CK43 series CNC lathe of crank connecting neck

Model CK4363 mm
Max. swing Φ670 mm
Max. machining length of crank 800 mm
Max. turning dia. Φ450 mm
Dia. of jig Φ320 mm
Spindle nose A2-8 (GB5900.1)
Spindle speed 50--1200 r/min
Power of main motor (cont/30 min) 22/30 kW
X/Z-axis travel 260/800 mm
X/Z-axis rapid traverse 12/16 m/min
Tool disk dia. × width Φ650×16 mm

CK43 series lathe is designed for automotive industry to machine crank connecting necks. Features: high accuracy, high flexibility and high efficiency. Workpieces are semifinished or finished through eccentric jigs, which are driven by the right and the left headstocks.

This lathe consists of bed, left headstock, right headstock, left jig, right jig, slide, turret (with a 12-station indexing disk), NC control system, electric system, cooling system, lubrication system and guarding. The bed and base is made from high grade cast iron. It is horizontal and rigid. Bed ways are rigid wide rectangular hardened ways. The saddle and the slide are made from high grade cast iron. Their turcite guideways have minimum dynamic/static friction force. Germany FAG bearings are used on spindle. They are large-diameter precision angular contact ball bearings and double-row cylindrical roller bearings with excellent rigidity. Pretensioned nuts and Japanese NSK angular contact bearings are used in X and Z axes. So screws’ rigidity, resistance to heat distortion and feeding precision is increased greatly. The Italian DM 12-station power turret on the lathe changes tools precisely and quickly with high rigidity.