7MPa Hydraulic Cylinder 70HW-8R Series(Cutting oil proof)/ Double-acting Single-rod (Switch-Set)
Switch Code
Sectional Drawing
Description of term
Product Lineup Click the icon as follows, to check the details. Rod BoreRod BoreRod Bore
Rod Bore Bore Size(mm)
32 40 50 63 80 100 125 140 150 160 180 200 224 250
B 70HW-8R1SD32BB100-AB00 70HW-8R1SD40BB100-AB00 70HW-8R1SD50BB100-AB00 70HW-8R1SD63BB100-AB00 70HW-8R1SD80BB100-AB00 70HW-8R1SD100BB100-AB00 70HW-8R1SD125BB100-AB00 - - - - - - -
C - 70HW-8R1SD40CB100-AB00 70HW-8R1SD50CB100-AB00 70HW-8R1SD63CB100-AB00 70HW-8R1SD80CB100-AB00 70HW-8R1SD100CB100-AB00 70HW-8R1SD125CB100-AB00 - - - - - - -

Specifications
Action Style Cutting oil proof type/Double-acting Single-rod/Switch Set
Available Bores(mm) 32,40,50,63,80,100,125
Mounting Style SD/LA/LB/LC/FA/FB/FY/FZ/FC/FD/FK/CA/CS/CB/TA/TC
Rod Dia. type B C
Norminal Pressure 7MPa
Max. Allowable Pressure Rod Side 13.5MPa 11MPa
Head Side 9MPa
Proof Test Pressure 10.5MPa
Min. Working Pressure Rod Side more than 0.45MPa more than 0.4MPa
Head Side 0.3MPa
Operating Speed Range 32 to 63:8 to 400mm/s 80 to 125:8 to 300mm/s
Operating Temperature -10 to +80 ºC(But do not use when frozen)
Cushion Mechanism Metal fitting type
Working Fluid Petroleum-based fluid
(For other working oil, refer to the table of working oil adaptability.)
Thread Tolerance JIS 6g/6H
Standard Stroke 32 to 50: to 1200mm 63/80: to 1600mm 100/125:to 2000mm
Stroke Tolerance
Accessories Rod End Attachment Rod End Eye(T type)/Rod End Spherical Eye(S type)/Rod End Clevis(Y type)/F Joint
Boots Standard : Nylon tarpaulin Semi-standard : Chloropaulin/Conex
Others Lock nut
Note)

Hydraulic pressure that is generated in cylinder due to the inertia of load shall be set at less than the maximum allowable pressure.
Conex of boots is the registered trade mark of Teijin,Ltd.

Switch Mountable Minimum Stroke
Bore
(mm)
Types other than TC type TC type
With a switch With two switches With a switch With two switches
AX
AX205W
WR形 WS AX
AX205W
WR WS AX
AX205W
WR WS AX
AX205W
WR WS
32 20 45(35) 45(35) 25 45(35) 45(35) 50 70(60) 75(65) 110 155(135) 165(145)
40 115
50 40(30) 45(35) 40(30) 45(35)
63 40(30) 40(30) 85(75) 85(75) 125 170(150) 175(155)
80 130
100 35(25) 40(30) 35(25) 40(30) 65 95(85) 135 175(150) 190(170)
125 40(25) 40(25) 70 90(80) 150 185(160) 195(170)
140 - - - - 95 - - 175 - -
Note)

For the TC type (with a switch), the cylinder strokes in case that the TC type attachment shown in the below figures are positioned in the place other than the center are shown in the table above.
For the minimum PH dimension at the switch mounting, refer to the dimensional drawings of theTC type.
The dimensions in the ( ) markes of the WR and WS types are the minimum strokes at the mounting of the WR515, WS225-1.


Allowable Fluid, Seal Material
Seal Material Allowable Fluid Aqueous Cutting Oil
Petroleum-based Fluid Water-Glycol Fluid
6:HNBR

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