Taizhou Sihai Machinery Co., Ltd.has been specialising in the manufacture and export of RV series worm gearboxes and other power transmission products for years, dedicated to provide to our customers good quality products in competitive prices. The main products are RV series worm gear speed reducers, UD series mechanical speed variators, G3 series helical geared motors and the specially designed reducers for polishing machines. Our products are widely used in the mechanical apparatus for foodstuff, ceramics, package, chemical, printing, and plastics, etc.
Guided by the idea, "Quality is the very key.". the company proceeds in strict quality control to all the products, complying with the requirements of ISO9001:2008, and certificated, which has enabled our products to have enjoyed the successful sales, popularity and good reputation among the markets of Europe, Mid-east, and Souteast Asia..
Innovation, good quality, customers' satisfication, and excellent service are the principles of the company. All customers at home and abroad are warmly welcome to contact us and negotiate for mutual business expansion
RV series worm gearbox / speed reducer is a new generation of products developed by our company with combination of advanced technology both at home and abroad. It feature in
1) Aluminium alloy die cast casing for RV 025,030,040,050,063,075,090,light weight and non-rusting;cast iron casing for RV110,130,150.
2) large output torque.
3) stable transmission with lower noise.
4) high gear-radiation efficiency.
5) elegant shape,small volume and durable serving life
6) suitable for omnibearing installation
| Motor power |
Model |
speed ratio |
output speed |
output toruqe |
| 0.12kw 1400rpm |
NMRV050 |
40 |
35rpm |
21.9N.M |
| NMRV050 |
50 |
28rpm |
25.8N.M |
| NMRV050 |
60 |
24rpm |
29.0N.M |
| NMRV050 |
80 |
18rpm |
34.7N.M |
| NMRV050 |
100 |
14rpm |
40.1N.M |
| 0.18kw 1400rpm |
NMRV050 |
40 |
35rpm |
32.0N.M |
| NMRV050 |
50 |
28rpm |
38.0N.M |
| NMRV050 |
60 |
24rpm |
34.0N.M |
| NMRV050 |
80 |
18rpm |
53.0N.M |
| NMRV050 |
100 |
14rpm |
55.0N.M |
| 0.25kw 1400rpm |
NMRV050 |
5 |
280rpm |
6.0N.M |
| NMRV050 |
7.5 |
186rpm |
11.0N.M |
| NMRV050 |
10 |
140rpm |
14.0N.M |
| NMRV050 |
15 |
94rpm |
21.0N.M |
| NMRV050 |
20 |
70rpm |
26.0N.M |
| NMRV050 |
25 |
56rpm |
32.0N.M |
| NMRV050 |
30 |
47rpm |
36.0N.M |
| NMRV050 |
40 |
35rpm |
45.0N.M |
| NMRV050 |
50 |
28rpm |
53.0N.M |
| NMRV050 |
60 |
24rpm |
60.0N.M |
| NMRV050 |
80 |
18rpm |
65.0N.M |
| 0.37kw 1400rpm |
NMRV050 |
5 |
280rpm |
9.0N.M |
| NMRV050 |
7.5 |
186rpm |
16.0N.M |
| NMRV050 |
10 |
140rpm |
21.0N.M |
| NMRV050 |
15 |
94rpm |
31.0N.M |
| NMRV050 |
20 |
70rpm |
39.0N.M |
| NMRV050 |
25 |
56rpm |
47.0N.M |
| NMRV050 |
30 |
47rpm |
54.0N.M |
| NMRV050 |
40 |
35rpm |
66.0N.M |
| NMRV050 |
50 |
28rpm |
73.0N.M |
| 0.55kw 1400rpm |
NMRV050 |
5 |
280rpm |
13.0N.M |
| NMRV050 |
7.5 |
186rpm |
25.0N.M |
| NMRV050 |
10 |
140rpm |
32.0N.M |
| NMRV050 |
15 |
94rpm |
46.0N.M |
| NMRV050 |
20 |
70rpm |
59.0N.M |
| 0.75kw 1400rpm |
NMRV050 |
7.5 |
186rpm |
34.0N.M |
| NMRV050 |
10 |
140rpm |
44.0N.M |
| NMRV050 |
15 |
94rpm |
63.0N.M |
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