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NC and Automatic Surface Grinding Machines

NC surface grinders: LUNA Atlas S NC2 and Palmary PSG AC — servo drives on the vertical and cross axes, with the cycle set from the control.

3D overview: Grinding machines

20 MODELS · 3D
SCROLL — the machine assembles · DRAG — rotate
20 / Models in category

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Selection guide

NC surface grinders: a cycle without a programmer

NC here means a middle ground between hydraulics and full CNC: the longitudinal table stroke stays hydraulic while the vertical and cross feeds are driven by servos to a cycle the operator sets on the control. The machine makes the passes with the right allowance and spark-out by itself — without a programmer or CAM.

LUNA Atlas S 2550 NC2 and the rest of the NC2 range have tables from 200×460 to 610×2200 mm and 1.5–5.5 kW. The Taiwanese Palmary PSG-3060 ACI and the AC series have tables from 450×200 to 1000×400 mm and a 0.0001 mm feed increment; the ACI version has one controlled axis and the ACII two, vertical and cross.

Simpler machines with a hydraulic table are in the surface grinders section, and full CNC with interpolation of all axes is here. How to compare grinding machines is covered on the grinding machines.

NC surface grinders in the catalog

ModelTableControlPowerWheel
LUNA Atlas S 2050 NC2200 × 460 mmNC2: hydraulic X table, Y/Z servo drives1.5 kW200 × 20 × 31.75 mm
LUNA Atlas S 2550 NC2250 × 500 mmNC2: hydraulic X table, Y/Z servo drives2.2 kW200 × 20 × 31.75 mm
Palmary PSG-2045 ACI450 × 200 mmNC, 1 controlled axis1.5 kW180 × 13 × 31.75 mm
LUNA Atlas S 3063 NC2635 × 305 mmNC2: hydraulic X table, Y/Z servo drives5.5 kW350 × 40 × 127 mm
Palmary PSG-2045 ACII450 × 200 mmNC, 2 controlled axes1.5 kW180 × 13 × 31.75 mm
LUNA Atlas S 30100 NC2305 × 1050 mmNC2: hydraulic X table, Y/Z servo drives5.5 kW350 × 40 × 127 mm
Palmary PSG-2550 ACI500 × 250 mmNC, 1 controlled axis1.5 kW180 × 13 × 31.75 mm
LUNA Atlas S 4080 NC2406 × 813 mmNC2: hydraulic X table, Y/Z servo drives5.5 kW350 × 40 × 127 mm
Palmary PSG-2550 ACII500 × 250 mmNC, 2 controlled axes1.5 kW180 × 13 × 31.75 mm
LUNA Atlas S 40100 NC2406 × 1020 mmNC2: hydraulic X table, Y/Z servo drives5.5 kW350 × 40 × 127 mm
Palmary PSG-3060 ACI600 × 300 mmNC, 1 controlled axis3.75 kW355 × 38 × 127 mm
LUNA Atlas S 50100 NC2500 × 1200 mmNC2 / PLC: Y/Z servo drives, hydraulic X table—355 × 50 × 127 mm
Palmary PSG-3060 ACII600 × 300 mmNC, 2 controlled axes3.75 kW355 × 38 × 127 mm
LUNA Atlas S 60220 NC2610 × 2200 mmNC2 / PLC: Y/Z servo drives, hydraulic X table—500 × 75 × 305 mm
Palmary PSG-3080 ACI800 × 300 mmNC, 1 controlled axis3.75 kW355 × 38 × 127 mm
Palmary PSG-3080 ACII800 × 300 mmNC, 2 controlled axes3.75 kW355 × 38 × 127 mm
Palmary PSG-4080 ACI800 × 400 mmNC, 1 controlled axis5.5 kW405 × 50 × 127 mm
Palmary PSG-4080 ACII800 × 400 mmNC, 2 controlled axes5.5 kW405 × 50 × 127 mm
Palmary PSG-40100 ACI1000 × 400 mmNC, 1 controlled axis5.5 kW405 × 50 × 127 mm
Palmary PSG-40100 ACII1000 × 400 mmNC, 2 controlled axes5.5 kW405 × 50 × 127 mm

Questions and answers

ACI or ACII?

On the ACI one axis is controlled — the vertical feed of the wheel. On the ACII the cross axis is added, so the machine indexes the wheel across the part and the whole cycle runs without the operator. For wide parts and batches take the ACII.

How does NC differ from CNC?

On an NC machine the operator sets the cycle parameters on the control: allowance, depth per pass and the number of passes. On CNC the axes work with interpolation to a program, so a profile can be ground, not just a flat face. For ordinary flat work the result is the same — the difference is how much the machine does instead of the operator.

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