Cormak Goliath 660 x 4000YC Universal Manual Lathe

Cormak Goliath 660 x 4000YC Universal Manual Lathe

Machine Type: Manual Universal Lathe

Machine Description

Industrial metal lathe Cormak Goliath 660 x 4000YC - solid cast iron bed construction, equipped with a 12-speed gearbox with a powerful 7.5 kW / 400V induction motor - maximum torque, large spindle passage 105 mm . Recommended for turning hard steels, mechanical turning. It can be used for many tasks, such as turning internal and external surfaces, turning cones, metric, inch threading, drilling and broaching. The Goliath series lathe was created especially for industrial production of large parts. It is used in industrial plants in serial and medium-serial production.

The CORMAK 660 x 4000 (CJ6266YC/4000) universal lathe is a versatile machine that provides exceptional precision in the turning of various materials. It is ideal for internal and external machining, taper turning, polishing, threading (metric, inch, modular and DP), as well as drilling and broaching.

Solid construction

The lathe bed is made of high-quality cast iron, which effectively dampens vibrations, which is crucial for low-speed operation of the machine. Thanks to the hardened and precisely ground bed, the lathe provides exceptional resistance to torsion and vibrations, enabling precise turning even at the lowest rotational speeds.

Advanced Features

• The central feed switching system , including the feed screw and feed shaft , allows for efficient threading, even at low rotational speeds.
• Accelerated longitudinal and cross feeds are easily controlled using the joystick, facilitating precise machining, especially at low speeds.
• Three-axis digital readout (longitudinal, cross and upper slide) with on-screen display allows precise control of every lathe movement, especially during slow-speed operations.
• High-quality bearing system with ball bearings and modern bearing of the main spindle ensure stable and safe operation of the lathe.
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Efficiency and precision

Thanks to the large spindle passage (105 mm) , center spacing (3000 mm) , 3-jaw lathe chuck (315 mm) and a powerful 7.5 kW motor , the CORMAK lathe guarantees high machining efficiency, even at a slow pace. The rapid longitudinal and transverse feed system significantly shortens the machining time, but also allows for precise execution of details at low speeds.

Additional features

• Hardened and ground gears in the spindle gearbox ensure durability and stability of operation for a long time, even at low speed.
• Ergonomic adjustment of the spindle speed and automatic feed allows precise adjustment of machining parameters.
• The thread turning clock allows for accurate counting of threads, which saves time and allows the carriage to return to its original position more quickly.
• The replaceable bed gap allows the machining of larger workpieces, e.g. discs, up to a maximum diameter of 900 mm with the gap removed.

The CORMAK 660 x 4000 lathe is a reliable machine that, thanks to its solid construction, is suitable for precise and demanding machining operations. It is an ideal choice for a wide range of lathe tasks, ensuring high quality and accuracy of machining.

Included Equipment (dependent on version)

3-jaw chuck

4-jaw chuck

Face plate

Steady rest

Follow rest

Digital readout for 3 axes

Spindle reducing sleeve

Dead centre

Change gears

Cooling system

24V halogen lighting

Thread indicator

User manual

EC declaration of conformity

Technical Specification

Swing over bed: ɸ660 mm

Swing over cross slide: ɸ420 mm

Swing over gap: ɸ870 mm

Turning length over gap: 240 mm

Maximum length of workpiece: 4000 mm

Maximum turning length: 3950 mm

Spindle bore: ɸ105 mm

Spindle mount: ɸ113 mm

Spindle taper: Cam-lock D1-8

Spindle speed: 35 - 1600 rpm

Speed selections: 12

Longitudinal feed range: 0.063 - 2.52 mm/rev

Transverse feed range: 0.027 - 1.07 mm/rev

Metric thread: 0.45 - 120 mm

Imperial thread: 7/16 - 80 TPI

Modular thread: 0.25 - 60MP

D.P. thread: 7/8 - 160 DP

Rapid longitudinal feed: 4.5 m/min

Rapid transverse feed: 1.9 m/min

Max tool section: 25 x 25 mm

Tailstock spindle diameter: 75 mm

Tailstock quill travel: 150 mm

Tailstock quill taper: MT5

Motor power and speed: 7.5 kW

Dimensions (LxWxH): 5500 x 1100 x 1450 mm

Weight: 5200 kg