Designed for unparalleled durability and adaptability, the WP Series Right Angle Cast Iron Worm Gear Reducer is your ultimate choice for robust motion control. Built from high-strength cast iron, its sturdy housing offers excellent heat management and corrosion resistance, perfect for demanding industrial settings. The 90° right-angle design ensures optimal space utilization, making it an ideal fit for compact machinery, conveyor systems, and automated setups.
At its core is a precisely engineered worm and worm gear set, offering smooth, quiet operation with impressive torque capacity (up to 500 Nm) and versatile reduction ratios from 5:1 to 100:1. The self-locking feature of the worm gear enhances safety by preventing backdriving, crucial for applications demanding positional stability.
What distinguishes the WP Series is its customizability. Select from flange, foot, or shaft-mounted configurations, with optional output shafts (solid/hollow), input adapters (for motors or belts), and IP65-rated seals for dust and water resistance. Tailor your solution with custom ratios, surface treatments (paint/galvanization), and mounting brackets to meet specific project requirements.
Specifically crafted for industries such as manufacturing, mining, and logistics, the WP Series excels in applications like conveyor drives, lifting equipment, and packaging machinery. Every unit is subjected to stringent testing for up to 85% efficiency and reliability, and comes with a reassuring 2-year warranty.
Rely on the WP Series to convert power into precision, where resilience meets adaptability.
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Key Highlights: Robust cast iron construction | Efficient 90° right angle design | Safety-enhancing self-locking | Customizable configurations | High torque capacity | Dependable industrial-grade performance.
Ideal for engineers, OEMs, and maintenance teams seeking bespoke motion solutions.
size |
ratio |
A |
AB |
B |
BB |
CC |
H |
HL |
M |
N |
E |
F |
G |
Z |
input shaft |
output shaft |
(kg) |
HS |
U |
TXV |
LS |
S |
W× |
40 |
|
143 |
87 |
114 |
74 |
40 |
138 |
40 |
90 |
100 |
70 |
80 |
13 |
10 |
25 |
12 |
4×2.5 |
28 |
14 |
5×3 |
4 |
50 |
|
175 |
107 |
150 |
97 |
50 |
173 |
50 |
120 |
140 |
95 |
110 |
15 |
12 |
30 |
12 |
4×2.5 |
40 |
17 |
5×3 |
7 |
60 |
10 15 20 25 30 40 50 60 |
198 |
122 |
168 |
112 |
60 |
204 |
60 |
130 |
150 |
105 |
120 |
20 |
12 |
40 |
15 |
5×3 |
50 |
22 |
6×3.5 |
10 |
70 |
231 |
140 |
194 |
131 |
70 |
236 |
70 |
150 |
190 |
115 |
150 |
20 |
15 |
40 |
18 |
6×3.5 |
60 |
28 |
8×4 |
15 |
80 |
261 |
160 |
214 |
142 |
80 |
268 |
80 |
170 |
220 |
135 |
180 |
20 |
15 |
50 |
22 |
6×3.5 |
65 |
32 |
10×5 |
20 |
100 |
322 |
190 |
254 |
169 |
100 |
329 |
100 |
190 |
270 |
155 |
220 |
25 |
15 |
50 |
25 |
8×4 |
75 |
38 |
10×5 |
35 |
120 |
381 |
229 |
282 |
190 |
120 |
430 |
120 |
230 |
320 |
180 |
260 |
30 |
18 |
65 |
30 |
8×4 |
85 |
45 |
14×5.5 |
60 |
135 |
433 |
260 |
317 |
210 |
135 |
480 |
135 |
250 |
350 |
200 |
290 |
30 |
18 |
75 |
35 |
10×5 |
95 |
55 |
16×6 |
80 |
155 |
504 |
302 |
382 |
252 |
155 |
531 |
135 |
275 |
390 |
220 |
320 |
35 |
21 |
85 |
40 |
12×5 |
110 |
60 |
18×7 |
110 |
175 |
545 |
325 |
402 |
262 |
175 |
600 |
160 |
310 |
430 |
250 |
350 |
40 |
21 |
85 |
45 |
14×5.5 |
110 |
65 |
18×7 |
150 |
200 |
587 |
350 |
467 |
305 |
200 |
667 |
175 |
360 |
480 |
290 |
390 |
40 |
24 |
95 |
50 |
14×5.5 |
125 |
70 |
20×7.5 |
215 |
250 |
|
705 |
420 |
552 |
360 |
250 |
800 |
200 |
460 |
560 |
380 |
480 |
45 |
28 |
110 |
60 |
18×7 |
155 |
90 |
25×9 |
360 |
Installation Instructions


Specializing in cycloidal gear reducer manufacturing, Changzhou Changyulong Reducer Co., Ltd, boasts years of expertise. Our production is guided by a comprehensive management system and adheres strictly to JB298281 ministry standards. Our products are endorsed by the International Provincial Bureau of standards for their quality, offering modern cycloidal gear solutions.
