{"product_id":"blue-die-springs-light-load-pack-of-2","title":"Blue Die Springs, 65Mn Rectangular Wire — TL\/SWL Light Load — Pack of 2","description":"\u003cp\u003eBlue rectangular-wire die springs in 65Mn spring steel, electrophoretic-coated, for mold and die maintenance or replacement. Sold in packs of 2. Sizes are given as \u003cstrong\u003eoutside diameter × free length\u003c\/strong\u003e in millimetres.\u003c\/p\u003e\n\n\u003ch2\u003eLoad class — read this before ordering\u003c\/h2\u003e\n\u003cp\u003eThese springs follow the \u003cstrong\u003eJIS-style colour system, where blue is TL — light load\u003c\/strong\u003e. It is the general-purpose middle of the three classes we stock.\u003c\/p\u003e\n\u003cp\u003eThis is not the same as ISO 10243, where blue means \u003cem\u003emedium\u003c\/em\u003e load. If your drawing or your existing tool calls out an ISO blue spring, these are softer than what you are expecting. When in doubt, work from the load values below rather than from the colour.\u003c\/p\u003e\n\n\u003ch2\u003eMaximum compression depends on the life you need\u003c\/h2\u003e\n\u003cp\u003eCompression limits are quoted against a cycle count, and confusing the two figures is the commonest reason die springs fail early. For blue TL:\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eCycle life\u003c\/th\u003e\n\u003cth\u003eMax compression (% of free length)\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e300,000 cycles\u003c\/td\u003e\n\u003ctd\u003e40%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e500,000 cycles\u003c\/td\u003e\n\u003ctd\u003e36%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1,000,000 cycles\u003c\/td\u003e\n\u003ctd\u003e32%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSolid (reference only)\u003c\/td\u003e\n\u003ctd\u003e43%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eDesign a long-run production tool against the 32% figure and treat 40% as a short-life limit rather than as headroom. The solid figure is a reference for clearance calculations, not an operating condition. A spring that comes back out shorter than its original free length has already been over-compressed and will not recover.\u003c\/p\u003e\n\n\u003ch2\u003eMaximum compression load by outside diameter\u003c\/h2\u003e\n\u003cp\u003eBlue TL, at 40% compression — the 300,000-cycle basis. These values depend on outside diameter alone: an 8 × 60 spring has the same limit load as an 8 × 20. Free length changes the available stroke, not the peak force. \u003cstrong\u003eFor the one-million-cycle basis (32%), multiply by 0.8.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eOD (mm)\u003c\/th\u003e\n\u003cth\u003eID (mm)\u003c\/th\u003e\n\u003cth\u003eMax load (kgf)\u003c\/th\u003e\n\u003cth\u003eMax load (N)\u003c\/th\u003e\n\u003cth\u003eMax load (lbf)\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e6\u003c\/td\u003e\n\u003ctd\u003e3\u003c\/td\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003ctd\u003e78\u003c\/td\u003e\n\u003ctd\u003e17.6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003ctd\u003e10\u003c\/td\u003e\n\u003ctd\u003e98.1\u003c\/td\u003e\n\u003ctd\u003e22.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e10\u003c\/td\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003ctd\u003e14.5\u003c\/td\u003e\n\u003ctd\u003e142.2\u003c\/td\u003e\n\u003ctd\u003e32.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e12\u003c\/td\u003e\n\u003ctd\u003e6\u003c\/td\u003e\n\u003ctd\u003e21\u003c\/td\u003e\n\u003ctd\u003e206\u003c\/td\u003e\n\u003ctd\u003e46.3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e14\u003c\/td\u003e\n\u003ctd\u003e7\u003c\/td\u003e\n\u003ctd\u003e28\u003c\/td\u003e\n\u003ctd\u003e275\u003c\/td\u003e\n\u003ctd\u003e61.7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e16\u003c\/td\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003ctd\u003e35\u003c\/td\u003e\n\u003ctd\u003e343\u003c\/td\u003e\n\u003ctd\u003e77.2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e18\u003c\/td\u003e\n\u003ctd\u003e9\u003c\/td\u003e\n\u003ctd\u003e43\u003c\/td\u003e\n\u003ctd\u003e422\u003c\/td\u003e\n\u003ctd\u003e94.8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e20\u003c\/td\u003e\n\u003ctd\u003e10\u003c\/td\u003e\n\u003ctd\u003e54\u003c\/td\u003e\n\u003ctd\u003e530\u003c\/td\u003e\n\u003ctd\u003e119.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e22\u003c\/td\u003e\n\u003ctd\u003e11\u003c\/td\u003e\n\u003ctd\u003e67\u003c\/td\u003e\n\u003ctd\u003e657\u003c\/td\u003e\n\u003ctd\u003e147.7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e25\u003c\/td\u003e\n\u003ctd\u003e12.5\u003c\/td\u003e\n\u003ctd\u003e84\u003c\/td\u003e\n\u003ctd\u003e824\u003c\/td\u003e\n\u003ctd\u003e185.2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e27\u003c\/td\u003e\n\u003ctd\u003e13.5\u003c\/td\u003e\n\u003ctd\u003e100\u003c\/td\u003e\n\u003ctd\u003e981\u003c\/td\u003e\n\u003ctd\u003e220.