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Tug CylindricalsM-Fenders

W-FendersBlock FendersCompositesExtrusions

Tug Fenders

Re. M1100-S07-V1-3-EN

Section 7

www.trelleborg.com/marine

ImagecourtesyofSanmar

Trelleborg Marine Systems

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Standard manuacturing and perormance tolerances apply (see pages 136 to 139)

M1100-S07-V1-3-EN. Trelleborg AB, 011

72

Tug enders must work harder, or

longer and under more extreme

conditions than any other ender

type. Tugs may be ftted with up to

our types o ender each type

serving a particular application.

As many tugs become more

powerul, some exceeding 100t

bollard pull, choosing the right type,size and arrangement o enders

becomes critical.

When selecting enders, designers

should consider:

Bollard pullB

Initial contact loadsB

Dynamic load eectsB

Friction requirementsB

Pushing anglesB

Hull attachmentB

Fender tolerancesBMaterial qualityB

Spares availabilityB

Contact your local ofce or urther

inormation and advice.

TUGFENDERS

Cylindrical fenders

Fitted to the bow/stern o

tugs and usually used to push

against ared hulls and in open

sea conditions.

Pushing fenders

Block, Cube and W- and M-

enders provide large contactsuraces or low hull pressures.

Their grooved suraces

provide exceptional grip.

Side beltings

D, Square and Wing-D enders

are oten used as side beltings

to protect the vessel during

escort duties and when coming

alongside.

Transition Blocks

Transition Blocks are used toprovide a smooth interace

between side beltings and

bow/stern enders.

ABAQUS Finite Element Analysis of true hull shapes and fender arrangements

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73

D d A Bmax C G J Weight

50 15 00 570 500 190 75 45.5

300 150 5 600 700 5 75 65.

380 190 80 650 800 80 100 105

400 00 300 670 800 300 100 116

450 5 300 700 850 350 100 147

500 50 300 730 900 375 100 181

600 300 350 800 900 450 15 55

800 400 350 930 1000 600 15 453

900 450 350 1000 1100 675 150 573

1000 500 350 1060 100 750 150 707

Large cylindrical enders are oten

used as the primary pushing enders

on the bow or stern o modern tugs.

Their round shape is ideal or working

with large bow ares (like container

ships), but are equally good or

pushing at-sided vessels.

Tug Cylindricals come in diameters

to 1000mm and in very long

continuous or spigot-joined lengths.A longitudinal chain runs down the

centre o the ender, supplemented

by circumerential straps or chains

which are recessed into grooves.

Tapered ends are also available.

TUG

CYLINDRICALS

[ Units: mm, kg/m ]

D

J

G

C

BBBAL

d

d d

Groove size varies according to attachment method.

Lengths 13m in one section, spigot joined or longer lengths.

Attachment

Smaller enders (500mm diameter) are

usually fxed by a longitudinal chain through

the bore o the ender, connected to the hull

by turnbuckles to tension the chain. Larger

enders oten use supplementary chains or

straps around the ender.

Curve Radius

Tug Cylindrical enders are made in straight

lengths but can be pulled around the bow or

stern radius.

R

D

R

D

R4 D

StrapChain

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74

Type A B C D E F Lmax Weight

M400 400 00 40 3 50 150 000 56

M500 500 50 50 7 60 190 000 89

M600 600 300 60 33 70 30 000 13

M800 800 400 80 44 95 305 100 35

[ Units: mm, kg/m ]

B

L

Intermediate

support when

L > 1000mm

Fixing pin

A

B

D

EFFE

C

R (min)Reactionforce(kN

permetre)

Deection (mm)

0

100

00

300

400

500

600

700

800

900

0 0 40 60 80 100

M400 200

M500 250

M600 300

M-FENDERS

M-Fenders have a large and exible

contact ace which exerts a low

pressure during pushing operations.

The grooves provide extra grip

and the triple legs give a strong

attachment to the tug. M-Fenders

can also be ftted around tight

curves, whilst their relative low

weight adds to tug stability.

