Quarter Turn Worm Gearbox with Spur Gear – Actuator Operated

Quarter Turn Worm Gearbox with Spur Gearbox – Actuator Operation

The Quarter Turn Worm Gearbox with Spur Gearbox – Actuator Operation is a heavy-duty, export-quality gearbox designed for electric or pneumatic actuator-driven valve automation where very high torque output is required.

Manufactured by Relekon Automation, this gearbox combines a worm gear stage with a spur gear reduction stage, enabling efficient torque multiplication, smooth actuator operation, and precise quarter-turn valve control.

This configuration is ideal for large-diameter valves, high-pressure systems, and critical automation applications where standard worm gearboxes alone are not sufficient.

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Selection Chart: Quarter Turn Worm Gearbox with Spur Gearbox – Actuator Operation (RAESG Series)

Model	Torque (Nm)	Mech. Adv. (±10%)	Gear Ratio	Turns to Close	ISO 5211 (Valve Side)	ISO 5211 (Actuator Side)	Handwheel (mm)	Weight (kg)
RAESG – W5000	5000	50	90 : 1	66	F16	F12	Ø500	33
RAESG – W5500	5500	65	90 : 1	66	F16, F25	F14	Ø500	45
RAESG – W7000	7000	70	150 : 1	73	F16, F25	F14	Ø600	55
RAESG – W10000	10000	75	300 : 1	80	F25, F30	F14	Ø600	80

Technical Specifications

Parameter	Specification
Operation Type	Actuator Operated
Rotation Angle	90° (Quarter Turn)
Gear Mechanism	Worm Gear + Spur Gear Reduction
Self Locking	Yes
Direction of Operation	Clockwise / Counter-clockwise
Actuator Interface	Electric / Pneumatic
Efficiency	Optimized for actuator-driven operation

Torque Range

Key Features

Dual-stage worm + spur gearbox for very high torque
Designed for electric and pneumatic actuator operation
Self-locking mechanism prevents back-driving
Smooth torque transmission and accurate valve positioning
Heavy-duty bearings-supported shaft assembly
Grease-lubricated system for extended service life
Marine-grade and severe-duty versions available

Lubrication

Environmental Conditions

Parameter	Rating
Ambient Temperature	-20°C to +80°C
Protection	Weather-resistant coating
Corrosion Protection	Epoxy / Powder Coated (Optional)
Indoor / Outdoor Use	Suitable for both

Applications

Automated Large-Size Ball Valves
High-Torque Butterfly Valves
Plug Valves
Automated Flow & Isolation Systems
Water & Wastewater Treatment Plants
Oil & Gas Pipelines
Chemical & Process Industries
Power Plants & Utilities

Optional Accessories

EXPORT & SUPPLY CAPABILITY

Relekon Automation supplies actuator-operated worm + spur gear valve gearboxes to customers across India, the Middle East (GCC), and European markets, supporting OEM actuator manufacturers, EPC contractors, and system integrators.

Export Highlights

Designed for high-temperature & outdoor GCC installations
Compatible with international valve & actuator standards
Export-grade packaging (wooden crates / pallets on request)
OEM branding & private labeling available
Pre-dispatch inspection & export documentation support

For GCC & Europe automation projects, OEM actuator integration, or bulk supply, contact Relekon Automation – Export Sales Team.

Certified for Quality & Global Trade

We are committed to excellence and international standards. These certifications validate our quality management and authorized trade operations.

ISO 9001:2015 Certified Officially certified by QRO for our Quality Management System. This ensures the highest standards in manufacturing and exporting standard and customized gearboxes, automation valves, and actuators.
Government Authorized Importer-Exporter (IEC) Registered with the Ministry of Commerce & Industry (DGFT), Government of India. This certification authorizes Relekon Automation to engage in seamless international import and export operations.