Roll Grinders CNC Proma Types

Proma CNC roll grinders and cylindrical grinders are the leaders in the field.
Once the domain of the European manufacturers, Proma Grinders offer a much lower cost product while still producing machinery of equal quality.

Click on the Machine Type to link to the product detail.

Standard Specification


S Type 

M Type

L Type

H Type

ITEM UNIT S40 M60 L85 L100 H130 H160 H200
Working capacity Max. swing over table mm Ø400 Ø600 Ø850 Ø1000 Ø1300 Ø1600 Ø2000
Max. distance between c.c. M 1.5M,2M,3M,4M 3M,4M,5M,6M 3M,4M 5M,6M 4M,5M,6M,7M,8M 5M,6M,7M,8M,10M,12M 6M,7M,8M,10M,12M
Max. weight of workpiece kg 1,500 4,000 6,000 15,000 30,000 40,000
Max. O.D. ground mm Ø400 Ø600 Ø850 Ø1000 Ø1300 Ø1600 Ø2000
Rang of grinding dia. mm Ø5~Ø400 Ø15~Ø600 Ø20~Ø850 Ø20~Ø1000 Ø80~Ø1300 Ø180~Ø1600 Ø250~Ø2000
Max. dia of crown mm By program
Wheelhead & Carriage(X axis) Wheel size(O. D. × Width × Bore) mm Ø500 × Ø152.4 × 50 Ø910 × Ø304.8 × 75 Ø910 × Ø304.8 × 80
Type of lubricating system Hydrostatic & dynamic system
Rotating speed of wheel R.P.M. 300~1600 300~1000
Max. cross feed rate mm/min 1000mm/min 2000mm/min 3000mm/min
Cross feed per pulse mm/p 0.001mm
Table(Z axis) Travel of table or head (Z axis) mm Center Distance + 8″
Travel speed of table mm/min 25~3000mm/min 25~6000mm/min
Type of lubricating systekm Hydrostatic & dynamic system
S40 M60 L85 L100 H130 H160 H200
Support Roll neck diameter range mm 90~400(350~600 option) 90~400(350~700 option)
Workhead&Tailstock Rotation speed of work head R.P.M. 10~100 8~80 6~60 6~50 3~30
Size of center MT#5 MT#6 PT#100
Moving speed of tailstock mm/min Manual 2000
Stroke of quill mm 50mm 80mm 200mm
S40 M60 L85 L100 H130 H160 H200
Power rating Grind wheel motor HP 15HP 20HP 30HP 50HP(40HP × 6P) 75HP(60HP × 6P)
Work head motor HP 5HP(3HP × 6P) 7.5HP(5HP × 6P) 10HP(7.5HP × 6P) 40HP(30HP × 6P) 50HP(40HP × 6P) 50HP(40HP × 6P)
Table traverse motor(Z axis) HP 12NM 22NM 30NM 22NM 30NM 30NM
Tailstock move motor HP 1HPX6P
Cross feed motor(X axis) HP 8NM 12NM
Lubricating system HP 2HP
Coolant system L 280Liter 360Liter, 420Liter 420Liter 2000Liter × 2HP