Advance GWK63.71 Marine Gearbox
The speed input range of the Advance GWK63.71 marine gearbox is 300–1000 RPM, with engine input power from 1935 kW to 6450 kW. The reduction ratio range is 2.00–4.11, the transmission capacity is 6.45 kW/RPM, the rated propeller thrust is 710 KN, and the input shaft is opposite to the output shaft.
Advance GWK63.71 marine gearbox consists of transmission shaft, output coupling, input coupling, oil pressure gauge, oil filter, control system, oil pump and other key components.
Advance GWK63.71 marine gearbox offers two types of control systems for customer selection: electric control and pneumatic control. To satisfy diverse matching requirements for various engine brands and models, Advance GWK63.71 marine gearbox supports multiple engine flywheel sizes.
All Advance GWK series marine gearboxes can be supplied with CCS classification certificates. Selected series are available with international classification society certifications at additional cost, mainly including French BV, British LR, American ABS, Japanese NK, Norwegian DNV-GL, Russian RS, Korean KR, Italian RINA and other classification societies.
Advantages Of Advance GWK63.71 Marine Gearbox
Gearbox features novel structure to guarantee reliable operation. Superior design enables more flexible and smooth layout arrangement between the gearbox and engine.
Compact structure, small overall dimension, light weight and favorable maneuverability. The design fully takes convenience of operation and maintenance into consideration.
The gearbox adopts modular combined design. All rotating components are elaborately designed and machined in strict accordance with high standards to reduce fuel consumption and ensure stable operation, which can match most engine models.
1-stage reduction design with parallel input & output shafts and opposite rotation direction. It is equipped with reverse clutch reduction function.
We have professional gearbox engineering team and complete after-sales service, with spare parts available from stock.
Technical Specifications
| Gearbox Model: | GWK63.71 |
| Input Speed: | 300-1000 r / min |
| Power: | 1935-6450 kw |
| Center Distance: | N/A |
| Trans.Capacity: | 6.45 kw/r/min |
| Reduction Ratio: | 2.00-4.11 |
| Rated Thrust: | 710 kN |
| Dimension: | N/A |
| Net Weight: | N/A |
| Lead Time: | 15-30 Working Days |
| Payment Terms: | T/T ,L/C |
Model | Input Speed | Reduction Ratio | Trans. Capacity | Rated Thrust | Net Weight |
| GWK28.30 | 400-1800 r/min | 2.00-4.05 | 0.44 kw/r/min | 80 kN | 1130 kg |
| GWK30.32A | 400-1800 r/min | 1.97-4.00 | 0.57-0.52 kw/r/min | 100 kN | 1300 kg |
| GWK32.35 | 400-1800 r/min | 2.00-4.05 | 0.72 kw/r/min | 120 kN | 2080 kg |
| GWK36.39 | 400-1800 r/min | 2.03-3.95 | 1.02 kw/r/min | 140 kN | 2250 kg |
| GWK36.54 | 400-1800 r/min | 4.46-5.95 | 0.96 kw/r/min | 220 kN | N/A |
| GWK39.41 | 400-1600 r/min | 2.00-3.95 | 1.40 kw/r/min | 175 kN | 2960 kg |
| GWK39.57 | 400-1600 r/min | 4.52-5.95 | 1.29 kw/r/min | 270 kN | N/A |
| GWK42.45 | 400-1600 r/min | 1.97-4.00 | 1.81 kw/r/min | 220 kN | 3630 kg |
| GWK42.63 | 400-1600 r/min | 4.46-5.95 | 1.64 kw/r/min | 290 kN | N/A |
| GWK45.49 | 400-1400 r/min | 2.03-3.95 | 2.23 kw/r/min | 270 kN | 5560 kg |
| GWK45.68 | 400-1400 r/min | 4.50-5.95 | 2.12 kw/r/min | 360 kN | N/A |
| GWK49.54 | 400-1200 r/min | 1.97-3.95 | 3.26 kw/r/min | 290 kN | 7300 kg |
| GWK49.74 | 400-1200 r/min | 4.58-5.95 | 2.83 kw/r/min | 540 kN | N/A |
| GWK52.59 | 400-1200 r/min | 1.97-3.95 | 3.8067 kw/r/min | 300 kN ( with sliding bearing is 360 kN) | 8900 kg |
| GWK52.82 | 400-1200 r/min | 4.58-5.95 | 3.64 kw/r/min | 710 kN | N/A |
| GWK60.66 | 400-1200 r/min | 2.00-3.95 | 5.09 kw/r/min | 450 kN ( with sliding bearing is 540 kN) | 14000 kg |
| GWK60.92 | 400-1200 r/min | 4.52-5.95 | 5.05 kw/r/min | 750 kN | N/A |
| GWK63.71 | 300-1000 r/min | 2.00-4.11 | 6.45 kw/r/min | 710 kN | 17000 kg |
| GWK63.95 | 400-1000 r/min | 4.50-5.95 | 6.0 kw/r/min | 800 kN | N/A |
| GWK66.75 | 350-950 r/min | 1.97-3.95 | 7.48 kw/r/min | 730 kN | 19000 kg |
| GWK66.106 | 400-950 r/min | 4.52-6.05 | 7.20 kw/r/min | 980 kN | N/A |
| GWK70.76 | 300-900 r/min | 1.94-3.95 | 8.15 kw/r/min | 750 kN | 21500 kg |
| GWK70.82 | 300-900 r/min | 1.94-4.25 | 9.15-8.40 kw/r/min | 780 kN | N/A |
| GWK70.111 | 400-900 r/min | 4.58-5.95 | 8.11 kw/r/min | 1200 kN | N/A |
| ——END—— | |||||
Technical Specifications of Advance GWK63.71 Marine Gearbox | |||||
| Model | GWK63.71 | Power(kW) | 1935-6450 | Center Distance(mm) | N/A |
| Input Speed(r/min) | 300-1000 | Reduction Ratio(i) | 2.00 2.50 2.96 3.50 4.11 | Trans. Capacity(kW/rpm) | 6.45 |
| Rated Thrust(kN) | 710 | Net Weight(kg) | N/A | Controls | N/A |
| ——END—— | |||||
- The Marine gearbox has the function of reverse, clutch, deceleration and the thrust of the propeller, which is equipped with the main engine to form the Marine power unit.
- The “transfer capacity” refers to the ratio of the engine’s rated power to the rated speed, and the reduction ratio corresponds to the transmission capacity, which should be less than the number be offered.
- The gearbox and engine shafting are not allowed to use rigid connection, and the bracket is recommended to be installed on the same rigid support.If the engine is mounted on the elastic support, and the gearbox is installed on the rigid support, please contact the technical department of the company to select the suitable high elastic coupling.
- The weight of the gearbox is approximation, for different reduction ratio the weight is different.
- Due to the technical improvement of the products, the products may change without notice. For any other questions please contact our sales engineer.
ANGLE OF TILT | ||||
| Name | Transverse Direction | Longitudinal Direction | ||
| Heeling | Rolling | Heeling | Rolling | |
| Marine Gearbox | 15° | 22.5° | 5° | 7.5° |
| ——END—— | ||||