FeaturesHeavy-duty designB

Triple-leg attachmentB

Sot, exible aceB

Grooved or extra gripB

Low weight per m2B

Fits around tight bendsB

Applications

All types o tugB

Pontoon protectionB

Special corner endersB

Note: M-Fenders and W-Fenders are

not interchangeable.

Pin Flat bar Rmin

0 100 15 450

4 15 0 550

30 150 0 650

40 150 0 900

[ Units: mm ]

Dimensions Fixing

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75

W-FENDERS

W-Fenders are made or the most

extreme operating conditions.

Originally developed by Trelleborg

Bakker, the W-Fender is one o the

most successul enders or tugs

in the world today. It has a unique

open bore design which makes

installation very simple. The exible

legs allow W-Fenders to be curved

around most hull shapes.

Features

Extreme-duty designB

Twin-leg attachmentB

Open bore or easy installationB

Grooved or extra gripB

Fits around tight bendsB

Applications

Ocean-going tugsB

IcebreakersB

Large harbour tugsBBridge and pile protectionB

Note: M-Fenders and W-Fenders are

not interchangeable.

Type A B C D E F K Lmax Weight

W3-0 30 00 80 180 100 67 50 000 51

W40-5 400 50 350 0 110 75 55 000 81

W48-30 480 300 46 69 135 90 65 000 10

W50-45 500 450 40 55 90 100 75 000 180

A

B

R (min)

EDC

K F

Reactionforce(kN

perme

tre)

Deection (mm)

0

100

00

300

400

500

600

0 0 40 60 80 100

W32-20

W40-25

W48-30

B

L

Intermediate

support when

L > 1000mm

Fixing pin

Pin Flat bar Rmin

5 100 0 600

30 10 0 800

40 140 0 900

40 150 0 1000

Dimensions Fixings

[ Units: mm, kg/m ] [ Units: mm ]

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76

Block Fender dimensions

A B C D E G Lmax Weight

00 00 35 8 130 90 000 33

50 50 50 33 150 100 000 54

300 300 60 33 180 115 1750 80

350 350 70 33 10 15 000 114

Cube Fender dimensions

A B C D E G L Weight

50 50 50 33* 150 100 50 13

300 300 60 33* 180 115 00 16

[ Units: mm ]

BLOCK

FENDERS

Block and Cube Fenders have a

traditional keyhole profle which

is strong and ideal or heavy-duty

applications. There is a choice

o grooved or at ace enders

depending on the required riction

levels. Where very low riction is

needed, Block and Cube Fenders can

also be made as Composite enderswith integral UHMW-PE aces. This is

useul or tugs that operate in heavy

swell and storm conditions.

Features

Heavy-duty designB

Traditional, proven shapeB

Grooved or smooth aceB

Optional UHMW-PE aceB

Note: M-, W-, Block and Cube fenders

are not interchangeable.

B

A

C

EC

G

D

L

C

R (min)

B

L

Intermediate

support when

L > 1000mm

Fixing pin

[ Units: mm ]

Reactionforce(kN

perme

tre)

Deection (mm)

0

100

00

300

400

500

600

700

800

900

0 0 40 60 80 100

200 200

250 250

300 300

350 350

* Optional 8mm and 5mm pin.

[ Units: mm, kg/m ]

Fixings

Pin Flat bar Rmin

30* 15 0 600

30* 150 5 800

Fixings

Pin Flat bar Rmin

5 100 15 450

30 15 0 60030 150 0 800

30 175 5 1000

[ Units: mm, kg ]

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77

Composite enders* combine

rubber or resilience and UHMW-PE

or low-riction and wear resistant

properties. The two materials are

bonded with a special vulcanising

method stronger and more reliable

than a mechanical joint. Composite

enders are used where the

simplicity o extrusions are required

but with lower shear orces.

