Helical-worm Reduction Box
Helical-worm Reduction Box


Helical-worm box

right angle gearbox, screw conveyor gearbox, worm gear speed rducer, helical-worm gear units, reduction gearbox

®Type Designation(with no motor)

Example: GS(AF)77-52.07-M2-Ø300-270°-3
G:Guomao Reducer Group
S: S series helical-worm gear motor
(AF): None-shaft output, F-flange output with solid shaft, A-Output hollow shaft type. H-Hollow shaft output with shrink disk AT- Torque-arm mounted (S17...R77)- Combined types
77:Gearbox model number
52.07: Gear reduction ratio
M2: Mounting way
Ø300:External diameter of output flane (if there is a flange)
270°: Terminal box position
3:Position of cable entry

®Parameter Range

Power range: 0.12-55kW
Output speed(r/min): 0.05 - 349
Output Torque(N.M): Top to 6500N.m


Paint Color: Various
Cooling System: Fan cooler
Noise Level: Low type 65-75 Db, Smooth and stable in run
Seals: Nitrile material, dual lipped, double output seals available
Transmission efficiency: the efficiency of single machine is not less than 95%.
Material: Rugged cast iron or ductile housings, hard shafts and gears HRC58-62
Output way:Hollow shaft with keyed connection, shrink disk, splined ,solid shaft etc.
Bearing: China standard. But SKF, FAG, NSK, TIMKEN, NTN, KOYO, C&U is a aviable if need


®Main Application

• Conveyors • Food Machinery • Wastewater Treatment
• Mixers •Coat & Mining • Poultry Plants • Construction Equipment
• Paper Mills •Recycling Machines • Rotary Feeder • Textile Logistics
•Hoist & transport •Harbor & ship building •Harbor & ship building
•Cement & material •Electric power& energy •Coal & Mining •Chemical & recycling

®We will help you

● Providing correct gearbox and combined gearbox to meet your application needs;
● Lowering maintenance cost and lifting operation efficiency;
● Improving production capacity and boosting economic profitability.