• Machine Type: CNC high-speed face and cylindrical grinding machine (JMA and JMP variants, including 3050/3075/30100/30150 models)
• Grinding Modes: External plunge, longitudinal, step-by-step, taper, arc, and combined end face grinding
• Capacity: 520/770/1020/1520mm center distance, 150mm center height, max workpiece weight 100/200/200/260kg
• Axis Performance: X/Z axes with 0.0001mm resolution, 0.001-10m/min feed speed, 11kW drive power
• Wheel System: Φ450~600mm wheels, 50m/s max speed, hydrostatic/hydrodynamic bearing technology
• Accuracy: Roundness 0.001~0.002mm, longitudinal consistency 0.003~0.005mm, Ra 0.10~0.32μm
• Control Options: FANUC oi or KND CNC systems with 0.1μm resolution servo drives
• Optional Features: In-process gauging, wheel anti-collision, dynamic balancing, patented wheel assembly mechanism
• Dimension & Weight: Total machine weight 5500/6000/7100/10000kg, integral protective enclosure
• Certification: CE & ISO 9001 certified, 1-year full machine warranty, lifelong technical support

The SDVEDON JMA(P)-30 series are high-end, independently developed CNC high-speed face and cylindrical grinding machines, including JMA (face and cylindrical) and JMP (external cylindrical) variants. Designed for mass production of medium and large automotive parts, they combine high precision, efficiency, and versatility.

These machines feature a rigid cast iron bed with multiple aging treatments for long-term stability. The wheel head uses our patented hydrostatic/hydrodynamic bearing technology for ultra-high rotation accuracy and rigidity. The headstock, driven by a high-output AC servo motor, offers stepless speed control and precise positioning for grinding special-shaped parts.

With multiple grinding modes, they can handle external cylindrical, end face, taper, arc, and stepped grinding operations in automatic cycles. The machines support FANUC oi or KND CNC systems, with optional in-process gauging and patented wheel assembly mechanism for enhanced productivity. Widely used in medium and large automotive engine and transmission parts, such as crankshafts, camshafts, main shaft necks, and transmission shafts.

• Bed & Structure: High-quality cast iron with multiple aging treatments, low deformation, and high stability.
• Integral Protection: Compact layout with full enclosure for safety and easy maintenance.

• Wheel Head: Hydrostatic/hydrodynamic bearing design for ultra-high rotation accuracy and rigidity.
• Headstock: High-output AC servo motor with 15-600rpm stepless speed control and precise positioning.
• Tailstock: Linear bearing structure with low friction, adjustable clamping force, and Morse No.5 inner taper.

• Accuracy: Roundness as low as 0.001mm, longitudinal consistency down to 0.003mm, and Ra 0.10μm finish.
• Grinding Modes: 6 key modes including plunge, longitudinal, step-by-step, taper, arc, and combined end face grinding.
• Wheel Dressing: CNC-controlled diamond dresser for custom wheel profiles.

• In-Process Control: Optional outer diameter and end face gauging for closed-loop quality control.
• Protection & Safety: Wheel anti-collision, idle stroke elimination, and dynamic balancing options.
• Patented Technology: Unique wheel assembly mechanism for quick and safe wheel changes.

The machine has passed CE & ISO 9001 international quality system certification, complying with global industrial safety and quality standards. Each unit undergoes strict factory precision inspection before delivery. SDVEDON provides 1-year full machine warranty and lifelong free technical support, including installation guidance and maintenance service.

1. The machine must be installed by professional technicians in a flat, vibration-free workshop, ensuring sufficient stabilized power supply and hydraulic/pneumatic systems are available on site.
2. Before operation, strictly follow the operation manual to inspect the spindle, servo drive, lubrication system, and safety guards to guarantee normal operation.
3. Operators must receive professional training, wear necessary protective equipment, and strictly abide by safety operation rules to avoid personal injury.
4. Regular maintenance is essential: clean the machine periodically, check the wheel condition, lubricate the guideways, and inspect the CNC system to ensure long-term stable performance.
5. When performing maintenance, wheel change, or troubleshooting, please cut off the power supply first to avoid safety accidents.

Widely used in medium and large automotive engine and transmission industries for precision grinding of crankshafts, camshafts, main shaft necks, transmission shafts, half shafts, and other heavy-duty parts. The SDVEDON JMA(P)-30 series is ideal for mass production requiring high efficiency, accuracy, and automated operation.