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The Gerber Coburn SL2 Express with cut-to-oval capabilities features the same award-winning precision turning technology, long-life polycrystalline diamond cutter, automatic cribbing and safety beveling, cool lathe processing and built-in diagnostic programs as the original version, but now produces at a faster rate.  This second generation SL2 uses advanced tool path software to optimize the rates and depths of the machine cuts.  The machines new generating parameters decrease surfacing time on CR39 and high index lenses by more than 33%. The bottom line result is a reduced labor cost per lens and increased lab capacity.
The SL2 Express surfaces lenses using a long-life polycrystalline cutter. No tool change or calibration is necessary when changing lens materials or when processing matching Gerber Coburn plastic lap tools, thus reducing labor requirements. And the use of a single-point cutter produces a lens surface that allows consistent one-step fining.
By employing automatic cribbing and safety beveling, manual adjustments are eliminated. Cribbed lenses reduce the time needed for fining, polishing and edging, as well as enabling the production of thinner lenses.
The SL2 Express has a wide curve range to handle almost every ophthalmic prescription. The cool lathe technology produces lenses with no elliptical error and eliminates the possibility of heat-induced aberrations. The computer control of the SL2 Express allows for precise positioning of optical centers and unparalleled thickness control.
XRL Extended Range Lap tools fit directly into the SL2 Express, eliminating the need for a lap adapter. Composed of a tough, durable plastic, the XRL tool provides long-lasing curve accuracy and cuts to the machine's full curve range.
The SL2 Express can link to Gerber Coburn’s Innovations™ Software or other lens layout software for automatic transfer of surfacing data and handling of job storage. Job numbers can be entered via a bar code reader or using the alphanumeric keyboard, reducing the operator’s input. User-friendly software guides operators through the surfacing process, enabling operators with little knowledge of optics to consistently produce accurate results.
The SL2Express is easy to operate, training is often accomplished in less than two hours. Built-in diagnostic programs assure trouble-free operation and a modem connection to Gerber Coburn field service can provide on-line troubleshooting if problems do arise.

Specifications
Power 220 V  50/60 HZ single phase, 10 Amp
Dimensions 38" w x 28" d x 68" h
(970 mm x 710 mm x 1730 mm)
Weight 1,000 lbs/ 454 kg
Dust Collection Minimum velocity required for adequate collection of dust and polycarbonate swarf; 4,000 feet per minute, when measured at swarf hood
Curve Range
Base Curve +7 through plano to -20 diopters in.01 diopter increments  
Cross Curve Cross curve: 10 diopters  in  .01 diopter increments
Prism Prism: 10 diopters in .01
diopter increments
System Components Operation and Installation manual
Spare polycrystalline diamond cutting tool
Precision lap tool guage
3KVA voltage regulating transformer
Wrench set
Grease Gun
System Compatibility Gerber Coburn Systems:
Innovations Laboratory Systems
Eclipse Surface Blocker™
Acuity ™ Plus Finer Polisher
Standard lens layout computers
Options Bar code reader
Dust collection system
Lap measurement system
Host computer cable, 100ft.
Order Numbers # 4462504-Standard
# 4462505-AcuBlock/Loh

  
Single point precision turning technology
Cut-to-oval cribbing
Handles wide curve range
High production capacity
  
Integral keyboard and display for data
entry and job verification
  
Computation of tool path for lens and
lap machining
  
Communication with Gerber Coburn
Innovations or lens layout computer for
retrieval of surfacing data 
Lap/lens sensor to prevent processing
of laps while in the lens mode, and vice versa 
Data Entry-Input job number from
keyboard or  bar code reader
 
Safety Bevel-automatic safety bevel
selection
 
Lens Cribbing - automatic cribbing
capability for  increased surfacing
productivity. Cut-to-oval allows oval cribbing for a closer to frame fit.
 
Tools-Gerber Coburn  plastic lap tools