{"product_id":"od-50mm-id25mm-dia-springs-compression-mould-spring-light-medium-heavy-load-duty","title":"OD 50mm\/ID25mm Dia Springs Compression Mould Spring Light\/Medium\/Heavy Load Duty","description":"\u003cdiv class=\"hdiy-desc\"\u003e\n\u003cdiv class=\"hdiy-overview\"\u003e\n\u003ch2\u003eOD 50mm ID 25mm Compression Mould Springs — Reliable Load Control for Industrial Tooling\u003c\/h2\u003e\n\u003cp\u003eEngineers and toolmakers working with stamping dies, injection moulds, and precision jigs know the frustration of springs that fatigue prematurely or deliver inconsistent force. These OD 50mm \/ ID 25mm compression mould springs are engineered for repeatable, controlled load performance across light, medium, and heavy duty applications — making them a dependable choice for production tooling, automation fixtures, and mechanical assemblies.\u003c\/p\u003e\n\u003cp\u003eEach spring features an outer diameter of 50mm (≈1.97\") and an inner diameter of 25mm (≈0.98\"), with available lengths ranging from 50mm to 450mm (≈1.97\" to 17.72\"). Available in Yellow (light load) and Red (heavy load) colour-coded finishes, the springs are manufactured from high-fatigue-resistance alloy steel wire with a rectangular cross-section for maximum energy storage per unit volume.\u003c\/p\u003e\n\u003cp\u003eTypical use cases include die and mould stripping applications requiring consistent ejection force, robotic end-of-arm tooling where precise spring return is critical, and industrial press fixtures where long-cycle fatigue life is essential for uninterrupted production runs.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-compat\"\u003e\n\u003cspan class=\"hdiy-compat-icon\"\u003e🔧\u003c\/span\u003e \u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed for standard mould spring pockets with 50mm OD bores. Verify free length and load rating against your tooling specification before ordering. Inner diameter of 25mm accommodates guide pins up to approximately 24mm.\u003c\/div\u003e\n\u003cdiv class=\"hdiy-features\"\u003e\n\u003ch2\u003e✅ Key Features of These OD 50mm Compression Mould Springs\u003c\/h2\u003e\n\u003cdiv class=\"hdiy-list\"\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🟡🔴\u003c\/span\u003e \u003cstrong\u003eColour-Coded Load Grades\u003c\/strong\u003e\n\u003cp\u003eYellow indicates light load; Red indicates heavy load — enabling instant visual identification and reducing assembly errors in multi-spring tooling setups.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📐\u003c\/span\u003e \u003cstrong\u003eWide Length Selection\u003c\/strong\u003e\n\u003cp\u003eTwelve length options from 50mm to 450mm (≈1.97\" to 17.72\") allow precise free-length matching to your mould or fixture design without custom fabrication.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e⚙️\u003c\/span\u003e \u003cstrong\u003eRectangular Wire Cross-Section\u003c\/strong\u003e\n\u003cp\u003eThe rectangular wire profile delivers higher load capacity and greater energy storage compared to round-wire springs of equivalent envelope size — ideal for compact tooling cavities.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔩\u003c\/span\u003e \u003cstrong\u003eConsistent OD\/ID Tolerances\u003c\/strong\u003e\n\u003cp\u003e50mm outer diameter and 25mm inner diameter are held to close tolerances, ensuring reliable fit in standard mould spring pockets and smooth travel on guide pins.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔄\u003c\/span\u003e \u003cstrong\u003eHigh Fatigue Life\u003c\/strong\u003e\n\u003cp\u003eAlloy steel construction with surface treatment supports extended cycle life under repeated compression, reducing downtime from spring replacement in high-volume production environments.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🏭\u003c\/span\u003e \u003cstrong\u003eBroad Industrial Compatibility\u003c\/strong\u003e\n\u003cp\u003eSuitable for stamping dies, injection mould strippers, hydraulic press fixtures, robotic tooling, and general mechanical assemblies requiring controlled spring return force.