state.gov","status":"Needs info","scope":"ITAR registration for manufacture/export of defense articles."},{"name":"ISO 9001:2015","type":"Certification","authority":"International Organization for Standardization (ISO)","url":"https://www.iso.org/iso-9001-quality-management.html","status":"Active","scope":"Campus site quality management system for manufacture of various types of springs and mechanical assemblies at 1 Spring Avenue; the 200 5th Street additional site is a warehouse.","issueDate":"2025-03-09","expirationDate":"2028-03-08"},{"name":"AS9100D","type":"Certification","authority":"International Aerospace Quality Group (IAQG)","url":"https://www.sae.org/standards/content/as9100d/","status":"Active","scope":"Campus site aerospace quality management system for manufacture of various types of springs and mechanical assemblies at 1 Spring Avenue; the 200 5th Street additional site is a warehouse.","issueDate":"2025-03-09","expirationDate":"2028-03-08"},{"name":"ISO 13485:2016","type":"Certification","authority":"International Organization for Standardization (ISO)","url":"https://www.iso.org/standard/59752.html","status":"Active","scope":"Manufacture of various types of springs and mechanical assemblies for non-active medical devices. The 200 5th Street additional site stores raw materials and finished product.","issueDate":"2024-12-24","expirationDate":"2028-01-02"}]},"verificationStatus":{"areas":[{"type":"Business Entity","label":"Business Entity","status":"Verified","date":"2025-07-10T00:00:00.000Z","dateDisplay":"7/10/2025","display":"Verified 7/10/2025"},{"type":"Technical Capabilities","label":"Technical Capabilities","status":"Verified","date":"2026-07-29T14:47:18.971Z","dateDisplay":"7/29/2026","display":"Verified 7/29/2026"},{"type":"Locations & Facilities","label":"Locations & Facilities","status":"Not yet verified","display":"Not yet verified"},{"type":"Reviews & Ratings","label":"Reviews & Ratings","status":"Not yet verified","display":"Not yet verified"}],"mfrIdCreatedDate":"2025-06-02T20:38:19.231Z","mfrIdCreatedDateDisplay":"6/2/2025","lastUpdatedDate":"2026-07-29T15:11:33.938Z","lastUpdatedDateDisplay":"7/29/2026"},"capabilities":[{"id":"ae71d703-21d8-44a6-a93f-ce15cbbaf243","name":"Precision Spring & Wire Forming","process":"Spring Wire Forming","description":"John Evans’ Sons produces custom helical, flat‑strip and constant‑force springs plus complex wire forms by combining multi‑axis CNC coiling, progressive die/fourslide stamping and proprietary strip‑coiling equipment. Round‑wire diameters from 0.004 in – 0.236 in (0.10 mm – 6.00 mm) and strip gauges 0.002 in – 0.170 in thick by up to 4.0 in wide cover micro medical springs through large industrial counterbalances. In‑house tool‑and‑die, vacuum/atmosphere heat‑treat, end grinding, shot peen, passivation, electropolish and a full menu of polymer, phosphate and black‑oxide coatings deliver springs ready for aerospace, medical and industrial service. Closed‑loop vision feedback, force/torque SPC and certified quality systems (ISO 9001:2015, AS9100 D, ISO 13485:2016) ensure every spring meets dimensional, load and life targets from single prototypes to 100‑million‑piece programs.","highlights":["CNC coiling & multislide wire forming: Ø 0.004 – 0.236 in round wire or shaped wire","Progressive/fourslide strip forming: 0.002 – 0.170 in thick × ≤ 4 in wide for constant‑force, power & flat springs","Force output from 0.01 in‑oz to 125 ft‑lb (laminated constant‑force packs) and torsional outputs to 700 in‑lb","Integrated age‑hardening, stress‑relief, shot peen (6–10 A) & electropolish (Ra ≤ 0.25 µm) extend >10⁶‑cycle life","Lot‑traceable load/torque & fatigue testing with AS9102 FAI, PPAP and digital travellers on request"],"subprocesses":["Spring Wire Forming","CNC Spring Coiling","Constant/Variable-Force Strip Spring Forming","Flat Spring Progressive Stamping","Laser / Waterjet Blanking (Springs)","Heat-Treating & Thermal Processing","Spring End Grinding","Spring Passivation & Electropolishing","Spring Shot Peening","Powder & Polymer Coatings (Springs)","Black Oxide & Phosphate Conversion Coatings (Springs)","Engineering & Design Services","Hardness & Tensile Coupon Testing","Inventory Management & Logistics"],"specifications":[{"id":"a633ff09-4747-469c-b0f9-e02c0e2dd79e","criteria":"Typical Lead Time","label":"Typical Lead Time","type":"lead_times","display":{"kind":"text","text":"2-8 weeks"},"notes":"2–4 weeks for repeat stainless SKUs; 6–8 weeks when custom tooling or exotic alloy sourcing required."