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The GFB309 is a high-torque planetary gearbox developed for industrial and mobile equipment requiring compact power transmission, multiple reduction ratios and hydraulic motor integration.
With a rated output torque of 18,000 Nm and a maximum output torque of 24,000 Nm, the GFB309 is suitable for heavy-duty transmission applications where reliable torque transfer and flexible installation are required.
The GFB309 is positioned as a replacement gearbox option for equipment using Bonfiglioli 309 or Brevini ED2150 type transmission units. It is designed for applications that require compatible mounting arrangements and comparable transmission functions.
Before replacement, the mounting dimensions, output shaft, input interface, gear ratio, hydraulic motor configuration and operating torque should be checked against the original gearbox.
The planetary transmission is designed to transfer high torque through a compact multi-stage gear arrangement.
The GFB309 supports multiple reduction ratios to accommodate different input speeds and output speed requirements.
The gearbox can be configured with different hydraulic motor options according to the required displacement, input speed and hydraulic system.
The compact gearbox arrangement supports installation in equipment where available mounting space is limited.
Gear ratio, hydraulic motor configuration, brake arrangement and mounting interface can be selected according to the target machine and operating requirements.
The following specifications are based on the GFB309 configuration listed on this page.
| Parameter | GFB309 |
|---|---|
| Model | GFB309 |
| Rated Output Torque | 18,000 Nm |
| Maximum Output Torque | 24,000 Nm |
| 1-Stage Ratio | 4.2 / 5.3 |
| 2-Stage Ratios | 21.8 / 28.2 / 38.6 / 46.7 |
| 3-Stage Ratios | 60.5 / 80.6 / 104.6 / 162.5 |
| Hydraulic Motor Options | A2FM80 / A2FM107 / A2FM125 / A2FM160 / A2FM180 / A6VM80 / A6VM107 / A6VM160 / OMP / OMS / OMT |
| Maximum Brake Torque | 850 Nm |
The technical drawing should be used as a reference for gearbox installation and interface confirmation. Please confirm the actual mounting dimensions before replacement.

Construction machinery
Material handling equipment
Mining machinery
Metallurgical equipment
Port and lifting machinery
Agricultural and specialized mobile equipment
When replacing an existing gearbox, the replacement should be selected according to the machine's mechanical and hydraulic requirements rather than model number alone.
Required output torque
Required reduction ratio
Hydraulic motor displacement and interface
Input and output shaft dimensions
Mounting flange and bolt pattern
Brake requirements
Available installation space
High-torque planetary transmission
Multiple reduction ratios
Multiple hydraulic motor options
Compact transmission arrangement
Suitable for replacement and retrofit applications
Configuration support based on application requirements
Payment: 30% deposit and 70% before shipment. T/T is generally accepted, with other payment terms subject to negotiation.
Delivery: Approximately 20-25 days after receipt of payment, subject to product configuration and order quantity.
Service: 24-hour online support and technical overseas service are available.
The GFB309 is a high-torque planetary gearbox designed for hydraulic and mobile equipment applications requiring compact transmission and high output torque.
The listed GFB309 configuration has a rated output torque of 18,000 Nm and a maximum output torque of 24,000 Nm.
The GFB309 can be offered as a replacement option for applications using a Bonfiglioli 309. Compatibility should be confirmed by comparing mounting dimensions, shaft interfaces, gear ratio, motor configuration and torque requirements.
The GFB309 can be evaluated for Brevini ED2150 replacement applications. Final compatibility depends on the machine interface, torque requirement, ratio and hydraulic motor configuration.
The listed configuration supports A2FM80, A2FM107, A2FM125, A2FM160, A2FM180, A6VM80, A6VM107, A6VM160, OMP, OMS and OMT motor options. Final motor compatibility should be confirmed according to the required hydraulic system.
Configuration can be discussed according to output torque, reduction ratio, hydraulic motor, brake arrangement and mounting requirements.
The minimum order quantity is 1 set.