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     Wiap DM C horizontal bed lathe







Tool turret 4-fold, 8-fold, 12-fold
driven tools


C axis
Y axis
Tool changer
A power clamping device comprising forage,
Hydraulic unit and clamping cylinder
Single or double slide solution
Lining, faceplate, special clamping device,
Bezel (fixed or co-rotating)


Technical specifications: DM2 DM3 DM4 DM5 DM6
Guide width mm 50 70 90 120 200/250
Guide high mm 30 40 50 80 120
Max. Bed length mm 4'000 7'000 11'000 14'000 open
Max. Tip width mm 2'500 5'000 8'000 11'000 open
Max. Swinging-ø mm 600 800 2000 2'500 open
Max. Swinging diameter mm 90 160 485 580 open
Drive power up to kW 20 30 75 150 250*
Workpiece weight or tips T 3 10 20 40 170*
Required supports Stk. 1 1 2 2 2
Flying reach 500 mm kg 400 1'000 4'100 20'000 40'000
Flying reach 1000 mm kg Not applicable 550 2'400 11'100 23'500
* Heavy duty construction

Photo: Machine at Rollstar Schweiz Nr. 3 of the type swing diameter 1600 mm top range 2 meters built in Switzerland.












Photo: Machining with rollstar, machine turns 6 er tolerances, roughing and true rotation, workpiece temperature of 10 degrees Difference can give a reject, if one does not pay attention also with the large diameter.   

Photo: Caroline Widmer at the fodder assembly after a repair


Photo: Assembly of the machine No. 4. Coarse Wiap Type: DM4C Switzerland Swinging diameter 2000 mm x 3000 mm Tip width C Turning machine built in Switzerland.

Example of double X carriage. Single X carriage narrow.

Example: 2 machines in use for 20 years. Under hard turning conditions, the wear of the guide is less than 0.015 mm. Often used in 24 hours shift operation. Production 7 days a week, 365 days. Also thanks to the air support of the carriages and flat guides, which does not interfere with the load of the gripper during the large transverse forces during thread cutting. Last surveys: May 2014. 80% special steels with high strength are


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