POOL Anchors - SEC Ship`s Equipment Centre | Bremen

®
POOL Anchors
Ship`s Equipment Centre Bremen (Shanghai) Co., Ltd.
Room 1505
No. 500 Guang Dong Road
SHANGHAI 200 001 / P.R. China Phone: + 86 (0) 21 6362 0322
Fax: + 86 (0) 21 6362 0325
E-Mail: [email protected]
www.sec-bremen.de
Ship`s Equipment Centre Bremen
(Shanghai) Co., Ltd.
Ship`s Equipment Centre Bremen (Shanghai) Co., Ltd.
Ship`s Equipment Centre Bremen (Shanghai) Co., Ltd.
PROFILE
SEC Ship’s Equipment Centre Bremen (Shanghai) Co., Ltd. is a Chinese company, 100 % owned by its parent
company SEC Ship’s Equipment Centre Bremen GmbH. It acts as sales office for the following SEC products and services :
- Cargo Securing Equipment for newbuildings in China
- Cargo Securing Equipment for existing ships in the Far East markets
- Design of Cargo Securing Systems for newbuildings in China
- SEC POOL® anchors for the Far East markets
As such, SEC Shanghai Co., Ltd. is considered to be one of the worldwide leading manufacturers of cargo securing
equipments and the original POOL® anchors.
All the equipments and anchors are being manufactured in Shanghai under the management of our Joint Venture
partner Shanghai SEC Machinery Co., Ltd.
The manufacturing of original POOL® anchors in China started in year 2005 by using local high tensile steel plates,
qualified welding experts, proven designs and the type approval certificates from all major classification societies.
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Technical alterations reserved
Technical alterations reserved
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Ship`s Equipment Centre Bremen (Shanghai) Co., Ltd.
Ship`s Equipment Centre Bremen (Shanghai) Co., Ltd.
EQUIPMENT TABLE
GENERAL
Table of equipment for self-propelled ocean going vessels
The table of equipment links the so-called equipment number to the composition, size and quality of anchors, chains and
mooring ropes on ocean-going vessels. The equipment number is normally calculated in the design stage of the vessel.
This table is accepted and used by all main classification societies.
EQUIPMENT
NUMBER
150 - 175
175 - 205
205 - 240
240 - 280
280 - 320
320 - 360
360 - 400
400 - 450
450 - 500
500 - 550
550 - 600
600 - 660
660 - 720
720 - 780
780 - 840
840 - 910
910 - 980
980 - 1060
1060 - 1140
1140 - 1220
1220 - 1300
1300 - 1390
1390 - 1480
1480 - 1570
1570 - 1670
1670 - 1790
1790 - 1930
1930 - 2080
2080 - 2230
2230 - 2380
2380 - 2530
2530 - 2700
2700 - 2870
2870 - 3040
3040 - 3210
3210 - 3400
3400 - 3600
3600 - 3800
3800 - 4000
4000 - 4200
4200 - 4400
4400 - 4600
4600 - 4800
4800 - 5000
5000 - 5200
5200 - 5500
5500 - 5800
5800 - 6100
6100 - 6500
6500 - 6900
6900 - 7400
7400 - 7900
7900 - 8400
8400 - 8900
8900 - 9400
9400 - 10000
10
STOCKLESS BOWER
ANCHORS (weight)
CONV.
HHP POOL®
ANCHORS
ANCHORS
(kg)
(kg)
480
570
660
780
900
1020
1140
1290
1440
1590
1740
1920
2100
2280
2460
2640
2850
3060
3300
3540
3780
4050
4320
4590
4890
5250
5610
6000
6450
6900
7350
7800
8300
8700
9300
9900
10500
11100
11700
12300
12900
13500
14100
14700
15400
16100
16900
17800
18800
20000
21500
23000
24500
26000
27500
29000
360
430
495
585
675
765
855
970
1080
1195
1305
1440
1575
1710
1845
1980
2140
2295
2475
2655
2835
3040
3240
3445
3670
3940
4210
4500
4840
5175
5515
5850
6225
6525
6975
7425
7875
8325
8775
9225
9675
10125
10575
11025
11550
12075
12675
13350
14100
15000
16125
17250
18375
19500
20625
21750
STUDLINK CHAINCABELS
TOWING LINES
MOORING LINES
TOTAL
Length
(m)
QUANTITY LENGTH
275
302,5
302,5
330
357,5
357,5
385
385
412,5
412,5
440
440
440
467,5
467,5
467,5
495
495
495
522,5
522,5
522,5
550
550
550
577,5
577,5
577,5
605
605
605
632,5
632,5
632,5
660
660
660
687,5
687,5
687,5
715
715
715
742,5
742,5
742,5
742,5
742,5
742,5
770
770
770
770
770
770
770
U2
U3
Length
MBL
(mm)
(mm)
(m)
(kN)
19
20,5
22
24
26
28
30
32
34
34
36
38
40
42
44
46
48
50
50
52
54
56
58
60
62
64
66
68
70
73
76
78
81
84
84
87
90
92
95
97
100
102
105
107
111
111
114
117
120
124
127
132
137
142
147
152
19
20,5
20,5
22
24
24
26
28
30
30
32
34
36
36
38
40
42
44
46
46
48
50
50
52
54
56
58
60
62
64
66
68
70
73
76
78
78
81
84
87
87
90
92
95
97
97
100
102
107
111
114
117
122
127
132
132
180
180
180
180
180
180
180
180
180
190
190
190
190
190
190
190
190
200
200
200
200
200
200
220
220
220
220
220
240
240
240
260
260
260
280
280
280
300
300
300
300
300
300
300
300
300
300
300
300
300
300
300
300
300
300
300
100
110
130
150
175
200
225
250
275
305
340
370
405
440
480
520
560
600
645
690
740
785
835
890
940
1025
1110
1170
1260
1355
1455
1470
1470
1470
