Whatsminer KF1922 Tin Tool - ASIC Stencil Plate & Chip Holder M20 M21 Series

Whatsminer KF1922 Tin Tool Kit | Complete M20 M21 ASIC Repair Set with Stencil & Chip Holder

The Whatsminer KF1922 Tin Tool Kit is the complete ASIC chip replacement set for the Whatsminer M20, M20S, M21, and M21S series — engineered for precision hashboard maintenance with both stencil plate and chip holder in a single kit. CNC laser-cut from high-grade steel alloy, the kit delivers burr-free, perfectly round apertures for accurate solder placement and prevents chip damage during the replacement process.

This is the kit version of the KF1922 family — for benches that already own a holder, the standalone stencil plate ships separately. For repair shops, mining farms, and ASIC-maintenance professionals running M20/M21 fleets, the complete kit reduces per-chip rework time and produces reliable, consistent results across long maintenance shifts.

Ultra-Precise CNC Laser-Cut Stencil for Flawless Chip Repairs

• CNC laser-cut stencil — burr-free, perfectly round holes for accurate solder placement.
• Complete repair kit — includes both stencil plate and chip holder.
• Precision alignment — ensures perfect chip-foot positioning every cycle.
• Durable steel-alloy construction — withstands repeated high-temperature use.
• Chip protection — prevents damage during the replacement process.
• Optimised for M20, M20S, M21, M21S models across the full Whatsminer first-gen line.

Whatsminer M20 / M21 Repair Workflow

Mount the failed hashboard on the chip holder so the chip array sits flat and exposed. Position the laser-cut stencil over the target chip site, apply solder paste with a squeegee in a single pass, and lift the stencil cleanly to leave precise deposits. Place the new ASIC, reflow at the standard BGA profile, and run the chain through your test fixture to confirm full hashboard recovery. The kit's reusable steel-alloy build means a single tool covers an entire fleet refurbishment programme without losing aperture geometry.

KF1922 Tin Tool Specifications

Related products

• Whatsminer KF1922 Stencil Plate (Stencil-Only)
• Whatsminer KF1973/KF1973E Tin Tool – M50/M53
• Whatsminer KF1968 Tin Tool Kit – M50/M50S
• Whatsminer KF1978E Stencil & Tin Fixture – M50S/M60S

Repair shops servicing M20 / M21 fleets in volume? Email contact@lys-sz.com for bulk kit pricing and matched ASIC-chip stock. Worldwide shipping from our Shenzhen warehouse.