Services
Centerless grinding uses a machine that consists of one abrasive grinding wheel and one regulating wheel that serves as a brake and controls the speed of the part being ground. A workrest fixture supports the part between the wheels.
Services We Provide:
- Centerless grinding from .030- to 3.00-inch diameters and lengths to 12 feet (weight not to exceed 125 pounds)
- Prototypes to short-run and long-run centerless grinding production
- OEM precision centerless grinding services
- CNC machines
Materials We Work With:
- Plastics
- Injected molded parts
- Titanium
- Exotic metals
- Stainless steel
- Sintered metals
- Powdered metals
- Zinc die casting
- Alloys
- Cast materials
- Brass
- Copper
- Aluminum
- Plain carbon steel
Thrufeed, Infeed, and Profile or Form grinding services are also available
- Thrufeed grinding is used for parts that have no shoulders; it allows the part to pass from the front of the machine and exit out the back of the machine.
- Infeed grinding is used for parts with shoulders, e.g., a bolt.
- Profile or form grinding is used to grind multiple diameters of a part in a single operation.
Precision Centerless Polishing
Centerless polishing is usually an added step to improve the finish on a part. The polishing machine does not remove stock from the part; it is akin to sanding with a very fine grade of sandpaper.
Services We Provide:
- Thrufeed centerless polishing
- Infeed centerless polishing
- Centerless polishing from 0.125 inch to 2 inches in diameter
Materials We Work With:
- Plain carbon steel
- Stainless steel
- Alloys
- Cast materials
- Brass
- Copper
- Aluminum
- Titanium
- Exotic metals
Precision Straightening
Precision straightening is needed when a part is bent and is placed with fixturing on either end or at each end. Force is then used with a hydraulic ram to mechanically straighten the part. It bears down on a specific area to force the part to “flex,” thereby straightening the part. Corrections down to 0.001 are possible with Walenta’s precision machinery. This step is sometimes taken to improve part geometry in the centerless grinding process.
Services We Provide:
- Precision straightening of up to 40-inch length by 2.25-inch diameters
- Straightening of hydraulic spools, stainless steel tubing, bars & shafts, alloy, stainless and tool steels, aluminum, brass and bronze
- In some centerless grinding operations, the ability to obtain closer-than-standard-diameter tolerances and surface finishes