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Help CenterZD50 Ball Mill Gearbox With 1800 Nm Output Torque and Forged Steel Gears
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Jiangsu Manqi Machinery Co., Ltd., established in 2017 and located in Suzhou, Jiangsu, China, is a professional manufacturer specializing in high-quality gearboxes for industrial applications. Our ZD50 Ball Mill Gearbox is engineered to deliver robust performance in demanding grinding environments. With an output torque of 1800 Nm and forged steel gears, this gearbox ensures reliable power transmission, extended service life, and reduced maintenance costs. Whether you are upgrading an existing mill or building a new system, the ZD50 is a cost-effective solution trusted by clients in Eastern Europe, Southeast Asia, Africa, and South Asia.
Our factory spans 10,000 to 30,000 square meters, and we maintain strict quality control from raw material selection to final assembly. The ZD50 gearbox is ideal for ball mills used in mining, cement, and chemical industries, where continuous operation under heavy loads is critical. Below you will find detailed technical specifications and key advantages that set this product apart.
Technical Specifications
| Model | ZD50 |
| Output Torque | 1800 Nm |
| Gear Material | High-quality forged steel (20CrMnTi equivalent) |
| Input Speed | Up to 1500 RPM |
| Reduction Ratio | Customizable (e.g., 10:1, 20:1, etc.) |
| Lubrication | Oil bath standard; forced lubrication optional |
| Weight | Approximately 800 kg (varies with ratio) |
| Applicable Mill Size | For ball mills with power up to 30 kW |
Key Features & Benefits
- Forged Steel Gears: Our gears are made from forged alloy steel, heat-treated and precision-ground to ensure high strength, wear resistance, and low noise during operation. This results in a longer gear life compared to cast gears.
- 1800 Nm High Torque Capacity: The ZD50 delivers substantial torque to handle heavy ball mill loads, ensuring consistent grinding efficiency even under fluctuating material feed.
- Compact & Robust Design: The gearbox housing is made of high-strength cast iron, providing excellent rigidity and vibration damping. Its compact footprint saves installation space.
- Flexible Input/Output Configuration: Available with various input shaft options (motor flange or pulley) and output shaft arrangements to match your existing mill setup.
- Easy Maintenance: Designed with convenient oil drain and fill ports, and inspection covers for quick gear condition checks. Standard oil bath lubrication reduces routine maintenance needs.
- Custom Reduction Ratios: We offer a wide range of reduction ratios to match the required mill speed. Contact our engineers for tailored solutions.
- Cost-Effective Performance: As a direct manufacturer with competitive pricing, Jiangsu Manqi offers an excellent balance of quality and affordability. Our gearboxes are used in many ball mill applications across emerging markets.
Quality Control & Manufacturing Process
Every ZD50 gearbox undergoes rigorous testing before shipment, including:
- Material analysis of forged steel gears (spectrometer check)
- Heat treatment hardness testing (HRC 58–62 on gear tooth surface)
- Gear tooth profile measurement for accuracy
- No-load and loaded running test (vibration, temperature, noise)
- Seal leakage detection and oil pressure test
Application Fields
Our ZD50 gearbox is widely used in:
- Ball mills for mineral processing (gold, copper, iron ore, etc.)
- Cement clinker grinding mills
- Power plant coal pulverizers
- Chemical industry wet/dry grinding equipment
- Construction material processing lines
Why Choose Jiangsu Manqi Machinery?
As a manufacturer with a dedicated R&D team and an experienced production workforce of 11–50 people, we focus on delivering reliable power transmission solutions. Since 2017, we have exported to Eastern Europe, Southeast Asia, Africa, and South Asia, building strong relationships with clients who value product consistency and after-sales support. Our factory in Suzhou allows us to offer competitive lead times and flexible customization. We also provide technical documentation, installation guidance, and spare parts support for every gearbox shipped.
Trust our proven performance: Many of our customers have been using ZD series gearboxes for over 5 years with only routine maintenance. We invite you to request a quotation or a detailed drawing for your specific mill application.
Contact us today to discuss your ball mill gearbox requirements. Let us help you achieve efficient and reliable grinding operations.
Frequently Asked Questions (FAQ)
Q1: What ball mill sizes is the ZD50 gearbox suitable for?
A: The ZD50 is designed for ball mills with driving power up to approximately 30 kW, depending on the reduction ratio and input speed. For larger mills, we offer other ZD series models such as ZD60 or ZD70 with higher torque capacities.
Q2: Can the reduction ratio be customized? What ratios do you offer?
A: Yes, we offer custom reduction ratios. Common standard ratios include 10:1, 12.5:1, 16:1, 20:1, 25:1, and 31.5:1. Please provide your required output speed and input speed, and we will recommend the optimal ratio.
Q3: What kind of gear material is used? Is it durable?
A: We use high-quality forged alloy steel (e.g., 20CrMnTi) which is carburized, quenched, and tempered to achieve a surface hardness of HRC 58–62. This provides excellent wear resistance and bending strength, ensuring a long service life under heavy loads.
Q4: What is the lead time for a standard ZD50 gearbox?
A: For standard specifications, lead time is typically 15–25 working days after order confirmation. Customized versions may require 30–40 working days. We can expedite urgent orders based on stock availability.
Q5: Do you provide installation and maintenance instructions?
A: Yes, each gearbox comes with a detailed user manual covering installation, lubrication, alignment, and periodic maintenance. Our technical team is also available for remote support.
Q6: What lubrication system does the ZD50 use? Is forced lubrication necessary?
A: The standard configuration uses oil bath lubrication, which is sufficient for most applications. For high-speed or continuous heavy-duty operation, we can optionally supply a forced lubrication system with an external oil pump and cooler. Please consult our sales team for your specific working conditions.
Q7: What is your warranty policy?
A: We offer a 12-month warranty from the date of shipment against manufacturing defects. Defective parts will be replaced or repaired free of charge, with the buyer covering shipping costs for return. Extended warranty options are available upon request.
Q8: Can you supply spare parts such as gears and bearings?
A: Yes, we maintain an inventory of common spare parts. Interchangeable gears, bearings, seals, and shafts can be supplied separately for easy field replacement. We recommend ordering spare parts at the time of initial purchase to ensure long-term maintenance support.
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