KF1921 Tin Fixture Tool Kit Tin tool with Stencil and Holder for M20 M20s M21 M21s
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Whatsminer KF1921 Tin Fixture Tool Kit – M20 / M21 Series
This KF1921 ASIC chip tin tool is an essential station for repairing Whatsminer M20, M20S, M21, and M21S chipsets. Features a high-grade tinned tool base cover and super-durable tin steel mesh — chip tinning holes are precisely laser-punched by advanced CNC machine tools with no burrs, ensuring accurate chip foot alignment during rework.
Kit Contents
- Tin tool fixture base with high-grade tinned tool cover.
- Stencil plate — super-durable tin steel mesh.
- Chip holder — precision alignment for KF1921 footprint.
Typical Use in M20 / M21 Hashboard Repair
- KF1921 chip replacement — solder ball placement during reflow workflow.
- Hashboard refurbishment — bulk re-tinning during production refurb.
- Hot-failure recovery — boards with failed KF1921 chips.
- Bench tooling — repair shops servicing legacy M20 / M21 fleet.
KF1921 Tin Fixture Specifications
| Item | Specification |
|---|---|
| Kit Contents | Tin tool with holder + stencil plate |
| Suitable for | KF1921 ASIC chip |
| Compatible Miners | Whatsminer M20, M20S, M21, M21S |
| Stencil Construction | Tin steel mesh — CNC laser-punched, no burrs |
| Base Cover | High-grade tinned tool base |
| Condition | Brand New |
FAQ — KF1921 Tin Fixture Kit
Q: Do I need replacement KF1921 chips separately?
A: Yes — this is the tin tool kit only. Order chips + thermal grease + this fixture for complete repair workflow.
Q: KF1921 vs KF1930 tin tool — interchangeable?
A: No — different chip footprints. KF1921 = M20 / M21 generation. KF1930 = M30 / M30S. Match the tin tool to your specific chip family.
Q: Bulk pricing?
A: Yes — email contact@lys-sz.com with your monthly M20 / M21 rework volume.
Related products
- KF1921 ASIC Chip – Whatsminer M20 / M21
- KF1968 ASIC Chip – M50 / M50S / M30S++
- KF1930 ASIC Chip – M30 / M30S
- Whatsminer M60 / M50 / M30 Test Fixture
M20 / M21 refurb shops stocking KF1921 tin fixtures? Email contact@lys-sz.com for bulk pricing. Worldwide shipping from our Shenzhen warehouses.
Buying in bulk for a mining farm or repair shop?
Get dedicated B2B pricing on this part and across our full catalog — quote response within 24 hours, payment by T/T USD bank wire, and DDP delivery available for US & EU customers (and other lanes on request).
