If you are serious about grinding accuracy and efficiency, the centerless grinders from PALMARY will meet your stringent challenges. The NC-controlled model is quality constructed throughout for delivering the operational performance that you expect.
The machine structure is manufactured from high-quality Meehanite cast iron, heat treated and stress relieved before machining, to make sure the high rigidity.
Precision spindlesThe GW spindle and the RW spindle are precision machined and made from alley steel, processed with normalization, aging, and heat treatment, then proceed to sub-zero treatment, finally finished after precision machining and grinding.
Feed screwThe feed screw is manufactured from alloy steel. It's also normailzed, high frequency harden and precision ground in order to have high feeding accuracy and excellent wear resistance.
Pressure switchWhen starting the GW and RW spindle, this pressure switch allows starting only when oil enters into bearings thereby providing safety protection for the spindle bearings.
Lubrication systemThe automatic lubricator provides lubrication to the GW spindle. Also all slideways are lubricated by a centerlized lubrication system, ensuring proper lubrication and feeding accuracy.
|Standard grinding range (dia.)||Ø1~80 mm|
|Capacity increases with special arrangement||Ø40~150 mm|
|Grinding wheel size (O.D. x width x I.D.)||Ø510 x 205 x Ø304.8 mm|
|Grinding wheel speed||1200 r.p.m.|
|Grinding wheel motor||20 HP x 4P|
|Regulating wheel size (O.D. x width x I.D.)||Ø305 x 205 x Ø127 mm|
|Regulating wheel speed 10 ~ 300 r.p.m. (variable)||10~300 r.p.m. (variable)|
|Regulating wheel motor||5 kW servo motor|
|Regulating wheel tilt angle||+5° ~ -3°|
|Regulating wheel swivel angle||±5°|
|Upper slide feed graduation||3.5 mm/rev. ; 0.05 mm/graduation|
|Upper slide micro-feed graduation||0.1 mm/rev. ; 0.001 mm/graduation|
|Lower slide feed graduation||9 mm/rev. ; 0.05 mm/graduation|
|Trimming device graduation||2mm/rev. ; 0.01 mm/graduation|
|Hydraulic pump motor||1 HP x 4P|
|Coolant motor||1/4 HP x 2P|
|L x W x H||2350 x 1900 x 1530 mm|
|New weight||3600 kg|