FS Industries ENGINEERED STEEL PRODUCTS
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LOW HEIGHT HYDRAULIC CYLINDERS

ZRB & ZRM Series - Capacity: 5 to 100 tons - Stroke: 0.25" to 2.25"

ZRM Series Single-Acting Low Height Hydraulic Cylinders

single acting low height hydraulic cylinders These low height cylinders have a flat and compact
design for use where other cylinders will not fit.
1. All models come with a 3/8" NPT fast-flow coupler.
2. Mounting holes allow easy mounting on almost any
    fixture.
3. Grooved plunger ends require no saddle.
low height cylinders
single acting low height cylinders
ZRM-050 (bottom view)
hydraulic cylinders
ZRM-050 (top view)
Model
No.
ZRM-
005
ZRM-
010
ZRM-
020
ZRM-
030
ZRM-
050
ZRM-
070
ZRM-
100
D (i n.) 1.63 2.19 3 3.75 4.5 5.5 6
U1 (in.) 1.12 1.44 1.94 2.06 2.62 3 3
L 0.81 1.09 1.56 1.88 2.25 2.75 3
L = plunger to base

ZRB Series Low Height Hydraulic Cylinders

low height hydraulic cylinders These lightweight, low profile cylinders are designed
for use in confined spaces.
1. All models come with 3/8" NPT fast-flow coupler.
2. Integral handle on 100 ton model for easy carrying.
low height cylinders
low hieght cylinders hydraulic cylinders
ZRB-502 (top view)
ZRB-502 (bottom view)
Model
No.
Saddle Thread Thread Depth Bolt Circle
O P U
ZRB-1 01 M4 0.32 1.03
ZRB-2 01 M5 0.32 1.56
ZRB-3 02 M5 0.32 1.56
ZRB-5 02 M5 0.32 1.56
ZRB-1 002 M8 0.4 2.19
Key to Cylinder Dimensions - With Measurement Key
A : Collapsed Height
B : Extended Height
C : Cylinder Body Length
D : Outside Cylinder Diameter
D1 : Cylinder Width
E : Cylinder Bore Diameter
F : Plunger Rod Diameter
G : Oil Inlet Thread
H : Base to Advance Port
I : Top to Retract Port
J : Saddle Diameter
K : Plunger Protrusion (from plunger)
L : Plunger Center to Side of Base
M : Mounting Holes To Plunger
       Center
N : Length of Smaller Cylinder Part
O : Plunger Internal Thread
P : Plunger Thread Length
Q : Plunger Outside Thread
      (pull cylinders only)
U : Bolt Circle Diameter of
      Mounting Holes
V : Thread of Cylinder
      Mounting Holes
W : Collar Thread
X : Collar Thread Length
Y : Center Hole Diameter
     (hollow cylinders only)
Z : Depth of Internal
      Base Threa
d
Imperial to Metric
Inches 1/16 1/8 3/16 1/4 5/16 3/8 7/16 1/2 9/16 5/8 11/16 3/4 13/16 7/8 15/16 1
Decimal 0.0625 0.125 0.187 0.25 0.312 0.375 0.437 0.5 0.562 0.625 0.687 0.75 0.812 0.88 0.937 1
mm 1.59 3.18 4.76 6.35 7.94 9.53 11.11 12.7 14.29 15.88 17.46 19.05 20.64 22.2 23.81 25.4
Pressure
1psi: 0.069 bar
1 bar: 14.50 psi
Weight
1 pound (lb): 0.4536 kg
1 kg: 2.205 lbs
1 metric ton: 2,205 lbs
1 ton (short): 2,000 lbs
1 ton (short): 907.18 kg
Other Measurements
1 in: 25.4 mm
1 mm: 0.039 in
1 in2: 6.452 cm2
1 cm3: 0.155 in2
1 hp: 0.735 Kw
1 kW: 1.359 hp
1 Nm: 0.73756 Ft.lbs
1 Ft.lbs: 1.355818 Nm
Volume
1 in3: 16.387 cm3
1 cm3: 0.061 in3
1 liter: 61.02 in3
1 liter: 0.264 gal
1 US gal: 3,785 cm3
3.785 l
231 in3
All capacities and
measurements are
expressed in uniform
values.

The conversion chart
provides information
for translation into
equivalent system
s.

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PRICES
Model
No.
Cylinder
Capacity
(tons)
Stroke
(in)
Oil
Capacity
(in3)
Cylinder
Effective
Area (in2)
Coll. Height
(in)
Extend
Height (in)
Outside
Dia. (in)
Weight
(lbs)
Prices
A
B
D
ZRB Series Specifications
ZRB-101
10
1.5
3.35
2.43
3.47
4.97
2.75
9
$483
ZRB-201
20
1.75
7.77
4.44
3.88
5.63
3.63
11
$722
ZRB-302
30
2.44
15.85
6.5
4.63
7.06
4
15
$809
ZRB-502
50
2.38
22.91
9.63
4.81
7.19
4.88
24
$998
ZRB-1002
100
2.25
44.25
19.67
5.56
7.81
6.5
50
$1,432
ZRM Series Specifications
ZRM-005
5
0.25
0.25
0.99
1.28
1.53
2.31 x 1.63
3
$350
ZRM-010
10
0.44
0.98
2.24
1.69
2.13
3.25 x 2.19
4
$457
ZRM-020
20
0.44
1.95
4.43
2.03
2.47
4.00 x 3.00
7
$763
ZRM-030
30
0.5
3.25
6.51
2.31
2.81
4.63 x 3.75
10
$885
ZRM-050
50
0.63
6.07
9.63
2.63
3.25
5.50 x 4.50
15
$1,030
ZRM-075
75
0.63
10.03
15.92
3.13
3.75
6.50 x 5.50
25
$1,465
ZRM-100
100
0.63
12.39
19.66
3.38
4
7.00 x 6.00
32
$1,892

