SUPPLY AND INSTALLATION OF BOAT MOORING COMPONENTS
Kinetic Key Engineering Company was found in
1988 and incorporated
in 1991 in Hong Kong.
Kinetic Key Co. Ltd.
(KKCL) is a
Commercial Diving in Hong
Kong and China (PRC).
KKCL established Production Lines and worked with Manufacturers in mainland China (PRC) to provide full range of Mooring Components (Mooring Buoys, Chains, Swivels, Shackles and Concrete Sinkers etc.) and develop the Non-metal Mooring Buoys included but not limited to
EVA / Polyurea and Fiberglass Module (GRP) filled with hard
Polyurethane (PU), it has been well accepted as more reliable Products for long term operation.
Currently, KKCL is working with
Private Boat Clubs in Hong Kong for upgrading their existing Steel Mooring Systems with the new designed Non-metal Buoys.
Mr. Kin-Kwong Li is
the Director and General Manager of KKCL,
Mr. Li is a British, Chinese and Hong Kong
Registered Marine Engineer and Licensed Commercial Diving Specialist
since 1982 and
1990 respectively. He has involved in a variety of marine
engineering projects both
under water for more than
desire to train quality divers and promote diving related
educations led to the formation of
Hong Kong Institute of Scuba
and Scuba World Club (SWC)
in Hong Kong since 1989,
Scuba World Co. Ltd. (SZSWC)
in Shenzhen, China (PRC) since
As a professional
30 years, Mr. Li
has trained and certified more than
4,000 students including 500
Professional Instructors and Instructor Trainers, and
continue to provide all
levels of training courses to enable you to become the best and
the most respectable
divers and dive leaders in the diving community.
With his sound experiences in marine engineering and commercial
diving, Mr. Li
Expert Witness at the High Court in
to provide expert opinions
and advises on
marine, recreational and commercial diving accidents since
our Company Director
Master in Business
Chartered Manager - Canadian Institute of Business
Administration (C. Mgr., CIBA)
Fellow - Institute of Marine Engineers, Science and
Fellow - Hong Kong Institute of Engineers (FHKIE)
Fellow - Hong Kong Institute of Marine Technology (FHKIMT)
Member - Chinese Society of Naval Architects and Marine Engineers (MCSNAME)
Course Director - National Association of Commercial Diving Specialists (NACDS)
Course Director - National Association of Underwater
Instructor - World Underwater Federation (CMAS)
National Instructor - Chinese Underwater Association (CUA)
National Instructor - Hong Kong Underwater Association (HKUA)
First Aid Instructor Trainer - National Safety Council (NSC)
Aid Instructor Trainer - Diver Alert Networks (DAN)
Trainer - National Association of Underwater Instructors (NAUI)
Rebreather Instructor - Technical Diving International (TDI)
Instructor - Inflatable Rescue Boat (IRB)
Grade 1 Pleasure Vessel Operator Certificate (HK Marine
DESIGN, SUPPLY AND INSTALLATION OF BOAT MOORING SYSTEMS
The weaknesses of the traditional Steel Mooring Buoys are
worn out and bearing of all
pulling forces among the
structure of the Mooring Buoy. In case of aging and/or
collision, the Steel Mooring Buoys
sunk or even
pulled apart during a heavy storm.
Non-metal Mooring Buoys are available in two versions: Middle Shaft Version (Middle Shaft with top and bottom Mooring Rings) and Through Chain Version (The Mooring Buoy with Hollow Structure that allows the Chain to go through). The idea of the Non-metal Mooring Buoys
is to remove the stress (pulling forces) from the
cylindrical body of the
Mooring Buoy, thus, all the pulling forces will be directly taken over by the
middle shaft or
mooring chain and the mooring lines to the Boat, the Mooring Buoy itself
only acts as a floatation unit to support the weight of the mooring
chain and maintain about 50 % stays afloat on the
surface as required.
high technology support and availability of new material nowadays,
the new designed Non-metal Mooring Buoys are either made with high density
Ethylene-co-Vinyl Acetate (EVA) inside and sprayed with several coats of
Polyurea outside, or Fiberglass Module (GRP) with Reinforced Rubber Fender and filled with
(PU) inside. Despite the weight and size of a Non-metal Mooring Buoy is much
less than a Steel Mooring Buoy under
the same requirement, a Non-metal
Mooring Buoy is more long lasting
(about 10 years under normal usage)
and maintenance free for long term operation. It really overcomes most of the previous
problems on the Steel Mooring Buoys
and significantly reduces
the on-going maintenance costs. Colour Choice of Yellow / Green / Red is also available upon request.
