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CNC cylindrical grinders are one of the core pieces of equipment in modern precision manufacturing. They use computer numerical control (CNC) systems to precisely control the movement of grinding wheels and workpieces, enabling high-precision grinding of cylindrical, conical, or other complex rotating parts.
In general, the core advantages of CNC external cylindrical grinders lie in their combination of high precision, high efficiency, and high flexibility. Its multi-axis interpolation capability enables efficient completion of complex contour grinding (such as steps, conical surfaces, and arcs) in a single operation.
Additionally, integrated online measurement and automatic compensation technology allows real-time error correction, ensuring processing stability. Furthermore, it is easily integrated into automated production lines, enabling unmanned intelligent production, significantly enhancing the efficiency and reliability of modern precision manufacturing.
Item | Unit | GC-400VS | GC-400DVS | GC-400HVS | GC-600VS | GC-600DVS | GC-600HVS | |
Processing Capability | Max. Grindable Outer Diameter | mm | φ400 | φ600 | ||||
Min. Grindable Inner Diameter | mm | φ120 | φ60 | / | φ120 | φ60 | / | |
Distance from Table Surface to Spindle Nose | mm | 550 | 550 | |||||
Rotary Table (Worktable) | Table Diameter | mm | φ400 | φ600 | ||||
Rotary Table Speed | rpm | 0∽250 | 0∽250 | |||||
Rotary Table Power / Torque | kw/nm | 5.3/250 | 8.4/320 | |||||
Grinding Wheel and Electric Spindle | Max. Grinding Wheel Size (Outer Diameter) | mm | φ350 | φ350 | ||||
Min. Grinding Wheel Size (Inner Diameter / Face) | mm | φ80 | φ120 | φ80 | φ120 | |||
Grinding Wheel Spindle Interface (Outer Diameter) | / | 1:5 | 1:6 | |||||
Grinding Wheel Spindle Interface (Inner Diameter / Face) | / | / | HSK-C63 | HSK-C40 | / | HSK-C63 | ||
Spindle Power (Outer Diameter / Inner Diameter) | kw | 6 | 6/13 | 6/8.5 | 25 | 25/13 | ||
Spindle Torque (Outer Diameter / Inner Diameter) | nm | 37 | 37/20 | 37/10 | 60 | 60120 | ||
Rated Speed (Outer Diameter / Inner Diameter) | rpm | 4000 | 4000/8000 | 4000 | 4000/8000 | |||
X1 / X2 Axis (Left and Right) | Left and Right Travel | mm | 400 | 400/400 | 400 | 400/400 | ||
Feed Rate | mm/min | 0∽5000 | 0∽5000 | |||||
Minimum Setting | mm | 0.001 | 0.001 | |||||
Z1 / Z2 Axis (Up and Down) | Up and Down Travel | mm | 500 | 500/500 | 500 | 500/500 | ||
Feed Rate | mm/min | 0∽5000 | 0～5000 | |||||
Minimum Setting | mm | 0.001 | 0.001 | |||||
Motors | X1, X2 Axis (*Yaskawa Servo) | kw/nm | 1.8/11.5 | 1.8/11.5 | 1.8/11.5 | 1.8/11.5 | ||
Z1, Z2 Axis (*Yaskawa Servo) | kw/nm | 1.8/11.5 | 1.8/11.5 | 2.9/18.6 | 2.9/18.6 | |||
Coolant Pump (Cooling / Water Gun) | kw | 0.55/0.37 | 0.55×2/0.37 | 0.55/0.37 | 0.55×2/0.37 | |||
Transport and Packaging Dimensions (LxWxH) | mm | 3500×3000×3000 | 3500×3000×3000 | |||||
Working Footprint (LxWxH) | mm | 4500×3500×2800 | 4500×3500×2800 | |||||
Machine Net Weight / Gross Weight (Approx.) | ton | 6/6.5 | 717.5 | 6.517 | 7.518 | |||
Maximum Power Required (Approx.) | kva | 18 | 35 | 30 | 40 | 60 | 60 | |
Item | Unit | GC-600V | GC-600HV | GC-800V | GC-800HV | GC-1000V | GC-1000HV | |
Processing Capability | Max. Grindable Outer Diameter (φ150 Grinding Wheel) | mm | φ650 | φ850 | φ1010 | |||
Distance from Table Surface to Spindle Nose | mm | 950 | 950 | 900 | ||||
Outer Diameter Grinding Height | mm | 450 | 450 | 400 | ||||
Inner Diameter Grinding Height | mm | 350 | 350 | 300 | ||||
Table Load Capacity | kg | 800 | 800 | Low speed: 4000, High speed: 1500 | ||||
Rotary Table (Worktable) | Table Diameter | mm | φ600 | φ800 | φ1000 | |||
Rotary Table Speed | rpm | 0～150 | 0～150 | 0∽100 | ||||
Rotary Table Power / Torque | kw/nm | 11/1050 | 11/1050 | 23/2250 | ||||
Grinding Wheel and Electric Spindle | Grinding Wheel Diameter (Vertical Spindle) | mm | φ50-φ300 | φ50-φ300 | φ50-φ300 | |||
Grinding Wheel Spindle Interface (Vertical Spindle) | / | HSK-C100 | HSK-C100 | HSK-C100 | ||||
Spindle Power / Torque (Vertical Spindle) | Kw/nm | 28/109 | 28/109 | 28/109 | ||||
Spindle Speed (Vertical Spindle) | rpm | 500-8000 | 500-8000 | 500-8000 | ||||
Grinding Wheel Diameter (Horizontal Spindle) | mm | / | φ350 | / | φ350 | / | φ350 | |
Grinding Wheel Spindle Interface (Horizontal Spindle) | / | / | 1:6 | / | 1:6 | / | 1:6 | |
Spindle Power / Torque (Horizontal Spindle) | Kw/nm | / | 25/60 | / | 25/60 | / | 25/60 | |
