ZLY Two-Stage Hard Tooth Surface Cylindrical Gear Reducer: Models & Specifications
H1: ZLY Series Two-Stage Gear Reducer — Complete Model and Specification Guide
The ZLY series two-stage cylindrical gear reducer is the undisputed workhorse of heavy-duty industrial power transmission. By utilizing two stages of hardened helical gearing, it strikes the perfect balance between torque multiplication and physical footprint. This guide details the ZLY model range, frame sizes, and technical specifications.
H2:Overview of ZLY series cylindrical gear reducer
The ZLY series is designed to handle medium-to-heavy shock loads over extended duty cycles. With a two-stage design, it achieves nominal ratios from 6.3 to 20, making it the most widely specified gearbox in the ZDY/ZLY/ZSY family for general industrial applications.
H2:ZLY two-stage hard tooth surface reducer model specification table
The ZLY series spans seventeen nominal center distances, from 112 mm to 710 mm. Below is the comprehensive model and specification table:
| Model / Frame Size | Nominal Center Distance (mm) | Nominal Ratio Range (i) | Approximate Input Power Range (kW)* |
|---|---|---|---|
| ZLY 112 – 160 | 112, 125, 140, 160 | 6.3 – 20 | 15 – 120 |
| ZLY 180 – 280 | 180, 200, 224, 250, 280 | 6.3 – 20 | 100 – 600 |
| ZLY 315 – 450 | 315, 355, 400, 450 | 6.3 – 20 | 500 – 2500 |
| ZLY 500 – 710 | 500, 560, 630, 710 | 6.3 – 20 | 2000 – 6000+ |
Optimal Torque Density: Provides massive torque output without the bulk of a three-stage unit.
High Reliability: Hardened and ground gears (HRC 54-62) resist pitting and wear under shock loads.
Modular Design: Components are standardized across the range, simplifying maintenance and spare parts.
Cooling Options: Available with cooling fans, coils, or forced lubrication for high-ambient environments.
H2: Typical Applications for ZLY
The ZLY is the standard choice for sustained torque applications, including:
Belt and chain conveyors (bulk material handling).
Mixers and agitators.
Bucket elevators.
General industrial machinery in mining, cement, and metallurgy.
H2: Get Your ZLY Reducer Sized Correctly
Matching a ZLY gearbox to your motor requires calculating both mechanical power and thermal limits.
Send us your application details—motor kW, input speed, required ratio, and daily operating hours—and our team will provide a full ZLY selection review and quote.