},{"id":"3753d3d7-6e91-47d9-99c1-0eb252916de5","criteria":"Quality Certifications","label":"Quality Certifications","type":"string[]","display":{"kind":"list","items":["ISO 9001:2015","AS9100D","ISO 13485:2016","AAMA qualified (window balance springs)"]},"notes":"Lot traceability, AS9102 FAI and medical device DHR supported."},{"id":"349c46f6-3e82-46fc-8472-f10afc4aef34","criteria":"Flat-Strip Thickness Capability","label":"Flat Strip Thickness Capability","type":"measurement_range","display":{"kind":"text","text":"0.002-0.625 in (0.05-15.9 mm)"},"notes":"0.002–0.032 in for constant/power springs; up to 0.625 in for heavy leaf and latch springs."},{"id":"88a20ac7-4db2-41f7-80f7-a037ce3f649d","criteria":"Supported Materials","label":"Supported Materials","type":"string[]","display":{"kind":"list","items":["Music wire (ASTM A228)","Chrome-silicon & oil-tempered steels","301/302/304/316 SS, 17-7 PH SS","Inconel 600/718, Hastelloy, Monel","Elgiloy, Havar, titanium alloys","Phosphor bronze, beryllium copper"]},"notes":"Material selected for strength, corrosion, temperature, conductivity or fatigue per application."},{"id":"e153b1cd-d511-42ff-9c0f-b6aa0cf79caf","criteria":"Force / Torque Capacity","label":"Force / Torque Capacity","type":"measurement_range","display":{"kind":"text","text":"0.00005-125 ft-lb (0.00007-169.5 N·m)"},"notes":"Micro constant-force springs at 0.01 in-oz through multi-laminated strip springs delivering 125 ft-lb; spiral torsion up to 700 in-lb fits within this range."},{"id":"3ec5e195-a53f-4b55-a455-7480940d266e","criteria":"Flat-Strip Width Capability (Coiled & Stamped)","label":"Flat Strip Width Capability (Coiled & Stamped)","type":"measurement_range","display":{"kind":"text","text":"0.062-4 in (1.6-102 mm)"},"notes":"Constant-force and power springs use 0.062–4.0 in strip; stamped flat springs run 0.125–2.0 in widths in progressive dies."},{"id":"9e971b74-63fe-420e-a207-9b3e46486559","criteria":"Production Scale","label":"Production Scale","type":"production_scale","display":{"kind":"list","items":["Prototype (1-20 parts)","Short Run (21-1000 parts)","Medium Run (1001-100000 parts)","Mass Production (100001-10000000 parts)"]},"notes":"Kanban & VMI programs ensure just-in-time delivery."},{"id":"d778dacd-cdcf-4634-92b3-53f6340d090d","criteria":"Testing & Process Controls","label":"Testing & Process Controls","type":"string[]","display":{"kind":"list","items":["Vision SPC on coil diameter, free length & strip profile","Load / torque testers 0 – 10 000 N (±0.5 %)","Rotary & linear fatigue rigs to 10⁶+ cycles","Rockwell hardness & eddy-current temper verification","Digital travellers, AS9102 FAI & PPAP documentation"]},"notes":"Closed-loop machine control adjusts in real time when SPC trends drift."},{"id":"5195c8a8-2470-4c60-a29e-b2f15264352a","criteria":"Round-Wire Diameter Capability","label":"Round Wire Diameter Capability","type":"measurement_range","display":{"kind":"text","text":"0.004-0.236 in (0.1-6 mm)"},"notes":"CNC coilers and multi-axis benders handle micro medical springs to stout industrial coils."}]},{"id":"73d5444d-df63-4299-8788-d77eec67a668","name":"Helical Shock & Vibration Isolators","process":"Helical Wire Rope Isolators","description":"John Evans' Sons manufactures all-metal helical isolators from aircraft-grade stainless steel wire rope wound into a helix and secured with metal retaining bars. Designed for multidirectional shock and vibration protection, the isolators operate in compression, tension, shear, and roll across all axes and support loads from a few pounds to thousands. Standard and custom configurations serve shipboard, vehicle, aircraft, shipping-case, industrial, ordnance, medical, and chimney applications.","highlights":["Aircraft-grade stainless steel wire rope secured by metal retaining bars","Published