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All Categories > Machinery > Precision Optics Machinery > Optical Pitch Polishing Machines > Item # ABOP-48  
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Item # ABOP-48, Air Bearing Optical Polishing

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  • The Lapmaster 48 air bearing optical polishing machine is designed for production of large area high quality plano optics, or where high outputs are required.
  • The machine has a 48 inch (1219 mm) optical pitch annular lap, and three work stations that can be reciprocated.
  • As with other machines in the series, unlike conventional so called “worm and wheel” polishers, the pitch lap spindle is not mounted on a mechanical reduction gear box. The unique air bearing feature has the pitch lap and its support plate riding on a very thin cushion of compressed air. This gap is only a few thousandths of an inch wide.
  • Drive is from an electric motor via a lay shaft, and is transferred to the lap using a multi vee drive belt located on the periphery of the support plate.
  • This approach considerably reduces the vibration at the polishing surface.

 Specifications   Features and Technical Service   

Model Type


No. of Conditioning Rings


No. of Work Station


Lapping Plate Diameter

48 inches

Lapping Plate Diameter

1219 mm

Work Holder Ring I.D.

15.75 inches

Work Holder Ring I.D.

400 mm

Approx. Pitch Depth

2 inches

Approx. Pitch Depth

50 mm


2780 kg


6129 lbs

Shipping Weight

3480 kg

Shipping Weight

7672 lbs


·  Yoke for Work Holder Ring

·  Conditioning Weight

·  Workholder Ring & Working Face

·  Dimensional Drawing

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