Comparison ledger
Lapmaster 15 Lapper, PR Hoffman 1500, side by side. Every value shown is drawn from the cited encyclopedia entries.
| Attribute | 15 LapperLapmaster | 1500PR Hoffman |
|---|---|---|
| OEM | Lapmaster | PR Hoffman |
| Category | CMP | CMP |
| Wafer size | — | — |
| Process node | — | — |
| Introduced | — | — |
| Production run | — | — |
| Lifecycle | — | — |
| Lifecycle milestones | — | — |
| Control system | — | — |
| Generation | — | — |
| Family | Lapmaster 15 | PR Hoffman 1500 |
| Specifications | ||
| Number Of Conditioning Rings | Up to 3[1] | — |
| Ring ID | Up to 5.5″[1] | — |
| Plate Diameter – Outside | 15″[1] | — |
| Plate Diameter – Inside | 3 1/2″[1] | — |
| Standard RPM | 60[1] | — |
| Drive Motor | 1/2 HP[1] | — |
| Electrics | 110V / 1Ph / 60Hz[1] | — |
| Dimensions – Approximate | 26″(L-R) x 21″(F-B) x 22″(H)[1] | — |
| Configuration | Equipped with:[1] | — |
| Equipped with: 15″ Cast Iron Plate | Included[1] | — |
| Equipped with: (3) Yoke/Roller Bearing Assemblies | Included[1] | — |
| Equipped with: (3) Conditioning Rings | Included[1] | — |
| Equipped with: (3) Hold Downs | Included[1] | — |
| Equipped with: 30 Minute Timer | Included[1] | — |
| Model | — | 85T[2] |
| Type | — | Double-sided planetary lapping / polishing machine[2] |
| Diameter | — | 19 inch[2] |
| Motor | — | 1.5 horsepower variable speed DC motor with controller[2] |
| Controller input | — | 208/230V, 50/60 Hz[2] |
| Carrier | — | 85 tooth carrier[2] |
| Recommended part thickness minimum | — | 0.010 inch [250 micron][2] |
| Recommended part diameter maximum | — | 4-1/4 inch [108 mm] or smaller[2] |
| Maximum part circle | — | 6.6 inch [168 mm][2] |
| Stainless steel hood | — | Standard on all PR-1 models[3] |
| Plate lifter | — | Standard on the 85 tooth model[3] |