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eThese are limit values. For a design you intend to run production on, keep normal working compression well below the maximum; running at the limit shortens fatigue life sharply.\u003c\/p\u003e\n\n\u003ch2\u003eSame size, different load class\u003c\/h2\u003e\n\u003cp\u003eAll three colours share outside diameters and free lengths, so they are dimensionally interchangeable at the same OD. What changes is the force and the usable stroke. At Ø25, for comparison: yellow gives 50 kgf at 50% compression, blue 84 kgf at 40%, red 125 kgf at 32%. More force, less travel, in that order.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/yellow-die-springs-65mn-rectangular-wire-tf-swf-extra-light-load-pack-of-2\"\u003eYellow — TF, extra light\u003c\/a\u003e. Less force than blue, but tolerates more compression for the same cycle life. The right answer when you need travel in a shallow pocket. Note its inside diameter is larger at Ø20 and Ø25 (11 and 13.5 mm against blue's 10 and 12.5) because the wire is thinner.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBlue — TL, light\u003c\/strong\u003e (this page). Roughly 1.4 to 1.7 times the yellow load at the same outside diameter.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/red-die-springs-65mn-rectangular-wire-tm-swm-medium-load-pack-of-2\"\u003eRed — TM, medium\u003c\/a\u003e. About 1.5 times blue again, with less stroke. Ø20 and above only.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e65Mn spring steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWire section\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRectangular\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSurface\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eElectrophoretic coating\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eService temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e−30 °C to +150 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eColour \/ code\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBlue, TL\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLoad class\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLight (JIS-style system)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSizes available\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eØ8, Ø10, Ø12, Ø16, Ø20, Ø25 × 20–100 mm free length\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePack quantity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2 pieces\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOrigin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDanyang, Jiangsu, China\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\n\u003ch2\u003eChoosing a size\u003c\/h2\u003e\n\u003cp\u003eCheck outside diameter against your bore, inside diameter against any pin the spring sits over, free length against your installed height, and confirm the working compression your application needs falls inside the limit for the cycle life you are designing to. If you are replacing an existing spring, matching outside diameter, free length and colour is usually enough.\u003c\/p\u003e\n\n\u003ch2\u003eNeed something else?\u003c\/h2\u003e\n\u003cp\u003eØ6, Ø14, Ø18, Ø22 and Ø27, free lengths to 300 mm, and heavier classes are available. \u003ca href=\"\/pages\/request-a-quote\"\u003eRequest a quote\u003c\/a\u003e with your size and required load, and we will come back within one business day.\u003c\/p\u003e\n\n\u003ch2\u003eShipping\u003c\/h2\u003e\n\u003cp\u003eInternational freight is calculated on packed chargeable weight. See \u003ca href=\"\/pages\/shipping-delivery\"\u003eShipping \u0026amp; Delivery\u003c\/a\u003e for destinations and transit times.\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003ePackaging images are illustrative. Actual protective materials and carton format vary with size, quantity and shipping route.