Our innovative cycloidal pinwheel reducers utilize the planetary transmission principle with cycloidal pinwheel tooth meshing. Widely employed across industries like textile, light industry food, metallurgy, mining, petrochemical, lifting, transportation, and construction, these devices enhance drive systems and speed regulation.
Exemplifying top-notch quality and reliable performance, our cycloidal reducers are available in a variety of specifications at competitive prices. Adhering to our motto of 'sincerity and credibility,' we prioritize quality and customer satisfaction. Our products deliver significant technical and economic benefits, earning acclaim across diverse sectors.

1. How do I choose the right WP Series reducer for my application?
Start by identifying your torque requirement (up to 500 Nm), reduction ratio (5:1-100:1), and mounting style (foot/flange/shaft). Consider environmental factors: IP65 seals protect against dust/water, while cast iron housing suits high-temperature or corrosive settings. For vertical/horizontal setups, our 90° right-angle design optimizes space - share your CAD drawings for custom mounting brackets!
2. Does the WP Series support self-locking?
Yes! The worm gear's geometry prevents backdriving at ratios ≥10:1, ideal for lifts, conveyors, or static loads. Note: Self-locking is torque-dependent - consult our engineers for high-load scenarios.
3. How do I install the reducer?
Ensure alignment with the motor/output shaft (≤0.05mm ). For hollow-shaft models, use the supplied key and clamping collar. Avoid over-tightening mounting bolts - torque specs are listed in the manual. Pro tip: Run it idle for 30 minutes post-install to check for noise/vibration.
4. What maintenance does it require?
Lubrication is key! Use EP150-220 gear oil (replace every 2,000 hours or annually). Check seals for leaks and housing temperature (≤80°C during operation). No greasing needed - the bath-lubricated design minimizes downtime.
5. Can I customize the output shaft or housing?
Absolutely! Choose solid/hollow shafts (metric/SAE), flange sizes, or add B5/B14 motor adapters. We offer custom paint (RAL colors), galvanization, and even flange drilling patterns - lead time is 2-4 weeks for bespoke orders.
6. Why is the noise level higher than helical reducers?
Worm gears inherently produce more noise (75-85 dB) due to sliding contact. For quiet operation (≤70 dB), opt for our WP-Silent variant with precision-ground gears - ideal for food packaging or medical equipment.
7. What's the warranty?
2 years for defects in materials/workmanship, excluding wear parts (seals, oil). Register your product online for extended coverage.
8. Can it run continuously at 100% load?
Yes, but monitor temperature! The cast iron housing dissipates heat efficiently, but ambient temps >40°C may require a cooling fan (available as an accessory).
9. How to troubleshoot overheating?
First, check oil level (1/3-1/2 housing height). If oil is black/gritty, replace it. Ensure proper ventilation - blocked cooling fins raise temps. Still hot? Contact us - we'll audit your load calculations.