There are many choices of HDPE or EVA/Polyurea Buoys available in the market nowadays, it is true that the cylindrical body of a EVA/Polyurea Mooring Buoys will never get rusty and worn out, however, the Mooring Rings and the Middle Shaft that are made in galvanized mild steel may pull apart from the cylindrical body when they become rusty/worn out, and will only last for a few years even under continuous maintenance
. This is the reason why we designed and made all our Non-metal Mooring Buoys with
Stainless Steel Middle Structures and be covered by Polyurea spraying
for maintenance free and long lasting.
Mooring Chain connects the Mooring Buoy to the Concrete Sinker underwater, but most of the Boat Owners did not get what they paid for ! The material used for the Mooring Chains makes a world difference in its pulling strength and durability although they looks the same.
Mooring Chains (Stud Link, AM or Open Link, PM) are made by Forged Steel and are classified into Three Categories (Grade I, II and III), Grade I Chains are slightly cheaper, but
it corrodes much quicker in seawater condition and the pulling strength is 40 % less than the Grade II Chains. Grade II Chains with hot dip galvanized finishing
(Stud or Open Link) are the best choice for Boat Mooring Systems in seawater condition.
KKCL established Production Lines in mainland China (PRC) and is a Professional Supplier for Mooring Components, such as Mooring Buoys, Mooring Chains, Swivels, Shackles and Concrete Sinkers etc., KKCL is more than capable to design, supply and install the full set of Mooring System to meet your Boat requirement. Sample of the Non-metal Mooring Buoy is available at our
Warehouse at Fo Tan, Shatin, HK for your
inspection and hand-on experience upon request.
Boat Mooring Requirements in Hong Kong
The size of a Mooring System is dependent upon the total length of the Boat, the Mooring Chains and Concrete Sinkers to be used will normally be listed in the Permission from the HK Marine Department. The size and the type of Mooring Buoy will not be specified, however, the requirement is the Mooring Buoys should have sufficient buoyancy to support the weight of the Chain at fullest stretch and should be 50 % greater than
the combined weight of the suspended components (i.e.
33 - 50 %
of the Buoy stay afloat on the surface after it has been chained up).
Please take note that higher the Mooring Buoy afloat on the surface, higher the chance of titling sideway that cause the growth of marine barnacles and worn out on the top half of the Mooring Buoy.
Generally, a Boat of total length between 5 - 8 meters, will use Chain size 12 - 18 mm, a Mooring Buoy of 0.6 meter in Diameter will be used; a Boat of total length between 9 - 11 meters will use Chain size 25 - 32 mm, a Mooring Buoy of 0.7 - 0.8 meter in Diameter will be required. A Boat of total length between 11 - 26 meters will use Chain size 32 - 40 mm, a Mooring Buoy of 1.0 meter in Diameter will be required; a Boat of total length between 24 - 41 meters will use Chain size 40 - 45 mm, a Mooring Buoy of 1.1 - 1.2 meters in Diameter will be required. A Boat of total length
42 - 56 meters will use Chain size
50 mm, a Mooring Buoy of
1.3 meters in Diameter will be required. The entire cylindrical body of a Non-metal Mooring Buoy is very light-weight (buoyant), never get rusty and worn out, no painting is required, it may last for 10 years or more under normal usage without extensive care.
With our fully equipped Production Lines in mainland China (PRC), the cost of making a Non-metal Mooring Buoy with
Stainless Steel Middle Structures is very compatible to those Steel Mooring Buoys that needed to be filled with Styrofoam inside and fully
molded with Fiberglass outside, but the durability and maintenance free is much better.