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-table-wrap\"\u003e\n\u003ch2\u003e📐 Technical Specifications — Compression Mould Springs\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eOuter Diameter (OD)\u003c\/th\u003e\n\u003ctd\u003e50mm (≈1.97\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eInner Diameter (ID)\u003c\/th\u003e\n\u003ctd\u003e25mm (≈0.98\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFree Length Range\u003c\/th\u003e\n\u003ctd\u003e50mm – 450mm (≈1.97\" – 17.72\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWire Cross-Section\u003c\/th\u003e\n\u003ctd\u003eRectangular\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eAlloy steel (high-fatigue grade)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSurface Finish\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eLoad Grade \/ Colour\u003c\/th\u003e\n\u003ctd\u003eLight Load — Yellow; Heavy Load — Red\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSpring Rate\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMax. Deflection\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eEnd Type\u003c\/th\u003e\n\u003ctd\u003eClosed and ground\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCoil Direction\u003c\/th\u003e\n\u003ctd\u003eRight-hand\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eQuantity per Order\u003c\/th\u003e\n\u003ctd\u003e1 pc (per variant)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-faq\"\u003e\n\u003ch2\u003e❓ Frequently Asked Questions\u003c\/h2\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow do I choose the correct length for my application?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eSelect a free length that is approximately 20–30% longer than your required working length. This ensures the spring operates within its recommended deflection range and avoids coil bind. For example, if your mould stroke is 40mm, a free length of 50–60mm is typically appropriate. Refer to your tooling drawing for the spring pocket depth and maximum allowable deflection.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the difference between the Yellow and Red springs?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eYellow springs are light load grade, delivering lower force per unit of deflection — suitable for delicate stripping operations or applications where excessive force could damage the workpiece. Red springs are heavy load grade, providing significantly higher spring force for robust stripping, clamping, or return functions in demanding tooling environments.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat guide pin diameter is compatible with the 25mm inner diameter?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eThe 25mm inner diameter accommodates guide pins up to approximately 23–24mm in diameter, allowing a small clearance for smooth travel and thermal expansion. Always verify the actual ID tolerance of the specific spring you receive against your guide pin diameter before installation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eAre these springs corrosion resistant?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eThese springs are manufactured from alloy steel and include a surface treatment to provide basic corrosion protection under normal indoor industrial conditions. For environments with exposure to coolants, cutting fluids, or high humidity, additional protective measures such as periodic lubrication or a corrosion-inhibiting coating are recommended to extend service life.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I use these springs in injection moulding applications?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eYes. These mould springs are designed specifically for injection mould and stamping die applications. They are commonly used as ejector return springs, stripper plate springs, and core pull return springs. Ensure the selected load grade and free length match your mould design specifications for optimal performance.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow many pieces are included per order?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eEach order includes 1 piece per variant selected. If you require multiple springs for a multi-cavity mould or symmetrical tooling layout, simply adjust the quantity in your cart or contact us to discuss bulk pricing options.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow do I know when a compression mould spring needs to be replaced?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eReplace the spring if you observe a measurable reduction in free length (set loss), inconsistent ejection or stripping force, visible cracking or surface damage, or if the spring has exceeded the manufacturer's recommended cycle count. Proactive replacement during scheduled maintenance intervals is recommended for high-volume production tooling.