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China VMC1160 Vertical Machining Center - 3, 4, 5 Axis CNC Machine by Leading Suppliers and Factory
Technology Parameter
| Working Base | Items | Unit | VMC640 | VMC855 | VMC1160 | |||
| Size | mm | 800*400 | 1000*500 | 1200*600 | ||||
| Bearing capacity | kg | 500 | 500 | 1000 | ||||
| T-slot size(each) | mm | 18*3 | 18*5 | 18*5 | ||||
| Processing Range | X axis drive | mm | 600 | 800 | 1100 | |||
| Z axis drive | mm | 450 | 550 | 600 | ||||
| Y axis drive | mm | 400 | 550 | 600 | ||||
| Spindle nose to table | mm | 100-550 | 140-690 | 120-720 | ||||
| Spindle nose to column | mm | 390 | 600 | 650 | ||||
| Spindle | Taper hole | BT40 | BT40 | BT40 | ||||
| Revolving Speed | rpm | 50-8000 | 50-8000 | 50-8000 | ||||
| Max. output torque | N.m | 48 | 70 | 70 | ||||
| Spindle Motor | Kw | 11/15 | 11/15 | 11/15 | ||||
| Spindle type | Timing Belt | Timing Belt | Timing Belt | |||||
| Tool | Shank | MAS403 BT40 | MAS403 BT40 | MAS403 BT40 | ||||
| Rivet | MAS403 BT40-I | MAS403 BT40-I | MAS403 BT40-I | |||||
| Feeding | Three-axis drive motor torque(X/Y/Z) | Nm | 8/8/18 | 18/18/28 | 18/18/28 | |||
| Fast feeding velocity | m/min | X:24 / Z:24 / Y:24 | X:24 / Z:24 / Y:24 | X:32 / Z:32 / Y:30 | ||||
| Feed Speed | mm/min | 1-18000 | 1-20000 | 1-20000 | ||||
| Power Capacity | Power Capacity | kVA | 25 | 25 | 25 | |||
| Position | Positioning Accuracy | mm | 0.01 | 0.01 | 0.01 | |||
| Repeat Positioning Accuracy | mm | 0.006 | 0.008 | 0.008 | ||||
| Machine tool volume | Height of machine | mm | 2400 | 2600 | 2800 | |||
| Floor space | mm x mm | 2300x 2100 | 3200x 2400 | 3800x 2600 | ||||
| Weight | kg | 2850 | 4800 | 6200 | ||||
Product Description
1. Machine Tool Overall Layout
The VMC1160 vertical machining center adopts a vertical frame structure with the column fixed to the bed. The spindle head moves vertically along the column (Z-axis), the saddle moves longitudinally along the bed (Y-axis), and the worktable moves transversely along the saddle (X-axis). Key components such as the bed, worktable, saddle, column, and spindle head are made from high-strength cast iron using resin sand molding technology. These components undergo double stress-relief aging treatment and are optimized via Pro/E and Ansys simulations to enhance structural rigidity and stability, effectively minimizing deformation and vibration caused by cutting forces.
2. Drive System
Three-axis guide ways: Equipped with imported linear rolling guides featuring low static/dynamic friction, high sensitivity, minimal high-speed vibration, no low-speed crawling, and superior positioning accuracy. This ensures excellent servo drive performance and enhances machining precision and stability.
Direct coupling: Three-axis servo motors are directly connected to high-precision ball screws via flexible couplings, eliminating intermediate components for backlash-free transmission, flexible feed, and accurate positioning.
Z-axis safety: The Z-axis servo motor includes an automatic brake function that engages during power failure to lock the motor shaft, ensuring safety.
Direct coupling: Three-axis servo motors are directly connected to high-precision ball screws via flexible couplings, eliminating intermediate components for backlash-free transmission, flexible feed, and accurate positioning.
Z-axis safety: The Z-axis servo motor includes an automatic brake function that engages during power failure to lock the motor shaft, ensuring safety.
