Product Info  Linear actuator

Tsubaki's Linear Actuator includes electric cylinders and jacks that use high-quality in-house screws, and our original Zip Chain-driven Zip Chain Actuators.
Both the screw mechanism and the Zip Chain mechanism can be used in a wide range of applications such as high-speed and high-frequency operation and operation that requires high accuracy by making the best use of the features of the product.

※Zip Chain mechanism is our original technology in which two chains interlock like a zipper to form a single, strong column that can be used by 'pushing and pulling'.

Types of linear motion mechanism

Structural drawing

Zip chain mechanism

  • High speed
  • high-frequency
  • High durability
  • Compact

This mechanism uses Tsubaki original “Zip Chain” technology.

It is excellent in compactness and has the features of high speed, high frequency, and durability required for high-tact operation.

Two chains are interlocked to form a single column, enabling push-pull operation.

It is named Zip Chain as it engages like a zipper.
(Click here for a special website on the Zip Chain Mechanism. )

Structural drawing

Ball screw mechanism, trapezoidal screw mechanism

  • high-frequency
  • Large allowable load
  • Low noise

Ball screw mechanism

This mechanism is designed to operate at high efficiency by placing a steel ball between the screw shaft and nut to create rolling friction.

Compared to trapezoidal screw mechanisms, it is suitable for high-speed and high-frequency applications, making it suitable for assembly lines and other applications where productivity is required.

In addition, its high efficiency allows the drive source to be made compact.

The use of highly reliable internally manufactured ball screws makes it possible to predict operating life.

A ball screw with a longer lead per revolution is called a high-lead ball screw, which can achieve higher speeds at the same input rotation speed as a normal ball screw.

Trapezoidal screw mechanism

This mechanism operates by sliding friction between the screw shaft and nut, and is suitable for low-speed, low-frequency operation such as maintenance applications.

It has self-locking features not found in ball screw mechanisms, enabling load retention.

It is also economical due to its simple structure.

Tsubaki Linear actuator product line

Electric cylinder :Power Cylinder screws jack :
Linipower Jack
Ball screw lifting unit :
Linispeed Jack
Chain Meshing Type Actuators :
Zip Chain Actuator
Power Cylinder Linipower Jack Linispeed Jack Zip Chain Actuator
Type of mechanism Ball screw
Trapezoidal Screw
Ball screw
High Lead Ball Screw
Trapezoidal Screw Ball screw Zip Chain
Purpose Load push-pull Load push-pull Load retention Load push-pull Load push-pull
Features Integrated motor for easy wiring
Clean environment
Various screw types can be selected High speed, high frequency, low floor, long life High speed, high frequency, low floor, and long life that outperforms other mechanisms
Thrust Maximum 490kN 4.90kN~980kN 1.96kN~980kN 15kN~50kN 400N~2000N
Stroke Maximum 2000mm Maximum 2000mm Maximum 1500mm Maximum 2000mm
Speed and operation frequency Maximum speed :333mm/s
Percentage duty cycle :50%ED※1
Max. screw shaft speed :
 50~120mm/s※2
Allowable load hourly rate :
 30%ED
Max. screw shaft speed :
 40mm/s
Allowable load hourly rate :
 20%ED
Max. screw shaft speed :200mm/s
Allowable load hourly rate :100%ED※3
Maximum speed :1000mm
Percentage duty cycle :100%ED
Application examples
Tilting device

Tilting device

Stopper (link mechanism)

Stopper (link mechanism)

Table lifting

Table lifting

Rolling roll positioning

Rolling roll positioning

Traversa arm lift

Traversa arm lift

Pick-up robot lifting

Pick-up robot lifting

Stacking and dismounting

Stacking and dismounting

Pallet lifting

Pallet lifting

  • ※1 For ECO series servo type
  • ※2 Varies depending on screw type
  • ※3 Varies depending on conditions

Linear actuator product list

Linear actuators (electrical cylinders) are actuators that can be used with simple wiring.

An electric cylinder is a linear motion mechanism that moves a rod back and forth by converting the rotation of a prime mover into thrust force through a mechanism that combines a trapezoidal screw or ball screw and nut. It is mainly used to push and pull loads.

