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> Sheffield crush form grinder model 110C
Sheffield crush form grinder model 110C
This machine is in great condition in and out.
What are the advantages of Crush Grinding?
* The finish O.D. form can be crush ground after heat treat or nitriding.
* The whole OD form is created at the same time, which establishes consistency from part to part—a real plus where interchangeability is an issue!
* Ground 32 finish or better.
* Eliminates or minimizes burrs by developing break edges or radii on the crush form.
* Diameters of the form are concentric to each other.
* Accuracy and repeatability: diametrical .0005, linear .001.
* Lower cost per part—for example: grind 6 grooves all at once, as opposed to putting 6 grooves in one at time!
Crush Grinding is not limited to heat treated parts.
Crush Grinding can also be used on mild steels, brass, aluminum and plastic, as well as chrome-plated parts. In other words, if it can be machined, it is a good candidate for Crush Grinding.
Max Grinding Wheel Diameter ............................... 16"
Minimum Diameter...................................................... 13"
Hole Diameter ......................................................... 8"
Wheel Speeds – standard 1800rpm-7500SFPM (16")
- optional 2150rpm-9000SFPM (16")
- optional 2865rpm-12000SFPM(16")
Work speeds-variable 95-1600 rpm
Max wheelhead adjustment 5-1/2"
Wheelhead rapid traverse to 4 positions 3/8",3/4",1-1/8",1-1/2"
Wheelhead feed range (standard min) .008" ipm
Wheelhead feed range (standard max) .500" ipm
Crushtrue feed range (standard min) .008" ipm
Crushtrue feed range (standard max) .090" ipm
Tailstock center taper No. 3 MT
Workhead live center collet capacity 1" dia
Optional center adapter for workhead taper No. 3 MT
Platen swivel adjustment 2 deg clock,5 deg counter
Floor to work center distance 41"
Slow wheel crush speed motor ½ HP
Rapid traverse pump motor 3 HP
