Enerpac Logo
Sign In
Cart

Cylinder Speed Charts

These charts will help you calculate the time required for an Enerpac cylinder to lift a load when powered by a 10,000 psi Enerpac hydraulic pump. The Cylinder Speed Chart can also be used to determine the pump type and model best suited for an application when you know the plunger speed required.

To determine:
Cylinder plunger speed
An RC-308 cylinder (30 ton) is powered by a ZE-5 pump. While lifting the load, the cylinder plunger will require 3.2 seconds to travel 1 inch. While extending towards the load, the cylinder plunger travels at .46 sec/in.

To determine:
Best matching pump
Your 30 ton cylinder needs to move a load at a speed of 6.50 sec/in. Simply go down from the top of the chart, to the value of 6.50 sec/in. Then follow the chart to the right to find that the ZE4 pump or ZU4 is most suitable for your application.

slide-rule-title
Your Selected Cylinder:
Quantity of Cylinders:
Cylinder Options
Pump Options

Number of Pump Handle Strokes per Inch of Cylinder Plunger Travel

  Hand Pumps5 ton10 ton15 ton25 ton30 ton50 ton75 ton100 ton
No
Load

Load
No
Load

Load
No
Load

Load
No
Load

Load
No
Load

Load
No
Load

Load
No
Load

Load
No
Load

Load
  P-3917715152121343443437373105105137137
  P-39227415521834104316732410530137
  P-80/84/8011721532153474311731610521137
  P-802/8421711512123434357371059137
  P-462/4641318111118123238255371

Seconds per Inch of Cylinder Plunger Travel

  Electric
  (speed based on 60 Hz)
5 ton10 ton15 ton25 ton30 ton50 ton75 ton100 ton
No
Load

Load
No
Load

Load
No
Load

Load
No
Load

Load
No
Load

Load
No
Load

Load
No
Load

Load
No
Load

Load
  0.5 hp Economy.303.0.676.7.949.41.515.51.919.53.333.24.847.76.261.9
  ZU4 Series.081.0.192.2.273.1.445.25.66.5.9511.11.415.91.820.7
  0.5 hp Submerged.403.0.906.71.39.42.115.52.619.54.433.26.447.78.361.9
  ZE3 Series.131.5.303.4.424.7.697.7.879.71.516.62.123.92.830.9
  ZE4 Series.091.0.212.2.293.1.485.2.606.51.011.11.515.91.920.6
  ZE5 Series.07.50.161.12.221.6.362.6.463.2.785.51.18.01.510.3
  ZE6 Series.07.30.15.67.21.94.341.5.431.9.743.31.14.81.46.2
  8000-Series.06.13.13.29.19.41.30.67.38.84.651.4.942.11.22.7
  Air
  (speed based on 100 psi air pressure)
5 ton10 ton15 ton25 ton30 ton50 ton75 ton100 ton
No
Load

Load
No
Load

Load
No
Load

Load
No
Load

Load
No
Load

Load
No
Load

Load
No
Load

Load
No
Load

Load
  XA-Series.054.01.19.01.612.62.620.63.226.05.544.28.063.610.382.5
  Turbo II Pump1.05.92.213.43.118.85.230.96.539.011.066.315.995.520.6123.9
  PA-1331.27.42.716.83.823.66.238.67.848.713.382.919.1119.324.8154.7
  PAM 10-Series.096.6.2114.9.2920.9.4834.3.6043.31.073.71.5106.01.9137.5
  ZA4 Series.07.74.161.7.222.4.363.9.464.9.788.31.111.91.515.5
  Gasoline5 ton10 ton15 ton25 ton30 ton50 ton75 ton100 ton
No
Load

Load
No
Load

Load
No
Load

Load
No
Load

Load
No
Load

Load
No
Load

Load
No
Load

Load
No
Load

Load
  PGM2 Atlas0.31.50.73.40.94.71.57.71.99.73.316.64.823.96.230.9
  ZG5 Series, Briggs0.080.590.191.30.271.90.443.10.563.90.956.61.49.51.812.4
  ZG5 Series, Honda0.150.590.341.30.471.90.773.10.973.91.76.62.49.53.112.4
  ZG6 Series0.070.300.150.670.210.940.341.50.431.90.743.31.14.81.46.2

No Load: indicates the speed at which the rod moves until it touches the load (1st stage).
 

Load: indicates the plunger speed as the load is lifted at a system pressure of 700 bar (2nd stage).
 

Formula V = A ÷ Q

V (sec/in) = A (in2) ÷ Q (in3/sec)

V = Cylinder plunger speed in seconds per inch

A = Cylinder effective area in square inches

Q = Pump oil flow in cubic inches per second