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Coffee Grinder Cranks Checked on a Gauge Plate
High-precision CNC bending of 304 and 303 stainless coffee grinder crank rods - every handle dropped onto a machined gauge plate to prove the bend angles.
Key Specifications
- Materials
- 304 and 303 stainless steel rod
Key Features
- Gauge plate proves each crank instantly
- Bend angles locked to the fixture slots
- Bearing-seat ends stay mark-free
- Gloved handling protects consumer finish
How Do You QC a Crank Handle in Two Seconds?
Short answer: Make a gauge plate. This video shows stainless coffee grinder cranks coming off the CNC bender and dropping onto a machined check fixture - if the crank seats flat, the angles are right; if it rocks, it is rejected.
What the Video Demonstrates
| Step | Operation | Result |
|---|---|---|
| 1 | Rod bent on CNC | Crank formed |
| 2 | Gauge plate check | Instant pass/fail |
| 3 | Gloved handling | Finish protected |
| 4 | Bin stacking | Go-only parts |
Key Applications
- Manual grinder and blender cranks
- Consumer appliance handles
- Any batch part with fixed angles
Why Gauge Plates Beat Calipers Here
| Caliper per angle | Gauge plate (shown) |
|---|---|
| Slow, many readings | One seat, done |
| Operator variance | Binary pass/fail |
FAQ
Do you make the gauge plates too? Yes - fixtures and dies are designed and built in-house.
Can the cranks take anodize or polish? Finishing is arranged after the gauge check.
Interested in this machine?