Coulomb damping of 15-17% of critical (C/Cc)","Protection in compression, tension, shear, and roll across all axes","Cable diameters from 1/16 in to 1 in and larger support loads from a few pounds to thousands","Maintenance-free all-metal construction with standard and custom configurations"],"materials":["Steel","Stainless Steel","Alloy Steel"],"specifications":[{"id":"cec44721-cf09-4e9e-8275-d28377e3b877","criteria":"Construction","label":"Construction","type":"string[]","display":{"kind":"list","items":["Aircraft-grade stainless steel wire rope","Metal retaining bars","All-metal helical configuration"]},"notes":"The published design winds stainless steel wire rope into a helix and secures it with metal retaining bars."},{"id":"1239fe14-6888-4d42-94ce-5ac613d6a55a","criteria":"Published Coulomb Damping","label":"Published Coulomb Damping","type":"string","display":{"kind":"text","text":"15-17% of critical (C/Cc)"},"notes":"This is the damping range published for John Evans' helical shock and vibration isolators."},{"id":"3a8c2b50-b7e1-4040-93da-8c7950e5a3b1","criteria":"Published Cable Diameter Range","label":"Published Cable Diameter Range","type":"string","display":{"kind":"text","text":"1/16 in to 1 in and larger"},"notes":"The product page states cable diameters from 1/16 in to 1 in+."},{"id":"d79078c3-c46f-4fa2-ad05-c6c260747aa5","criteria":"Published Load Range","label":"Published Load Range","type":"string","display":{"kind":"text","text":"A few pounds to thousands of pounds"},"notes":"Actual selection depends on cable diameter, configuration, frequency range, and installation footprint."},{"id":"48cc6a64-0c01-4547-abca-605b17429a6d","criteria":"Isolation Modes","label":"Isolation Modes","type":"string[]","display":{"kind":"list","items":["Compression","Tension","Shear","Roll","All-axis protection"]},"notes":"The product page explicitly describes multidirectional protection in these modes."},{"id":"ce77813c-dd8b-4125-8aba-e098ce662850","criteria":"Design & Finish Options","label":"Design & Finish Options","type":"string[]","display":{"kind":"list","items":["Iridited aluminum retaining bars (standard)","Stainless steel retaining bars on request","Other coatings or materials on request","Custom cable configurations"]},"notes":"Custom cable configurations can be tailored to load capacity, frequency range, and installation footprint."},{"id":"c83d2102-ba8a-4c90-8477-9dd678dec14e","criteria":"Published Application Categories","label":"Published Application Categories","type":"string[]","display":{"kind":"list","items":["Shipboard","Rough-terrain vehicles","Aircraft","Shipping cases","Industrial equipment","Ordnance equipment","Medical equipment","Chimneys and scrubbers"]},"notes":"These categories are listed in the product-page application table."}]},{"id":"56057bd5-1400-434b-be1b-0581c13fd88a","name":"Turnkey Mechanical Spring Assemblies","process":"Spring Assembly & Integration","description":"John Evans’ Sons delivers complete spring-based sub-assemblies – from brush-spring packs to large counterbalance mechanisms – integrating CNC-machined, stamped, welded and heat-treated components in-house. A single PO secures design support, custom fixturing, precision machining, certified welding/brazing and 100 % functional testing under ISO 9001/AS9100/ISO 13485 oversight, reducing supply-chain risk and time-to-market for aerospace, medical and industrial equipment OEMs.","highlights":["One-stop spring + hardware assembly with machining, stamping, EDM, welding and heat-treat under one roof","Component mix can include springs, wire forms, shafts, pistons, seals, bearings and molded plastics","Force / torque outputs from 0.01 in-oz to 125 ft-lb; cycle life tested to 1 000 000+ cycles","Custom jigs & fixtures built internally for repeatable alignment and preload","End-of-line functional, force and life-cycle testing with full traceability"],"subprocesses":["CNC Milling","Deep Drawn Stamping","Welding & Joining","Surface Grinding","Light Mechanical Assembly","Heat-Treating & Thermal Processing","Wire EDM","Fixture & Gauge Manufacture","Hardness & Tensile Coupon Testing","Value Added Services","Engineering & Design Services","Inventory Management & Logistics"],"materials":["(SK85) SK5 Carbon Steel","301 Stainless Steel","302 Stainless Steel","303 Stainless Steel","310 Stainless Steel","316 Stainless Steel","Alloy Steel","Stainless Steel","Steel"],"specifications":[{"id":"fa49f0e2-8515-48b9-b83f-bbbed8e2225f","criteria":"Quality Certifications","label":"Quality Certifications","type":"string[]","display":{"kind":"list","items":["ISO 9001:2015","AS9100D","ISO 13485:2016"]},"notes":"QA monitors every assembly stage; FAI, PPAP and lot traceability available on request."