\u003c\/em\u003e\u003c\/p\u003e","brand":"Privley Mold Components","offers":[{"title":"8 × 20","offer_id":52257949384924,"sku":"PMC-DIES-001","price":8.9,"currency_code":"USD","in_stock":true},{"title":"8 × 30","offer_id":52257949417692,"sku":"PMC-DIES-002","price":8.9,"currency_code":"USD","in_stock":true},{"title":"8 × 40","offer_id":52257949450460,"sku":"PMC-DIES-003","price":9.9,"currency_code":"USD","in_stock":true},{"title":"8 × 50","offer_id":52257949483228,"sku":"PMC-DIES-004","price":9.9,"currency_code":"USD","in_stock":true},{"title":"8 × 60","offer_id":52257949515996,"sku":"PMC-DIES-005","price":10.9,"currency_code":"USD","in_stock":true},{"title":"10 × 30","offer_id":52257949548764,"sku":"PMC-DIES-006","price":9.9,"currency_code":"USD","in_stock":true},{"title":"10 × 40","offer_id":52257949581532,"sku":"PMC-DIES-007","price":10.9,"currency_code":"USD","in_stock":true},{"title":"10 × 50","offer_id":52257949614300,"sku":"PMC-DIES-008","price":11.9,"currency_code":"USD","in_stock":true},{"title":"10 × 60","offer_id":52257949647068,"sku":"PMC-DIES-009","price":12.9,"currency_code":"USD","in_stock":true},{"title":"10 × 80","offer_id":52257949679836,"sku":"PMC-DIES-010","price":14.9,"currency_code":"USD","in_stock":true},{"title":"8 × 80","offer_id":52300804128988,"sku":"PMC-DIES-011","price":12.9,"currency_code":"USD","in_stock":true},{"title":"8 × 100","offer_id":52300804161756,"sku":"PMC-DIES-012","price":14.9,"currency_code":"USD","in_stock":true},{"title":"10 × 20","offer_id":52300804194524,"sku":"PMC-DIES-013","price":8.9,"currency_code":"USD","in_stock":true},{"title":"10 × 100","offer_id":52300804227292,"sku":"PMC-DIES-014","price":16.9,"currency_code":"USD","in_stock":true},{"title":"12 × 20","offer_id":52300804260060,"sku":"PMC-DIES-015","price":9.9,"currency_code":"USD","in_stock":true},{"title":"12 × 30","offer_id":52300804292828,"sku":"PMC-DIES-016","price":10.9,"currency_code":"USD","in_stock":true},{"title":"12 × 40","offer_id":52300804325596,"sku":"PMC-DIES-017","price":11.9,"currency_code":"USD","in_stock":true},{"title":"12 × 50","offer_id":52300804358364,"sku":"PMC-DIES-018","price":12.9,"currency_code":"USD","in_stock":true},{"title":"12 × 60","offer_id":52300804391132,"sku":"PMC-DIES-019","price":13.9,"currency_code":"USD","in_stock":true},{"title":"12 × 80","offer_id":52300804423900,"sku":"PMC-DIES-020","price":15.9,"currency_code":"USD","in_stock":true},{"title":"12 × 100","offer_id":52300804456668,"sku":"PMC-DIES-021","price":17.9,"currency_code":"USD","in_stock":true},{"title":"16 × 20","offer_id":52300804489436,"sku":"PMC-DIES-022","price":11.9,"currency_code":"USD","in_stock":true},{"title":"16 × 30","offer_id":52300804522204,"sku":"PMC-DIES-023","price":12.9,"currency_code":"USD","in_stock":true},{"title":"16 × 40","offer_id":52300804554972,"sku":"PMC-DIES-024","price":13.9,"currency_code":"USD","in_stock":true},{"title":"16 × 50","offer_id":52300804587740,"sku":"PMC-DIES-025","price":14.9,"currency_code":"USD","in_stock":true},{"title":"16 × 60","offer_id":52300804620508,"sku":"PMC-DIES-026","price":15.9,"currency_code":"USD","in_stock":true},{"title":"16 × 80","offer_id":52300804653276,"sku":"PMC-DIES-027","price":17.9,"currency_code":"USD","in_stock":true},{"title":"16 × 100","offer_id":52300804686044,"sku":"PMC-DIES-028","price":19.9,"currency_code":"USD","in_stock":true},{"title":"20 × 25","offer_id":52300805341404,"sku":"PMC-DIES-029","price":13.9,"currency_code":"USD","in_stock":true},{"title":"20 × 30","offer_id":52300805374172,"sku":"PMC-DIES-030","price":14.9,"currency_code":"USD","in_stock":true},{"title":"20 × 40","offer_id":52300805406940,"sku":"PMC-DIES-031","price":15.9,"currency_code":"USD","in_stock":true},{"title":"20 × 50","offer_id":52300805439708,"sku":"PMC-DIES-032","price":16.9,"currency_code":"USD","in_stock":true},{"title":"20 × 60","offer_id":52300805472476,"sku":"PMC-DIES-033","price":17.9,"currency_code":"USD","in_stock":true},{"title":"20 × 80","offer_id":52300805505244,"sku":"PMC-DIES-034","price":19.9,"currency_code":"USD","in_stock":true},{"title":"20 × 100","offer_id":52300805538012,"sku":"PMC-DIES-035","price":21.9,"currency_code":"USD","in_stock":true},{"title":"25 × 25","offer_id":52300805570780,"sku":"PMC-DIES-036","price":15.9,"currency_code":"USD","in_stock":true},{"title":"25 × 30","offer_id":52300805603548,"sku":"PMC-DIES-037","price":16.9,"currency_code":"USD","in_stock":true},{"title":"25 × 40","offer_id":52300805636316,"sku":"PMC-DIES-038","price":17.9,"currency_code":"USD","in_stock":true},{"title":"25 × 50","offer_id":52300805669084,"sku":"PMC-DIES-039","price":18.9,"currency_code":"USD","in_stock":true},{"title":"25 × 60","offer_id":52300805701852,"sku":"PMC-DIES-040","price":19.9,"currency_code":"USD","in_stock":true},{"title":"25 × 80","offer_id":52300805734620,"sku":"PMC-DIES-041","price":21.9,"currency_code":"USD","in_stock":true},{"title":"25 × 100","offer_id":52300805767388,"sku":"PMC-DIES-042","price":23.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0846\/7650\/9916\/files\/blue-die-springs-pack-hero-v2.png?v=1788930246","url":"https:\/\/privleymold.com\/products\/blue-die-springs-light-load-pack-of-2","provider":"Privley Mold Components","version":"1.0","type":"link"}