GBC Precision Machinery

CNC Hobbing Machines

From compact 7-axis horizontal machines for small-diameter precision gears to flagship vertical platforms handling module M14, GBC's hobbing machine range covers every gear production scenario.

Select Your Hobbing Machine Model

GBC's CNC gear hobbing machines share a common design philosophy — direct-drive spindles and tables, FANUC 0i-MF Plus control, and rigid Meehanite iron castings — scaled across five capacity classes to match workpiece size, module, and production volume. Each model is available for B2B procurement with factory acceptance testing, commissioning support, and a 12-month parts warranty. Browse the series below or compare key specifications in the quick-reference table further down the page.

GBCTN-100 CNC 7 Axis Hobbing Machine
7-Axis Horizontal
GBCTN-100 Series

High-speed horizontal hobbing for small-diameter gears up to 100 mm diameter and module M3. Inclined-bed casting with direct-drive B/C axes, ideal for automotive pinions, power-tool gears, and precision instrument components.

GBCTN-150 CNC 6 Axis Hobbing Machine
6-Axis Vertical
GBCTN-150 Series

Vertical-column precision hobbing centre for workpieces up to 150 mm and M4 module. Permanent-magnet synchronous direct-drive spindle at 2500 rpm with proactive thermal-deformation compensation for DIN Class 5-6 gears across full production shifts.

GBCTN-200 CNC 6 Axis Hobbing Machine
6-Axis Vertical · Heavy Duty
GBCTN-200 Series

Heavy-duty vertical platform for workpieces up to 200 mm and M6 module. Single-piece Meehanite iron casting, stable rolling hob-head spindle with field-adjustable preload, and 35 KVA power for wind-energy accessories, marine gearboxes, and industrial speed reducers.

GBCTN-350 CNC 6 Axis Hobbing Machine
6-Axis Vertical · Large Diameter
GBCTN-350 Series

Large-bore vertical hobbing for workpieces up to 350 mm and M8 module. The 260-300 mm direct-drive table at 900-1000 Nm torque eliminates worm-table backlash errors, making it the go-to choice for mining, offshore, and construction-machinery gear production.

GBCTN-500 CNC 6 Axis Hobbing Machine
6-Axis Vertical · Flagship
GBCTN-500 Series

Flagship platform for workpieces up to 500 mm and module M14. The 450 mm direct-drive table at 2000 Nm continuous torque, BT#50 spindle, and 40 KVA supply handle wind-turbine main gears, cement-mill drive pinions, and heavy marine gearbox components in a single climb-cut pass.

Why Choose GBC Hobbing Machines?

Every model in the range is backed by factory acceptance testing, a 12-month parts warranty, and FANUC remote diagnostics — giving manufacturers worldwide the confidence to specify GBC machines for critical gear production programmes.

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Direct-Drive Axes

Zero backlash B/C direct-drive on every model — from M3 to M14 module.

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FANUC 0i-MF Plus

Industry-standard CNC with nano-interpolation, Ethernet/DNC, and smart-factory readiness.

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Rigid Castings

Meehanite iron, stress-relief annealed, ground guideways — built for decades of production.

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Global After-Sales

Regional service partners across Europe, Southeast Asia, the Americas, and the Middle East.

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DIN 5-6 Accuracy

Thermal compensation and pre-loaded spindle bearings deliver certified gear accuracy on every shift.

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Automation Ready

Optional gantry robots and auto loading/unloading systems for lights-out production.

Quick-Reference Specification Comparison

Use this table to identify the right model for your workpiece diameter and module range, then follow the link to the full product page for complete axis data, standard and optional configurations, and process application guidance.

Model Axis Config Max. Workpiece OD Max. Module Table Torque Hob Spindle Spindle Taper Main Power Weight Details
GBCTN-100 7-Axis Horizontal 100 mm M3 60 Nm (direct) 4000 / 6000 rpm BT#30 30 KVA 5.0 t View ›
GBCTN-150 6-Axis Vertical 150 mm M4 600 Nm (direct) 2500 rpm BT#40 30 KVA 8.0 t View ›
GBCTN-200 6-Axis Vertical 200 mm M6 900 / 1000 Nm 1000 rpm BT#40 35 KVA 9.5 t View ›
GBCTN-350 6-Axis Vertical 350 mm M8 900 / 1000 Nm 1000 rpm BT#40 35 KVA 10.0 t View ›
GBCTN-500 6-Axis Vertical 500 mm M14 2000 Nm (direct) 500 rpm BT#50 40 KVA 14.0 t View ›

Industries We Serve

GBC hobbing machines are operating on production floors across five continents, machining gears for a wide range of industries. If your sector demands certified gear accuracy, reliable throughput, and long machine service life, the GBCTN series has a proven track record to match. Contact our applications team to discuss your specific workpiece requirements.