},{"id":"4bfb6a5a-f729-4314-a72a-4f985c1a06be","criteria":"Testing & QA Coverage","label":"Testing & QA Coverage","type":"string[]","display":{"kind":"list","items":["Force / torque verification at specified deflection","Life-cycle endurance (up to 1 M cycles)","CMM / optical dimensional audits","Hardness & tensile coupon testing"]},"notes":"Assemblies destined for aerospace/medical sectors include full documentation package and serialized traceability."},{"id":"3bc8e7fc-11ab-4eec-a01f-48e9b6243ec3","criteria":"Typical Lead Time (new assembly)","label":"Typical Lead Time (New Assembly)","type":"lead_times","display":{"kind":"text","text":"4-12 weeks"},"notes":"Dependent on custom tooling and external component sourcing; repeat orders ship in as little as 2 – 4 weeks."},{"id":"e241a111-1491-495f-aba1-b811fa4d22dc","criteria":"Integrated Component Types","label":"Integrated Component Types","type":"string[]","display":{"kind":"list","items":["Springs (constant force, spiral torsion, power, helical)","Wire forms & flat stampings","CNC-machined shafts, pistons, brackets","Tubing, seals, bearings & molded plastics"]},"notes":"Typical assemblies combine 3 – 12 components; customer-supplied parts are accepted for turnkey build."},{"id":"c3ef9568-e421-4927-b93a-21fa1d1a34bb","criteria":"In-House Joining & Finishing Processes","label":"In House Joining & Finishing Processes","type":"string[]","display":{"kind":"list","items":["TIG / MIG welding","Silver brazing","Swaging & coining","Surface & cylindrical grinding","Deburr, tumble & vibratory finish","Passivation, zinc/tin plating, phosphate coat"]},"notes":"Eliminates outside processing delays and maintains dimensional control on critical mating surfaces."},{"id":"7daeeb07-34d7-4077-aedb-8473f92396fb","criteria":"Production Scale Supported","label":"Production Scale Supported","type":"production_scale","display":{"kind":"list","items":["Prototype (1-5 assemblies)","Short Run (6-500 assemblies)","Medium Run (501-10000 assemblies)","Mass Production (10001+ assemblies)"]},"notes":"Historical programs include 100 M+ window balance spring assemblies."},{"id":"2848dde0-e637-4353-8d44-bca97a130f47","criteria":"Force / Torque Capacity","label":"Force / Torque Capacity","type":"measurement_range","display":{"kind":"text","text":"Min: 0.01 in-oz, Max: 125 ft-lb (0.00007-169.5 N·m)"},"notes":"Laminated or multi-spring configurations achieve high torque while micro brush-spring packs deliver gram-level forces."},{"id":"c62e86a8-dc97-4baf-8517-1633b3d6cfb4","criteria":"Validated Cycle Life","label":"Validated Cycle Life","type":"measurement_range","display":{"kind":"text","text":"2500-1000000 cycles"},"notes":"Cycle life verified on dedicated rigs; mid-stroke operation dramatically extends life expectancy."}]},{"id":"95b530f0-fb1e-4dc1-a0b9-d682d1962f80","name":"Precision Micro Spring Manufacturing","process":"Micro Spring Coiling","description":"John Evans’ Sons produces ultra-miniature compression, extension and flat springs from wire or strip as thin as 0.002 in (0.05 mm). CNC micro-coilers with laser-monitored feedback, in-line stress relief and in-house tooling deliver repeatable geometry at scale, while ISO 9001/13485/AS9100 quality and 100 % optical inspection ensure reliable parts for medical, aerospace and micro-electronic devices.","highlights":["Forms wire/strip down to 0.002 in (0.05 mm) for true micro components","8-axis CNC coiling with closed-loop laser OD & pitch control","In-house micro tooling, heat-treat, passivation and plating streamline iterations","100 % optical/laser dimensional inspection with full