Tie rod hydraulic cylinders style use high strength threaded steel rods to hold the two end caps to the cylinder barrel. They are most often seen in industrial factory applications. Small-bore cylinders usually have 4 tie rods, and large bore cylinders may require as many as 16 or 20 tie rods in order to retain the end caps under the tremendous forces produced.
Tie rod style cylinders can be completely disassembled for service and repair, and they are not always customizable. The National Fluid Power Association (NFPA) has standardized the dimensions of hydraulic tie-rod cylinders. This enables cylinders from different manufacturers to interchange within the same mountings.
Specification
Bore (mm)
32 • 40 • 50 • 63 • 80 • 100
Fluid
Air
Operating pressure
0.5~9.9 kgf/cm²
Temperature
-20~+80°C
Piston speed
Max. 1m/s
Stroke (mm)
(1) S 500 : +2.0~0
(2) 501 – 1250 : +3.2~0
Cushion length (mm)
Ø32, Ø40, Ø50, Ø63
22
Ø80, Ø100
25
Theoretical Force
Bore (mm)
Rod (mm)
Action
Pressed Area (cm²)
Operating pressure (kgf/cm²)
3
4
5
6
7
8
32
12
push
08.04
24
32
40
48
56
64
pull
0,3131944
21
27
34
41
48
55
40
16
push
12.56
38
50
63
75
88
100
pull
10.56
32
42
53
63
74
84
50
20
push
0,8354167
59
79
98
118
137
157
pull
16.49
49
66
82
99
115
132
63
20
push
31.16.00
93
125
156
187
218
249
pull
28.02.00
84
112
140
168
196
224
80
25
push
50.24.00
151
201
251
301
352
402
pull
45.34.00
136
181
227
272
317
363
100
25
push
78.05.00
236
314
393
471
550
628
pull
73.06.00
221
294
368
442
515
589
Mounting Type
SD
Standard
FA (MF1)
Head rectangular flange
FB (MF2)
Cap rectangular flange
LB (MS1)
End angle flange
LA
Floor
CA
One ears elevis
CB
Two ears elevis
CC
Short elevis
TC (MT4)
Intermediate trunnion
Structure and Parts List
Structure Part List
Item
Part name
Qty.
1
Rod cover
1
2
Headcover
1
3
Aluminum tube
1
4
Piston
1
5
Piston rod
1
6
Piston rod nut
1
7
Tie rod
4
8
Rod cover tie rod nut
4
9
Headcover tie rod nut
4
10
cushion screw
2
11
Powder bronze bushing
1
12
Piston rod seal
1
13
Cushion seal
2
14
Piston wearing
1
15
Induction magnet
1
16
Piston seal
1
17
Cover O-ring
2
18
Cushion screw O-ring
2
Seal Specifications
Bore Name
Rod seal
Piston packing
Cushion packing
Cushion
Cover
Piston
O-ring
O-ring
wearing
Qty.
1
1
2
2
2
1
32
PDU12
APA32
(PEI160)
SM5
SM30
WRP32
40
PDU16
APA40
DR20
SM5
SM40
WRP40
50
PDU20
APA50
CTU28
SM6
SM50
WRP50
63
PDU20
APA63
CTU28
SM6
SM63
WRP63
80
PDU25
APA80
CTU35
SM8
SM80
WRP80
100
PDU25
APA100
CTU35
SM8
SM100
WRP100
Sensor Mounting and Aligment
Structure
1. Loosen 2 M4 screws on the mounting bracket to move sensor(s) to the position you need.
Sensor and Bracket
2. Tie 2 M4 screws to make sure the right position.