* Also called Rubbylene

COMPOSITE

FENDERS

CF-A series CF-B series

A B C* t D E F G HFlatbar

Boltsize

StdLength

Weight

CF-A CF-B

100 100 30 0 15 5 10 90130 00300 50 6 M1 3000 10.3 11.1

150 150 65 0 0 30 1 110150 50350 60 8 M16 3000 1.5 7.0

165 15 65 0 0 35 15 110150 50350 60 8 M16 3000 19. 4.8

00 00 75 5 5 45 0 130180 300400 80 10 M0 3000 40. 48.0

00 00 100 5 5 45 0 130180 300400 80 10 M0 3000 36. 48.0

50 50 100 30 30 50 5 14000 350450 100 10 M4 000 60. 75.0

300 300 15 30 30 60 30 14000 350450 110 1 M4 3700 9.1 108

[ Units: mm, kg/m ]* Dimension only applies to CF-A ender.

CF-C series CF-D series

A B C* a b c t D E F G HFlatbar

Boltsize

StdLength

Weight

CF-C CF-D

80 80 4 60 40 44 10 15 5 6 90130 00300 45 6 M1 000 5.4 7.0

100 100 45 74 50 56 10 15 5 8 90130 00300 45 6 M1 000 8.4 11.0

10 10 6 88 60 67 1 0 30 10 110150 50350 60 8 M16 000 1. 15.8

150 150 73 110 75 83 15 0 30 1 110150 50350 60 8 M16 3000 19.7 4.8

[ Units: mm, kg/m ]* Dimension only applies to CF-C ender.

F

A

t

C

BE

D

G H HBE

D

C

F

Aa

b

t

cUHMW-PE ace (black as standard)

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78

Deection (%)

0 10 0 30 40 50

Reaction(%

ofRated)

0

40

60

80

100

10

0

Energy(%

ofRated)

0

40

0

60

80

100

10

Reac

tion

Energ

y

Rated Reaction

DC-fenders

A B C D E F G HFlatbar

Boltsize

Weight

100 100 30 15 5 10 90130 00300 50 6 M1 10.1

150 150 65 0 30 1 110150 50350 60 8 M16 0.6

00 00 75 5 45 15 130180 300400 80 10 M0 38.5

50 50 100 30 50 0 14000 350450 100 10 M4 59.0

300 300 15 30 60 5 14000 350450 110 1 M4 83.7

350 350 150 35 70 5 14000 350450 10 1 M30 113

400 400 175 35 80 30 14000 350450 130 15 M30 146

400 400 00 35 80 30 14000 350450 130 15 M30 137

500 500 50 35 100 30 14000 350450 130 15 M36 14

SC-fenders

A B C D E F G HFlatbar

Boltsize

Weight

100 100 30 15 5 10 90130 00300 50 6 M1 11.4

150 150 65 0 30 1 110150 50350 60 8 M16 3.6

165 15 65 0 30 15 110150 50350 60 8 M16 1.3

00 00 75 5 45 15 130180 300400 80 10 M0 43.8

00 00 100 5 40 15 130180 300400 80 10 M0 39.5

50 00 80 30 45 0 14000 350450 90 10 M4 55.3

50 50 100 30 50 0 14000 350450 100 10 M4 67.

300 50 100 30 50 5 14000 350450 100 10 M4 8.6

300 300 15 30 60 5 14000 350450 110 1 M4 95.6

350 350 150 35 65 5 14000 350450 10 1 M30 16

350 350 175 35 65 5 14000 350450 10 1 M30 11

400 400 00 35 70 30 14000 350450 130 15 M30 158

500 500 50 45 90 40 15030 400500 150 0 M36 47

Square and D-section extruded

profles are widely used as beltings

on tugs and other workboats.

DC and SC enders have a circular

bore or extra wall thickness and

durability. DD and SD enders have a

D-bore or securing with a at bar.

Extruded enders are available in

many other sections as well. All can

be cut to length, drilled, angle cut orpre-curved as required.

EXTRUDED

FENDERS

G H HF

AC

BE

D

[ Units: mm, kg/m ]

[ Units: mm, kg/m ]Fendersize E(kNm) R(kN) E(kNm) R(kN)

100 1.9 157 .7 173

150 4. 35 6.4 59

00 7.5 314 11.3 345

50 11.7 39 17.7 431

300 16.9 471 5.5 518

350 .9 549 34.3 604

400 9.4 68 45.1 690

500 46.0 785 70.5 863

Values are per metre.