traceability","Prototype-to-million-piece scale under ISO 13485 & AS9100 oversight"],"subprocesses":["Ultra-Fine Wire & Strip Forming (Micro)","Micro Spring Stamping","Micro Tooling Design & Build","Micro Component Heat-Treatment & Stress Relief","Micro Optical/Laser Dimensional Inspection","Rapid Spring Prototyping & Design Engineering","Micro Spring Material Selection & Consulting","Micro Spring Assembly & Integration","Micro Component Passivation & Conversion Coatings","Clean-Room Micro-Part Packaging & Handling"],"materials":["301 Stainless Steel","302 Stainless Steel","303 Stainless Steel","304 Stainless Steel","(SK85) SK5 Carbon Steel","Alloy Steel","Stainless Steel","Steel"],"specifications":[{"id":"58a6f91f-b901-47b4-abf4-1915b1b7f76f","criteria":"Quality Certifications","label":"Quality Certifications","type":"string[]","display":{"kind":"list","items":["ISO 9001:2015","ISO 13485:2016","AS9100D"]},"notes":"Certified quality systems support aerospace, medical and other regulated programs."},{"id":"5d7f72ee-53ff-4c4b-9bf8-21cb13d77257","criteria":"Typical Lead Time (prototype)","label":"Typical Lead Time (Prototype)","type":"lead_times","display":{"kind":"text","text":"2-6 weeks"},"notes":"Internal tooling and material inventory enable 2–6 week turnaround for new micro-spring designs; repeat orders ship faster."},{"id":"5db918c6-4cfd-4763-9040-9300a32a25d6","criteria":"Supported Spring Materials","label":"Supported Spring Materials","type":"string[]","display":{"kind":"list","items":["300-series stainless steels","17-7 PH stainless","Phosphor bronze","Music wire (high-carbon steel)","Elgiloy / cobalt alloys","Inconel & other nickel alloys"]},"notes":"Engineers advise on strength, biocompatibility and corrosion resistance for each micro-scale application."},{"id":"6cf752e6-c253-4d4e-b753-ebfd93c088a4","criteria":"Wire / Strip Thickness Capability","label":"Wire / Strip Thickness Capability","type":"measurement_range","display":{"kind":"text","text":"0.002+ in (0.05+ mm)"},"notes":"Ultra-fine forming down to 0.002 in enables reliable miniature springs for compact mechanisms."},{"id":"429c75ad-9bf0-452e-a9af-703dc3783492","criteria":"Production Scale Supported","label":"Production Scale Supported","type":"production_scale","display":{"kind":"list","items":["Prototype (1-10 parts)","Short Run (11-500 parts)","Medium Run (501-10000 parts)","Mass Production (10001+ parts)"]},"notes":"Automated lines and flexible staffing scale the validated micro-spring process from one-off to millions."},{"id":"cca969f4-fb7c-4a71-abcb-410dfff0ac39","criteria":"Inspection Coverage","label":"Inspection Coverage","type":"string[]","display":{"kind":"list","items":["100 % optical comparators","Laser OD & pitch monitoring","Microscope dimensional checks"]},"notes":"Every micro spring is verified against critical dimensions and force/deflection curves for traceable quality assurance."}]},{"id":"80d3710f-35e5-49a3-a2b8-85b98d19fbce","name":"Rapid Spring Prototyping & Design Engineering","process":"Rapid Spring Prototyping & Design Engineering","description":"John Evans’ Sons turns napkin sketches into production-ready springs fast. Certified engineers perform DFM/RFQ feasibility reviews, create digital spring models with finite-element stress and fatigue analysis, fabricate custom prototype tooling in-house, and coil or stamp trial parts from wire/strip as fine as 0.002 in. Iterative design loops—with complete load, deflection and life-cycle data—converge on an optimised geometry that scales seamlessly to pilot and mass production under ISO 9001, AS9100D and ISO 13485 controls.","highlights":["DFM & simulation cut first-article iterations by 50 %+ versus legacy methods","Prototype tooling built in ≤3 days with CNC, EDM and additive fixture inserts","Wire diameters 0.002–0.125 in and strip 0.002–0.170 in × ≤2.5 in wide supported","Comprehensive test lab: force/torque (±0.5 %), fatigue to 10⁶ cycles, failure analysis","Prototype kits (3–10 force variants) ship in 1–4 weeks; same team scales to millions"],"subprocesses":["DFM / DFA Consulting","Prototype Tooling Design & Build","Spring Wire Forming","Alloy & Temper Guidance","Spring Load / Deflection & Fatigue Testing","Multiple-Variation Spring Prototype Kits","Inspection Reporting","Spring Failure Analysis & Design Troubleshooting","Prototype-to-Production Lot Management"],"specifications":[{"id":"97a1a6fd-9fb0-4a8a-a257-0d1e293e4312","criteria":"Supported Prototype Materials","label":"Supported Prototype Materials","type":"string[]","display":{"kind":"list","items":["Music wire (SAE 1074/1095)","300-series stainless (301, 302, 304, 316)","17-7 PH stainless","Inconel 600 / 718","Elgiloy cobalt alloy","Phosphor bronze, beryllium copper"]},"notes":"Small-lot stock of common alloys plus rapid sourcing for exotic grades; side-by-side material trials offered."},{"id":"ade1ba22-eed9-49c6-928a-f160cbf30238","criteria":"Testing & Validation Services","label":"Testing & Validation Services","type":"string[]","display":{"kind":"list","items":["Static load & deflection curves (0–10 000 N)","Rotary & linear fatigue rigs to 10⁶ cycles","High-speed video & optical micro-inspection","Root-cause failure analysis with SEM fractography"]},"notes":"Complete data packets (PDF + CSV) provided for design reviews, FAI and regulatory submissions."},{"id":"42118acc-c2b1-4df0-9ecc-a68d7e6be818","criteria":"Typical Lead Time","label":"Typical Lead Time","type":"lead_times","display":{"kind":"text","text":"1-4 weeks"},"notes":"1–2 weeks for simple round-wire prototypes in stocked alloys; 3–4 weeks if custom strip tooling or exotic material procurement is required."},{"id":"7f10f67b-cca3-4965-ac51-dc5bf8283bf5","criteria":"Simulation & CAD Tools","label":"Simulation & CAD Tools","type":"string[]","display":{"kind":"list","items":["Spring Calculator Professional® (rate & stress)","ANSYS® / FEA for complex flat springs","SolidWorks® & STEP/IGES native import"]},"notes":"Digital twins predict load ±3 % and life ±10 % before metal is cut, reducing physical iterations."},{"id":"320ffafd-4962-4f8f-9ea3-fda407b5e86a","criteria":"Prototype Dimension Capability","label":"Prototype Dimension Capability","type":"measurement_range","display":{"kind":"text","text":"0.002-0.17 in (0.05-4.32 mm)"},"notes":"Round wire 0.002–0.125 in Ø and strip 0.002–0.170 in thick (≤2.5 in wide) enable micro medical springs through heavy constant-force bands."},{"id":"97858eee-6a67-476f-bf4c-d69dc1f8ee81","criteria":"Prototype Batch Size Options","label":"Prototype Batch Size Options","type":"production_scale","display":{"kind":"list","items":["Prototype (1-20 parts)","Short Run (20-500 parts)"]},"notes":"Multi-variation kits (3–10 force or length variants) available in a single shipment."},{"id":"ba944037-5d7f-4077-a3f9-d642a2b55842","criteria":"Documentation Deliverables","label":"Documentation Deliverables","type":"string[]","display":{"kind":"list","items":["DFM review report & risk matrix","Detailed CAD drawings with tolerances ±0.0005 in where critical","Material & heat-treat certs, RoHS/REACH statements","First-Article Inspection (AS9102) on request"]},"notes":"Digital records integrate with customer PLM; prototype learnings roll directly into production travellers."}]}],"facilities":[{"id":"0f192b7e-2519-4a69-8ea3-69756b8cc6de","name":"John Evans' Sons Headquarters & Manufacturing Plant","type":"manufacturing_facility","headquarters":true,"description":"65 000-ft² headquarters integrating constant-force and power-spring coilers, flat-spring presses, in-house tool-and-die, and AS9100/ISO 13485 labs; minutes from I-476 and PHL air-cargo for same-day carrier pickup.","address":{"streetAddress":"1 Spring Avenue","addressLine2":"P.O. Box 885","city":"Lansdale","state":"PA","postalCode":"19446","country":"United States","latitude":40.250211,"longitude":-75.280602},"contact":{"email":"sales@springcompany.com","phone":"+1 215-368-7700"}},{"id":"565f8e21-287f-4e5e-98e8-7bbaa5c89ea2","name":"John Evans' Sons – 5th Street Warehouse","type":"distribution_center","headquarters":false,"description":"25 000-ft² warehouse stocking raw material and finished goods for Kanban and blanket-order programs; covered under the ISO/AS9100/ISO 13485 multi-site QMS.","address":{"streetAddress":"200 5th Street","city":"Lansdale","state":"PA","postalCode":"19446","country":"United