Norgren NFPA Aluminum & Steel Cylinders User Manual
Page 11
Brookville, OH USA
Phone 937-833-4033
www.norgren.com
ACT-1-11
Series A & EA, NFPA Aluminum Decel-Air Cushioned Cylinder
Series J & EJ, NFPA Steel Decel-Ar Cushioned Cylinder
All Dimensions in Inches (mm)
In/
Cylinder Bore
Sec
1-1/2
2
2-1/2
3-1/4
4
5
6
7
8
10
12
6
558
990
1.798
3.488
5.418
9.370 14.972 20.040 20.858 44.070 72.500
12
136
244
442
860
1.338
2.318
3.708
5.166
7.600 10.892 17.894
18
60
106
190
374
582
1.014
1.620
2.260
3.152
4.748
7.782
24
32
58
104
204
320
558
888
1.244
1.738
2.598
2.828
30
20
36
64
126
198
344
550
774
1.082
1.602
2.606
36
13.4
24
43
84
132
232
366
518
726
1.062
1.712
42
9.4
16.6
29
58
92
162
258
362
514
734
1.176
48
6.8
11.4
20.8
42
66
118
186
262
374
524
830
54
4.6
8.6
10.8
30
48
86
136
194
276
378
590
Decel Cushioned Cylinder
Fully Cushioned Load Stopping Capacity in Pounds*
*Include piston rod wight in total load to be stopped.
NOTE:
• All dimensions not shown are per STD NFPA dimensions
• For cylinders with (1) Decel Cushion AOL dimension wil be “MB”-“J”.
Piston Rod Dia. Weights*
5/8"
- .30 lb. + 0.09 lb./in. stroke
1"
- .90 lb. + 0.22 lb./in. stroke
1-3/8" - 2.2 lb. + 0.42 lb./in. stroke
1-3/4" - 4.0 lb. + 0.68 lb./in. stroke
2"
- 5.5 lb. + 0.90 lb./in. stroke
2-1/2" - 10.1 lb. + 1.40 lb./in. stroke
Double Weight for double rod end cylinders
● The Decel Cushioned cylinder increases the kinetic
energy absorption capability by increasing the effective
cushion spear length in the cylinder.
● The Decel Cushioned cylinder increases the standard
cushion spear length by 100%, allowing an increase in
kinetic energy absorption capability by two times.
G
J
J
J
MB + Stroke
Decel Cushioned cylinder envelope dimensions are not NFPA
dimensionally interchangeable over the stroke length.
NOTE: See page ACT-1-8 for “Effect of Impact Dampening
Seals on Total Stroke of Cylinders,” and page ACT-1-19 for
Rod End Dimensions.
Cyl.
Add Stroke
Bore
G
J
MB
1-1/2
1-1/2
1
5-5/8
2
1-1/2
1
5-5/8
2-1/2
1-1/2
1
5-3/4
3-1/4
1-3/4
1-1/4
6-3/4
4
1-3/4
1-1/4
6-3/4
5
1-3/4
1-1/4
7
6
2
1-1/2
8
7
2
1-1/2
8-1/8
8
2
1-1/2
8-1/8
Basic Envelope Dimensions