**CNC1890 Vertical Machining Center Technical Parameters**
**1. Travel Ranges**
X-axis (Table Left/Right Travel): 1800 mm
Y-axis (Table Front/Back Travel): 900 mm
Z-axis (Spindle Head Up/Down Travel): 680 mm
Distance from Spindle Center to Column Guideway: 940 mm
Distance from Spindle Nose to Worktable: 160-840 mm
Distance from Table Surface to Floor: 1080 mm
**2. Specifications**
Table Size: 2000 × 900 mm
T-Slots: 5-22×164 mm
Max. Table Load Capacity: 1800 kg
Spindle Speed Steps: Stepless Speed Regulation
Spindle Speed Range: 6000 rpm
Spindle Taper: BT50
**3. Machine Accuracy Standards**
JB/T 8771.2-1998 《Vertical Machining Centers – Testing of the Geometric Accuracy》
JB/T 8771.4-1998 《Machining Centers – Testing of the Linear Positioning Accuracy and Repeatability》
JB/T 8771.7-1998 《Machining Centers – Testing of the Machining Accuracy》
JB/T 8801-1998 《Machining Centers – Technical Conditions》
Positioning Accuracy: ±0.005/500 mm
Repeat Positioning Accuracy: ±0.003/500 mm
**4. Spindle Drive System**
Spindle Motor Power (Stepless): 20 HP
Spindle Lubrication: Uses imported high-grade grease lubrication, fully enclosed, maintenance-free
Spindle: High-speed high-precision spindle from Taiwan
**5. Feed System**
X/Y/Z Axis Rapid Traverse Rate: 16 m/min
AC Servo Motor Power: X/Z 4.5 kW, Y 7 kW
Cutting Feed Rate: 1-5000 mm/min
Manual Feed Rate: 0-2000 mm/min
Minimum Command/Increment: 0.001 mm
Ball Screw (Diameter × Pitch): φ50 × 12 mm
**6. Automatic Tool Changer (Optional)**
ATC Type: Umbrella Type/Disc Type (Arm-type ATC optional)
Tool Selection Method: Bi-directional Random
Tool Magazine Capacity: 20/24 tools (Arm-type ATC optional)
Max. Tool Weight: 10 kg
Tool Type: BT-50
Max. Tool Diameter: φ100 mm (Adjacent tools full)/φ160 mm (Adjacent tools empty)
Tool-to-Tool Change Time: 7-8 s/3-4 s (Arm-type)
**7. Machine Structure**
The machine is designed with overall balance considered. Main structure uses box-type and wide base. Main castings (base, column, saddle, spindle head, table, etc.) are made of optimized, high-quality, high-tension resin sand castings, stable structure with minimal deformation, capable of withstanding high tension and load. Stress-relieved through annealing and natural vibration aging to maintain precise movement and positioning. The entire machine is tested and analyzed for vibration sources, stress distribution, thermal response, structural displacement, etc., to ensure optimal design.
Spindle is a high-speed high-precision 6000 rpm spindle with #50 taper.
Three-axis guideway sliding surfaces are high-frequency hardened and precision ground, matched with Turcite-B fluororesin strips, and fully lubricated for high machining stability.
Three-axis ball screws use imported high-precision double-nut ball screws with direct drive and appropriate pre-tension design.
**8. Machine Protection**
Machine protection devices are safe, complete, and reliable.
Complies with GB15760-1995 《Safety Protection General Technical Conditions for Metal Cutting Machine Tools》.
Machine Noise: Complies with national standard <75 dB.
Electrical cabinet cooling uses a heat exchanger, sealed and dust-proof, protection rating IP65.
**9. Lubrication System**
Uses automatic lubrication device for forced lubrication of sliding surfaces and ball screws. Lubrication interval and oil volume are adjustable.
Lubricating Oil: T68# Way Lubricating Oil.
**10. Cooling System**
Coolant Tank Capacity: 260 L
Coolant Pump Motor Power: 2.1 HP, Flow Rate: 40 L/min
Coolant supply via universal nozzle.
**11. Pneumatic System**
The pneumatic system includes air service unit, pressure switch, solenoid valve, etc., for tool changing and spindle air blow. Pressure: 6-8 kgf/cm², Flow Rate: 220 L/min. Optional external air gun.
**12. Electrical System**
Complies with GB/T5226.1-1996 《Electrical Equipment of Industrial Machines – Part 1: General Technical Conditions》.
The system has comprehensive and reliable interlocking, safety protection, and fault self-diagnosis/alarm functions.
Equipped with RS232 standard communication interface for program storage via computer/diskette.
Other control systems can be selected per customer request.
**13. Machine Accessories and Purchased Components**
Machine accessories and purchased components are selected from high-quality domestic and international brands (see separate list for details).
**14. Three-Color Warning Light**
Red Light: Indicates alarm.
Yellow Light: Indicates program end.
Green Light: Indicates program running.
**15. Machine Power Supply**
Power Supply Voltage Range: AC 3-phase 380V ±10%
Power Frequency: 50Hz ±1%, Three-phase
Total Machine Power Consumption (Max.): 32 kVA
**16. Normal Operating Conditions**
Ambient Temperature: 0-40°C
Humidity: ≤85%
Atmosphere: Non-corrosive. Lighting: Adequate, well-ventilated.
**17. Machine Weight**
Machine Weight: 13000 kg