States","latitude":40.24241,"longitude":-75.27775},"contact":{"phone":"+1 215-368-7700"}}],"jsonLd":{"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://mfr.io/#organization","name":"MFR.io","url":"https://mfr.io/"},{"@type":"WebSite","@id":"https://mfr.io/#website","name":"MFR.io","url":"https://mfr.io/","publisher":{"@id":"https://mfr.io/#organization"}},{"@type":"ProfilePage","@id":"https://mfr.io/springcompany#mfr-id-profile","name":"Manufacturer Approved MFR.ID Profile for John Evans' Sons, LLC","url":"https://mfr.io/springcompany","mainEntity":{"@id":"https://mfr.io/springcompany#organization"},"about":{"@id":"https://mfr.io/springcompany#organization"},"publisher":{"@id":"https://mfr.io/#organization"},"provider":{"@id":"https://mfr.io/#organization"},"isPartOf":{"@id":"https://mfr.io/#website"},"dateCreated":"2025-06-02T20:38:19.231Z","dateModified":"2026-07-29T15:11:33.938Z","inLanguage":"en-US","image":"https://assets.mfr.io/springcompany/springcompany-hero-bg.webp","encoding":[{"@type":"MediaObject","encodingFormat":"application/json","contentUrl":"https://mfr.io/springcompany.json"},{"@type":"MediaObject","encodingFormat":"text/markdown","contentUrl":"https://mfr.io/springcompany.md"}],"reviewedBy":[{"@id":"https://mfr.io/springcompany#organization"},{"@id":"https://mfr.io/#organization"}],"text":"This MFR.ID profile for John Evans' Sons, LLC has been supplied, reviewed, and approved by John Evans' Sons, LLC originally on 7/29/2026. It was last updated on 7/29/2026. The capability information shown here, including services, equipment, processes, industries served, facility details, certifications, lead times, capacity indicators, and RFQ-relevant capabilities, was provided or confirmed by John Evans' Sons, LLC and reviewed by MFR.io for sourcing accuracy and completeness. This MFR.ID profile serves as an expanded public capability record for buyer discovery, supplier screening, and RFQ evaluation. John Evans' Sons, LLC's own website may provide a general overview; this profile includes structured, manufacturer-approved capability details authorized for public sourcing use."},{"@type":"Organization","@id":"https://mfr.io/springcompany#organization","name":"John Evans' Sons, LLC","identifier":{"@type":"PropertyValue","propertyID":"MFR_ID","value":"springcompany"},"url":"https://mfr.io/springcompany","sameAs":["https://springcompany.com/"],"mainEntityOfPage":{"@id":"https://mfr.io/springcompany#mfr-id-profile"},"description":"Founded in 1850 and now part of Beijer Components, with Lesjöfors serving as a core commercial spring brand, John Evans’ Sons engineers and manufactures constant-force, spiral torsion, power, helical, and flat springs, wire forms, and spring-powered reels from a modern 65 000-ft² Lansdale, PA plant. Certified to ISO 9001:2015, AS9100D, and ISO 13485:2016, the in-house tool-and-die shop, CNC machining, EDM, and heat-treating enable rapid prototype-to-production turnaround (3–8-week standard lead times). Buyers in medical devices, aerospace, industrial automation, fenestration, robotics, automotive, retail displays, and heavy equipment rely on JES for tight-tolerance springs, full design support, and global logistics reaching 100+ countries.","foundingDate":"1850","logo":"https://assets.mfr.io/springcompany/springcompany-logo.jpg?v=1","image":"https://assets.mfr.io/springcompany/springcompany-hero-bg.webp","telephone":"+1 215-368-7700","email":"sales@springcompany.com","address":{"@type":"PostalAddress","addressCountry":"United States","streetAddress":"1 Spring Avenue","addressLocality":"Lansdale","addressRegion":"Pennsylvania","postalCode":"19446"},"location":[{"@id":"https://mfr.io/springcompany#facility-0f192b7e-2519-4a69-8ea3-69756b8cc6de"},{"@id":"https://mfr.io/springcompany#facility-565f8e21-287f-4e5e-98e8-7bbaa5c89ea2"}],"knowsAbout":["Precision Spring & Wire Forming","Helical Shock & Vibration Isolators","Turnkey Mechanical Spring Assemblies","Precision Micro Spring Manufacturing","Rapid Spring Prototyping & Design Engineering"],"hasOfferCatalog":{"@type":"OfferCatalog","name":"John Evans' Sons, LLC Capability