Amid the global upgrading of high-end precision manufacturing industries, sectors including aerospace, medical devices, new energy vehicles, industrial robot reducers, hydraulics and moulds impose unprecedented strict standards on machining accuracy, long-term stability and flexible production capacity of non-circular, eccentric and special-shaped shaft parts. Conventional ordinary cylindrical grinders can only process standard round workpieces, while machining camshafts, crankshafts, eccentric shafts for harmonic reducers, polygonal precision shafts and other special-shaped components suffers from poor accuracy, tedious commissioning and insufficient stability in mass production.
The GP32 high precision synchronous cylinder grinder adopts leading follow-up grinding technology, full-closed-loop nanometer-level transmission structure and intelligent graphical CNC system. As core high-precision equipment targeting manufacturers worldwide, it supports both single-piece trial production and uninterrupted mass manufacturing, covering the whole production chain of precision special-shaped parts.
GP32 Grinder Overall View
I. Five Core Competitive Advantages Redefining Global Precision Grinding Standards
1. Cutting-edge Synchronous Grinding Technology for All Types of Special-Shaped Workpieces
The GP32 features a high-precision X/C axis synchronous interpolation follow-up grinding architecture, with real-time linkage between linear motor wheel head and direct-drive workpiece spindle. It stably processes eccentric shafts, crankshafts, elliptical shafts, polygons, rhombuses, trapezoids, teardrop profiles and all other non-standard special contours, while retaining full functionality for standard cylindrical grinding. The dual-purpose design greatly cuts equipment procurement costs and factory floor occupation.
The machine tool has passed rigorous high/low temperature and heavy-load endurance tests worldwide, delivering exceptional precision retention. Under 24-hour non-stop mass production, the roundness of ground workpieces stays within ≤1μm, fully meeting the micron-level accuracy requirements of high-end components.
rocessable Part Crankshaft Grinding Demo
2. Ultra-Rigid Meehanite Cast Iron Base with Outstanding Thermal Stability & Vibration Damping
The integral machine base is optimally designed via finite element analysis and cast as a single meehanite casting. It outperforms epoxy granite and steel frames in two key aspects:
●Balanced heat dissipation for thermal stability: Cast iron features a low thermal expansion coefficient and superior thermal conductivity. Heat generated during grinding spreads evenly and rapidly, automatically compensating short-term temperature fluctuations to eliminate dimensional drift caused by thermal deformation.
●High rigidity & strong vibration absorption: All core structures including wheel head, work head, tailstock and spindles are made of high-grade cast iron or steel with consistent thermal expansion coefficients to suppress resonance, delivering chatter-free grinding at both low and high speeds.
The worktable adopts hand-scraped full-support V-flat guideways coated with self-lubricating Turcite® material, achieving an ultra-low friction coefficient to eliminate low-speed creeping and drastically reduce guideway wear, extending the machine’s service life.
Thermal Expansion Comparison Chart
3. Global Top-Tier Precision Components Form a Nanometer Closed-Loop Transmission System
All core motion units of GP32 are equipped with world-leading brand precision parts, building a full closed-loop ultra-precise transmission chain:
(1) X-axis Wheel Feed System: Fitted with Sodick linear motors offering instantaneous thrust ranging from 1660kg to 3060kg to eliminate vibration across magnetic poles. Paired with Heidenhain 50nm grating ruler full closed-loop feedback, the X-axis provides 260mm travel and a rapid traverse speed of 1.5m/s with a minimum resolution of 0.0001mm, minimizing X/C axis follow-up interpolation errors. Self-recirculating roller linear guides deliver multi-directional heavy load capacity for heavy-duty workpiece grinding.
(2) Z-axis Worktable System: Driven by Japanese C2-grade high-precision THK ball screw servomotors, with 600mm travel and a maximum feed speed of 8m/min. Zero backlash during heavy-load machining guarantees stable positioning and repeat accuracy.
(3) Hydrostatic-Hydrodynamic Grinding Wheel Spindle: Custom Guangzhou Haozhi spindle with composite deep & shallow oil chamber structure. A high-pressure oil film enables complete liquid friction with zero metal contact. The standard 450mm grinding wheel can be upgraded to an optional φ510mm wheel, supporting a maximum linear speed of 40m/s with integrated oil cooling for constant thermal stability, high load capacity, low noise and long-lasting precision.
Grinding Wheel Head Assembly
(4) Direct-Drive C-axis Work Head: Haozhi permanent magnet synchronous direct-drive spindle built with Renishaw round grating encoder. It reaches a maximum speed of 600rpm with repeat positioning accuracy of ±2arcsec and rated output torque of 47.8Nm. The MT4 taper bore supports center-through coolant flow. The rotary base enables -45° ~ +45° swing, equipped with air flotation for effortless repositioning.
