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Flat Lapping Experts

Cast Iron, Large Parts

The Challenge:
Lap one side, when opposite side is tapered, irregular, and not useable for a reference surface.

Part Specifications

Material Gray Cast Iron
Previous Operation Milling (Fly Cut)
Dimensions 28.00" L x 6.00" W x 3.00 H,
Back side is a poor reference surface due to features and taper.

Pre-machined Condition

Thickness N/A
Surface Finish 300Ra
Flatness .003"
Parallelism N/A
Presentation 57lbs. each


Thickness Stock Removal .005" to clean up
Surface Finish 20Ra Max
Flatness .0005"
Parallelism N/A
Notes Exceeded customer expectation for finish quality, flatness, and speed of delivery.

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