Catalog","itemListElement":[{"@type":"Offer","position":1,"itemOffered":{"@type":"Service","@id":"https://mfr.io/springcompany#capability-ae71d703-21d8-44a6-a93f-ce15cbbaf243","name":"Precision Spring & Wire Forming","provider":{"@id":"https://mfr.io/springcompany#organization"},"serviceType":"Spring Wire Forming","description":"John Evans’ Sons produces custom helical, flat‑strip and constant‑force springs plus complex wire forms by combining multi‑axis CNC coiling, progressive die/fourslide stamping and proprietary strip‑coiling equipment. Round‑wire diameters from 0.004 in – 0.236 in (0.10 mm – 6.00 mm) and strip gauges 0.002 in – 0.170 in thick by up to 4.0 in wide cover micro medical springs through large industrial counterbalances. In‑house tool‑and‑die, vacuum/atmosphere heat‑treat, end grinding, shot peen, passivation, electropolish and a full menu of polymer, phosphate and black‑oxide coatings deliver springs ready for aerospace, medical and industrial service. Closed‑loop vision feedback, force/torque SPC and certified quality systems (ISO 9001:2015, AS9100 D, ISO 13485:2016) ensure every spring meets dimensional, load and life targets from single prototypes to 100‑million‑piece programs."}},{"@type":"Offer","position":2,"itemOffered":{"@type":"Service","@id":"https://mfr.io/springcompany#capability-73d5444d-df63-4299-8788-d77eec67a668","name":"Helical Shock & Vibration Isolators","provider":{"@id":"https://mfr.io/springcompany#organization"},"serviceType":"Helical Wire Rope Isolators","description":"John Evans' Sons manufactures all-metal helical isolators from aircraft-grade stainless steel wire rope wound into a helix and secured with metal retaining bars. Designed for multidirectional shock and vibration protection, the isolators operate in compression, tension, shear, and roll across all axes and support loads from a few pounds to thousands. Standard and custom configurations serve shipboard, vehicle, aircraft, shipping-case, industrial, ordnance, medical, and chimney applications."}},{"@type":"Offer","position":3,"itemOffered":{"@type":"Service","@id":"https://mfr.io/springcompany#capability-56057bd5-1400-434b-be1b-0581c13fd88a","name":"Turnkey Mechanical Spring Assemblies","provider":{"@id":"https://mfr.io/springcompany#organization"},"serviceType":"Spring Assembly & Integration","description":"John Evans’ Sons delivers complete spring-based sub-assemblies – from brush-spring packs to large counterbalance mechanisms – integrating CNC-machined, stamped, welded and heat-treated components in-house. A single PO secures design support, custom fixturing, precision machining, certified welding/brazing and 100 % functional testing under ISO 9001/AS9100/ISO 13485 oversight, reducing supply-chain risk and time-to-market for aerospace, medical and industrial equipment OEMs."}},{"@type":"Offer","position":4,"itemOffered":{"@type":"Service","@id":"https://mfr.io/springcompany#capability-95b530f0-fb1e-4dc1-a0b9-d682d1962f80","name":"Precision Micro Spring Manufacturing","provider":{"@id":"https://mfr.io/springcompany#organization"},"serviceType":"Micro Spring Coiling","description":"John Evans’ Sons produces ultra-miniature compression, extension and flat springs from wire or strip as thin as 0.002 in (0.05 mm). CNC micro-coilers with laser-monitored feedback, in-line stress relief and in-house tooling deliver repeatable geometry at scale, while ISO 9001/13485/AS9100 quality and 100 % optical inspection ensure reliable parts for medical, aerospace and micro-electronic devices."}},{"@type":"Offer","position":5,"itemOffered":{"@type":"Service","@id":"https://mfr.io/springcompany#capability-80d3710f-35e5-49a3-a2b8-85b98d19fbce","name":"Rapid Spring Prototyping & Design Engineering","provider":{"@id":"https://mfr.io/springcompany#organization"},"serviceType":"Rapid Spring Prototyping & Design Engineering","description":"John Evans’ Sons turns napkin sketches into production-ready springs fast. Certified engineers perform DFM/RFQ feasibility reviews, create digital spring models with finite-element stress and fatigue analysis, fabricate custom prototype tooling in-house, and coil or stamp trial parts from wire/strip as fine as 0.002 in. 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