Number Stamping Dies
Hard Punches for Long Life
Do you need Number Stamping Dies designed for high wear? We manufacture custom punches and inserts, as the punch is the most worn part of a die. Many clients purchase single punches from us, and we often use tungsten carbide due to its exceptional hardness and slow wear rate. For your Number Stamping Dies, we use slow wire cutting with a precision of 0.005mm. The finishing is done with a surface grinder, achieving a precision of 0.002mm. We also use CNC for making steps or hangers on the punch, ensuring a concentricity of 0.002mm.

A Real Case for 2 Million Strokes
Here's a real-world example: One electronics client had a punch that hit 20,000 times per day. His previous punch lasted only 500,000 strokes. We supplied him with a batch of tungsten punches, carefully controlling the hardness to approximately 90 HR. The new punches lasted over 2 million strokes, saving him a significant amount of changeover time. We can achieve the same results for your Number Stamping Dies. We also manufacture various inserts and use EDM for inner holes, with an EDM precision tolerance of 0.003mm.

Flexible MOQ for Spare Parts
We can produce both standard and custom parts. Our EDM corner precision is 0.01mm, and we apply a mirror finish of RA0.2. This smooth surface prevents material from sticking. A common question is about minimum order quantity (MOQ). For Number Stamping Dies parts, we are happy to discuss orders as small as one set. Simply provide a drawing or sample, and we'll make it for you. We offer EXW, FOB, and DDP shipping options and are ready to process your trial order.

Specification Table
|
Item |
Parameter |
Item |
Parameter |
|
Whole Mold Precision |
0.005mm |
EDM Precision Tolerance |
0.003mm |
|
Injection Molding Precision |
0.02mm |
EDM Corner Precision |
0.01mm |
|
Mold Life |
2 Million Strokes |
Mirror EDM Finish |
RA0.2 |
|
Material Hardness Range |
30~90 HR |
Slow Wire Cutting Precision |
0.005mm |
|
Surface Grinding Precision |
0.001mm |
Slow Wire Parallel/Straightness |
0.001mm |
|
Grinding Precision |
0.002mm |
CNC Concentricity |
0.002mm |




