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Industrial Sumitomo S Series Reduction Helical Worm Boat Gearbox


Quick Details

Applicable Industries:


Gearing Arrangement:


Output Torque:

9 ~19KNM

Input Speed:


Output Speed:


Place of Origin:

Zhejiang, China

Brand Name:





RAL7031 Grey

Housing Material:

Iron Casting


Gear Oil




More than 1 pc


Wooden Case



Motor Connection:

Flange or Direct Connection

Mounting Type:

Foot Mounted or Flange Mounted

Supply Ability

Supply Ability:
1000.0 Piece/Pieces per Month 4weeks

Packaging & Delivery

Packaging Details
standard export packing and wood pallets packing

Online Customization

Product Description

WS series helical -worm gearmotor
WS series have more sizes with a reduced variety of parts Increased power capacity, lower noise and higher efficiency by grinding and modifying gear The all-in-one box provides higher rigidity and higher vibration resistance. More ratios satisfy the need of accurate output speed. Reducers can be supplied for either horizontal or vertical installation in any angles.

1.Specification: WS37~WS97, seven type totally.
2.Input Power: 0.12~22KW (Four-stage motor)
3.Output Torque: 10~4900N•m
4.Transmission ratio: 6.8~11267
5.Various ways of installation: foot mounting, input flange of B5. The foot amounting reducer has two machine-processed foot mounting surfaces. 

Product Name

WS series helical -worm gearmotor


55%~80% (depends on the transmission stage)

Housing material

HT250 high-strength cast iron

Gear material


Surface hardness of gears

HRC58°~62 °

Input / Output shaft material


Machining precision of gears

accurate grinding, 6 Grade

Lubricating oil

Gear oil

Heat treatment

Carburizing and quenching

Brand of bearings

HRB heavy-duty bearing, C&U bearing

Brand of oil seal

NAK or other brand

Noise (MAX)


Temp. rise (MAX)

40 ℃

Temp. rise (Oil)(MAX)

50 ℃



Products Show

Our Sertifications

High quality

Passed the ISO9001:2008 quality system authentication and ROHS authentication.

High quality

Passed the ISO9001:2008 quality system authentication and ROHS authentication.

High quality

passed the test of Ente Certificazione Macchine Srl in ITALY( and got the CE-ATEX certificate on 2nd May 2016.

Our Company

Zhejiang Wuma Reducer Co., LTD. is a company specializing in research, development and production of various speed reducers and variators etc. It is a member of China Speed Reducer and Variator Industrial Association.

Our main products are RV series worm reducer, MB,MBN series variator, WR ,WK ,WF series helical gear reducer, WS series helical-worm gear reducer, WH/WB series high power reducer and WAH series hypoid gear reducer etc.We can also provide customised products.The products have serialized and modularized advantages, and have been widely used in the driving fields and transmission for all types of industries.

Our company has internationally and domestically advanced gear grinders, machining center and gear inspection center, as well as universal tool microscope etc. testing and machining equipmentWe have an annual production capacity of 200,000 sets of reducers.

We manufacture according to the ISO9001:2000 quality control system. In 2001, we obtained self-operating import and export qualification certificate. The products have been widely used all over China and exported to Europe, America, HongKong, Taiwan, outh America and Southeast Asia etc.

Packing & Delivery

1. Special logistics packaging

2. Suitable carton size

3. Shock bubble film


1 Q:What infomation should I tell you to confirm the product?
A: Model/Size, Transmission Ratio, Shaft directions & Order quantity.

2 Q: What if I don't know which one I need?
A:Don't worry, Send as much information as you can, our team will help you find the right one you are looking for.

3 Q:How long should I wait for the feedback after I send the enquiry?
A: Within 12 hours.

4 Q:What is your product warrenty period?
A:We offer one year warrenty since the vessel departure date left China.

5 Q:What industries are your gearboxes being used? 
A:Our gearboxes are widely used in the areas of textile, food processing, beverage, chemical industry, escalator,automatic storage equipment, metallurgy, tabacco, environmental protection, logistics and etc.

If you have another question, pls feel free to contact us as below:

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As one of leading worm reducer manufacturers, suppliers and exporters of mechanical products, We offer worm reducer and many other products.

Please contact us for details.

Mail: [email protected]

Manufacturer supplier exporter of worm reducer.