Cylindrical Grinder, Cylindrical Grinders

CYLINDRICAL GRINDER
CYLINDRICAL GRINDER
G20P/G25P Series

 

 

  1. Sturdy rigid-designed workhead offers four variable speeds from 50 to 500 rpm and swivels ±45°for various grinding operations.
  2. 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.
  3. Cartridge type wheel spindle is equipped with four super precision angular contact class 7 (ABEC) bearings ensure high accuracy.
  4. 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.
  5. Universal table with variable speeds can be swiveled up to 7º in either direction for cylindricity corrections and taper grinding applications.
  6. Slideways, leadscrews are continuously lubricated by an auto-lube system to ensure long service life and maintain maximum accuracy.
  7. Optional internal grinding attachment swings down into working position easily and quickly. It can grind workpieces with bores ranging from dia.24-70mm and depth up to 70mm.
  8. Optional hydraulic tailstock with foot pedal is available for easy loading and unloading of parts.
  9. 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. (NC models only)
1.I.D SPINDLE  10.4-JAW SCROLL CHUCK 19.SPARE WHEEL FLANGE
2.BALANCING STAND 11.FIXED BACK PLATE 20.COOLANT SYSTEM W/MAG. SEP. &PAPER FILTER
3.MANUAL LEAVER 5C COLSER 12.ADJUSTABLE BACK PLATE 21.COOLANT SYSTEM W/PAPER   FILTER
4.5C COLLETS 13.2-POINT STEADY REST  
5.PARALLEL FRESSING ATTACHMENT (MANUAL) 14.3-POINT STEADY REST  
6.PARALLEL FRESSING ATTACHMENT (MANUAL) 15.DIGITAL READOUT  
7.HYDRAULIC PARALLEL DRESSING ATTACHMENT 16.RADIUS DRESSING DEVICE  
8.3-JAW SCROLL CHUCK 17.ANGLE FRESSINF DEVICE  
9.4-JAW  CHUCK 18.SPARE GRINDING WHEEL  
 
  G20P-50M/NC G25P-50H/NC
General capacity Distance netween Centers 500(20") 500(20")
Swing over Table Ø220(Ø8.8") Ø260(Ø10.2")
Max. Grinding Diameter Ø200(Ø8") Ø250(Ø10")
Max. Load Held between Centers 80kgs(176lbs)
Grinding Wheel Wheel Diameter (dia. x Width x Bore) Ø355x38xØ127
(Ø14"x1.5"xØ5")
Ø405x50xØ127
(Ø16"x2"xØ5")
Wheel Speed 1620/1960 1800
Wheelhead Swivelling Angle(R & L) Fixed ±30°
Infeed Travel 160(6.3) 135(5.3")
Handfeed Travel 160(6.3) 90(3.5")
Top Slide Travel 180(7")
Automatic Rapid Travel 45(1-3/4")
Auto Increment Infeed (NC model) Ø0.001~Ø0.999
(Ø0.001"~Ø0.0999")
Handwheel per Graduation Ø0.005(Ø0.0002") Ø0.004(Ø0.0002")
Handwheel per Revolution Ø2(0.1")
Workhead Swivelling Angle(R & L) ±45°
Center Taper MT 3 (opt. 5c)
Spindle Speed 150/264/156/480 rpm
Tailstock Center Taper MT 3 
Quill Travel 25(1")
Table Swivelling Angle(R & L) ±8°
Traverse Speed 80/140/230
(3"/5.5"/9")
30~7000mm/min
(1-1/5~275in/min)
Handwheel per Revolution 9(0.35") 10(4")
Internal Grinding Spindle Speed           14000 rpm
    or 25000rpm
18000rpm
or 25000rpm
Max. Grinding Bore Ø24~70
(Ø0.95"~2.76")
Ø30~100(Ø1.18"~3.94")
or Ø20~50(Ø0.79"~1.97")
Max. Grindind Length 70(28") 110(4.3") or 55(2.2")
Max. Chucking Length 275(10.8") 315(12.4")
Max. Chucking Diameter Ø110(Ø4") Ø150(Ø6")
Motor Wheel Spindle Motor 3HP(4P) 5HP(4P)
Workhead Motor 1/2HP(4P)
Hydraulic Pump 1/8HP(4P)
Coolant Pump - 2HP(4P)
Internal Grinding Motor 1/2HP(2P) 2HP(4P)
Machine Net Weight (approx) 1850kgs(4070lbs) 2800kgs(6160lbs)
Gross Weight (approx) 2250kgs(4950lbs) 3200kgs(7040lbs)
Packing Dimension (L x W x H) 2220x1370x1880
(87"x54"x74")
2280x2280x1940
(90"x90"x76")
Remark:We reserve the right to modify the specification relating to any of the above machines wirhout  
               notice.