hzgearbox.com | Hangzhou Fenjin Gearbox Co., Ltd.

About Hangzhou Fenjin Gearbox

Hangzhou Fenjin Gearbox Co., Ltd. is located in Xiaoshan Industrial Zone, Hangzhou City, Zhejiang Province, China. With over 20,000 square meters of manufacturing space, 200 skilled workers, and 30 professional technicians, we are a leading manufacturer of transmission products.

We specialize in designing and producing marine gearboxes, ZLYJ series hard tooth surface speed reducers, special gearboxes, and spare parts. Our products are widely used in marine propulsion, extrusion machinery, and industrial transmission systems.

ISO9001:2000 Certified Manufacturer

20+ Years of Industry Experience

FJ Brand – Authorized Famous Brand in Hangzhou

Our Products

Marine Gearbox 300 Series

High-torque marine transmission system designed for medium to large vessels. Features hardened gears and compact design.

• Model: HZ-300
• Max Input Power: 300HP
• Ratio Range: 2.0 – 5.5
• Certified by Zhejiang Shipping Inspection Center

Marine Gearbox 400 Series

Robust transmission solution for commercial and industrial marine applications. High durability and efficiency.

• Model: HZ-400
• Max Input Power: 400HP
• Ratio Range: 1.8 – 6.0
• ISO9001 Compliant Design

ZLYJ Speed Reducer

Hard tooth surface speed reducer for extruder machinery. Precision-engineered for industrial applications.

• Series: ZLYJ
• Hardened Gears for Long Life
• High Torque Density
• Used in Plastic & Rubber Extrusion

Marine Control System

Integrated control units for marine gearbox operation. Reliable and user-friendly interface.

• Electronic & Mechanical Options
• Compatible with All HZ Series
• Waterproof & Corrosion Resistant
• OEM Customization Available

Marine Control Cable

High-strength control cables for throttle, gear shifting, and remote operation in marine environments.

• Stainless Steel Core
• UV & Saltwater Resistant Jacket
• Lengths: 2m to 15m
• Standard & Custom Connectors

Heat Exchanger

Efficient cooling systems for marine gearboxes and industrial machinery. Prevents overheating and extends service life.

• Copper & Stainless Steel Options
• Compact Design
• High Thermal Efficiency
• Suitable for Fresh & Salt Water

Spare Parts for Gearbox

Genuine replacement parts including gears, bearings, seals, and shafts for all HZ marine gearbox models.

• OEM Quality Components
• Fast Global Shipping
• Compatibility with 06–800 Series
• Bulk Order Discounts

Marine Gearbox 600 Series

Heavy-duty transmission for large vessels and industrial marine propulsion. High reliability under extreme loads.

• Model: HZ-600
• Max Input Power: 600HP
• Multi-Stage Reduction
• CE & China Classification Approved

Marine Gearbox 135A Series

Mid-range gearbox ideal for fishing boats, patrol vessels, and workboats. Balanced performance and cost.

• Model: HZ-135A
• Input Power: 135HP
• Lightweight Aluminum Housing
• Easy Maintenance Design

Custom Gearbox Design

Tailored transmission solutions for special applications. Engineering support and prototyping available.

• OEM & ODM Services
• 3D Modeling & Simulation
• Small to Large Volume Production
• Global Technical Support

Frequently Asked Questions

What marine gearbox models do you offer?

We manufacture a full range of marine gearboxes including 06, 16, 40A, MB170, 120, 135A, 300, 400, 600, and 800 series. All models are designed for durability and high performance in marine environments.

Are your products ISO certified?

Yes, Hangzhou Fenjin Gearbox Co., Ltd. has passed ISO9001:2000 certification. Our quality control systems are based on national and international standards.

Do you provide spare parts?

Yes, we supply genuine spare parts for all our marine gearbox models, including gears, bearings, seals, shafts, and control components. Contact us for part numbers and availability.

Can you customize gearboxes for special applications?

Yes, we offer OEM and ODM services. Our engineering team can design and manufacture custom gearboxes based on your specifications, including special ratios, mounting configurations, and materials.

What is your delivery time?

Standard products are typically shipped within 15–30 days. Custom orders may take 45–60 days depending on complexity. We offer sea, air, and express shipping options worldwide.

Get in Touch

For inquiries, quotes, or technical support, please contact Hangzhou Fenjin Gearbox Co., Ltd. directly through their official channels.

Contact Information

Company: Hangzhou Fenjin Gearbox Co., Ltd.

Phone: 0086-571-82361520

Fax: 0086-571-82361520

Email: [email protected]

Address: Shushan Street, Xiaoshan Industrial Zone, Hangzhou City, Zhejiang Province, China

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