Reference Number: 137694

NEW SUPERTEC UNIVERSAL CYLINDRICAL GRINDER
 8" x 20" MODEL G20P-50CII+5C w/Automatic Infeed 
 NOTE:  PHOTO SHOWS G25P-50CII+5C MODEL
 
 FEATURES:
 - Sturdy rigid-designed workhead offers four selectable speeds from 
 150 to 483 rpm and swivels ±45° for various grinding operations.
 - The design of the tailstock is both rigid and robust.  Housed in 
 a cast body, the hardened nitralloy steel sleeve is designed to carry 
 a MT3 center.
 - Cartridge type wheel spindle is equipped with four super precision 
 angular contact class 7 (ABEC) bearings ensure high accuracy.
 - One V and one flat hand-scraped guideways are Turcite coated and 
 incorporated with an automatic lubrication system and micro-stepping 
 motor. Smooth movement of the wheelhead delivers longer way life with 
 superior positioning accuracy and repeatability.  
 - Universal table with variable speeds can swivel +3º/-5º (G20P) and 
 +7º/-9º (G25P) for cylindricity corrections and taper grinding 
 applications.
 - Slideways, leadscrews are continuously lubricated by an auto-lube 
 system to ensure long service life and maintain maximum accuracy.
 - Optional internal grinding attachment swings down into working 
 position easily and quickly. It can grind workpieces with bores 
 ranging from 3/5"-2 ¾" and depth up to 2 ¾".
 - Optional hydraulic tailstock with foot pedal is available for 
 easy loading and unloading of parts.
 - Mitsubishi PLC control uses a menu-driven LCD touch screen is 
 easy to learn and easy to set.  Simply fill in the blanks to set 
 total grinding amount, rough increment, fine increment, sparkout 
 passes, feeding direction, parking position, and retracting clearance, 
 and press cycle start to complete automatic grinding cycle. (CII 
 models only) 
 
 SPECIFICATIONS:
 GENERAL CAPACITY
 Distance Between Centers:              20"    
 Swing Over Table:                           8"       
 Max. Grinding Diameter:                   8"
 Max. Load Held Between Centers:   176 lbs
        
 WHEELHEAD
 Swivelling Angle (R&L):                Fixed
 Infeed/Handfeed Travel:                6-1/3"
 Hydraulic Rapid Traverse:              N/A
 Automatic Infeed Increment:     0.0001"~4"
 Infeed of Handwheel    
   Per Graduation:                 0.0001"
   Per Revolution:                  0.01"    
 
 GRINDING WHEEL
 Wheel Diameter
 (Dia. x Width x Bore):          14"x1~2"x 5"
 Wheel Speed (50/60Hz):           1960 rpm
     
 TABLE
 Swivelling Angle (R&L):            +7º/-7º 
 Traverse Speed:                          N/A
 Handwheel Per Revolution:          0.35"    
 
 WORKHEAD
 Swivelling Angle (R&L):       +30º /-90º
 Center Taper:                           MT3  
 Spindle Speed:              150/264/356/480 rpm
 Spindle Type:                        Live and Dead
 
 TAILSTOCK
 Center Taper:                 MT3
 Quill Travel:                     1"
 
 INTERNAL GRINDING SPINDLE
 Spindle speed:                  14,000 (opt:25000)
 Max. Grinding Bore:              0.95"~2.76"
 Max. Grinding Length:       2.76"
 Max. Chucking Length:      10.75"
 Max. Chucking Diameter:     4.33"
 
 MOTORS
 Wheel Spindle Motor:         3 HP 
 Workhead Motor:              .25 HP 
 Coolant Motor:              .125 HP
 Hydraulic Pump:                 N/A
 Internal Grinding Motor:     .5 HP 
           
 MACHINE
 Net weight:                3600 lbs 
 Gross weight:             4770 lbs
 Packing dimension:   82"x47"x78" (L x W x H)    
 
 STANDARD ACCESSORIES:
  - Grinding wheel w/flange       
  - Carbide tip center
  - Balancing arbor          
  - Leveling screws w/blocks
  - Coolant System           
  - Wheel extractor       
  - Auto lubrication system                  
  - 5C level type collet closer          
  -Tool box with adjusting tools             
  - Operation manual with parts list       
  - Dressing attachment (fixed at tailstock)
 
 OPTIONS, TOOLING AND ACCESSORIES (call for pricing):
 BACK PLATE & SCROLL CHUCKS    
  - 3-Jaw chuck (4")  
  - 4-Jaw chuck (4")    
  - 5C Back plate (4")        
  - 3-Jaw chuck (5")       
  - 4-Jaw chuck (5")    
  - 5C Back plate (5")       
                  
 COLLETS & COLLET ATTACHMENTES:
  - Royal manual lever type 5C collet closer  
  - Royal air-operated 5C collet closer and air controller  
  - Lyndex 5C collets (available in all popular sizes)
 
 OPTIONAL COOLANT SYSTEMS (in place of the standard system)
  - Coolant system w/magnetic sep. & paper filter (20L/min, 80L)  
  - Coolant system w/magnetic separator (20L/min, 46L)
  - Coolant system w/paper filter (20L/min, 80L)
                  
 DRESSING & GRINDING ATTACHMENTS    
  - Overhead parallel dresser w/auto compensation
  - Radius dressing attachment            
  - Angle dressing attachment      
 
 SONY DIGITAL READOUT SYSTEM
  - Two axis (X & Z axis) digital readout 
  - One axis (wheelhead) digital readout  
     
 STEADY RESTS       
  - 2-Point steady rest (various sizes available)
  - 3-Point steady rest (various sizes available)
              
 OTHER ACCESSORIES    
  - Internal grinding attachments (12K, 14K, 18K and 25K available) 
  - Chuck for ID attachment (Arbor type, ER-11)    
  - Ballscrew & servomotor direct drive wheelhead
  - Balancing stand (straight type)                                       
  - Spare Grinding wheel (14"x1 1/2"x5")   
  - Spare wheel flange 
  - Table dial gauge attachment
  - Hydraulic tailstock  
  - Variable spindle speeds for wheelhead           
  - Variable spindle speeds for I.D. attachment 
  - Variable spindle speeds for workhead 
  - Variable table speeds