1470
1470
1470
1470
1470
1470
1470
1470
1470
1470
1470
1470
1470
1470
1470
1470
1470
1470
1470
1470
1470
1470
(m)
3
3
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
5
5
5
5
5
5
5
5
6
6
6
6
6
6
6
6
7
7
7
7
7
8
8
8
9
9
9
10
11
11
12
13
14
120
120
120
120
140
140
140
140
140
160
160
160
160
170
170
170
170
180
180
180
180
180
180
190
190
190
190
190
200
200
200
200
200
200
200
200
200
200
200
200
200
200
200
200
200
200
200
200
200
200
200
200
200
200
200
200
MBL
EACH
(kN)
55
60
65
70
80
85
95
100
110
120
130
145
160
170
185
200
215
230
250
270
285
305
325
325
335
350
375
400
425
450
480
480
490
500
520
555
590
620
650
650
660
670
680
685
685
695
705
705
715
725
725
725
735
735
735
735
Technical alterations reserved
The original SEC POOL® anchors are the outcome of centuries
of ship’s anchor development, which started with the old wellknown stock-anchor. Following the sailor’s demands for better
tractability of the anchor the still frequently used cast stockless
bow-anchor was developed. During the last decades the so-called
High Holding Power (HHP) and Super High Holding Power (SHHP)
anchors have been developed because of the need for more reliability and less weight. The leading types of these anchors are
the POOL® anchors. Over 30 years of experience and knowledge
of the POOL® anchor makes SEC a reliable partner for today and
the future.
In order to obtain type approval for High Holding Power, the anchor
has to prove during full-scale sea trials that it has a holding ability
of at least two times the holding ability of a conventional anchor of
the same weight. The predicate HHP allows a weight reduction of
25 % compared to a conventional anchor for the same equipment
number.
An important comparative feature is the over-balanced anchor
head of almost all POOL® anchor-types. The centre of gravity
of these anchors lies below the axle. As a result the flukes are
always vertical while heaving the anchor.
Contrary to most other ship’s anchors, which are casted or forged,
the POOL® anchors are made from welded high tensile steel plate
material.
SEATRIALS POOL-TW & CONVENTIONAL ANCHORS
Normally, the anchor is connected by means of a chain or a steel
wire (and a chain forerunner) to the vessel. Of course SEC can supply the complete chain specification with the anchor. A minimum
requirement, however is to consult SEC. Therefore, please pay
attention to the way the anchor and the chain are connected to
each other on one side, and to the way the chain is connected to
the vessel on the other side.
The diagram on the left is the result of one of the full-scale sea
trials. In this diagram you can see that the holding power of a
POOL® anchor can be as high as 10 times the weight of the
anchor under good conditions.
HHP-POOL® N Anchor
(hollow flukes)
Technical alterations reserved
HHP-POOL® TW Anchor
(solid flukes)
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Ship`s Equipment Centre Bremen (Shanghai) Co., Ltd.
Ship`s Equipment Centre Bremen (Shanghai) Co., Ltd.
®
®
HHP-POOL TW Anchors
POOL SUPERBOX SWIVELS
HHP-POOL® TW ANCHORS
POOL® SUPERBOX SWIVELS
Although all POOL® anchors have a high holding ability, the
POOL® TW anchor shows best the combination of holding power
and fluke surface. The anchor has large flat flukes made out of
high tensile steel plate material. The thickness varies from 15 mm
up to 140 mm (depending on the anchor size).
The POOL® superbox swivel is the shortest possible connection
between anchor and chain approved by various classification
societies.
In the design of a vessel a compromise has to be made between
optimized mooring arrangement and the deck area available for
anchoring and mooring equipment.
The extreme points and the inner edges of the flukes are sharpened in order to enable them to dig in easily. To prevent the anchor
from digging in too deep, the POOL® TW anchor is equipped with
crownplates.
Connection of anchor and chain with POOL®
superbox swivel (1)
and conventional connection (2)
2
1
Application of the POOL® superbox swivel means a shorter
distance between anchor shank and chain stopper. The winches
can be placed more to the front of the vessel, which reduces the
required deck area.
An interesting result of this design is that a relatively low force in
transverse direction is necessary to lift the anchor.
The POOL® superbox swivel can be connected directly to the
anchor shank. No crown shackle is required. At the chain end it
can be connected directly to the last common link of the chain. No
endlink or adaptor piece is required.