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EXTRUDED FENDERS



79

DD-series

A B C D E F G H Flat bar Bolt size Weight

80 70 45 30 30 15 90130 00300 35 5 M1 4.8100 100 50 45 30 15 90130 00300 40 5 M1 8.5

15 15 60 60 40 0 110150 50300 50 6 M16 13.

150 150 75 75 40 0 110150 50300 60 8 M16 18.5

00 150 100 80 50 5 130180 300400 80 10 M0 3.1

00 00 100 100 50 5 130180 300400 80 10 M0 3.9

50 00 15 100 60 30 14000 350450 90 1 M4 39.9

50 50 15 15 60 30 14000 350450 90 1 M4 51.5

300 300 150 150 60 30 14000 350450 110 1 M4 74.1

350 350 175 175 75 35 14000 350450 130 15 M30 101

380 380 190 190 75 35 14000 350450 140 15 M30 119

400 300 175 150 75 35 14000 350450 130 15 M30 99

400 400 00 00 75 35 14000 350450 150 15 M30 13

500 500 50 50 90 45 16030 400500 180 0 M36 06

SD-series

A B C D E F G H Flat bar Bolt size Weight

100 100 50 45 30 15 90130 00300 40 5 M1 9.9

150 150 70 65 40 0 110150 50300 50 8 M16 .7

165 15 80 60 40 0 110150 50300 60 8 M16 0.3

00 150 90 65 50 5 130180 300400 70 10 M0 30.8

00 00 90 95 50 5 130180 300400 70 10 M0 39.8

50 00 10 95 60 30 14000 350450 90 1 M4 49.4

50 50 10 10 60 30 14000 350450 90 1 M4 61.1

300 50 140 115 60 30 14000 350450 100 1 M4 75.0

300 300 15 135 60 30 14000 350450 100 1 M4 9.0

400 400 00 00 75 35 14000 350450 150 15 M30 153

500 500 50 50 90 45 16030 400500 180 0 M36 39

[ Units: mm, kg/m ]

[ Units: mm, kg/m ]

Fendersize E(kNm) R(kN) E(kNm) R(kN)

100 1.4 77 .7 136

150 3. 115 6.4 06

00 5.7 153 11.3 75

50 8.9 191 17.6 343

300 1.9 30 5.5 41

350 17.6 68 34.3 471

400 3.0 306 45. 589

500 35.9 383 70.7 736

Values are per metre.

ACEF

G H HBD 5

Deection (%)

0 10 0 30 40 50

Reaction(%

ofRated)

0

40

60

80

100

10

0

Energy(%

ofRated)

