Product Features:
The G8-380 is a high-precision, high-efficiency professional jewelry engraving machine, specifically designed for surface engraving, patterning, and mirror polishing of precious metals (gold, platinum, K-gold, etc.) and jewelry. Its innovative rotating structure and highly stable fly-cutting system enable complex pattern processing, significantly improving production efficiency and finished product smoothness, making it an advanced device in the jewelry processing industry.
Core Advantages
Flexible Multi-Angle Processing
The worktable supports 180° automatic rotation and wide-angle tilting, allowing easy multi-surface patterning on 3D curves and irregular jewelry. Automated engraving eliminates frequent manual adjustments.
High-Precision Fly-Catter Patterning System
Equipped with a high-rigidity fly-cutting disc, offering high-speed rotation and stable operation to ensure smooth, delicate engraving lines free of burrs or vibration marks.
Long tool lifespan, compatible with various cutter heads for different pattern depths and complexities.
High Efficiency & Mirror Finish
Fast processing speed, with patterning efficiency 30% higher than traditional equipment.
Delivers a high-gloss mirror finish directly, reducing post-polishing steps and labor costs.
Sturdy & Durable Design
High-quality material construction with strong vibration resistance, ensuring no deviation during prolonged continuous operation.
Intelligent lubrication system minimizes wear on key components, lowering maintenance costs.
Technical Specifications
Spindle Speed: 0–40,000 RPM (adjustable)
Rotation Angle: 180° automatic worktable rotation + multi-directional tiltingProcessing Precision: ±0.005mm
Compatible Materials: Gold, silver, platinum, copper, and other soft metals
Power Supply: 380V/50Hz
Applications
Jewelry Pattern Engraving: Complex designs like dragons, phoenixes, floral motifs, and geometric textures.
Ring/Bangle Patterning: Uniform processing on inner/outer surfaces with no dead angles.
Mirror Polishing: High-gloss surface treatment in a single step.
Technical Parameters:
| No. | Item | Details | |
| 1 | W axis reducer | Alpha, Germany | Rated torque 167.3n.m, Instaneous max. torque 585.2n.m, Rated speed 43 rpm, max. speed 85 rpm |
| 2 | B axis reducer | Alpha, Germany | Rated torque 88.9n.m, Instaneous max. torque 312n.m, Rated speed 43 rpm, max. speed 85 rpm |
| 3 | C axis reducer | Alpha, Germany | Rated torque 88.9n.m, Instaneous max. torque 312n.m, Rated speed 43 rpm, max. speed 85 rpm |
| 4 | Z2 axis | Rexroth, Germany | Repeatability: +/-0.005mm |
| 5 | 8th axis second spindle | electric | 4.0kw, max. speed 26000 rpm, 6 additional tools max. dia. of round cutter: 70mm min. dia. of round cutter: 40mm |
| 6 | Transmission components | Rexroth, Germany | Repeatability: +/-0.005mm |
| 7 | Operation | SYNTEC system | 220MB-E5 inch screen operation box, max. extending 600mm on width at left side |
| 8 | Servo motor | 200w/400w/750w | |
| 9 | Main spindle | electric | 3.7kw, max. speed 40000 rpm water cooling with flow-alarm |
| 10 | Tool magazine | servo-drive | Up to 15 tools for vertical main spindle |
| 11 | Tool holder | ISO20 | |
| 12 | Collet chuck | ER-16 | |
| 13 | Lubrication | Timing automatic oiling | |
| 14 | Working flatness | +/-0.005mm | |
| 15 | X1 axis stroke | 380mm | |
| 16 | X2 axis stroke | 80mm | |
| 17 | Y axis stroke | 50mm | |
| 18 | Z1 axis stroke | 90mm | |
| 19 | Body weight | 1.7 tons | |
| 20 | Front door | sliding door | |
| 21 | Layout (mm) | main body | 1600 width*1300 depth*2050 height |
| 22 | Power requirement | three-phase | 380v/50hz |
Support and Services:
Technical support
Installation
Training
Maintenance
Troubleshooting
Software upgrade
Packing and Shipping:
Fumigation wooden case by sea or by air
FAQ:
Q: Are you a dealer or manufacturer?
A: We, Guanglijin, is a manufacturer of CAD/CAM CNC machine with over 20 years experience.
Q: Where are you from?
A: We are from Shenzhen China, one of the most creative city in the world.
Q: Do you provide overseas support or service?
A: Yes, we have a technican team which can travel abroad to do global service and support.
Q: Does this machine come with any certification?
A: Our machines are CE certificated.
