Swing dia. without using of tilting B-axes: 300 mm
Max. power of multi-roller without using of tilting B-axes: 50 kN
Max. workpiece weight: 1 000 kg
Power S1: 11 kW
TECHNICAL DATA | Unit | Roller 2800 CNC |
---|---|---|
Working range | ||
Geometric and operating accuracy | ISO 1708 | |
Swing dia. without using of tilting B-axes | mm | 300 |
Swing dia. with using of tilting B-axes to ± 30° | mm | 280 |
Swing dia. with using of tilting B-axes to ± 35° | mm | 250 |
Tailstock sleeve travel of multi-roller headstock | mm | 112 |
Range of multi-roller power | kN | 1-50 |
Max. power of multi-roller with using of tilting B-axes (B = ± 35°) | kN | 20 |
Max. power of multi-roller without using of tilting B-axes (B = 0°) | kN | 50 |
Distance between centres | mm | 2876 |
Max. workpiece weight | kg | 1000 |
Operating spindle | ||
Nose of spindle (DIN 55027, 55029) | B11/C11 | |
Spindle bore | mm | 106 |
Spindle taper – metric | mm | 112 |
Control system | ||
SIEMENS SINUMERIK | 840D | |
Main drive | ||
Drive motor output (S1) | kW | 11 |
Max. spindle torque (S1) | Nm | 297,5 |
Spindle speed range | min-1 | 0-400 |
Axis B | ||
Ratio of worm-gear unit | 1:40 | |
Ratio of spur gearing of tilting mechanism | 1:12 | |
Tilting range | ± 35 | |
Rapid traverse | min-1 | 0-400 |
Axis Z | ||
Ball screw – dia. / increase | mm | 50/10 |
Travel | mm | 2876 |
Rapid traverse | m/min | 10 |
Max. feed force | kN | 20 |
Repeatability of positioning | mm | 0,015 |
Tailstock | ||
Tailstock sleeve dia. | mm | 115 |
Tailstock sleeve travel | mm | 160 |
Sleeve taper | MORSE | 6 |
Hydraulic aggregate | ||
Hydraulic oil volume | l | 10 |
Operating pressure of pump | bar | 110 |
Nominal capacity of pump | l/min | 11 |
Nominal motor output | kW | 3 |
Lubrication of multi-roller tools | ||
Nominal pressure of pump | bar | 3 |
Nominal capacity of pump | l/min | 0,9 |
Tank volume | l | 32 |
Pump motor rating | kW | 0,05 |
The advantages of a rolled surface are that it achieves a smooth surface of the part by cold forming the surface layer. The quality of machining replaces the grinding technology, but without the accuracy of the dimensions of the machined surface as in grinding. Rolling is suitable as a finishing operation for strengthening surfaces of non-tolerated dimensions or as a technology for strengthening the surface layer before finishing grinding the surfaces to the tolerated dimension.
Rolling is used mainly for reasons of material savings of up to 8%, higher resistance to fatigue fracture, ie higher fatigue strength in cyclic stress of the part, increased hardness and very smooth surface, provides higher resistance to abrasion and corrosion, another significant advantage for environment is the possibility to replace molybdenum spraying by surface rolling.
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