In making spring process, spring shape shall be made by pushing wire rod to coiling pin. And performance of coiling is determined mainly by coiling pins.　The material of coiling pins are usually tangsten carbide or high-speed steel.  We have succeeded in developing diamond coiling pins.

The tungsten carbide or high-speed steel are typically used for coiling pins. We utilize PCD (poly-crystal diamond) characteristics to a maximum for coiling pin. These pins have some features besides long lifetime.

One feature is generation free of the tool-mark (not damaged on spring),  so you can attain high accuracy in spring manufacturing process.

The other additional feature is to obtain long spring form, so spring production line can be stable and highly reliable. Furthermore, you need the supply of the lubricant in the stainless steel coiling process with conventional pins. So the variation of concentration and kind of lubricant can occur coiling performance problems. Our diamond coiling pins do not occur this kind of trouble. Please examine our coiling pins in your process. Many coiling manufacturers have begun to use our coiling pins.

For example, the durability of producing spring for 10000pcs with tungsten carbide tool can improve to the level of 10,000,000 pcs durability by our Diamond coiling pins.. You can apply our pins to small D/d coiling. These are also applied to processing the internal spring of the catheter in medical application.

More than 100 worldwide coil manufactures introduce our diamond coiling pins