alloy steel Medium Hardened Helical Vertical Gear Reducer Medium Hardened Vertically Mounted

ZLZ Series Medium-Hardened Helical Gear Vertical Reducer medium-hardened, vertically mounted

I. Product Introduction

The ZLZ series reducer is a medium-hardened, vertically mounted, helical gear reducer. It is an vertical model derived from horizontal reducers like ZLY and ZSY, specifically designed for drive applications requiring vertical input and output. This series employs involute gears that undergo precision machining processes like quenching and grinding, resulting in high load capacity, smooth operation, low noise, and long service life. Its housing features a vertical split structure for easy installation and maintenance, making it an ideal choice for vertical drive systems in various industries.

II. Main Technical Parameters

1. Model Designation: ZLZ XXX - XX - XX (Typically indicates center distance, number of stages, and assembly type).

2. Center Distance (mm): Common sizes include: 100, 112, 125, 140, 160, 180, 200, 224, 250, 280, 315, 355, 400, 450, 500, 560.

3. Number of Stages: Two-stage or Three-stage reduction.

4. Ratio Range (i): Relatively wide range. Two-stage typically 8 ~ 50, Three-stage typically 31.5 ~ 400.

5. Input Power (kW): Covers a range from fractional kW to several hundred kW.

6. Output Torque (N·m): Ranges from several hundred N·m to tens of thousands of N·m.

7. Mounting Position: Vertical mounting, with output shaft facing downward (some designs face upward).

8. Gear Accuracy: High gear precision, typically achieving Grade 6-7 per GB/T 10095.1-2008.

9. Gear Material: Gears are made from high-quality alloy steel (e.g., 20CrMnTi, 42CrMo), treated by case carburizing or surface hardening. Tooth surface hardness reaches HRC 54-60.

10. Efficiency: High single-stage efficiency (>98%), overall efficiency is typically above 94% - 96%.

III. Key Advantages & Features

1. Vertical Structure, Saves Space: Designed specifically for vertical drives.

2. Medium-Hardened Face, High Load Capacity: Gears are heat-treated and precision-finished, offering a combination of high surface hardness and tough core, capable of withstanding moderate shock loads.

3. Smooth Transmission & Low Noise: Gear grinding ensures high meshing accuracy, resulting in smooth operation with low vibration and noise.

4. Good Sealing Performance: The vertical structure often incorporates special designs to prevent lubricant leakage (e.g., high-quality oil seals and sealants), ensuring reliable sealing performance in various environments.

5. High Versatility & Modular Design: High parts commonality with horizontal series like ZLY and ZSY, facilitating production, maintenance, and spare parts procurement.

6. Multiple Assembly Options: Different interfaces and assembly methods can be provided based on customer needs, offering high flexibility.

IV. Primary Application Fields

The ZLZ series vertical reducer is widely used in industrial equipment requiring a vertical drive direction:

• Mixing Equipment: Core drive unit for vertical mixers and reactors in the chemical, food, and pharmaceutical industries.

• Lifting & Conveying Equipment: Head drive for bucket elevators.

• Construction Machinery: Drive for the slewing mechanism of tower cranes.

• Water Conservancy & Hydropower: Lifting drive for gate hoists.

• Environmental Protection Equipment: Drive for vertical agitators and thickeners.

• Metallurgy & Mining: Drives for various vertically installed rolls and conveyors.

• Any application requiring vertical mounting, space savings, and medium to heavy-duty transmission.