Non-metal Mooring Buoys Vs
Traditional Steel Mooring
Non-metal Mooring Buoys
Traditional Steel Mooring Buoys
Rusty and Worn Out
A Non-Metal Mooring
Buoy either made with
EVA / Polyurea or
Fiberglass Module (GRP) filled with
hard Polyurethane (PU) inside, will
never get rusty and
worn out, the top and bottom
Mooring Rings and/or its
Middle Structure are made with Stainless Steel, no painting is
the chance of getting rusty and worn out is much less than normal
A Steel Mooring Buoy and its top and bottom Mooring Rings will require
continuous maintenance including removal,
repairing, anti-rust / anti-fouling
painting and replacement.
Bearing of all pulling forces directly by the
middle shaft or
and the mooring lines to the Boat. The Mooring
Buoy itself only acts as a
floatation unit to support the
weight of the
mooring chain and maintain about
50 % stays
afloat on the surface as required.
Bearing of all pulling forces among the
of the Mooring Buoy. In case of aging or lack of
maintenance, it may be creaked,
holed, sunk or pulled apart during a heavy storm.
body of a Non-metal Mooring
Buoy that is
soft, light weight and
high abrasive material, in case of collision, the impact forces will be much reduced and made no damage to the Boat.
Damages to the Mooring
Buoy and the
Boat even in minor collision.
A Non-metal Mooring Buoy of
Diameter only weights about
120 Kg. The Mooring Buoy's material are
light-weight (buoyant), long
lasting and maintenance free.
A Steel Mooring Buoy of 1.0
meter in Diameter
weights about 550 Kg. The Mooring Buoy's material are
heavy steel, in case of aging/damages (cracked and holed) it will sink,
unless it had been filled with Styrofoam inside, but it will require additional costs and procedures.
The weight of a
25 mm x 12 meters
is about 170 Kg
(downward force). In order to maintain about
afloat on the surface as required, a
meter in Diameter
only needs 0.8 meter in Height to offset the downward forces
and maintain about 0.4 meter
stays afloat on the surface.
In order to maintain about
50 % of the Mooring
Buoy stays afloat on the surface,
a Steel Mooring
Buoy of 1.0
meter in Diameter
needs about 1.2 meter in Height to offset the downward forces and maintain about 0.6 meter stays
afloat on the surface.
Higher the Mooring Buoy afloat on the surface, higher the chance of titling sideway that causes the growth of marine barnacles and worn out on the top half of the Mooring Buoy.
Maintenance and Durability
A Non-Metal Mooring
never get rusty,
and it is very light-weight,
over a period of time, when marine barnacles found on the surface and underneath of a Non-metal Mooring Buoy, it can be easily flipped over 90 degree on the surface and cleaned in place without removal and repainting. A Non-Metal Mooring Buoy is long lasting and maintenance free, it may last for 10 years or more under normal usage without extensive care.
Over a period of time, when rusty and marine barnacles found on the surface and underneath of a Steel Mooring Buoy, additional costs will be required for removal, cleaning, repairing, repainting and replacement.
Even under reasonable good maintenance, a Steel Mooring Buoy may only last for about 5 years.
Manufacturing of the Non-metal Mooring / Navigation Buoys
All Non-metal Mooring Buoys and Navigation Buoys are tailor-made at our Factories in mainland China (PRC) based on individual needs and requirements of Hong Kong Marine Department. The manufacturing processes of the EVA / Polyurea Middle Shaft Mooring Buoys
/ Marine Department Wreck Buoys
and Fiberglass (GPR) Through Chain Mooring Buoys are:
Firstly, assembly of the Pre-cast EVA with Stainless Steel Middle Shaft or
Fiberglass Module with Stainless Steel
Hollow Structures to form the size of the required Mooring / Navigation Buoy.
Secondly, spray the EVA cylindrical body with several coats of Polyurea that mixed with desired colour by Computerized Spraying System. Polyurea is a new developed material that is very high abrasive, heat resistant and never worn out, it will dry immediately upon spraying.
For Fiberglass Through Chain Buoys, installation of Reinforced Rubber Fenders and
with hard Polyurethane (PU), and each Buoy paired with a
Stainless Steel Mooring Ring.
Finally, dress up, marking of Buoy Numbers, Anti-fouling painting and pack up for delivery.
For inquiry, please contact Mr. Li
9488 4148 or (86) 138 2522 3300 or E-mail