Spindle Speed (Horizontal Spindle) | rpm | / | 500-5000 | / | 500-5000 | / | 500-5000 | |
X1 / X2 Axis (Left and Right) | Left and Right Travel | mm | 1150 | 575/575 | 1150 | 575/575 | 1150 | 575/575 |
Feed Rate | mm/min | 0∽6000 | 0∽5000 | 0∽5000 | ||||
Minimum Setting | mm | 0.001 | 0.001 | 0.001 | ||||
Z1 / Z2 Axis (Up and Down) | Up and Down Travel | mm | 950 | 950/950 | 950 | 950/950 | 900 | 900/900 |
Feed Rate | mm/min | 0∽5000 | 0∽5000 | 0∽5000 | ||||
Minimum Setting | mm | 0.001 | 0.001 | 0.001 | ||||
Motors | X1, X2 Axis (*FANUC Servo) | kw/nm | 3.0/27 | 3.0/27 | 3.0/27 | 3.0/27 | 3.0/27 | 3.0/27 |
Z1, Z2 Axis (*FANUC Servo) | kw/nm | 3.0/27 | 3.0/27 | 3.0/27 | 3.0/27 | 3.0/27 | 3.0/27 | |
Coolant Pump (Cooling / Cleaning) | kw | 1.5/0.55 | 1.5×2/0.55 | 1.5/0.55 | 1.5×2/0.55 | 1.5/0.55 | 1.5×2/0.55 | |
Transport and Packaging Dimensions (L×W×H) | mm | 3700×3700×3900 | 3700×3700×3900 | 3700×3700×3900 | ||||
Working Footprint (L×W×H) | mm | 4000×4000×4900 | 4000×4000×4900 | 4000×4000×4900 | ||||
Machine Net Weight / Gross Weight (Approx.) | ton | 17.5/19 | 19.5/21 | 18/19.5 | 20/21.5 | 18.5/20 | 20.5122 | |
Maximum Power Required (Approx.) | kva | 50 | 80 | 50 | 80 | 60 | 90 | |
KULA CNC Cylindrical Grinders are engineered with a focus on delivering unmatched value and performance, catering to a broad spectrum of industrial needs. Experience the KULA advantage:
Unrivaled Size Coverage: With models ranging from the compact GC-400 series (up to φ400mm outer diameter) to the heavy-duty GC-1000HV (up to φ1010mm outer diameter), KULA offers the most extensive processing capacity in its class, meeting the demands for both small precision parts and large industrial components.
Exceptional Precision & Control: Achieve tight tolerances and superior surface finishes with advanced CNC systems. Our machines feature precise axis movements (minimum setting of 0.001mm) and robust rotary tables, ensuring consistent and repeatable results.
Versatile Configuration Options: Tailor your grinding solution with our diverse model offerings:
V vs. HV Series: Choose between Standard (V) and High-Performance (HV) models. HV series often boast higher spindle power, greater torque, larger processing diameters, and dual-spindle capabilities for enhanced efficiency.
Optional Horizontal Spindles: Many of our machines are equipped with optional horizontal grinding spindles, enabling multi-directional machining and complex contour grinding in a single setup.
Spindle Options: Select from various spindle interfaces (HSK-C100, 1:6, etc.) and power/speed configurations to match your specific material and grinding requirements.
High-Efficiency & High-Volume Production: Powered by high-spec electric spindles (up to 28kW vertical, 25kW horizontal) and robust rotary tables with high torque, KULA grinders maximize throughput and are ideal for large-scale automated production.
Advanced Automation & Integration: Featuring leading FANUC and Yaskawa servo motors for precise axis control, our grinders are designed for seamless integration into automated production lines, enabling efficient, unmanned intelligent manufacturing.
Robust Industrial Design: Built with heavy-duty components and high table load capacities, KULA machines are engineered for durability, reliability, and long-term performance in demanding industrial environments.
Factory-Direct Value: Benefit from competitive pricing, direct technical support, and a streamlined supply chain by purchasing directly from KULA.
KULA's CNC Cylindrical Grinders are indispensable tools in a wide spectrum of industries where precision, efficiency, and the ability to process large components are paramount:
Automotive Industry: Ideal for large crankshafts, transmission shafts, drive axles, industrial vehicle components, large bearing races, and fuel injector parts.
Aerospace Industry: Perfect for grinding large turbine shafts, rotor blades, landing gear components, aircraft engine parts, and hydraulic actuators requiring extreme accuracy.
Industrial Machinery: Manufacturing of large rollers, precision shafts for heavy machinery, pump shafts, hydraulic components, and other large-diameter industrial parts.
Medical Device Industry: Processing of precision shafts and components for large medical equipment where exceptional surface finish and accuracy are critical.
General Industry: Suitable for a broad range of large-diameter cylindrical parts requiring high-quality grinding and robust performance.