Compared to hydraulic and pneumatic cylinders, which are widely used, electric cylinders are a mechanism with many advantages in terms of energy efficiency, ease of handling, and ease of maintenance.
(Reference information :Advantages of replacing hydraulic and pneumatic mechanism )

Tsubaki power cylinders offer compact design, high-speed operation, and superior durability, contributing greatly to improved equipment productivity. In addition, the integrated motor simplifies electrical wiring and reduces installation man-hours. Power cylinders created by Tsubaki manufacturing technologies refined over more than half a century have demonstrated their capabilities in a wide range of industries and applications, including infrastructure, IT/semiconductor facilities, steel facilities, port facilities, environmental facilities, various inspection equipment, and automobile manufacturing facilities.

Various options are also available, including low-dust generation type suitable for clean environments, left-hand screw type for greater layout flexibility, and stainless steel screw type with excellent corrosion resistance (available only for some trapezoidal thread type models).

Application examples

Open/Close Up + Down Reversal Cap Handling Positioning
Open/Close Up + Down Reversal Cap Handling Positioning
  • ・Open/close hopper gate
  • ・Switching damper open/close
  • ・Open/close lids of various kilns, etc.
    ※ A thrust detection mechanism that can press at the end point is suitable.
  • ・Pantograph type lifting device
  • ・Lifting with fixed and moving pulleys
  • ・Lifting with multiple power cylinders operating synchronously
  • ・Reversing device for steel and packaged goods
  • ・Overturning of wire bobbin
  • ・Reversing furnace
  • ・Change of conveyor direction
  • ・Accumulate conveyor
  • ・Chucking and transplanting materials
  • ・Automatic equipment handling
  • ・Positioning and cutting device
  • ・Positioning and finishing equipment for corrugated paper, plated parts, etc.

U Series

Model No.  LPUB~/LPUC~

Electric cylinder "Power Cylinder U Series” with a rated thrust of 6 tons or more, which are compact and lightweight.
(Large thrust 58.8 kN or more )

  • ・Lightweight and compact :
    Thanks to newly developed special ball screws and bearings, we succeeded in reducing the total length by a max. of 10% and the mass 35% 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 new model with 50 tons rated thrust, which makes it easy to replace large hydraulic cylinders with a 250 mm inner diameter.
  • ・Improved 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.
Rated Thrust kN

58.8~490

Speed mm/s

50Hz:6.5~43
60Hz:7.8~52

Stroke mm

500~2000

U Series Multi Type

Model No.  LPUA□□□□B~ LPUC□□□□B~

The Multi Type Power Cylinder is capable of synchronizing multiple cylinders with one motor. (Large thrust 58.8 kN or more )

  • ・High-speed Operation :
    MTO products can achieve high-speed operation up to 150mm/s.
  • ・Safe :
    A thrust detection unit can be built-in to detect overload and protect the machine. (LPUC)
  • ・Rugged construction :
    The actuator area supporting the load and the reducer area are separated. Fluctuating loads will not affect the contact on the gear teeth.
  • ・Drive multiple units together :
    Using an input shaft with enough strength allows synchronous operation of multiple units.
  • ・Capable of oscillation :
    The input shaft and trunnion area have the same shaft center, allowing for swinging motion during interlocked operation.
Allowable Thrust kN

58.8~313

Speed mm/s

50Hz:6.5~43
60Hz:7.8~52

Stroke mm

500~2000

T Series

Model No.  LPTB~/LPTC~

Electric cylinder for medium thrust zone that can be used with AC (alternating current) power supply. (Medium thrust 39.2 kN or less )

  • ・Two safety mechanisms :
    You can choose the type according to the protection method. TB Type has a built-in wet slip clutch. The TC Type comes with a thrust detecting limit switch.
  • ・Wide variation :
    A wide range of standard models are available depending on the application, thrust, and speed.
    You can choose the thrust from between 2.45kN and 39.2 kN, and the speed from 9mm/s and 120mm/s.
  • ・Positive actuation :
    A highly-reliable safety device is built into all series so as to work effectively against overload.
  • ・Wide variety of options :
    Two types of stroke adjusting limit switches (external and internal types) and stroke sensors (potentiometer and rotary encoder types) are available, allowing for much easier control by a sequencer.
Rated Thrust kN

2.45~39.2

Speed mm/s

50Hz:9~100
60Hz:11~120

Stroke mm

200~1500

T Series Multi Type

Model No.  LPTB□□□□B~ LPTC□□□□B~

Capable of synchronizing multiple cylinders with one motor. (Medium thrust 39.2 kN or less )

