Carefully designed for both durability and versatility, the WP Series Right Angle Cast Iron Worm Gear Reducer stands as a top-tier solution in heavy-duty motion control. Constructed from high-strength cast iron, this stellar product features a robust housing that guarantees superior heat dissipation and outstanding resistance to corrosion. It is crafted to thrive in harsh industrial settings. With its innovative 90° right-angle design, it maximizes space efficiency, effortlessly integrating into compact machinery, conveyor systems, and sophisticated automation setups.
At its heart is a precision-engineered worm and worm gear pair, providing exceptionally smooth, low-noise operations. It boasts a remarkable high torque capacity of up to 500 Nm and offers reduction ratios spanning from 5:1 to 100:1. The worm gear's self-locking capability enhances safety by preventing backdriving, making it indispensable for applications where positional stability is paramount.
What distinguishes the WP Series is its tailored customizability. Select from a variety of configurations such as flange, foot, or shaft-mounted options, complete with optional output shafts (solid/hollow), input adapters (compatible with motors or belts), and IP65-rated seals for superior dust and water resistance. Furthermore, custom ratios, specialized surface treatments like paint or galvanization, and mounting brackets are available to perfectly cater to specific project demands.
Purposefully designed for industries like manufacturing, mining, and logistics, the WP Series shines in applications like conveyor drives, lifting equipment, and packaging machinery. Each unit undergoes stringent testing to ensure remarkable efficiency (reaching up to 85%) and unwavering reliability, all backed by a robust 2-year warranty.
Rely on the WP Series to convert power into precision, where unmatched durability effortlessly blends with remarkable flexibility.
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Key Highlights: Premium cast iron construction | Innovative 90° right-angle design | Self-locking safety mechanism | Tailored configurations available | High torque performance | Unmatched industrial-grade reliability.
Ideal for engineers, OEMs, and maintenance teams in search of 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


Changzhou Changyulong Reducer Co., Ltd stands out as a specialized producer of cycloidal gear reducers, boasting many years of rich production history. Our operation is governed by a comprehensive enterprise management and technical oversight system. Our products are meticulously manufactured in adherence to the JB298281 ministry standards, and their quality has been validated by the International Provincial Bureau of standards. We are committed to delivering modern cycloidal gear solutions.
Our company's cycloidal pinwheel reducers are innovative transmission devices employing the planet gear transmission principle alongside cycloidal pinwheel tooth meshing. They are extensively utilized across various industrial sectors, including textile printing, light industry food, metallurgy, mining, petrochemical, and construction machinery for driving devices and speed modulation.
The cycloidal reducers we produce are known for their outstanding quality, reliable performance, comprehensive specifications, and attractive pricing. Upholding our company ethos of 'sincerity and credibility,' we prioritize quality and customer satisfaction. Our products are trusted by numerous industries for their significant technical and economic benefits.

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.