GFT(W) Winch Speed Reducer
Product Description
GFT(W) Winch Speed Reducer
Product Introduction:
The GFT(W) series hydrostatic winch speed reducer is an ideal driving device for winch mechanisms, delivering excellent performance even in the most severe working environments. It is widely suitable for all kinds of automobiles, crawler cranes, railway cranes, ship cranes, container cranes, and other heavy-duty lifting equipment. Due to its highly compact and modular design, it can be directly mounted inside the cable drum, significantly saving space. The design is also optimized for easy installation and maintenance.
Structure Characteristics:
1.Modular Planetary Design: High-strength planet gears with a modular structure, available in two or three-stage planetary gear drive configurations.
2.Compact & Space-Saving: The compact structure allows for direct integration into the cable drum, minimizing the overall footprint.
3.High Load Capacity: A strong bearing system is engineered to withstand the high tractive forces exerted by the steel cable.
4.Integrated Brake: Features an integrated multiple-disc parking brake for secure holding.
5.Quiet & Efficient: Surface hardened gears and internal gear rings with nitrogen treatment ensure low noise, high efficiency, and longer service life.
6.Easy Maintenance: Designed for easy oil changes and simple installation.
Overall Dimensions:
Technical Specifications:
| Type | Max.pulling force (KN) | Output torque (N ·M) | d1 | d2 | d3 | d4 | d5 | d6 | d7 |
| GFT13T2(W) | 65 | 13000 | 240 | 275 | 300 | 270 | 305 | 335 | 380 |
| GFT17T2(W) | 85 | 17000 | 250 | 290 | 320 | 280 | 305 | 330 | 380 |
| GFT17T3(W) | 85 | 17000 | 250 | 290 | 320 | 280 | 305 | 330 | 380 |
| GFT24T3(W) | 120 | 24000 | 250 | 290 | 320 | 280 | 305 | 330 | 380 |
| GFT36T3(W) | 150 | 36000 | 270 | 310 | 350 | 320 | 350 | 380 | 440 |
| GFT50T3(W) | 190 | 50000 | 330 | 370 | 410 | 360 | 400 | 440 | 500 |
| GFT60T3(W) | 220 | 60000 | 330 | 370 | 410 | 370 | 410 | 450 | 520 |
| GFT80T3(W) | 250 | 80000 | 380 | 430 | 480 | 430 | 480 | 520 | 600 |
| GFT110T3(W) | 320 | 110000 | 420 | 460 | 500 | 460 | 500 | 540 | 640 |
| GFT160T3(W) | 380 | 160000 | 450 | 510 | 560 | 535 | 600 | 650 | 760 |
| GFT220T3(W) | 480 | 220000 | 460 | 600 | 650 | 610 | 680 | 735 | 850 |
| GFT330T3(W) | 650 | 330000 | 580 | 680 | 735 | 660 | 730 | 785 | 925 |
| Notes:in case the clients need the winch speed reducer be provided together with the rack,we could offer the detailed technical drawing for the clients. | |||||||||
Application Conditions:
The working temperature is designed for -20℃ to 40℃. Environmental factors will influence product performance. For example, salt water, salty air, sand, dust, overpressure, heavy vibration, severe impact, environmental temperature, and invasive impurities will influence the functions of the reducer.
Gearbox Design:
This reducer is designed based on our many years of practical experience. In the technical parameters, the maximum output torque refers to Chapter 1, the 3rd edition of FEM (FEM-EU standard). When the maximum output speed is 25 r/min, if load grade L2 and device service time T5 correspond to device working strength M5, then the factor K is 1. When using a different driving device, load grade, or service time, we can determine the corrected factor K from Table 1 and Table 2 below and calculate the maximum output torque with it. Regarding the selection of load grade and service time, customers can consult our technicians.
Higher Torques:
If the customer needs higher torque than that in our catalogue, please contact us for a customized product.
Cable Drum:
We can supply the reducer, shaft support bearing, and cable drum for the winch according to special requirements.
Cable Deflection Angle:
To wrap the cable in the right way, the cable deflection angle (α) must be maintained within the permissible limit. The cable deflection angle should be not less than 0.5°. This can prevent the steel cable from being jammed at the end plate and make sure it moves to the next layer safely. The cable deflection angle should be no more than 1.5°. This can prevent the cable from being separated from the cable groove. When wrapping several layers, it ensures the cable drum is filled up until it reaches the end plate correctly.
Hydraulic Motors:
This reducer can be installed with a constant/variable hydraulic motor through a flange. If necessary, we can also supply the hydraulic motor to the customer.
Brake:
Normally, we supply the reducer with a multi-disc brake at the input terminal. The brake is spring-loaded and hydraulically released. TBr (minimum brake torque) = 1.5 x T1 (input torque). The multi-disc brake cannot be used for dynamic braking. The holding brake torque will differ for different transmission rates. In braking conditions, the oil release circuit cannot have any backpressure.
Lubrication:
Gears and bearings adopt a flooding system for lubrication. The reducer doesn't need maintenance; it just needs an oil change at regular intervals. It is convenient to change the oil. The oil for changing must be the same model and brand as that displayed in our operation manual. Different regular intervals for changing oil are listed in the operation manual. Shaft support bearings need to use lithium grease.