Clausing-Colchester Geared-Head Lathes

CLAUSING/Colchester Gap Bed Latheswith easy-to-remove bed blocksequip you to handle many large diameter jobs, as well as regular between-centers work, for a nominal investment. To provide maximum tool rigidity, the cross slide of the gap bed models is at the extreme left of the saddle. The handle is at the right side of the apron for greater efficiency.

A wide variety of productivity accessories is available; please refer to the CLAUSING/Colchester Catalog.

Equipment furnished: Center bush, Two 3MT Centers, Inch Threading Dial, Accuracy Chart, Parts and Instruction Manuals, Splash Guard, Coolant System, Set of Wrenches and keys, 230/460 V., 3-phase, 60 Hz motor. (Specify voltage.)

For optimum precision, the cross slide runs along a dovetail guide, and both saddle and cross slide are provided with adjustable gib strips. For heavy cutting, either the saddle or cross slide can be locked, and anti-backlash adjustment is provided on the cross slide nut. Bed wipers and an apron mounted one-shot lubrication pump are provided as standard. The cast iron apron is totally enclosed and splash bath lubricated. A double halfnut assembly is provided for maximum life and screwcutting accuracy. The drop-out worm feed control is mechanically interlocked to prevent simultaneous half-nut and spline shaft engagement.

The sturdy bed is manufactured from close-grained cast iron, which is induction hardened and ground. The combined vee and flat configuration gives optimum kinematic guiding of the slideways. . allowing both precise, accurate machining, and vibration-free cutting. The control base is rigidly constructed, and incorporates a readily accessible coolant tank mounted at the rear of the machine.

A broad range of Feed and Thread selections is available by using three selector levers and an 8-position rotary dial. Feed selections automatically disengage the leadscrew drive and independent torque-limiting clutches give accidental overload protection on both the leadscrew and spline shaft. All gears are hardened, and shafts turn on anti-friction bearings

The rugged headstock is designed to provide maximum power for roughing cuts, and smooth, quiet power for fine finishing. The 12 all-geared speeds, from 40 to 2500 rpm, handle a wide variety of work at top efficiency. All headstock gears are hardened and ground, and headstock shafts are splined and turn on anti-friction bearings. Increased mass and rigidity of the headstock mean much less transmission noise, and less deflection than previous models. Spindle bearings, gears, shafts, and headstock clutches are lubricated by a pumped bath of oil.