Optional Accessories of Advance GWK63.71 Marine Gearbox | |||
| Bell Housing | 195C | Input Coupling | 1. Highly Flexible Coupling |
| / | 2. Toothed Input Coupling | ||
| Direction of Input Shaft Rotation | 1. Anti-clockwise (Facing the Output End) | VDO | Gearbox Pressure Visible on Bridge |
| 2. Clockwise (Facing the Output End) | |||
| Alarm Device | 1. Temperature | Control System | 1. Mechanical |
| 2. Working Pressure | 2. Electrical | ||
| 3. Lubricating Oil Pressure | 3. Pneumatical | ||
| Gauge | Oil Temperature | ||
Modifiable Components of Advance GWK63.71 Marine Gearbox | |||
| Special Reduction Ratio | According to Customer’s Special Requirements | Replacement of Imported Bearing | 1. Stronger Endurance |
| 2. Longer Service Life | |||
| 3. Higher Limit Speed | |||
| PTO | Power Take Off | Output Shaft Coupling | Based on Customers data to produce |
| ——END—— | |||

Marine Gearboxs Conventional Wearing Parts | |||
| External disc | Internal disc | Sealing | Piston ring |
| Gasket | Rubber sealing | Thrust plate | Filter |
| Coil type filter | Packing | O ring | Input shaft assembly |
| Transmission shaft assemby | Output shaft assembly | Hydraulic control system | |
| ——END—— | |||
![]() | DCEC Marine Main Engine | ![]() | DCEC Marine Auxiliary Engine |
| CCEC Marine Main Engine | CCEC Marine Auxiliary Engine | ||
| Deutz Marine Main Engine | Deutz Marine Auxiliary Engine | ||
| Weichai Marine Main Engine | Weichai Marine Auxiliary Engine | ||
![]() | Medium-Low Duty Marine Gearbox | ![]() | PSP Marine Propeller |
| Medium-Heavy Duty Marine Gearbox | FSP Marine Propeller | ||
| Light Duty & High Speed Marine Gearbox | FBP|DSP Marine Propeller | ||
| GW Series Marine Gearbox | ISP Marine Propeller | ||
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| CCEC Marine Generator Set | CDDY SeaMac Control Lever | ||
| Deutz Marine Generator Set | CJRZ SeaMac Control Lever | ||
| Weichai Marine Generator Set | CDRZ SeaMac Control Lever |
Note: All Above Data are Just for Reference, All Data Might Change Without Notices or Updates, Please Contact Our Sales Team to Confirm All Details Via WhatsApp or Email.

Engine Sale Manual

Installation Drawing

Installation Manual

Operation Manual

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