Direct-Drive Work Head Spindle
(5) High-Rigidity Air-Floating Tailstock: MT4 taper dead center with high-precision sliding bearings and horizontal adjustment. The air-floating base allows locking at any position without abrasion during movement, supporting workpieces up to 60kg for center grinding.
Air-Floating Tailstock
4. Co-Developed LYNUC Graphical CNC System for Global User-Friendly Operation
The machine is equipped with a dedicated follow-up grinding CNC system jointly developed by HOTAMN and LYNUC, featuring a Windows-based visual HMI with a 10.4-inch TFT color touchscreen, eliminating complex G-code programming entirely:
● Full graphical profile editing: Operators can visually draw contours of special-shaped parts and generate grinding cycles with one click. New staff can master basic operation within one hour, cutting training cycles for overseas factory teams significantly.
● Modular grinding and dressing cycles, compatible with standard ISO programs. 3Gb large-capacity internal storage supports multi-channel data transfer via USB, Ethernet and RS232 ports.
● Built-in remote diagnosis, background program editing and multi-level security password protection. The hard-disk-free architecture delivers superior stability, adapting to various power supply voltages and workshop environments worldwide.
● Expandable CAD/CAM software interface, compatible with mainstream global industrial design software for fast import of complex special-shaped part drawings.
5. Flexible Configuration & Comprehensive Global After-Sales Support
A full portfolio of optional accessories meets diversified production demands globally: online measuring systems, wheel dynamic balancing devices, automatic loading/unloading equipment, diamond dressers, special fixtures, coolant filtration and oil mist recovery systems. Custom turnkey project solutions are available for integrated production lines.
Our global customer service system guarantees a 1-hour rapid response upon receiving inquiries, with professional service engineers arriving at customer sites within 48 hours. All service technicians receive regular professional training and possess over 5 years of on-site experience, delivering consistent, efficient and reliable after-sales technical support across regions.
II. Wide Global Application Scenarios
The GP32 synchronous grinder perfectly balances ultra-high precision, rigidity and efficiency, with flexible design catering to cross-industry manufacturing needs:
1. Aerospace: Precision turbine shafts, landing gear special-shaped core parts
2. Medical Equipment: Implant special shafts, surgical instrument precision components
3. New Energy & Automotive: Crankshafts, eccentric camshafts, transmission polygonal shafts
4. Industrial Robotics: Harmonic & planetary reducer eccentric shafts, wave generator profiles
5. Hydraulics & Moulds: Special-shaped valve shafts, precision mould core pins
It serves as a universal grinding machine for both mass production and small-batch custom trial machining, greatly optimizing production efficiency and part consistency for manufacturers around the world.
III. Key Technical Specifications Summary
| Item | Parameter |
| Center Height / Max Grinding Diameter | 210mm / 320mm |
| Distance Between Work Centers | 600mm |
| Max Workpiece Weight Between Centers | 60kg |
| Standard / Optional Grinding Wheel Diameter | φ450mm / φ510mm |
| X-axis Travel / Rapid Traverse Speed | 260mm / 1.5m/s |
| X-axis Linear Motor Instant Thrust | 1660–3060kg |
| Z-axis Travel / Max Feed Speed | 600mm / 8m/min |
| X/Z Axis Minimum Resolution | 0.0001mm |
| C-axis Max Speed / Repeat Position Accuracy | 600rpm / ±2arcsec |
| Grinding Roundness | ≤1μm |
| CNC Control System | LYNUC Custom Grinding CNC |
| Overall Machine Dimension | 3800×3200×2195mm |
| Net Weight | 5440kg |
IV. Conclusion
Against the backdrop of global precision manufacturing upgrading, the GP32 high precision synchronous cylinder grinder breaks through the limitations of traditional grinding equipment. Combining ultra-rigid mechanical structure, world-class core components, intelligent graphical programming and all-round service support, it provides a high-efficiency, high-stability and cost-effective grinding solution for global manufacturers engaged in special-shaped shaft processing. Whether for small-scale precision workshops or large automated mass-production factories, the GP32 delivers reliable micron-level machining performance and long-term precision retention, becoming an indispensable core equipment for high-end precision part production worldwide.
Contact Details
Company Name: Beijing Yuhen Machinery Co., Ltd.
Address: 1809, 15th Floor, Building 1, No. B12 Zhongguancun South Street, Haidian District, Beijing
Contact Person: Ivy
WhatsApp: +86-189-2559-3414
Tel / WeChat: +86-189-2559-7030
Email: Sales5@yuhenmachine.com
Post time: Aug-16-2026