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Automotive

Transmission pinions, idler gears, and shaft gears for passenger-car and commercial-vehicle drivetrains.

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Agricultural Machinery

PTO drive gears, combine-harvester final drives, and sprocket-shaft gears for field conditions.

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Wind Energy

Pitch and yaw actuator gears, main shaft pinions, and rotor-bearing drive components.

Marine & Offshore

Thruster reduction gears, azimuth-drive helical sets, and diesel engine gearbox components.

Mining & Bulk Handling

Crusher-drive pinions, conveyor final drives, and mill-drive intermediate gears.

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Construction Equipment

Swing-drive ring gears, travel-motor outputs, and hydraulic motor coupling gears.

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Rail & Heavy Transport

Traction motor pinions, bogie final-drive gears, and locomotive reduction sets.

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Industrial Gearboxes

Parallel-shaft, bevel-helical, and worm-stage gears for cement, aggregate, and process plant drives.

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Oil & Gas

Mud-pump gear sets, compressor drive pinions, and rotary-table ring gears.

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Robotics & Automation

Cycloidal and harmonic-drive components, servo reducer gears, and ultra-low-backlash joint elements.

Frequently Asked Questions

How do I choose between the GBCTN-100 and GBCTN-150? +
The GBCTN-100 is a 7-axis horizontal machine optimised for small-diameter gears up to 100 mm and module M3 — ideal for high-volume automotive or instrument-gear production where cycle time is the priority. The GBCTN-150 is a vertical 6-axis machine with a larger 150 mm workpiece capacity and M4 module rating, and its permanent-magnet synchronous spindle delivers significantly higher torque (S1=115 Nm vs 22 Nm) for medium-duty helical and spur gear cutting in agricultural and industrial gearbox applications. If your blanks are under 100 mm and you need maximum speed, choose the GBCTN-100; for anything in the 100-150 mm range or requiring higher torque, the GBCTN-150 is the right fit. See the specification comparison table above for a side-by-side view.
What is the largest gear that can be hobbed on a GBC machine? +
The GBCTN-500 handles workpieces up to 500 mm outer diameter and module M14. This covers the majority of industrial and energy-sector gear blanks including wind-turbine main shaft pinions, cement-mill drive gears, and heavy marine reduction sets. For gear diameters beyond 500 mm, please contact our applications team to discuss custom solutions.
Are all models compatible with automation and robot loading? +
Yes. Every model in the GBCTN series is pre-wired for optional gantry-robot or rotary-robot-arm integration, and each machine supports FANUC Ethernet/DNC communication for MES connectivity. Auto loading/unloading systems are available as optional accessories on all five models, enabling lights-out production for disc-type workpieces. Contact GBC to discuss the automation configuration that best matches your part family and production volume.
What CNC control system do GBC hobbing machines use? +
All GBCTN models are equipped with the FANUC 0i-MF Plus controller as standard. This industry-standard open-architecture CNC offers nano-interpolation for smooth tooth-flank finishes, a synchronous electronic gearbox for accurate hob-to-table synchronisation, built-in macro programming for spline and worm cycles, DPRNT-based part counting, and full Ethernet/DNC network connectivity. Operator familiarity with FANUC across different machine models significantly reduces training overhead for multi-machine workshops.
What after-sales support and warranty does GBC provide? +
Every GBCTN machine ships with a factory acceptance test (FAT) report, FANUC controller parameter backup disc, and CE conformity declaration for EU markets. The standard warranty covers parts for 12 months from commissioning. GBC provides remote FANUC diagnostic access via secure connection, and regional service partners cover Europe, Southeast Asia, the Americas, and the Middle East for on-site support. A recommended spare-parts list — covering spindle bearings, hydraulic seals, and FANUC drive modules — is included in the machine documentation to support local buffer-stock planning. Contact us to discuss extended service agreements.
What foundation and power supply is required for installation? +
Foundation depth and floor-loading requirements vary by model: the GBCTN-100 requires 300 mm reinforced concrete and weighs 5.0 ton, while the flagship GBCTN-500 needs a 600 mm deep pad and 20-ton crane capacity for a 14.0-ton machine. Power supply ranges from 30 KVA (GBCTN-100 and GBCTN-150) to 40 KVA (GBCTN-500), all three-phase. Compressed air at 0.5-0.7 MPa and a coolant drain point are required on all models. GBC provides a full foundation drawing, anchor-bolt layout, and pre-installation checklist with every order.

Ready to Discuss Your Gear Production Requirements?

GBC offers process feasibility studies, sample-part machining trials, and flexible B2B procurement arrangements for OEM manufacturers, job shops, and turnkey production-cell projects worldwide. Submit your workpiece drawings and our applications engineers will respond within 2 business days.