VMC-137/VMC-147/VMC-168/168C

AGMA hardened-way machines are designed for rigidity and heavy-duty cutting. The machine structures are exclusively made to absorb and dampen cutting-induced vibrations; yet the machine's agility is better than most linear-way type machines on the market. In order to support our customers' needs, AGMA has built a support network specifically in special material cutting applications. This allows us to offer our clientele the best solution to their applications. Customer satisfaction is always AGMA's first priority.

High-Rigidity Structure
All three axes have a hardened box-way design. In addition, the spindle headstock, column, saddle, base, and table are all made of high-quality Meehanite cast iron.


High-Stiffness Spindle Design

The cartridge-type spindle enables it to reach 8,000, or 10,000 RPM using a belt drive assembly. Bearings at spindle nose end are well supported by a shaft sleeve and casting structure. The optimized bearing arrangement along with rigid spindle headstock reduces cutting-induced vibrations, virtually guaranteeing a better work piece surface finish.


Design of High Horse Power Spindle for Heavy-Duty Cutting

The gear-driven cartridge spindle is capable of reaching speeds of 6,000 RPM. There is a dramatic increase in spindle rigidity due to increased spindle bearing support. This along with a high horsepower spindle motor dramatically enhances the machine's cutting performance. In addition, each gear-driven spindle has a spindle oil cooler used to lower bearing temperature and prolong spindle life.

X-Axis Chip Auger

The chip auger design provides optimal chip disposal and maximizes table cleanness.

Three Chip Auger Design

Instead of using a costly chip conveyor, the special three chip auger system efficiently removes metal chips which produced during machining.

Belt-Driven Spindle

The spindle headstock has increased rigidity due to the wide stance design of the z-axis ways and the long surface contact between the headstock and way bars.

Gear-Driven Spindle Transmission

The two-speed gear transmission allows full power utilization. All gears are made of Chrome Molybdenum alloy steel, heat treated, and precisely ground to ensure the spindle runs quietly and smoothly. Furthermore, the design of the floating tool release mechanism minimizes any pressure exerted on the spindle bearings.

Stiff Ballscrew Design for Greater Axial Support

All three axes use ISO Class C3 precision ground preloaded ballscrews with pre-tensioned supports on both ends to minimize backlash and compensate the thermal induced error.

Massive Column Design

Four over-sized ways of the machine base combined with the large column helps make the structure a very rigid unit. The column is also heavily ribbed with honeycomb shape ribs to minimize any twisting caused during machining. When in operation, maximum contact surface between the spindle headstock and z-axis ways helps counteract heavy loads applied to the spindle structure.

Excellent Machine Base Design

The machine base of the VMC-168 uses a unique enclosed circular structure.This unique design allows the base to remain free of deformation that may occur due to the heat generated during machining. This unique design also allows the machine to remain stable after extensive usage.

Pressurized Oil Distributor
Lubricating oil is evenly distributed to the sliding surfaces of the machine by using Showa oil distributors along with hard-plumbed, low maintenance oil lines.

Hinged-Belt Chip Conveyor (Option)
This allows for rapid and efficient chip removal during machining in order to maintain a clean machine.

Oil Circulating Cooling System for Spindle
A high efficiency spindle cooling system dissipates running induced heat generation in order to maintain spindle accuracy and prolong spindle life.

Coolant Thru Spindle (C.T.S.)(Option)
Coolant through the spindle with pressure of 20-bar (280-psi) effectively reduces tool wear because of heat and the slow evacuation of metal chips. CTS with higher pressure is also available.

Calibration with Laser Interferometer was Performed and Certified by PMC
All of our machines are calibrated according to the "VDI 3441 3∂" standard. Calibration is performed for full travel length for each axis. Each measurement is taken six times to ensure the most consistent and accurate readings.

32 Tools Magazine (Option)
This unit offers larger tool capacity help to increase machining efficiency. The tool magazine is stored away from the working area to reduce any interference when the machine is in operation.

24 Tools Magazine
A rapid arm-type tool changer is driven with a precision cam, maintaining toolchanging accuracy of 0.01mm, which in turn will help maintain long-term spindle clamping accuracy.

Automatic Lubrication System
All AGMA machines use a pressurized central lubricating system. The PLC controlled system allows all three axes to be lubricated evenly to maintain accuracy and prolong machine life.

Ball-Bar Testing
Each machine goes through telescoping ball-bar tests to check contouring accuracy and uncover any geometric errors.This testing ensures the machine structure is both square and parallel.

Control panel
The control panel swivels for easy use and also has a remote MPG for fast manual operations.

Hand Scraping
To ensure consistent high quality , each slide way is hand-scraped. Each axis saddle has Turcite material on it and a special "*" design is used along with a "Z" pattern for efficient oil through. There is an excellent distribution of oil to all axes, so setting time after rapid movements is eliminated, and stick-slip during cutting is minimized.

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