Mold Spring
Product Introduction: High-Quality Mold Springs
In plastic molds, stamping molds, and die-casting molds, Mold Springs are critical elastic components that provide ejection force, reset force, and material pressing force. As a mold manufacturer that produces for our own use, we maintain extremely stringent standards for load stability, fatigue resistance, and dimensional accuracy of mold springs. Every spring undergoes rigorous testing and screening to ensure no deformation, no fracture, and no fatigue attenuation during long-term high-frequency compression.
✅ Self-Produced and Self-Used, Rigorously Selected
We are not only a supplier of mold components but also a mold producer ourselves. Through extensive practical experience in our own molds, we have repeatedly validated the material selection, load characteristics, compression life, and surface treatment of springs. Only those with stable load, strong fatigue resistance, and exceptional durability are approved for our supply system.
✅ Premium Materials, Advanced Process
Our mold springs are manufactured from high-quality alloy spring steels (such as SWOSC-V, SUP, etc.), undergoing special heat treatment and stress relief processes to achieve uniform internal structure and excellent elastic performance. The surface is treated with anti-corrosion finishes (such as shot blasting, electrophoretic coating, etc.) to effectively improve fatigue life and corrosion resistance.
✅ Color Coding, Clear Load Classification
We strictly adhere to ISO/JIS standards, adopting the internationally recognized color coding system for easy identification of spring load classes:
Yellow (Extra Light Load): Suitable for light-load applications such as ejector plate return
Blue (Light Load): Suitable for general applications such as slider return
Red (Medium Load): Suitable for medium-load applications such as stripper plates
Green (Heavy Load): Suitable for heavy-load applications such as strong material pressing
Brown (Extra Heavy Load): Suitable for special heavy-load applications
✅ Complete Specifications, Long Service Life
Standard Specifications: Regular inventory of rectangular mold springs in various diameters (10mm-50mm), free lengths, and load classes for quick dispatch
Precision Guaranteed: Outer diameter tolerance controlled within ±0.5mm, free length tolerance within ±1.0mm for accurate installation fit
Long-Life Design: Through optimized design and high-quality materials, service life can reach 300,000 to over 1,000,000 cycles under maximum compression
✅ Anti-Fracture Design, Safe and Reliable
Spring ends are closed and ground flat to ensure uniform force distribution and prevent eccentric load fracture. The specially designed rectangular cross-section provides greater load capacity within the same space while effectively preventing spring buckling or bending.
✅ Complete Specifications, Customized Solutions
For standard specifications, we maintain regular inventory of ISO/JIS standard mold springs covering the full range from extra light load to extra heavy load for quick dispatch. For non-standard customization, based on your mold space and load requirements, we offer custom spring services with special diameters, special lengths, special loads, and special materials.
We Can Also Source for You
If you have requirements for mold springs or other mold components, whether standard or non-standard, we can leverage our production experience and supply chain resources to select and procure the most suitable parts for you. We know molds, and we know components.
Contact us today for samples and a quotation.
