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  • Power Cylinder

U Series Power Cylinder

Introducing the new smaller, lighter U Series Power Cylinder with more than 6 tons rated thrust

Launched June 1, 2017

A new power cylinder that succeeds in providing a smaller, lighter unit with better cost performance while maintaining the same performance of the previous model (T series).

U Series Power Cylinder
Rated thrust
58.8 to 215kN {6000 to 22000kgf}
6.5 to 52mm/s

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1. Features of U Series Power Cylinders

Lightweight and compact

Thanks to newly developed special ball screws and bearings, we succeeded in reducing the total length by a max. of 11% and the mass 40% compared with the previous model (T series). The smaller size and lighter weight makes it easy to replace hydraulic cylinders.

Complete line-up available

We added a model with a 22 ton rated thrust that we did not have previously. In addition, we will release 32 ton and 50 ton models in 2018. We can now replace hydraulic cylinders in the large thrust range.

Better cost performance
In addition to achieving cost reductions compared to previous models thanks to smaller and lighter parts, the power cylinder is electrical so it has much better power savings than hydraulic types, greatly reducing power consumption.

Comparison of power consumption with hydraulic cylinders

Annual power consumption comparison per unit (kWh/year)

2. 2. Two types of safety mechanisms for U Series Power Cylinders

Two types are available, depending on the safety mechanism

B type (with wet slip clutch)

A wet slip clutch is built in at the end of the reducer screw shaft. The use of a special lining provides protection during overloads.

U Series Power Cylinder B type structural diagram

C type (with thrust detection unit )

A thrust detection spring unit is built in to the bracket. It is effective during push/pull stopping or when electrical signals are required during overloads.

U Series Power Cylinder C type structural diagram

3. Reference Number System

LP U B 6000 L 5 V T1 LPCUJF
(1) (2) (3) (4) (5) (6) (7) (8) (9)
  1. (1) Power Cylinder
  2. (2) U series
  3. (3) Type: B = wet slip clutch, C= with thrust detection unit
  4. (4) Rated thrust
  5. (5) Speed: S, L, M, H
  6. (6) Nominal stroke
  7. (7) Voltage
  8. (8) Motor option
  9. (9) Option code

Rated thrust

6000 58.8kN {6000kgf}
8000 78.4kN {8000kgf}
12000 117kN {12000kgf}
16000 156kN {16000kgf}
22000 215kN {22000kgf}

Nominal stroke

5 500mm
10 1000mm
15 1500mm
20 2000mm


No code 200V class200/200/220V, 50/60/60Hz
V 400V class400/400/440V, 50/60/60Hz
V1 380V/50Hz
V2 380V/60Hz
V3 415V/50Hz
V4 460V/60Hz

Option code

L With two external limit switches for stroke adjustment*1
L3 With three external limit switches for stroke adjustment*2
K2,K4 Position detecting internal limit switch
P Potentiometer
R Rotary encoder
C Clevis*3
U U type end fitting (blank: standard)*4
J Bellows*5
F Symmetrically opposite model of motor terminal box and external limit switch*6
  • 1. This cylinder may be damaged during overstrokes. At minimum, we recommend attaching this OP (for position control).
  • 2. Please specify 4 or more mountings separately.
  • 3. Cannot combine with clevises and K2, K4, P, and R.
  • 4. I type end fittings are standard for the U series.
  • 5. The stroke is the same.
  • 6. The direction of the terminal box is the same.

4. Standard model list

Type Rated thrust
Nominal speed
Motor capacity
Rod travel per manual shaft revolution
rod torque
Nominal stroke
S 58.8k (33.3k)
6000} ({3400})
6.5/7.8 0.75 1.0 124
500, 1000
*1500 (Rated thrust: 33.3kN)
L 18/22 1.5 0.7
M 26/31 2.2 1.0
H 42/50 3.7 1.7
S 78.4k
10/12 1.5 1.2 166
500, 1000, 1500
L 20/24 2.2 0.8
M 30/36 3.7 1.2
H 43/52 5.5 1.7
L 117k (68.6k)
12000} ({7000})
10/12 2.2 1.2 333
500, 1000, 1500
*2000 (Rated thrust: 68.6kN)
M 18/22 3.7 2.2
H 30/36 5.5 1.2
L 156k
14.5/17.5 3.7 1.7 444
500, 1000, 1500, 2000
M 20/24 5.5 2.3
H 30/36 7.5 1.2
L 215k
14.5/17.5 5.5 2.9 915
500, 1000, 1500, 2000
M 20/24 7.5 3.2
H 30/35 11 3.5

Other thrust models are available. Contact a Tsubaki representative for more information.

When replacing the T series

U Series N type models compatible with the T Series mounting dimensions are available. Since the N type more than triples the expected travel distance of the ball screw over previous models, it contributes to reduced cylinder replacement frequency.

Reference Number System: LPUB6000LN5VT1LPCUJF-TK

■ N: N type (For replacement of the T series) ■ Please add "TK" to the end of the model number.