GV-1000/ATC - High Rigidity Vertical Turning Center

High Performance Vertical Turning Center

With 30 Years of experience in the manufacture of lathes. Yamaseiki is pleased to introduce our GV-1000 CNC Vertical Turning Center, which combined ultra high power performance, super rigid construction and high speed machining. The GV-1000 provides turning and milling capacity for the dynamic demands of todays market and onward into the future.

With a maximum turning diameter of 39.37" ( 1,000 mm ) by 29.92" ( 760 mm ) long, the GV-1000 is ideal for the machining of large parts and heavy cutting conditions. The ‘C’ Axis and a live tooling turret enable “ One Hit Manufacturing” of suitable components.

Full surrounded guarding for a clean environment.

The use of slide-way covers protect all the bed-ways.

Environmentally friendly lube system provides the lubrication for the slide-ways and ball-screws.

Machine Design is based on Ergonomics, all so known as Human Factor Engineering is the science of refining the design of products to optimise machine for human use. This principle has been fully integrated into the design, from the ease of operation to the compact floor space, which gives a floor space saving of up to 50% over a conventional turning center design.

Designed for the easy loading of parts, the spindle nose to floor = 42.52" ( 1,080 mm ) & the spindle center line to the operator door = 26.42" ( 671 mm )

The compact body design and working area make the GV-1000 Foot Print one of the smallest in its class.

Easy maintenance independent coolant system and chip conveyor.

The spindle gear box lubrication integrity is monitored by flow.

High Rigidy Structure

The base and column construction has been made by computer generated design which has increased the stability by 30% over traditional design.

Meehanite grade castings, rib and reinforced provide excellent stability, good thermal expansion and performance for the vertical column.

FANUC alpha i series AC servo motors are fitted to all axes. The alpha Pi intelligent servo motor with its compact size and super high resolution αi series pulsecoder ( standard 1,000,000/rev ) are the perfect partner in this machine tool.

X & Z axes motors are fitted with absolute encoders thus eliminating the need for reference returning the axis before machining.

Japan made linear rails ( roller type ) provide excellent stability in operation.

The Z axis is fitted with an independent Japan made brake system.

C3 class ball screws ( with a pitch accuracy of 12.7µ / 300 mm ) are fitted with pre-load to X and Z axes.

Contact surfaces of all slides, headstock, turret, tailstock, and ball screw bearing housings with the machine bed are hand scraped to provide maximum assembly precision, structural rigidity, and load distribution.

Ultimate Turning Power

P4 grade ( Class 7 ) super-high precision bearings are directly assembled for maximum level of support and precision. Bearing configuration is designed for super heavy-duty cutting with ultra-smooth performance and long term durability with a higher level of accuracy.

The 2-step gear box produces 40 HP ( 30 kW ) of output.

With over 3,138 Nm of torque available on the low speed of the 3-speed gear head, turning tough material with big diameter is now a simple task.

Generating twice the torque output of standard motors, the A/C, constant output, wide-range FANUC αP60 high-torque i series motor is rated at 40 HP ( 30 kW ). This doublewound motor is designed to reach full output at 1/2 the RPM of standard motors, providing the ability to take heavier cuts in the lower RPM ranges.

Standard spindle orientation feature allows the spindle to stop at desired programmed position. Useful in broaching and manual part loading applications where a fixed spindle position is required.

Advanced Turret Technology

The index position of the turret is by the large 12.60" ( 320 mm ) Diameter Curvic Coupling.

Available with straight and 90º Live Tooling Tool Holder.

Live tooling drive by FANUC Servo Motor.

GV-1000 Cf-axis with FANUC αi Servo Motor with FANUC 1.0 million pulse super high resolution αi series pulsecoder provides ultimate performance for the C axis and with worm-gear drive an accuracy of 0.001º can be attained.

Working with the live tooling turret, the Cf-axis and disk brake system enables the machine to perform multiple tasks, such as drilling, tapping, and milling operations, including cylindrical and polar coordinate interpolations, resembling a 4th-axis rotary table on a machining center.

With the FANUC servo motor generating an ultra high resolution of 1.0 million pulses per spindle rotation and 833 Nm ( 614 ft-lb ) of spindle torque ( cont. ), machined surface finishes are much superior than Cs-axis ( driven by spindle motor ) equipped machines. Plus, dynamic accuracy is within ± 0.02° even under heavy cutting loads.