EP-350 CNC 6-Axis Vertical Hobbing Machine

High-Rigidity Heavy-Duty Machining Bed

The EP-350 bed structure is engineered for the sustained cutting forces of M8 gear production — elevated radial hob loads, high tangential table forces, and extended axial passes across large face widths. The heavy casting and reinforced column minimise structural deflection that would translate directly into tooth lead error at large module.

Large-Diameter Direct-Drive Rotary Table

C-axis direct-drive rotary table with clamping diameter of Phi 260mm to Phi 300mm (configurable), delivering 900Nm to 1000Nm drive torque. The large table diameter provides the support area needed for Phi 350mm gear blanks without custom clamping fixtures in most standard applications.

High-Torque Roller Hob Spindle

The B-axis roller hob spindle delivers the torque and rigidity needed for M8 production at up to 1000rpm. Maximum hob size of Phi 150mm x 220mm covers standard M8 hob dimensions, and the 180mm hob shift travel allows productive radial and tangential shift strategies to maximise hob life on long production runs.

±45° Helical Gear Capability

Full ±45° helix angle range via the A-axis electronic gearbox eliminates the need for physical change gears across all standard helical gear geometries in the EP-350’s capacity range — from low-helix industrial gearbox gears to higher-helix construction equipment pinions.

Expanded Axial Travel

240mm axial travel (150mm to 390mm from table) covers the face widths of large industrial gearbox and wind turbine auxiliary gears without workpiece repositioning, supporting single-setup hobbing on components that would require multiple setups on smaller machines.

Shared Platform with EP-200

The EP-350 and EP-200 share the same FANUC 0i-MF Plus control architecture, the same optional accessory portfolio, and largely the same spare parts inventory. For facilities running both models, this simplifies operator training, maintenance scheduling, and capital spare parts holding.

Standard Equipment

• B/C axis direct-drive motors with rotation encoders
• Hydraulic tailstock
• Machine body cleaning and mixing device
• Tooling pressure regulator
• Main spindle motor backup protection
• Scraper-type chip conveyor system
• Internal circulation cooling device
• Oil-mist centrifugal collector
• Hydraulic system
• Automatic lubrication system
• Pneumatic device
• Control cabinet with air conditioning
• Three-colour indicator tower light

Optional Accessories

• Dry cutting function
• Deburring and chamfering device
• Secondary tool-setting device
• Hydraulic tailstock (enhanced)
• Oil-mist electrostatic collector
• High-efficiency dry chip collector
• Magnetic proximity sensing device
• Cutting liquid cooling system
• B-type motor protection module
• Fixture and chuck
• Hob cutting tools
• Rotary mechanical arm
• Automatic loading/unloading system
• X-axis guideway strong clamping system

Wind Turbine Gearbox Components

Planet gears, sun gears, and ring gear segments for wind turbine main gearboxes and auxiliary drives at M6 to M8. The EP-350’s extended table diameter and high C-axis torque handle the large gear blanks of 2MW+ turbine applications.

Heavy Industrial Gearboxes

Output shaft gears and intermediate drive pinions for heavy industrial gearboxes in cement mills, steel rolling lines, and paper machine drives. Extended face widths and high alloy steel materials are addressed by the EP-350’s heavy-duty structure.

Marine Propulsion Auxiliaries

Propeller shaft drive gears, stern tube drive components, and deck machinery gear sets in marine-grade stainless and high-strength alloy steels. The EP-350’s Phi 350mm capacity covers the majority of ship auxiliary drive gear diameters.

Large Construction Equipment

Swing gear sets for large excavators, crawler crane travel drive gears, and pile driver auxiliary drive components at M6 to M8. The high table torque and structural rigidity handle the interrupted cut conditions of these applications.

Denmark — Wind Turbine Component Manufacturer — Chief Process Engineer

“We installed the EP-350 specifically for planet gear production on our 3.6MW turbine gearbox programme — M7 gears in 18CrNiMo7-6, Phi 280mm blanks, face width 260mm. The machine handled the full face width in a single axial pass without the tailstock deflection we experienced on our previous machine at this face width. We are producing DIN 6 accuracy parts consistently and the hob shift strategy has significantly extended our hob life.”

Application: M7 planet gears for 3.6MW turbine | Blank: Phi 280mm, 260mm face width | Accuracy: DIN 6

Brazil — Heavy Industrial Gearbox Manufacturer — Production Engineering Manager

“The EP-350 replaced two older machines in our M6 to M8 output shaft gear production. Single-machine coverage of our full module range, combined with the electronic gearbox, cut our setup time by 70% per variant. The shared control platform with our existing EP-200 also simplified training — our operators were productive on the EP-350 from the first week.”

Application: M6–M8 output shaft gears | Setup time reduction: 70% | Training: Shared control with EP-200

South Korea — Marine Equipment Manufacturer — Manufacturing Director

“We produce M6 auxiliary drive gears for ship deck machinery in duplex stainless steel. The combination of high table torque and the heavy-duty bed structure was what we needed for reliable cutting of duplex material at M6 — previous machines exhibited chatter at the entry of each tooth cut. The EP-350 produces clean, chatter-free cuts consistently across our production volumes.”

Application: M6 marine auxiliary gears in duplex stainless | Problem solved: Chatter on duplex material