Dong Kang M-Tech Co., Ltd.

C.W.F Hamilton & Co., Ltd.

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Dong Kang M-Tech Co., Ltd.

5th floor Youngwon Building, 739-5 Yeoksam-dong Gangnam-gu Seoul
Contact name
Youngmun Cha


The performance of Hamilton Water Jet was proved because Water Jet of over 20000 becomes establishment all over the world since establishment before 50 years.
That current is producing about engine from 200h.p. to 3700h.p. and various model's Jet which can combine engine of 3700h.p.
From ship of low and middle speed to ship of high speed more than about 50Kts, according to property and purpose of ship, can choose Jet's specification.
Advantages of water jet
Navigational possibility in the shallow underwater : absence of underwater appendages
Superior steering : 360˚thrusting ability for stationary
High propulsion efficiency
Decrease of resistance : there is no addition under water, therefore hull resistance is decrease remarkably
Safety : no exposed propeller for complete safety around people in the water
Economic efficiency : additional profit production by decrease of time and human strength cost in repair
Smooth and quiet : low vibration, low noise
Maximum engine life : no possibility of engine overload under any conditions
Simplicity : single packaged module so easy installation
Superior mobility : shorted braking distance
Application range
Ship that operate in area that sea is low
Ship that floating matters operates in much locals
Ship of high speed more than 20 knot
Ship that steering and acceleration performance should be superior
Ship that safety, noise and vibration by a body of revolution becomes an issue
Ship that operate in place that preventive maintenance or business section repair is hard
Ship of rescue boat etc..s that dry running is needed
Application ship
High speed : fast ferries, fast tourist excursion vessels, guardship, patrol boat, rescue boat,...
Steering : fishing boat, towboat, rescue boat, iceboat(ice braker), fire boat, investigation boat, pilot boat
Low noise : passenger ferries, destroyer, fishing boat, tourist excursion vessels, high speed yacht,
Amusement : water-skiing, high speed yacht,
Supply extent
A. Standard
Basic Jet
Main shaft
Front, Journal and Spherical Roller Thrust Bearing
Rear Water Lubricated Cutless Bearing
Face Type Mechanical Shaft Seal
Mainshaft Coupling Flange
Bearing Housing Filler/Breather
Anodes for Catchodic Protection
Transition Duct / Intake Screen Assembly
Installation Kit Set
Steering and Revers Control System
B. Accessory
Drive Shaft (Universal Drive Shaft)
Overflow Preventer
Standard Spare Parts
Use drill handbook and equipment guide

Compare with similar products



   1. Reliability

- construction and establishment is easy by of oil pressure   system are simplicity jet all style

- more than public ship 90% supply

- to Intake block and screen manufacturer supply

   2. Steering

- steerage excels by special employment of Deflector

   3. Easy operation

- because structure of control system is simple, operation    is easy

   4. Easy repair

- main bearing is installed in front of jet so inspection and    repair is easy

- oil pressure pipe establishment inside ship

- Hamilton Jet is not affected by dock yard environment

- Control system doesn't have nearly defect

   5. Maintenance cost

- repair of inboard is possible, business section cost    curtailment

- installation of attendant is simple,
   by a parts low-cost maintenance curtailment

   6. Service ability

- Head office, Busan office, national agency

- have many professional engineers who complete    education of maker

   7. Parts supply

- for 15 years on the basis of sales performance enough    parts possession

   8. Installation

- oil pressure pipe, oil cooler unit sticking

- lubricating oil pump needlessness

- installation is easy by of oil pressure system are    simplicity jet all style

   9. Obstacle rates

- oil pressure system is simple and is sticking inside ship    and lubricating oil does needlessness, therefore the    breakdown rate is less

- in the case of shaft seal damages, there is no effect to    other parts

   10. 건조공정 편이성

- main thrust is support in bottom of a ship

- transom reinforcements needlessness

- to Intake block and screen manufacturer supply

   11. Sea contamination

- No possibility of danger of sea contamination by inboard    installation of oil pressure pipe

   12. Weight

- light



maximum multiple tonnage
(high speed)

maximum multiple tonnage
(low speed)

engine (h.p)

1. 213 SINGLE

3.0 t

6.0 t

less than 350h.p.

2. 241 SINGLE

4.0 t

8.0 t

less than 350h.p.

3. 274 SINGLE

5.0 t

9.0 t

less than 400h.p.

4. 292 SINGLE

6.0 t

10.0 t

less than 500h.p.

5. 322 SINGLE

8.0 t

15.0 t

less than 640h.p.

6. 362 SINGLE

11.0 t

20.0 t

less than 780h.p.

7. 403 SINGLE

15.0 t

30.0 t

less than 1130h.p.


more than 20.0t

more than 30.0t

tess than 4000h.p.
(maximum multiple)

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