GMB-B Series
5-Axis Ultra-High-Speed Gantry Machining Centers for efficient large-part production.
The GMB-B Series combines CFRP lightweight gantry technology, ultra-high dynamic performance and 5-axis machining capability for efficient processing of large structural components. It is designed for high-speed machining of new energy vehicle components, giga-cast aluminum parts and aerospace structures.
Siemens and Heidenhain CNC control options.
Siemens CNC
Heidenhain CNC
Configured by Application
CFRP gantry technology for ultra-high-speed machining of large components.
The GMB-B Series uses lightweight CFRP moving components, high-dynamic axis motion and automation-ready machining concepts to reduce cycle times, improve production capacity and support efficient large-part machining.
CFRP Moving Components
The moving components, including crossbeam, saddle and ram, use a CFRP lightweight structure to reduce moving mass and improve dynamic machining behavior.
50%
300%
Increased stiffness
1000%
Improved thermal stability
Ultra-High-Speed Motion
High traverse rates and acceleration support fast machining cycles, reduced idle time and improved efficiency compared with traditional gantry machining concepts.
150 m/min
Rapid traverse
15 m/s²
Acceleration
100%+
Machining efficiency improvement
Fast Tool Change
A fast tool change concept helps reduce non-cutting time and supports efficient production sequences in demanding high-speed machining processes.
≤ 4 s
Average tool change time
40 / 80 tools
Chain-type magazine
HSK-A63
Tool holder
Automation-Ready Production
The machine concept supports intelligent production line integration, fixture process design and automated loading and unloading for large structural components.
Large-span gantry
Broad machining range
Robot loading
Front loading concept
Turnkey support
Fixture, tools and process
Ultra-High Efficiency
High-speed machining, rapid traverse and fast tool changing help reduce cycle time and significantly improve machining efficiency for large aluminum components.
Lower Costs
CFRP lightweight design reduces moving mass, energy consumption and foundation requirements compared with traditional gantry machine concepts.
Stable Quality
High servo gain, dynamic contouring precision and stable reversal motion support reliable machining quality under high acceleration and deceleration.
Improved Production Capacity
Large machining range, automation-ready loading concepts and complete fixture process support help increase output for large structural component production.
Technical data of the GMB-B Series.
The table below summarizes the key technical data of the GMB-B Series, including axis travel, rapid traverse, spindle configuration, tool magazine capacity, CNC control and available configuration options.
| Parameter | Specification |
|---|---|
| X-axis travel | 2000/3000/4000/5000 ... 30.000 mm |
| Y-axis travel | 3000 mm |
| Z-axis travel | 1250 mm (optional 1500 mm) |
| Max. rapid traverse of X/Y/Z-axis | 150 / 150 / 100 m/min |
| Max. speed of A/C-axis | 50 / 50 rpm |
| Repeatability of X/Y/Z-axis (VDI3441) | ≤ 0.01 mm |
| AC swivel head torque of A/C-axis | 440 / 685 Nm; 1470 / 1560 Nm |
| AC swivel head clamping torque of A/C-axis | 1900 / 2000 Nm; 3880 / 4000 Nm |
| Rotary positioning accuracy of A/C-axis | 8″ / 5″ |
| Rotary repeatability of A/C-axis | 6″ / 3″ |
| Spindle power (S1/S6) | 25 / 37.5 kW; 42 / 50 kW; 57 / 68 kW |
| Spindle torque (S1/S6) | 35.1 / 52.6 Nm; 66.9 / 83.8 Nm; 55 / 65 Nm |
| Spindle max. speed | 20,000 rpm; 24,000 rpm; 24,000 rpm |
| Tool holder | HSK-A63 |
| B-axis worktable rotation angle | ±180° |
| B-axis worktable applicable dimensions | 2100 × 1400 mm (customizable) |
| B-axis worktable clamping torque | 4400 Nm |
| B-axis worktable max. load | 2 t |
| Square worktable dimension | Customizable |
| Square worktable fastening | Threaded holes / T-slots |
| Square worktable max. load | 5 t/m² |
Full GMB-B Series brochure.
Download the official GMB-B Series brochure with detailed information about ultra-high-speed gantry machining, CFRP lightweight structure, customer values, applications and technical configuration.
Impressions from the GMB-B Series in high-speed gantry machining contexts.
This gallery presents a mixed visual selection from the GMB-B Series, including machine views, machining areas, CFRP structure details and application-related impressions. The images are not separated by configuration and provide a broader impression of the series as a whole.
Related machines in this family.
The Phantom Family includes gantry machining concepts for different large-part manufacturing priorities. While the GMB-B Series focuses on ultra-high-speed production, the GMB-G Series is designed for ultra-high-precision machining in large working ranges.
5-Axis Ultra-High-Precision Gantry Machining Center
Ultra-high-precision gantry machining solution for aerospace components, automotive body panel molds, semiconductor parts and rail transportation molds.
Need the right GMB-B configuration?
Talk to TOPNC about component size, material, cycle time targets, automation requirements and machining strategy. Based on your production goals, we can help identify the right GMB-B concept for your manufacturing environment.