3. Spindle Assembly
Manufactured by a specialized Taiwanese supplier, the spindle assembly offers high precision and rigidity. Equipped with P4-grade precision spindle bearings, the entire assembly undergoes dynamic balancing and run-in testing in a temperature-controlled environment to extend service life and reliability. The spindle features infinitely variable speed control within its range.
4. Tool Magazine
Robotic tool changer: Mounted on the column side, the tool disk is driven and positioned by a roller cam mechanism.
Automatic Tool Changer (ATC): Utilizes a preloaded gear cam mechanism for fast, quiet, and precise tool exchange (tool release/loading) once the spindle reaches the designated position.
Automatic Tool Changer (ATC): Utilizes a preloaded gear cam mechanism for fast, quiet, and precise tool exchange (tool release/loading) once the spindle reaches the designated position.
5. Cutting Cooling System
High-capacity cooling: Includes a high-flow coolant pump (0.48 kW, 3 bar pressure) and large tank for efficient circulation.
Dual-mode cooling: The spindle head features switchable air/water cooling nozzles controllable via M-code or panel operation.
Cleaning: An air gun is provided for machine maintenance.
Dual-mode cooling: The spindle head features switchable air/water cooling nozzles controllable via M-code or panel operation.
Cleaning: An air gun is provided for machine maintenance.
6. Pneumatic System
Filtration: The pneumatic triple unit removes impurities and moisture from the air supply to prevent component damage/corrosion.
PLC-controlled valves: Ensure rapid and precise execution of spindle tool release, center air blast, tool clamping, and air cooling.
PLC-controlled valves: Ensure rapid and precise execution of spindle tool release, center air blast, tool clamping, and air cooling.
7. Lubrication System
Centralized auto-lubrication: Delivers metered oil to guide ways and ball screws via quantitative distributors, reducing friction, improving motion accuracy, and prolonging component lifespan.
8. Machine Protection
Full enclosure: Complies with safety standards, preventing coolant splashing while ensuring operator safety and aesthetic appeal.
Guideway covers: Shield against chips and coolant ingress to protect ball screws and guides from wear/corrosion.
Guideway covers: Shield against chips and coolant ingress to protect ball screws and guides from wear/corrosion.
9. Chip Conveyor (Optional)
Y-axis split guards: Direct chips onto the bed, where an internal inclined surface guides them to a bottom-mounted chain conveyor.
Chain conveyor: Features high capacity, low noise, overload protection, and compatibility with various chip types (fragmented or coiled).
Chain conveyor: Features high capacity, low noise, overload protection, and compatibility with various chip types (fragmented or coiled).
Frequently Asked Questions
What are the main differences between VMC640, VMC855, and VMC1160?
The main differences lie in their working table size, bearing capacity, and axis travel ranges. For instance, the VMC1160 offers a larger table size of 1200x600 mm and a maximum bearing capacity of 1000 kg, compared to the 800x400 mm table (500 kg capacity) of the VMC640 and the 1000x500 mm table (500 kg capacity) of the VMC855.
What type of spindle is equipped on these machining centers?
All three models (VMC640, VMC855, and VMC1160) feature a high-precision BT40 Timing Belt spindle. The revolving speed ranges from 50 to 8000 rpm, powered by an 11/15 Kw spindle motor.
How does the Z-axis safety mechanism work during a power failure?
The Z-axis servo motor is equipped with an automatic brake function. In the event of a sudden power outage, the brake immediately engages to lock the motor shaft, preventing the spindle head from dropping and protecting both the workpiece and the machine tool.
What kind of linear guides are used in the drive system?
The drive system utilizes imported linear rolling guides on all three axes. These guides feature low static/dynamic friction, high sensitivity, and minimal high-speed vibration, ensuring precise positioning and overall machining stability.
Is the chip conveyor included as standard or is it optional?
The chip conveyor is an optional accessory. If selected, it includes Y-axis split guards to direct chips to a bottom-mounted, low-noise chain conveyor equipped with overload protection, suitable for various chip shapes.
How is the lubrication system managed on these vertical machining centers?
The machines feature a centralized automatic lubrication system. It delivers metered oil to the guide ways and ball screws via quantitative distributors, which minimizes friction, maintains motion accuracy, and extends the lifespan of components.