Worm Gear Box
Worm Gear Box
SDTORK SD-WG Series Worm Gear Boxes are heavy-duty, precision-engineered gear units designed for high-torque quarter-turn and full-turn valve automation applications.
These gear boxes are specifically developed for operating Butterfly Valves, Ball Valves, Plug Valves, and Dampers where 90° rotation or full-turn operation is required.
The SD-WG Series can be operated manually through handwheels or integrated with SDTORK 3000 Series Electric Actuators, forming a powerful and reliable motorized automation solution.
Manufactured with rigid housing construction and grease-filled lifetime lubrication, the SD-WG Series ensures smooth torque transmission, high mechanical stability, and long service life even in demanding industrial environments.
Built as per EN ISO 5210 mounting standards, the gear box allows easy integration with electric actuators and valve assemblies.
Technical Overview
Parameter
Type
Quarter Turn Worm Gear Box
Operation
90° Rotation
Output Torque Range
720 Nm to 300,000 Nm
Enclosure Protection
IP65 (Standard)
Optional Protection
IP67 / IP68
Mounting Flange
As per EN ISO 5210
Valve Attachment
E type as per DIN 3210
Ambient Temperature
-20°C to +80°C
Duty
S2 – 15 min (Open-Close)
Optional Duty
S4 – 25% (Modulating)
Rotation
Clockwise input → Clockwise output
Finish
RAL 5021 (Custom colors on request)
Industries Served:
Key Features
- Rigid high-strength housing design
- Grease-filled for lifetime lubrication
- Suitable for any mounting position
- High torsional load capacity
- Motorized operation compatibility
- Special reduction ratios available on request
- Designed for heavy industrial torque applications
Why Choose ?
- High torque capacity up to 200,000 Nm
- ISO-compliant mounting interface
- Suitable for extreme industrial conditions
- Compatible with manual and electric operation
- Long service life with minimal maintenance
- Engineered for heavy-duty valve automation
Applications
Power Plants
Cement Industry
Steel Plants
Oil & Gas
Water & Wastewater
Chemical Processing
Marine & Offshore
Process Automation