  • ・Safe :
    A thrust detection unit can be built-in to detect overload and protect the machine. (LPTC)
  • ・Rugged construction :
    The actuator area supporting the load and the reducer area are separated. Fluctuating loads will not affect the contact on the gear teeth.
  • ・Drive multiple units together :
    Using an input shaft with enough strength allows synchronous operation of multiple units.
  • ・Capable of oscillation :
    The input shaft and trunnion area have the same shaft center, allowing for swinging motion during interlocked operation.
Allowable Thrust kN

4.94~39.2

Speed mm/s

72~120

Stroke mm

200~1500

Worm Series

Model No.  LPWB~

Worm series is the perfect power cylinder to replace hydraulic cylinders.

  • ・Worm Series LPWB provides large thrust by using a high precision worm gear and a highly efficient ball screw manufactured with technology based on nearly a century of manufacturing tradition.
  • ・Clean :
    There are no hydraulic pumps or pipes, so no worries about oil leakage from the connecting parts.
  • ・Easy installation :
    No need for hydraulic pumps and pipes. Can be operated just by connecting a three-phase power source.
  • ・Accurate control :
    Changing speeds and accurate positioning are possible by using an inverter.
  • ・Low cost :
    Reduces costs by significantly reducing the number of parts.
  • ・High load capacity :
    Can be used with large loads like jacks can thanks to its special steel alloy.
Rated Thrust kN

49~490

Speed mm/s

5~72(Reference )

Stroke mm

200~2000(Reference )

G Series

Model No.  LPG~

Electric cylinder for small thrust zone that can be used with AC (alternating current) power supply. (Thrust 3.00 kN or less )

  • ・Wide variation :
    Approximately 9000 models are standardized, including 630 basic types and models with optional parts.
  • ・Stable, high efficiency, longevity :
    High efficiency has been achieved by employing nut material that has excellent compatibility with the aligning trapezoidal screw thread (centralizing screw) specially designed for the Power Cylinder, which provides stability and a long operating life.
  • ・The type of screw can be selected according to the application. :
    The Power Cylinder G Series basically uses a trapezoidal screw. For high frequency or long life operation, consider using the ball screw type.
  • ・Silent operation :
    Significantly reduced noise during startup and stopping through a quiet DC brake motor drive.
  • ・Excellent speed stability :
    Operations at a steady velocity is possible that is impervious to load fluctuations.
Rated Thrust N

700~3.00k

Speed mm/s

50Hz:25~200
60Hz:30~240

Stroke mm

100~1200

F Series

Model No.  LPF~

Small thrust type electric cylinder for driving by DC (battery) power supply.

  • ・Compact, lightweight, efficient use of installation space :
    Compact design with the right angled connection between the actuating part and motor unit. Due to the right angled two-way clevis holes, you can choose from four mounting directions so as not to interfere with another machine.
  • ・Outdoor Use :
    This unit is ideal for outdoor applications, such as farming machines and vertical parking carousels.
  • ・Wide variety of options :
    Variety of options are available such as a position detecting unit and an overload detecting unit.
Rated Thrust N

100~6.00k

Speed mm/s

8~54

Stroke mm

50~600

Eco Series Servo Type

Model No.  LPES~

Can support high-speed and high-precision operation so that the performance of the servo motor can be maximized.

  • ・Maximizing Servomotor Performance :
    The combination of a high-efficiency ball screw and highly rigid lightweight disk coupling maximizes the servomotor performance.
  • ・High Stopping Accuracy :
    The high-precision ball screw delivers high stopping accuracy. Repeated positioning accuracy is within ±0.02mm, and stopping accuracy is within ±0.1mm.
  • ・Benefits of Precision Planetary Reducer Type :
    By downsizing the servomotor you can save on initial costs with smaller peripheral devices such as an amplifier, while reducing running costs through lower power consumption.
  • ・Allows selection of the servomotor :
    Desired servomotors can be installed. Please specify the servomotor manufacturer or mount code when asking for a quotation.
  • ・High-Speed, Wide Thrust Range :
    Can be used at high-speed and in a wide thrust range.
Rated Thrust N

150~15.0k

Speed mm/s

1~333

Stroke mm

300~1000

Eco Series CDS Type

Model No.  LPE~

Ideal for use in two-point operation such as air cylinders. Features self-contained functions that detect overcurrent.

