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Advance HC1250 Marine Gearbox

Oct 27, 2022 | 1200 Series, 1200 Over 2500kW | 0 comments

Advance HC1250 Marine Gearbox

The speed input range of the Advance HC1250 marine gearbox is 400-1800 RPM, with engine input power from 1530 kW to 1654.2 kW. the center distance is 390 mm, the reduction ratio range is 2.03-3.95 the transmission capacity range is 0.85-0.919 kW/RPM, the rated propeller thrust is 140 KN, and the input shaft is in the train Opposite to the output shaft.

Advance HC1250 marine gearbox is composed of transmission shaft, output coupling, input coupling, oil pressure gauge, oil Filter, control system, oil pump and other important components.

Advance HC1250 marine gearboxes provides three types of control system which are push-pull flexible shaft, electric control and pneumatic control for customers to choose. To meet the different requirement of coupling with different engine brand and models, Advance HC1250 marine gearboxes available in engine flywheel sizes.

All of our Advance 1200 series marine gearbox can provide CCS classification certificate, some of series can provide international classifications with extra costs which mainly including French BV, British LR, American ABS, Japanese NK , Norway DNV-GL, Russia RS, South Korea KR, Italy RINA and other classification societies.

Advantages Of Advance HC1250 Marine Gearbox

  • Advanced design and sophisticated manufacturing to adapt to various harsh working conditions! High-strength parts, strong ability to work under heavy loads.

  • Cylinder block and cylinder head adopt integrated design. The occurrence of engine water leakage and oil leakage is prevented, and the parts are about 40% less than other similar engines. The failure rate is greatly reduced.

  • Using forged steel camshaft and crankshaft, high-strength cylinder block design, multiple parts cast on the cylinder block, high rigidity, high pressure resistance, good reliability, and longer service life.

  • The cylinder bore adopts a platform mesh honing design. The perfect geometric structure effectively prevents oil leakage, and the use of advanced technology such as new piston ring components and gasket crimping and molding reduces oil loss.

  • The five key systems of the electronically controlled engine are all developed by DCEC, and have been applied and verified in different fields around the world to ensure the excellent economy and reliability of the product.

  • By optimizing the control strategy and combining with the actual operating conditions of the equipment, the fuel economy can be further improved.

Technical Specifications

Genset Model:HC1250
Input Speed:400-1800 RPM
Power:1654.2-1530 kW @ 1800 RPM
Center Distance:390 mm
Trans.Capacity:0.919-0.85 kW / RPM
Reduction Ratio:2.03-3.95
Rated Thrust:140 kN
Dimension:1155 mm * 1330 mm * 1435 mm
Net Weight:2900 kg
Lead Time:15-30 Working Days
Payment Terms:T/T ,L/C

Coming soon


Input Speed

Trans. Capacity




HC1200600-1900 RPM0.93 kW/RPM1767 kW @ 1900 RPM1082 mm * 1200 mm * 1130 mmMechanical/Electrical/Pneumatical
HC1200/1600-1900 RPM0.833 kW/RPM1582.7 kW @ 1900 RPM1096 mm * 1260 mm * 1270 mmMechanical/Electrical/Pneumatical
HCT1200600-1900 RPM0.93 kW/RPM1767 kW @ 1900 RPM1188 mm * 1350 mm * 1547 mmMechanical/Electrical/Pneumatical
HCT1200/1600-1900 RPM0.82 kW/RPM1558 kW @ 1900 RPM1056 mm * 1430 mm * 1670 mmMechanical/Electrical/Pneumatical
HC1250400-1800 RPM0.919 kW/RPM1654.2 kW @ 1800 RPM1155 mm * 1330 mm * 1435 mmMechanical/Electrical/Pneumatical
HCT1280/2700-1800 RPM0.93 kW/RPM1674 kW @ 1800 RPM1290 mm * 1520 mm * 1775 mmMechanical/Electrical/Pneumatical

Technical Specifications of Advance HC1250 Marine Gearbox

ModelHC1250Input Speed(r/min)400-1800Center Distance(mm)390
Reduction Ratio(i)2.03 2.48 3.04 3.48Trans.Capacity(kW/rpm)0.919Power(kW)1654.2 kW @ 1800 RPM
3.950.851530 kW @ 1800 RPM
Rated Thrust(kN)140Dimension(mm)1155 * 1330 * 1435Net Weight(kg)2900
FlywheelDepending on Engine Flywheel SizeBell HousingWithoutControlsMechanical/Electrical/Pneumatical
1. 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.
2. 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.
3. 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.
4. The weight of the gearbox is approximation, for different reduction ratio the weight is different.
5. Due to the technical improvement of the products, the products may change without notice. For any other questions please contact our sales engineer.


NameTransverse DirectionLongitudinal Direction
Marine Gearbox15°22.5°7.5°


Optional Accessories of Advance HC1250 Medium-Heavy Duty Marine Gearbox

Bell Housing195CInput Coupling1. Highly Flexible Coupling
/2. Toothed Input Coupling
Direction of Input Shaft Rotation1. Anti-clockwise (Facing the Output End)VDOGearbox Pressure  Visible on Bridge
2. Clockwise (Facing the Output End)
Alarm Device1. TemperatureControl System1. Mechanical
2. Working Pressure2. Electrical
3. Lubricating Oil Pressure3. Pneumatical
Gauge Oil Temperature

Modifiable Components of Advance HC1250 Medium-Heavy Duty Marine Gearbox

Special Reduction RatioAccording to Customer’s Special RequirementsReplacement of Imported Bearing1. Stronger Endurance
2. Longer Service Life
3. Higher Limit Speed
PTOPower Take OffOutput Shaft CouplingBased on Customers data to produce


Marine Gearboxs Conventional Wearing Parts

External discInternal discSealingPiston ring
GasketRubber sealingThrust plateFilter
Coil type filterPackingO ringInput shaft assembly
Transmission shaft assembyOutput shaft assemblyHydraulic control system

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.

The picture of Sale Manual showing the accessories and scopes of supply.

Engine Sale Manual

The picture of Installation Drawing showing the accessories and scopes of supply.

Installation Drawing

The picture of Installation Manual showing the accessories and scopes of supply.

Installation Manual

The picture of Operation Manual showing the accessories and scopes of supply.

Operation Manual

The picture of Engine Parts Catalogue showing the accessories and scopes of supply.

Parts Catalogue

The picture of Test Report and Certifcate showing the accessories and scopes of supply.

Report & Certifcate

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Sales Team

Marine Sales - Mrs. Gazit Wong WhatApp-Icon

Train Sales - Mrs. Gazit Wong WhatApp-Icon

Automotive Sales - Mr. Wells Luo WhatApp-Icon

Industrial Sales - Mrs. Kitty Chen WhatApp-Icon

Generator Sales - Mrs. Erica WhatApp-Icon

Pump Sales - Mrs. Ryen WhatApp-Icon

Spare Parts - Mrs. Nora Chen WhatApp-Icon

Sales Manager - Mrs. Wendy Fu

Ventas españolas - Victoria

Sales Director - Mr. Jasper Lee       WhatApp-Icon

Contact EMAC Now!

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