0

40

0

60

80

100

10

Reac

tion

Energ

y

Rated Reaction

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CHAINS & ACCESSORIES

M1100-S07-V1-3-EN

Trelleborg AB, 011

710

Open Link Chains

C 3.0D links 3.5D links 4.0D links 5.0D links MBL

L W Weight L W Weight L W Weight L W Weight SL2 SL3

14 4 18 0. 49 0 0. 56 0 0. 70 1 0.3 14 154

16 48 1 0.3 56 0.3 64 0.3 80 4 0.4 160 0

18 54 3 0.4 63 5 0.4 7 5 0.5 90 7 0.5 09 6

0 60 6 0.5 70 8 0.6 80 8 0.6 100 30 0.8 64 330

66 9 0.7 77 31 0.8 88 31 0.8 110 33 1.0 304 380

5 75 33 1.1 88 35 1.1 100 35 1. 15 38 1.5 393 491

8 84 36 1.4 98 39 1.6 11 39 1.7 140 4 .0 49 616

30 90 39 1.8 105 4 .0 10 4 .1 150 45 .5 566 706

3 96 4 . 11 45 .4 18 45 .5 160 48 3.0 644 804

35 105 46 .8 13 49 3.1 140 49 3.3 175 53 4.0 770 964

38 114 49 3.6 133 53 3.9 15 53 4.3 190 57 5.1 900 1130

40 10 5 4. 140 56 4.6 160 56 5.0 00 60 6.0 1010 160

45 135 59 6.0 158 63 6.5 180 63 7.1 5 68 8.5 175 1590

50 150 65 8. 175 70 8.9 00 70 9.7 50 75 11.6 1570 1960

55 165 7 10.9 193 77 11.9 0 77 1.9 75 83 15.5 1900 380

60 180 78 14. 10 84 15.4 40 84 16.8 300 90 0.1 60 770

[ Units: mm, kg/link, kN ]

WL

C

MBL = Minimum Breaking Load (kN)

NBL = Nominal Breaking Load (kN)

Tolerance: all dimensions %

High Strength Shackles

D F H GDee shackle Bow shackle

NBLE Weight E J Weight

13 16 6 43 0.4 51 3 0.4 10

16 19 3 7 51 0.7 64 43 0.8 195

19 38 31 59 1.1 76 51 1.3 85

5 44 36 73 1.5 83 58 1.9 390

5 8 50 43 85 .6 95 68 .8 510

8 3 56 47 90 3.3 108 75 3.8 570

3 35 64 51 94 4.7 115 83 5.3 70

35 38 70 57 115 6. 133 95 7.0 810

38 4 76 60 17 7.6 146 99 8.8 100

45 50 90 74 149 1.8 178 16 15.0 1500

50 57 100 83 171 18. 197 138 0.7 10057 65 114 95 190 7.8 160 9.3 550

65 70 130 105 03 35.1 54 180 41.0 3330

75 80 150 17 30 60.0 330 190 64.5 5100

89 95 178 146 67 93.0 381 38 110 700

10 108 04 165 400 145 400 75 160 9000

D

E

F

H

G

J

H

D

E

FGSaety pin

Dee Bow[ Units: mm, kg, kN ]

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M1100-S07-V1-3-EN

Trelleborg AB, 011

711

Proven

in practice

GraemeEwens

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PROJECT REQUIREMENTS

M1100-S07-V1-3-EN

Trelleborg AB, 011

712

VESSEL Name or Yard Number: ________________________________________________

Overall length _________________ m Length at waterline _____________ m Beam (moulded) _______________m

Drat (max) ___________________ m Displacement __________________ t Bollard pull (BP) _________________t

Pushing hull pressure ________ t/m2 Operating angle () ________degrees Flare angle () ___________ degrees

CYLINDRICAL FENDER

Bow Stern

Inside diameter _______________mm Outside diameter ______________mm

Length _______________________ m Joints allowed: yes no Tapered ends: yes no

Longitudinal chain: yes no Size _____________________mm

Circumerential fxings: chain web not required

For assistance with design or pricing o tug enders, please complete this orm and ax or email it to your local Trelleborg

Marine Systems ofce, together with legible drawings i possible.

PROJECT DETAILS

Operating Port/Region

Owner/Operator

Naval Architect

Shipyard

PROJECT STATUS

TMS Re:

Design

Under Construction

Reft

Operating Angle

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PROJECT REQUIREMENTS

M1100-S07-V1-3-EN

Trelleborg AB, 011

713

PUSHING FENDERS

Bow Stern

BOW

STERN

M-Type

W-Type

Keyhole

Section Size (mm)

DRAWINGS Full drawings available yes no

SIDE BELTINGS

(tick required section)

Section size __________________mm Approx. length _________________ m (total port and starboard)

Joints allowed: yes no Plugged joints: yes no

Transition Blocks: Bow: yes no Stern: yes no

FURTHER DETAILS AVAILABLE FROM

Name Tel

Company Fax

Position Mobile

Address Email

Web

QUALITY SAFETY

Highest quality Maximum saety

Lowest price Not saety-critical

ENVIRONMENT

Operating temperature

Minimum ________ (C)

Maximum _______ (C)

Corrosivity

low medium

high extreme

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