Motor-driven rotary table DZDH-255-200-160-253-A26-A

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Overview
The DZDH-255-200-160-253-A26-A rotary table is designed for machining-centre fourth-axis and rotary machining operations requiring intermittent high torque and robust clamping. Rated continuous torque is 253 Nm, peak torque 748 Nm. The unit features a hollow-bore design and supports tailstock assistance for demanding fixtures; allowable moment load is 1000 Nm and protection rating is IP67.

Key features

• Continuous torque: 253 Nm
• Peak torque: 748 Nm
• Clamp torque: 500 Nm with 0.5–0.6 MPa clamp air pressure
• Rated and maximum speed: 200 rpm
• Hollow-bore design for pass-through tooling and cabling
• High-precision positioning: grating ±10 s; time grating ±3 s; repeatability (bidirectional) grating ±2 s; time grating ±1 s
• Protection rating IP67 for coolant and chip resistance
• Encoder options: Mitsubishi (optional), Fanuc, Siemens, BiSS-C
• Wear-free transmission concept for reduced maintenance compared with worm-gear designs

Technical data
Model: DZDH-255-200-160-253-A26-A
Rated speed: 200 rpm
Max. speed: 200 rpm
Rated torque: 253 Nm (continuous)
Peak torque: 748 Nm
Rated current: 17.5 A
Max current: 63 A
Motor poles: 30
Rated voltage: 220 V
Clamp torque: 500 Nm
Clamp air pressure: 0.5–0.6 MPa
Positioning accuracy: Grating ±10 s; Time grating ±3 s
Bidirectional repeatability: Grating ±2 s; Time grating ±1 s
Protection rating: IP67
Encoder type: Mitsubishi (optional), Fanuc, Siemens, BiSS-C
Allowable load: 100 kg (150 kg with tail seat)
Allowable workpiece inertia: 3 kg·m²
Allowable moment load: 1000 Nm

Applications

• Fourth-axis on machining centres for multi-face and index machining
• High-torque intermittent cutting and heavy-duty grooving operations
• Fixtures requiring tailstock support for long or large-diameter parts
• Rotary indexing and automated machining cells with pass-through tooling

Options & accessories

• Encoder choices: Mitsubishi (optional), Fanuc, Siemens, BiSS-C
• Tailstock / tail seat for additional support
• Custom flange and mounting adapters
• Vacuum or hydraulic clamp interfaces (on request)

Ordering information
Standard designation: DZDH-255-200-160-253-A26-A. Specify required encoder type, tailstock option and mounting interface when ordering. Refer to technical drawings for flange dimensions and installation clearances.