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COF#L

CYLINDERS OIL RETURN WITH HOLLOW PISTON STEEL AND ALUMINIUM

force: 30-200t
stroke: 75-250mm
max working pressure: 700bar

Features

All COF cylinders are supplied with a smooth hollow saddle and have a have a threaded body, rod and base to facilitate the fixing and inserting of the necessary accessories. These cylinders are equipped with a safety valve which is connected to the retract chamber and prevents any possible overpressure. The end of stroke nut has a wiper to prevent the entrance of dirt.
The nitride anti-corrosive treatment makes them suitable for works in harsh environments and in the open air.

OPERATIONAL AREAS

The through hole makes them particularly suitable for tensioning, mounting and the extraction of pulleys, bushings and heat exchanger pipes. They can be used in pushing and pulling operations by putting a bar or a cable attached to the saddle.

ACCESSORIES:
– ZTE threaded saddle allows the mounting of threaded bars.

STANDARD:
– Smooth hollow saddle avoids any risk of rod deformation.

OPTIONS:
L version, cylinders with aluminum body ( COF###L### )

It’s important to drop the pressure inside the cylinder before disconnecting the quick coupler to avoid problems if re-inserting or  lowering the load. In case some pressure persists it is possible to use the apposite tool KTS38.

Selection chart

PUSHING FORCE

PULLING FORCE

STROKE

PUSHINF EFFECTIVE AREA

PULLING EFFECTIVE AREA

PUSHING OIL VOLUME

PULLING IL VOLUME

MODEL

CLOSED HEIGHT

Ø EXTERNAL VERSION N Ø EXTERNAL VERSION L

Ø PISTON

Ø ROD

COUPLERS HEIGHT

Ø HOLLOW SADDLE

ROD PROJECTION

ROD INTERNAL THREAD

ROD THREAD DEPTH

Ø PCD MOUNTING HOLES

BASE MOUNTING HOLES DEPTH

COLLAR THREAD

COLLAR THREAD LENGHT

Ø THROUGH HOLE

WEIGHT VERSION N

WEIGHT VERSION L

 

 


 

 

 

 

 

 

 

* Nominal value, for precise capacity see kN

t*
kN

t*
kN

mm

cm²

cm²

cm3

cm3

A
mm

D
mm

E
mm

F
mm

H
mm

H1
mm

J
mm

K
mm

O
mm

P
mm

U
mm

V / Z
mm

W
mm

X
mm

Y
mm

kg

kg

 30

334

18

176

100  47.7  25.1 477 251 COF30N100 196

115

125

90 70 21 152 57.5 2 M48 x1,5 32 65

2xM10

12

M115

x2

20 34 13 11

150

716

377

COF30N150

246

202

16

14

250

1193

628

COF30N250

346

302

21

20

60

590

31

309

75

84.3 44.1

632

331

COF60N75

186

165

180

125  100  26

134

 81.5  2  M72 x1,5 40 90

4xM10

16

M165

x4

25 54.5

26

18

100

842

442

COF60N100

211

159

28

19

150

1264

663

COF60N150

261

209

34

24

250

2106

1104

COF60N250

361

309

46

32

100

947

58

568

75

135.3 81.1

1015

608

COF100N75

214

215

235

165 130 36

155

117.5 4 M102 x1,5 55 130

4xM12

15

M215

x4

35 80.5

47

29

150

2029

1216

COF100N150

289

230

61

37

Accessories ZTE threaded saddles

MODEL

FOR USE WITH

a

k

j

p

y

o

kg

ZTE30

COF30 # # # #

39

7

57.5

32

1 ¼’’ – 7 UNC

M48x1,5

0.3

ZTE60

COF60 # # # #

47

7

81.5

40

1 ⅝’’ 5 ½ UNS

M72x1,5

0.8

Check associated products

applications

Mining

Maintenances

Energies

Civil engineering & construction

Industry

READY DELIVERY

Thanks to our speedy deliveries you don’t have the urge to place a huge stock order to assure your customers a good service