What Technical Parameters Are Required for Fin Die Spare Parts Purchasing?

When buying fin die spare parts — whether for replacing worn components or stocking up for maintenance — missing even one key technical parameter will lead to wrong orders, ill-fitting parts, and costly production downtime. A lot of buyers just send a brand name or rough model, but that’s never enough for precision fin die parts. This quick, practical guide covers the must-have technical specs, clear definitions, critical data requirements, real workshop scenarios, and pro purchasing tips to make sure you get the right parts on the first try, no returns or delays.

Fin die spare part technical parameters are fixed, measurable specs that define the size, fit, and function of replacement components (punches, fins, inserts, guide sleeves) for OAK, HIDAK, and domestic fin dies. These parameters ensure the spare parts match your existing mold perfectly, without modification, and keep production running at full yield. Every parameter is non-negotiable — even a small mismatch makes parts unusable for precision stamping.

• Hole Diameter (孔径): Exact inner/outer diameter of fin holes, tolerance within 0.002-0.005mm for proper fit
• Row Number (排数): Number of fin rows the mold produces (1-row, 2-row, multi-row), must match original die design
• Flanging Height (翻边高度): Vertical height of fin flanges, standard range 2-8mm, fixed tolerance required
• Fin Pitch (翅片间距): Distance between adjacent fins, core for heat exchanger production consistency
• Die Model & Brand: Exact fin die model (OAK/HIDAK/domestic) and compatible machine type

For routine replacement of worn punches and fins, all basic parameters (hole diameter, flanging height, pitch) are required to avoid jamming the die. For multi-row fin dies, row number is the most critical spec — wrong row count ruins entire production batches. For high-precision heat exchanger workshops, tolerance data must be listed clearly, as even a 0.01mm error causes defective fins and wasted materials.

Never place an order without full parameter details; don’t let suppliers guess based on brand alone. Write all specs clearly on your purchase order, and ask the supplier to confirm compatibility before shipping. For old or custom dies, measure parameters on-site instead of relying on memory, and keep a parameter log for quick reorders. Always double-check tolerance requirements, especially for high-speed production lines.