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D Series Design Features
Non-Metallic Bearings
A specially compounded reinforced Teflon material is used for the
piston and rod bearings, assuring low friction characteristics.
Bearing assembly is easily removed for quick replacement.
Non-Lube Operation
Long life D cylinders are specifically designed for non-lube
operation
Cushions
High energy absorption poppet style adjustable cushions are
available as a standard option. Cushion adjusting screw is normally
located in position number 4.
Piston Rod
Hard chrome plated steel, ground and polished. Two wrench flats
standard on all bore sizes. Full male national coarse threads are
standard. All other threads available as options.
Tubing
Hard coated I.D. aluminum for corrosion resistance and low friction.
Seals
All dynamic seals are self-adjusting Block Vee Buna-N U-cups.
End Caps
Machined high strength aluminum alloy.
Pressure Rating
250 psi. air or "non-shock" hydraulic.
Temperature
Operating temperature range from a minimum of 10° F (-12°C) to a
maximum of 200° F (93° C).
Cushions: Popper cushions can
be specified for either or both ends of the Series "D" cylinder.
Standard cushion length is one inch, with optional lengths of two,
four, and six inches.
Each standard cushion increases the
cylinder length by one inch. Increases for longer cushions are shown
in the table below.
| |
Front Cushion |
Rear Cushion |
|
Model |
2", 4", 6" |
2" |
4" |
6" |
|
12 |
2 |
2-7/8 |
4-7/8 |
6-7/8 |
|
24 |
2 |
3-3/16 |
5-1/32 |
7-1/32 |
|
30 |
2 |
3-3/16 |
5-1/32 |
7-1/32 |
|
49 |
2 |
3-3/16 |
5-1/32 |
7-1/32 |
|
70 |
2 |
3-3/16 |
5-1/32 |
7-1/32 |
|
96 |
2 |
3-7/16 |
4-7/8 |
6-7/8 |
|
160 |
2 |
3-7/16 |
4-7/8 |
6-7/8 |
Spring Extend/Return: Spring
extend/return cylinders are available in standard stroke lengths up
to four inches. Cylinder ZB dimensions increases by one inch
whenever spring return cylinders are specified.
Weights and theoretical forces of
cylinders: Multiply factors by the air pressure.
|
Model |
Bore |
Push Power Factor |
Pull Power Factor |
Base |
Approx. Weight per Inch Stroke |
Max Spring Force |
|
12 |
1-1/4 |
1.23 |
1.12 |
1 |
0.25 |
10.5 |
|
24 |
1-3/4 |
2.4 |
1.96 |
2.8 |
0.40 |
47.5 |
|
30 |
2 |
3.14 |
2.69 |
3.1 |
0.45 |
47.5 |
|
49 |
2-1/2 |
4.91 |
4.47 |
3.6 |
0.50 |
47.5 |
|
70 |
3 |
7.07 |
6.62 |
4.6 |
0.60 |
47.5 |
|
96 |
3-1/2 |
9.62 |
8.84 |
9.4 |
0.90 |
48.7 |
|
160 |
4-1/2 |
15.9 |
15.12 |
12.5 |
1.00 |
48.7 |
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