  • ・Self-contained :
    With a spring built in the linear actuating part and the CDS (Current Detective System) mounted in the terminal box, overcurrent is detected even when press contact stops or in the case of overload, and the motor is automatically stopped.
    During stoppage, the pressing force is maintained by the built-in spring.
  • ・Lower running costs, environmentally-friendly :
    This electrically operated type consumes electricity only when used, allowing for economical operations. There is no need to operate a compressor all the time like in an air system, so a significant reduction in running costs can be expected.
  • ・High-Frequency Operation & Long Life :
    Capable of a maximum of 15 times/min high-frequency operation. With the ball screw, a long service life of 1 million strokes can be expected.
  • ・Simple operation :
    Can be operated just by connecting a three-phase power source. No limit switch for stroke adjustment is required, saving you the hassle of wiring. Also compatible with long-distance wiring.
Rated Thrust N

250~1.00k

Speed mm/s

200V 50Hz:90~160
200V 60Hz:90~190
220V 60Hz:110~200

Stroke mm

100~600

Mini Series

Model No.  LP~

This series is suitable for automation of small forces around us.
It can serve as your arm.

  • ・Runs on a single phase power supply.
  • ・Designed for longevity
  • ・Wide variety of options
Rated Thrust N

98.0~392

Speed mm/s

50Hz:9~34
60Hz:11~42

Stroke mm

100~300

Please refer to the following documents for details on the use of each series.

Advantages of replacing hydraulic and pneumatic cylinders with electric cylinders (power cylinders)

Power saving effect and cost performance

Power saving effect and cost performance

Hydraulic and pneumatic cylinders, which are widely used, tend to use large amounts of electricity for reasons such as requiring pumps and compressors to run longer than they actually do and being inefficient because of the complexity of the system.

Power cylinders, on the other hand, consume power only during operation, and because the system is simple and efficient, there is a large difference in power consumption for the same amount of work.

Improved ease of installation and maintenance

The electrification simplifies the system configuration, making installation easy.

Power Cylinders can be driven just by connecting the cables. No piping or pumps required for hydraulic or pneumatic cylinders are needed, and there is no worry about oil leakage from the body or piping.

In addition, there is no need for periodic oil changes or removal of sludge (deposits) that accumulate in the piping, which are required with hydraulic cylinders, so maintenance costs and labor can be significantly reduced.

Hydraulic and pneumatic cylinders have complex system configurations

Hydraulic and pneumatic cylinders have complex system configurations

Power cylinders have a simple system configuration

Power cylinders have a simple system configuration

Improved controllability and safety

In hydraulic and pneumatic applications, ambient temperature affects thrust. In particular, hydraulic cylinders require appropriate oil temperature control because the viscosity of the oil is affected by the ambient temperature, which in turn affects the thrust.

In addition, the operating speed varies depending on the size of the load. Therefore, it is a difficult mechanism to stabilize at a constant speed and thrust at any temperature and load.

On the other hand, power cylinders always provide stable thrust and speed.

Power Cylinders can be operated at a stable speed regardless of installation/operation direction. In addition, the motor with brake eliminates the need to supply electricity while the load is being held, eliminating the need to worry about falling accidents such as during power outages.

With power cylinders, speed is stable regardless of load conditions

With power cylinders, speed is stable regardless of load conditions

Stopped position load can be held by the brake

Stopped position load can be held by the brake

Guide for replacing hydraulic cylinders with electric cylinders (power cylinders)

Click here for a tool that calculates the thrust from your current hydraulic cylinders and narrows down the list of compatible power cylinders.

Quick guide to hydraulic cylinder specifications and models compatible with power cylinders

Cylinder inner diameter
mm
Piston rod diameter
mm
Working pressure
7MPa 10MPa 14MPa 21MPa
100 56 LPT4000 LPT4000 LPU6000 LPU8000
125 70 LPT4000 LPU6000 LPU8000 LPU12000
140 80 LPU6000 LPU8000 LPU12000 LPU16000
160 90 LPU6000 LPU12000 LPU12000 LPU22000
180 100 LPU8000 LPU12000 LPU16000 LPU32000
200 110 LPU12000 LPU16000 LPU22000 LPU32000
224 125 LPU12000 LPU16000 LPU32000 LPU50000
250 140 LPU16000 LPU22000 LPU32000 LPU50000