Precision Planetary Reducers — Factory Direct
15+ series covering standard to ultra-precision. Frame sizes 42–330 mm, ratios from 3:1 to 512:1. One source for all your planetary gearbox needs — backed by over a decade of Chinese manufacturing excellence.
Common Challenges in Reducer Sourcing
Low-cost suppliers cut corners on gear grinding and heat treatment, sacrificing backlash consistency and service life.
Need a non-standard ratio, shaft size, or mounting? Many suppliers quote 8–12 weeks for custom configurations.
Without in-house application engineering, selecting the right frame size, ratio, and backlash grade is hit-or-miss.
When quality varies between production runs, your assembly line suffers — and so does your reputation.
The HouZai Advantage
High Precision series achieves <3 arcmin single-stage backlash, making it ideal for servo-driven positioning in robotics, CNC, and automated storage — performance that rivals premium brands at a fraction of the cost.
From compact PLF042 (42 mm) to heavy-duty PLX330 (330 mm), inline or right-angle, round or square flange. Ratios from 3:1 to 512:1. You name it — we stock it or build it.
Custom shaft dimensions, special ratios, tailored mounting interfaces — no job is too small. Standard models ship in 7–15 days; custom orders in 20–30 days. Free samples available.
Complete Reducer Portfolio
Whether you need a cost-effective standard reducer for AGV drives or a high-precision helical gearbox for robotic arms — we have the right solution.
Economic-grade straight-gear planetary gearboxes for general automation, AGVs, packaging, and material handling.
| Series | Type | Frame Sizes (mm) | Ratio Range | Max Torque | Backlash |
|---|---|---|---|---|---|
| PLE | Inline, Round Flange | 70 / 90 / 120 / 160 | 3:1 – 512:1 | 900 Nm | 6–8 arcmin |
| PLF | Inline, Square Flange | 42 / 60 / 90 / 120 / 160 | 3:1 – 512:1 | 900 Nm | 6–8 arcmin |
| PLFK | Right-Angle, Square Flange | 60 / 90 / 120 / 160 | 3:1 – 512:1 | — | 8–10 arcmin |
| PLX | Inline, Large Frame | 142 / 190 / 242 / 285 / 330 | 3:1 – 512:1 | — | — |
| ZPLE | Right-Angle, Round Flange | 60 / 90 / 120 / 160 | 3:1 – 512:1 | — | 8–10 arcmin |
| ZPLF | Right-Angle, Square Flange | 60 / 90 / 120 / 160 | 3:1 – 512:1 | — | 8–10 arcmin |
| ZPT | Right-Angle | 70 / 90 / 110 / 140 | — | — | — |
Premium helical planetary gearboxes with <3 arcmin backlash for demanding positioning, robotics, and precision machining applications.
| Series | Type | Frame Sizes (mm) | Ratio Range | Max Torque | Backlash |
|---|---|---|---|---|---|
| AF | Inline, Helical | 60 / 90 / 115 / 140 / 180 / 220 | 3:1 – 100:1 | 2000 Nm | <3 arcmin |
| AGH | Inline, Helical | 90 / 110 / 140 / 200 / AH064 | 3:1 – 100:1 | — | <3 arcmin |
| AL | Inline, Helical | 70 / 90 / 120 / 155 / 205 | — | — | <3 arcmin |
| ALF | Inline, Helical | 60 / 90 | — | — | <3 arcmin |
| VLF | Inline, Precision | 78 | — | — | Ultra-precision |
| ZAF | Right-Angle, Helical | 42 / 60 / 90 / 115 / 140 / 180 | 3:1 – 100:1 | — | <3 arcmin |
| ZAGH | Right-Angle, Helical | 90 / 110 / 140 / 200 / ZAH064 | — | — | <3 arcmin |
| ZAL | Right-Angle, Helical | 70 / 90 / 120 / 155 / 205 | — | — | <3 arcmin |
Not sure which series fits your application? Our application engineers can help you match the right reducer to your motor and load requirements.
Proven Across Industries
Strategic frame supplier for the global leader in complete lithium battery production lines — our precision planetary reducers power five core product lines, from coating and winding to perovskite PV coating and hydrogen fuel cell stacking.
Framework supply partner for China’s leading industrial robot maker — covering heavy-duty spot-welding robots, palletizing and material-handling robots, collaborative robots, and 7th-axis external travel units.
Certified & Patented
National high-tech enterprise with ISO 9001, CE, RoHS compliance and 116 registered patents covering utility models and industrial designs.
Quality You Can Measure
How It Works
Tell us your application, ratio, torque, and mounting needs via the form below or email.
Our engineers analyze your specs and recommend the optimal series and configuration — same business day.
Competitive pricing quote within 24 hours. Free samples available for qualified projects.
Standard models ship in 7–15 days. Custom configurations delivered in 20–30 days with full QC documentation.
Ready to Get Started?
Send us your application requirements — torque, ratio, frame size, and mounting needs. Our technical team will provide a customized recommendation and competitive quote within 24 hours.