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Accessories - Adapters and fittings
Part # Picture Description Prices
195101
 tee adaper
Tee adapter. For installing gauge between pump
and hose coupling. Has 1/4" and 3/8" NPT
internal and 3/8" NPT external.
$38.50
195102
swivel connector 
Swivel connector, 3/8" NPT male , 3/8" NPSM female
$116.38
195103
 45 degree fitting
45° fitting. Male and female 1/4" NPT end
$80.75
195104
double tee adapter
Double tee adapter. Permits use of more than one ram
in series with one pump. Three 3/8" NPT ports.
$89.83
195311
street elbow 
Street Elbow. From 3/8" NPT male to 3/8"NPT female.
$92.87
195341
hex nipple 
Hex Nipple. From 3/8" NPT male to 3/8" NPT female
$25.23
195611
aluminum ram base 
Aluminum Ram Base. For use on 50 ton
Aluminum Cylinders only. Size: 7" x 7"
$232.03
195661
 gauge adapter
ZA1, Gauge adapter 1/2" GP, 3/8" ME, 3/8"
FE 2-3/4" Length
$43.78
195662
 gauge adapter
ZA2, Gauge adapter 1/2" GP, 1/4" ME, 3/8"
FE 4-3 /8" Length
$57.22
195663
 gauge adapter
ZA3, Gauge adapter 1/4" GP, 3/8" ME, 3/8"
FE 5-1/4" Length
$66.67
195664
gauge adapter 
ZA4, Gauge adapter 1/2" GP, 3/8" ME, 3/8" FE 6" Length
$50.75
2110-18
saddle flat type 
Saddle - Flat type for 10 ton Cylinders. Use this to protect the top of cylinder and prevent slipping.
$31.10
2110-19
snap type male connector 
Snap type male connector. To be used on the top/or bottom of ZR-series 10 ton cylinders
$38.93
2110-20
threaded type male connector 
Threaded-type male connector. To be used on the top/or bottom of ZR-series 10 ton cylinders
$31.73
2110-21
treaded male to snap type female base adapter 
Threaded male to Snap-type female base adapter. To be used with part # 21110-22 for snap-connect applications.
$38.93
2110-22
rod end threaded type adapter 
Rod-end threaded type adapter. Screw on to the base of cylinder to convert the ZR-series cylinder for threaded type applications.
$37.02

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Part #
Picture
Description
Prices
Couplers
195112
complete 3/8" npt quick coupler 
Complete 3/8" NPT quick coupler , fast flow
$78.28
195112-R
ram half coupler 
Ram half coupler and dust cap
$43.48
195112-H
hose half coupler 
Hose half coupler and dust cap
$34.82
9210104
complete 1/4" npt automotive style quick coupler 
Complete 1/4" NPT automotive-style quick
coupler regular flow
$52.15
9210104-R
ram half coupler 
Ram half coupler and dust cap
$26.57
9210104-H
hose half coupler 
Hose half coupler
$26.97
9210104L
complete 3/8" npt quick coupler 
Complete 3/8" NPT quick coupler
$52.15
9210104L-R
ram half coupler 
Ram half coupler and dust cap
$26.57
9210104L-H
hose half coupler 
Hose half coupler
$26.97
9210308
complete 3/8" npt automotive style quick coupler 
Complete 3/8" NPT automotive-style quick
coupler, regular flow
$59.83
9210308-R
ram half coupler 
Ram half coupler and dust cap
$30.42
9210308-H
hose half coupler 
Hose half coupler
$30.42
Hydraulic Hoses: Lightweight and rugged hose reinforced with 2 layers of braided steel. Choose from 1/4" I.D.
or 3/8"I.D. fast flow hose.
92104-02
hydrauilic hoses
6 ft length, 1/4" NPT end
$83.35
195212-6
6 ft length, 3/8" NPT end
$95.92
195212-8
8 ft length, 3/8" NPT end
$141.93
195212-18
18 ft length, 3/8" NPT end
$242.45
Hydraulic Pressure Gauges: Range 0-10,000 psi 2 1/2" dia. face. Use with any pumps or cylinders.
55-1211
 hydraulic pressure gauge
1/4" NPT male connection
$230.83
55-1212
1/2" NPT male connection
$230.83
Low Height Hydraulic Cylinders, Single-Acting, Flat, Compact, Hydraulic Jack, Jacks, and Low Profile Cylinders from
your source for material handling equipment.
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