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Cast Steel WCB Quarter Turn Gearbox

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Cast Steel WCB Quarter Turn Gearbox

Cast Steel WCB Quarter Turn Gearbox
Cast Steel WCB Quarter Turn Gearbox

Large Image :  Cast Steel WCB Quarter Turn Gearbox

Product Details:
Place of Origin: China
Brand Name: Stard-gears
Certification: IP67
Model Number: SGJ
Payment & Shipping Terms:
Minimum Order Quantity: 1
Price: Negotiable
Packaging Details: Cartons or wooden cases
Delivery Time: 20~30 work days
Payment Terms: D/P, T/T
Supply Ability: 2000 Pcs-6 weeks

Cast Steel WCB Quarter Turn Gearbox

Protection Material: WCB Casing 306、304、LCC、or LCB Casing Protection Class: IP67 Grade Protection
Operating Temperature: -20℃~120℃ Apply: Gas,oil,chemical Plants And Nuclear Power Plants
High Light:

multi stage gear operator


butterfly valve gearbox


WCB Casing 306 Quarter Turn Gearbox



Quarter Turn Gearbox Cast Steel WCB IP67 grade protection apply to -20℃~120℃


SGJ series partial-turn gear operators

This single-stage gear operator series with cast steel box is widely used in gas, oil, chemical plants, and nuclear power plants and for general industrial applications, with the torque ranging from 1000NM to 5600NM and the speed ratio from 30:1 to 140:1.



Instructions for Installation and Operation

Connect the bottom flange of the gear operator to the upper flange of the valve and slide the valve shaft into the hole on the worm gear. Tighten the flange bolt. The valve can be closed by turning the hand-wheel clockwise and opened by turning the hand-wheel counterclockwise. On the upper face of the gear operator, a position indicator and a position marking are mounted, through which the position of switch can be directly observed. The gear operator is also equipped with a mechanical limit screw, which can be adjusted and function to limit the position at the switch extreme position.



Product Features

  • WCB casing
  • Welded hand-wheel (200 or above)
  • IP67 grade protection
  • Nickel-plated input shaft, with more resistance to corrosion
  • Ductile iron worm gear
  • NBR sealing materials
  • Suitable for -20℃ ~ 120℃ working conditions




  • 306, 304, LCC, or LCB casing
  • IP68 grade protection
  • Aluminum-bronze worm gear
  • Stainless steel input shaft
  • For high temperature up to 320℃
  • For low temperature down to -40℃
  • Designed with a lock mechanism
Main Components List
Part name Material
Welding Handwheel Q235A/T700-2006
Cover WCB GB/ T12229-2005
Housing WCB GB/T12229-2005
Worm 45GB/T699-1999
Left end cover WCB GB/T12229-2005
Worm gear QT500-7/GB1348-88
Cover WCB GB/ T12229-2005
Indieator Q235A/T700-2006
Gear wheel 45GB/T699-1999
Gear shaft 45GB/T699-1999
Gear box WCB GB/ T12229-2005



Main Technical Parameter

Model SGJ30 SGJ50 SGJ80 SGJ70 SGJ140
Gear ratio 30:1 50:1 80:1 70:1 140:1
Maximum travel 90° 90° 90° 90° 90°
Limit adjust ±5° ±5° ±5° ±5° ±5°
Rating input 110 100 115 200 145
Rating output 1000 1400 2500 4500 5600
Efficiency 30 28 27 31.8 28


Cast Steel WCB Quarter Turn Gearbox 0


SGJ Series Valve Gearboxes
This single-stage transmission series with cast steel housing is widely used in and for gas, oil, chemical plants, nuclear power facilities, and general industrial-purposes.
- Dimensionally compact, highly efficient, and of one-piece worm design
- Have IP65, IP67, and IP68 protection levels for option
- Optional housing materials including cast steel (WCB), 306, 304, LCC, and LCB



Cast Steel WCB Quarter Turn Gearbox 1


Contact Details

Contact Person: Billy

Tel: +8618862167088

Send your inquiry directly to us (0 / 3000)