EMS MATERIALS SCIENCE & METROLOGY CATALOG 2019–20 EDITION INSTRUMENTATION
Model 920 - Lapping and Polishing Machine
The model 920 is the first in a new generation of multi- purpose lapping machines designed for accurately lapping and polishing a wide range of materials. The 920 can be used as a standard metallurgical grinder/polisher utilizing abrasive papers, abrasive films, diamond discs, polishing cloths, etc., or it can be used as a high precision free abrasive lapping machine for flat polishing of optical and semiconductor materials.
When used as a free abrasive lapping machine, the 920 can accommodate most of our Lapping Fixtures for precise sample orientation and maximum flatness. The precision fixtures and the self turning lap ensure samples of the highest quality. In addition to flat lapping, we offer 2 fixtures for polishing oriented crystals. The crystals can be oriented and subsequently polished while maintaining their orientation.
The Model 920 is also available with two optional workstations. These independently controlled workstations rotate polishing fixtures automatically, thereby simplifying the polishing process and minimizing operator supervision. The 920 is ideal for high precision polishing in both R & D and production environments.
FEATURES Variable Speed, 10 - 600 RPM Solid, Cast Aluminum Construction Quick exchange of worn-out disc Stylish, Tabletop design
Optional workstations for semi-automatic polishing
Vibration free, quiet operation
ORDERING INFORMATION Model 920 includes: Model 920 is pre-wired for two workstation accessories and includes a water and a slurry deliver system. The aluminum plate #50122-16 (include 50122-30 O-ring for metal holding band). Metal holding band #50122-31 (for holding abrasive papers and polishing cloths). Glass plate #50122-15 (for use with abrasive film). Dust cover
50124-20R Lapping and Polishing Machine Model 920 50124-20L Lapping and Polishing Machine Model 920L each
Model 920L includes: Model 920 Lapping and Polishing Machine, Standard Motorized Yoke Assembly, Right Side (Model 92034L), Drive Motor Assembly, Right Side (Model 92012R)
each
Model 920LR includes: Model 920 Lapping and Polishing Machine, Standard Motorized Yoke Assembly, Left Side, (Model 92034L), Drive Motor Assembly, Left Side (Model 92012L), Standard Motorized Yoke Assembly, Right Side, (Model 92034R), Drive Motor Assembly, Right Side, (Model 92012R)
50124-20LR Lapping and Polishing Machine Model 920LR
Accessories and Spare Parts Cat. No.
Description
50124-50 50124-51 50124-52 50124-53 50124-54 50124-55 50124-56 50122-42 50124-14 50124-15 50122-15 50122-16 50122-17 50122-18 50122-19 50122-25 50122-26 50122-27
Standard yoke assembly, left side, used with Model 92012L Standard Motorized post Assembly, Left Side
Standard yoke assembly, right side, used with Model 92012R Standard drive motor post assembly, right side Yoke sweep mechanism, with motor drive, left side Yoke sweep mechanism, with motor drive, right side Digital RPM meter
Lapping plate flatness measuring kit
Tri-holder specimen mount (for metallographic mounts up to 38mm diameter Quad-holder specimen mount (for metallographic mounts 25-32mm diameter Glass Lapping plate, 8” Aluminum lapping plate, 8” Cast iron lapping plate, 8”
Cast iron lapping plate, concentric grooves, 8” Cast iron lapping plate, spiral grooves, 8”
Cast iron conditioning ring (for use with cast iron lapping plates only) Copper composite lapping plate, 8”
Diamond conditioning ring (for use with copper composite lapping plate only) each
Qty. each each each each each each each each each each each each each each each each each each
Final Finishing Film All films are 8” diameter, and available with either plain back (P/B) or pressure sensitive adhesive (PSA)
See page 15.
RELATED PRODUCTS...
Lapping and Polishing Supplies
Diamond Lapping Film A selective diamond particle resin bonded to a uniform 3-mil polyester film backing. Excellent for polishing samples with differing hardness.
See page 15.
Aluminum Oxide
Abrasive Film Discs Our Aluminum Oxide Abrasive films with a PSA back or a plain back are ready to use in all sample polishing applications.
See page 15. 149
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