In the manufacturing of core power components for automobiles and construction machinery, the camshaft serves as an indispensable critical part of engines. Its contour accuracy and surface finish directly affect engine power output, operational smoothness and service life. Conventional cam grinding machines are plagued by drawbacks including insufficient machining precision, complicated operation, limited material compatibility and low grinding efficiency. Equipped with integrated precision mechanical structures, a fully digital intelligent CNC system and vitrified CBN high-speed grinding technology, the SUPER T-750CBN full CNC CBN camshaft grinding machine delivers high-precision and highly automatic professional grinding equipment compatible with a wide range of materials, emerging as the optimal choice for mass production of mid-to-high-end camshafts.
1. Versatile Machining Conditions for Stable and Reliable Operation
1.1 Flexible Operating Environment Compatibility
This grinding machine boasts strong adaptability to factory production environments. It can operate stably within an ambient temperature range of 5–50°C and relative humidity ≤80%. It adopts standard industrial power supply of AC380V±10% and 50Hz, matching the power configuration of most machining workshops. The machine installation zone must be kept away from impact and vibration sources. In addition, tight sealing of pipelines is required to prevent water and oil leakage, so as to maintain long-term precision of precision feeding and spindle assemblies and reduce equipment failure rates.
1.2 Broad Compatibility with Camshaft Workpieces
The machine is specially developed for camshaft machining, supporting workpieces made of medium carbon steel, bearing steel, high alloy steel and low carbon alloy steel. It handles workpieces with surface hardness ranging from 43 to 65 HRC and a machining radius allowance of 2–3 mm, covering mainstream camshaft blanks for engine manufacturing.
2. Core Technical Specifications & Superior Structural Performance
2.1 Complete Set of Professional Technical Parameters
The SUPER T-750CBN features well-balanced performance parameters that satisfy both small and large camshaft production demands:
- Grindable workpiece diameter: Φ10–260 mm
- Center height: 160 mm; maximum distance between centers & maximum grinding length: 750 mm
- Minimum feed resolution of grinding wheel carriage: 0.0001 mm
- Maximum workpiece load: 80 kg; adjustable workpiece rotational speed: 0–150 r/min
- Vitrified CBN grinding wheel dimension: Φ510×Φ40×(15–60)×127 mm, linear speed up to 80–100 m/s, driven by a 30 kW main motor
- Machining accuracy indicators: cam profile tolerance ±0.03 mm, adjacent angle tolerance 0.005 mm/°, base circle runout ≤0.025 mm, grinding surface roughness Ra ≤0.32 µm
- Overall machine weight: 7,500 kg; overall dimension: 3500×1950×1900 mm
- Headstock spindle taper: MT No.5 Morse taper, delivering stable clamping for heavy-duty workpieces.
1.1 Highlights of Mechanical Structure & Intelligent Control System
1.1.1 User-Friendly Dialogue CNC Control System
The machine adopts Taiwan Syntech 210MA-E5 CNC system equipped with a 15-inch touch screen. It replaces complicated traditional G-code programming with graphic and text dialogue operation, realizing foolproof operation without professional programming knowledge. It supports storage of all machining parameters; users can switch production batches rapidly by importing saved program files. With automatic cam lift table import and lift correction functions, one-time clamping enables complete precision grinding of all outer contours of a camshaft, greatly shortening setup time for product changeover.
1.1.2 Rigid T-Shaped Machine Bed & Dual-Axis High-Precision Feeding Mechanism
The T-layout machine bed separates horizontal workpiece travel and longitudinal grinding wheel feed, providing exceptional structural rigidity.
1. X-axis grinding wheel feed: Driven by Jacobes linear motor with closed-loop grating ruler feedback, paired with heavy-load THK roller linear guides. It delivers outstanding rigidity and responsiveness, eliminating overcutting during high-lift cam grinding and ensuring smooth cam transitions with top-tier positioning and repeat positioning accuracy.
2. Workpiece transverse feed: Built with hand-scraped plastic-coated hard rails, driven by high-inertia servo motor and imported ball screws, combining high movement precision and structural rigidity for stable long-stroke machining.
1.1.3 Hydrostatic Grinding Wheel Spindle & Precision Dressing Unit
The core grinding spindle is a 7.5 kW hydrostatic spindle with axial and radial runout ≤0.002 mm. The CBN wheel reaches a maximum rotational speed of 4000 RPM, supported by an independent water cooling system and pneumatic sealing to control thermal deformation during high-speed grinding. For CBN wheel dressing, a 1.5 kW electric spindle-driven diamond roller runs at 8000–10000 RPM with variable frequency speed regulation. Mounted outside the headstock box, the dressing unit is monitored by an AE ultrasonic detection system to guarantee consistent wheel surface precision.
1.1.4 High-Precision Headstock & Hydraulic Tailstock
The headstock spindle is directly actuated by a high-torque torque motor with angle encoder, achieving ultra-precise indexing with 0.001° sensitivity, supported by paired high-precision spindle bearings for high rigidity. It is fitted with a MT No.5 live center. The rail-type tailstock adopts hydraulic drive and spring clamping, with a 50 mm sleeve travel and arc-tipped special center. Foot valve-controlled tailstock release is interlocked with automatic grinding cycles to avoid safety risks from misoperation.
1.1.5 High-Capacity Cooling & Full Enclosed Safety Protection
The integrated cooling system includes a 600 L coolant tank, 300 mm wide magnetic separator and vortex impurity removal unit with a maximum flow rate of 200 L/min, filtration precision of 30–50 μm and a 3900 W immersion chiller with no consumable filter elements. Flow and liquid level sensors connect to the CNC system to trigger automatic alarm and shutdown for equipment protection. The full-cover sheet metal housing features a top opening for easy workpiece lifting and an automatic interlocked safety door. A dedicated water mist condensation recovery device is installed to handle heavy mist generated during CBN grinding, alongside error-proof fixtures for workpieces.
3. Machining Accuracy, Acceptance Standards & Technical Documentation
3.1 Standardized Acceptance Specifications
The design, manufacturing and acceptance of the SUPER T-750CBN comply with GB/T9061—2006 General Technical Specifications for Metal Cutting Machine Tools. Continuous trial production of 10 workpieces per customer drawing is required for acceptance, with zero cam surface burning and stable machine operation as mandatory pass criteria. Actual grinding cycle time is determined by the single-side machining allowance of specific camshaft products.
3.2 Complete Technical Document Support
4. Standard Equipment Configuration List
Every SUPER T-750CBN machine is delivered with the following complete standard configuration:
Conclusion
The SUPER T-750CBN full CNC camshaft grinding machine integrates linear motor feed, hydrostatic high-speed spindle, AE intelligent wheel dressing and automatic digital control technology. It delivers outstanding machining precision, stable mass production performance and simplified operation, perfectly matching the high-efficiency, high-quality production demands of automotive and engineering machinery camshaft manufacturers. As a cost-effective alternative to imported cam grinders, it significantly optimizes production efficiency and reduces the reject rate of precision camshaft components.
Post time: Aug-10-2026