The POOL® TW anchor is available in standard and in fully-balanced execution. This enables the anchor in fully balanced execution
to be smoothly stowed into an anchor pocket.
The endshape of the shank of the POOL® TW anchor can be varied
for application of all different types and dimensions of connecting
parts.
- Minimum length
- Crownshackle not necessary
- Endlink not necessary
- Type approved by various
classification societies
HHP-POOL® TW Anchor
- Low breakout force
- Quick digging at
minimum drag
- Large fluke area
- Repairable
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Technical alterations reserved
Technical alterations reserved
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Ship`s Equipment Centre Bremen (Shanghai) Co., Ltd.
Ship`s Equipment Centre Bremen (Shanghai) Co., Ltd.
®
®
POOL ANCHOR POCKET DESIGN
HHP-POOL N Anchors
POOL® ANCHOR POCKET DESIGN
HHP-POOL® N anchors
The combination of a fully balanced POOL® anchor and a SEC
anchor pocket design guarantees uncomplicated and efficient
stowing in an anchor pocket.
The POOL® N anchor is said to be the most beautiful anchor.
Probably for this reason large yachts and cruise vessels are often
equipped with this type of POOL® anchor.
Starting on the 1st of January, 2001, the Dutch Shipping Inspection
(SI) requires that every inland vessel is equipped with recessed
anchor. The use of a recess avoids the possible damage caused by
sticking out of the anchor edges in case of an accident.
This does not mean that these anchors are not in use on board
of cargo carriers. On the contrary, some of the biggest container
shipping lines in the world equip all their vessels with this type of
POOL® anchor.
SEC has the know-how to design anchor pockets for POOL®
anchors in the most optimum shape, completely adapted to the
dimensions and the shape of the vessel.
The flukes of POOL® N anchor are constructed out of two shaped
plates, which are welded together. Therefore, the flukes of the
POOL® N anchor are hollow. This construction gives the anchor a
large resistance against bending forces.
Integration of this kind of anchor pocket in ship’s hull has to be
done in the preliminary design stage and in close co-operation
with the shipyard’s design engineers. Efforts in this designing
process are concentrated on finding the optimum combination
between functionality of the anchor and availability of space in
the hull.
The extreme points of the POOL® N anchor are wider than the
width of the crownplates. Consequently the anchor gives a very
stable anchoring character.
The POOL® N anchors are fully balanced, which enables them
to be smoothly stowed in an anchor pocket. The endshape of the
shank of the POOL® N anchor can be varied for application of all
different types and dimensions of connecting parts.
As part of the anchor pocket design SEC can provide:
Sketch of side view over anchor chain or rope and a top view
of the deck on which the winch and the anchor are situated.
Outlining of anchor stowage.
Dimensional sketch of anchor pocket.
Advice on alterations to the already designed
construction surrounding the position of the anchor pocket.
HHP-POOL® N Anchor
- Good stability
- Easy stowing
- Big Crownplates
- Shortening of shank possible
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Technical alterations reserved
Technical alterations reserved
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Ship`s Equipment Centre Bremen (Shanghai) Co., Ltd.
Ship`s Equipment Centre Bremen (Shanghai) Co., Ltd.
®
POOL ANCHORS FOR SHIPOWNERS AND SHIPYARDS
Type approved by major classification societies:
SEC’s High Holding Power POOL® anchors have the following advantages for shipyards and shipowners compared to other types
1.) Less weight (25%)
4.) Made of welded steel plate materials
The original SEC POOL® anchors are High Holding Power anchors. This means that the
POOL® anchor has proven to have at least two times the holding power of a conventional anchor. Classification societies allow a weight reduction by 25% relative to the
weight according to the tables of equipment.
Advantages:
- Small dimensional deviations from the standard within tolerances given by the classification
societies are easily carried out (such as shortening shank)
- The anchor can easily be made out of other non-standard materials such as stainless steel etc.
- When, in case of extreme circumstances, a POOL® anchor is damaged it can easily be repaired
by replacing damaged parts.
- Less weight to be carried during the lifetime of the vessel.
- More safety because the remaining holding power is still at least 1.5 times
the holding power of a conventional anchor.
2.) Fully-balanced (over-balanced)
5.) Made of welded steel plate materials
The anchor flukes will always stay vertical when heaving the anchor.
Advantages:
- For extreme low ambient temperatures below -20°C the grade of steel plate
materials can be adjusted, e. g. for arctic vessels with high ice class.
- Damage to vessel’s hull is reduced
- The anchor will always come home smoothly
3.) Smooth stowage into recess-type anchor pockets
6.) Large crown plates
Due to unique characteristics all anchor motions during heaving and lowering of
POOL® anchors are defined and known. This results in following advantages:
The original SEC POOL® anchors have big crown plates which prevent the anchor from digging in too
deep. This results in a relatively low breakout-force.
Advantages:
- “narrow anchor pocket” (please see next page)
- No need for shipyard to carry out an anchor handling Mock-up test with a scale model
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Technical alterations reserved
- Quick and safe heaving
- Fewer loss due to stuck anchors
- Less damages to the anchor
Technical alterations reserved
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