Grinding

Centerless Form Grinder: PG-9D-HD

The Glebar PG-9D-HD Centerless Form Grinder is a high-precision version of the Glebar PG-9B-HD. With its 10 in wheel, this form grinder is capable of multiple-part-per-cycle grinding, also offering precise slide positions and controllability. Glebar’s unique form grinding process can shape any spherical or cylindrical component into unlimited forms on a large variety of materials.

When automated, this machine’s productivity and performance are nearly impossible to surpass. Components ground on a Glebar Form Grinder are ubiquitous in households worldwide, including deodorant balls, golf balls, composite spindles, contact lens blanks, check valves, frac balls, fuses, insulators, and many more.

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Product Details

Key Features

  • Multiple parts per cycle can be generated in a single infeed motion.
  • Can be fitted with a 15 HP main spindle motor for heavy grinding of materials such as G10 fiberglass to turn cylinders into balls.
  • To shape the grinding wheel, the machine can become a work wheel dresser allowing the operator to manually dress the grinding wheel on the machine.
  • The control software is entirely developed at Glebar and is fully customizable to address your application and process. An intuitive touch-screen interface allows for ease of use and flexibility.
  • Precision collets ensure optimum concentricity control.
  • The machine software interface was developed to allow an unskilled operator to run many high-precision machines simultaneously.
  • Remote connectivity simplifies troubleshooting and maintenance.
  • Feeding systems for rod or ball feeding from the top or side of the machine include semi-automated systems for testing and small production runs up to stainless-steel hoppers that can hold thousands of balls.
  • Available as an enclosed version with safety interlocks.
  • Cast iron frame standard; also available with granite machine bed for increased thermal insulation and reduce vibration.

Specs

  • Grinding Diameter Capacity: Min: 0.002 in (0.05 mm) – Max: 4 in (100 mm)
  • Roundness: 0.0002 in (5 μm)
  • Work Wheel Diameter: 9 in (229 mm)
  • Work Wheel Length: 10.125 in (257 mm)
  • Work Wheel Power: 7.5 HP (5.6 kW), 10 HP (7.5 kW), or 15 HP (11 kW)
  • Work Wheel RPM: 2,375
  • Regulating Wheel Power: 2 HP (1.4 5kW)
  • Regulating Wheel RPM: 10 – 400
  • Machine Weight: 2,000 lb (908 kg)
  • Grinding Length: Max 10 in (254 mm)
  • Electrical requirements: 480 V, 3 PH, 60 Hz, 40 A
  • Air requirements: 80-90 psi, 3 cfm
  • Machine Footprint: 47 in x 39 in x 50 in (119 cm x 99 cm x 127 cm)
  • Resolution: 0.1 μm (0.000004 in)
  • Hydraulic Pump Motor Power: 2 HP (1.5 kW)

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