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-cta\"\u003e🛒 Select your Size (O.D × I.D × Length) and Color above, then add to cart.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"HomeDIYer","offers":[{"title":"50x25x50mm \/ Yellow \/ 1","offer_id":52449913602322,"sku":"GYLZWGLBZSJ052269x1","price":37.24,"currency_code":"USD","in_stock":true},{"title":"50x25x60mm \/ Yellow \/ 1","offer_id":52449913635090,"sku":"GYLZWGLBZSJ052270x1","price":44.47,"currency_code":"USD","in_stock":true},{"title":"50x25x70mm \/ Yellow \/ 1","offer_id":52449913667858,"sku":"GYLZWGLBZSJ052271x1","price":51.82,"currency_code":"USD","in_stock":true},{"title":"50x25x80mm \/ Yellow \/ 1","offer_id":52449913700626,"sku":"GYLZWGLBZSJ052272x1","price":59.27,"currency_code":"USD","in_stock":true},{"title":"50x25x90mm \/ Yellow \/ 1","offer_id":52449913733394,"sku":"GYLZWGLBZSJ052273x1","price":67.43,"currency_code":"USD","in_stock":true},{"title":"50x25x100mm \/ Yellow \/ 1","offer_id":52449913766162,"sku":"GYLZWGLBZSJ052274x1","price":75.21,"currency_code":"USD","in_stock":true},{"title":"50x25x125mm \/ Yellow \/ 1","offer_id":52449913798930,"sku":"GYLZWGLBZSJ052275x1","price":92.18,"currency_code":"USD","in_stock":true},{"title":"50x25x150mm \/ Yellow \/ 1","offer_id":52449913831698,"sku":"GYLZWGLBZSJ052276x1","price":108.5,"currency_code":"USD","in_stock":true},{"title":"50x25x175mm \/ Yellow \/ 1","offer_id":52449913864466,"sku":"GYLZWGLBZSJ052277x1","price":126.18,"currency_code":"USD","in_stock":true},{"title":"50x25x200mm \/ Yellow \/ 1","offer_id":52449913897234,"sku":"GYLZWGLBZSJ052278x1","price":144.02,"currency_code":"USD","in_stock":true},{"title":"50x25x250mm \/ Yellow \/ 1","offer_id":52449913930002,"sku":"GYLZWGLBZSJ052279x1","price":177.86,"currency_code":"USD","in_stock":true},{"title":"50x25x300mm \/ Yellow \/ 1","offer_id":52449913962770,"sku":"GYLZWGLBZSJ052280x1","price":213.49,"currency_code":"USD","in_stock":true},{"title":"50x25x50mm \/ Red \/ 1","offer_id":52449913995538,"sku":"GYLZWGLBZSJ052751x1","price":51.38,"currency_code":"USD","in_stock":true},{"title":"50x25x60mm \/ Red \/ 1","offer_id":52449914028306,"sku":"GYLZWGLBZSJ052752x1","price":61.17,"currency_code":"USD","in_stock":true},{"title":"50x25x70mm \/ Red \/ 1","offer_id":52449914061074,"sku":"GYLZWGLBZSJ052753x1","price":71.13,"currency_code":"USD","in_stock":true},{"title":"50x25x80mm \/ Red \/ 1","offer_id":52449914093842,"sku":"GYLZWGLBZSJ052754x1","price":81.57,"currency_code":"USD","in_stock":true},{"title":"50x25x90mm \/ Red \/ 1","offer_id":52449914126610,"sku":"GYLZWGLBZSJ052755x1","price":91.91,"currency_code":"USD","in_stock":true},{"title":"50x25x100mm \/ Red \/ 1","offer_id":52449914159378,"sku":"GYLZWGLBZSJ052756x1","price":102.24,"currency_code":"USD","in_stock":true},{"title":"50x25x125mm \/ Red \/ 1","offer_id":52449914192146,"sku":"GYLZWGLBZSJ052757x1","price":126.07,"currency_code":"USD","in_stock":true},{"title":"50x25x150mm \/ Red \/ 1","offer_id":52449914224914,"sku":"GYLZWGLBZSJ052758x1","price":149.74,"currency_code":"USD","in_stock":true},{"title":"50x25x175mm \/ Red \/ 1","offer_id":52449914257682,"sku":"GYLZWGLBZSJ052759x1","price":173.67,"currency_code":"USD","in_stock":true},{"title":"50x25x200mm \/ Red \/ 1","offer_id":52449914290450,"sku":"GYLZWGLBZSJ052760x1","price":198.8,"currency_code":"USD","in_stock":true},{"title":"50x25x250mm \/ Red \/ 1","offer_id":52449914323218,"sku":"GYLZWGLBZSJ052761x1","price":248.58,"currency_code":"USD","in_stock":true},{"title":"50x25x300mm \/ Red \/ 1","offer_id":52449914355986,"sku":"GYLZWGLBZSJ052762x1","price":300.26,"currency_code":"USD","in_stock":true},{"title":"50x25x350mm \/ Red \/ 1","offer_id":52449914388754,"sku":"GYLZWGLBZSJ052763x1","price":338.34,"currency_code":"USD","in_stock":true},{"title":"50x25x400mm \/ Red \/ 1","offer_id":52449914421522,"sku":"GYLZWGLBZSJ052764x1","price":404.44,"currency_code":"USD","in_stock":true},{"title":"50x25x450mm \/ Red \/ 1","offer_id":52449914454290,"sku":"GYLZWGLBZSJ052765x1","price":457.64,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0884\/8936\/1682\/files\/Main-05_cc3c0be4-a0c2-4fc5-89ad-a4d848240e16.jpg?v=1783927299","url":"https:\/\/homediyer.com\/products\/od-50mm-id25mm-dia-springs-compression-mould-spring-light-medium-heavy-load-duty","provider":"HomeDIYer","version":"1.0","type":"link"}