The DF-MX20 CNC Carbide Step Cylindrical Grinding Machine represents a paradigm shift in precision grinding technology for tooling and high-accuracy component manufacturing. Engineered specifically for cylindrical and taper grinding of round bar-type workpieces, this CNC-driven system excels in processing tool blanks, cutter profiles, and critical parts requiring micron-level dimensional stability. Its advanced automation capabilities and robust construction make it indispensable for tool manufacturers, machining workshops, and suppliers in demanding sectors like aerospace, automotive, and medical device production.
Technical Specifications
| Parameter | Specification |
|-----------------------------|-----------------------------|
| Model | DF-MX20 |
| Max. Outer Diameter | Φ| Z-Axis Travel (Left/Right) | 225 mm |
| X-Axis Travel (Cross) | 225 mm |
| Rated RPM Range | 0–1000 rpm |
| Main Motor Power | 3.5 kW |
| Grinding Wheel Spindle Speed | 0–3500 rpm |
| Grinding Wheel Spindle Power | 5.5 kW |
| Grinding Wheel Dimensions | φ200 × φ31.75 × 10–35 mm |
| Workpiece Diameter (Auto Load) | 3–12 mm |
| Workpiece Diameter (Manual Load) | 3–20 mm |
| Grinding Length (Auto) | ≤100 mm |
| Grinding Length (Manual)| ≤150 mm |
| Workpiece Spindle Runout| <0.005 mm |
| Grinding Wheel Runout | <0.005 mm |
| Machine Dimensions | 1600 × 1430 × 1700 mm |
| Weight | 2.5 T |
Key Engineering Advantages
1. High-Precision CNC Architecture
Sub-5μ Runout Guarantee: Proprietary spindle calibration ensures consistent geometrical accuracy at <0.005 mm runout, eliminating dimensional drift in high-volume production.
Closed-Loop Feedback System: Real-time position monitoring via linear encoders maintains ±3μ positional repeatability during complex taper transitions.
2. Optimized Efficiency Metrics
Dual-Power Synchronization: Synchronized 5.5 kW grinding spindle and 3.5 kW servo drive enable 27% faster cycle times versus conventional grinders.
3500 rpm Grinding Capability: High-frequency material removal reduces roughing cycle durations while preserving surface integrity through thermal management protocols.
3. Specialized Carbide Processing
**T 30° inclusive) in single setups for tool blank segmentation.
Micro-Diameter Compatibility: Processes ultra-slim components down to Ø3 mm with vibration-damped fixturing adapted for brittle materials.
Industrial Applications
Ideal for manufacturing:
Tapered end mills and reamers requiring concentricity ≤0.003 mm
Medical needle and probe mandrels needing Ra 0.2 μm finish
Automotive fuel injector pins with stepped diameter transitions
Tungsten carbide rotary burrs demanding profile consistency across batches
30% Reduction in Setup Time: Automatic workpiece recognition system eliminates manual centering.
Unmanned Production Capable: Integrated chip conveyor and coolant recycler support 72+ hour lights-out operation.
Tool Life Optimization: Adaptive wheel wear compensation extends diamond/cBN wheel usage by 40%.
