Standard pneumatic
cylinders.

Profile-body, tie-rod and multi-mount short-stroke formats. Compare SI, SE, SC, SAI and MD-series configurations for the mounting, travel and interfaces of your machine.

Compare five series Review technical data
SI-series profile pneumatic cylinder from the product range
SI SeriesProduct range reference

Five series groups.
Compare the construction.

Start with the body and installation format. Open the selected series for its operating data, stroke options and configuration details.

Multi-mount cylinder product reference for the MD group

MD / MDD / MSD

MD multi-mount cylinder family; the same platform is also listed under compact cylinders. Compare MDD double-rod, MDJ adjustable-stroke and MSD/MTD single-acting configurations within this family.

View MD specifications Add to brief

Choose a body format.
Then check the fit.

Construction guides the comparison. Mounting dimensions, rod arrangement, ports and sensor fit still need to match the selected model.

Standard-cylinder construction overview
Series groupConstructionWhat to compare
SI Series Profile bodyMounting and sensor configuration, including double-rod and adjustable-stroke variants.
SE Series Profile bodyBody dimensions, port arrangement and the rod configuration for the installation.
SC Series Tie-rod bodyMounting and service access around the tie rods, with the required rod and cushioning arrangement.
SAI Series Profile with switch groovesSensor fit, mounting dimensions and the port size for the selected bore.
MD / MDD / MSD Multi-mount short-stroke bodyActing type and mounting surfaces. The listed MD stroke rows cover selected double-acting configurations.

A matching series name, bore and stroke do not establish dimensional interchangeability. Check the mounting drawing for the complete model.

Series-specific
technical data.

Open a series for its operating conditions, configuration and stroke selection. Check the complete model and mounting drawing before ordering.

SI SeriesOperating data · Stroke and port selection
SI Series – operating data and configuration
ParameterSpecification
FluidAir (filtered by 40 μm element)
Operating pressure0.15–1.0 MPa (1.5–10 bar)
Proof pressure1.5 MPa
Temperature−20–70°C
Speed range30–800 mm/s (32–125); 30–500 mm/s (160–200)
Stroke tolerance0–250 (+1.0); 251–1000 (+1.5); 1001–1500 (+2.0)
CushionVariable cushion
Port size32=1/8″, 40–50=1/4″, 63–80=3/8″, 100–125=1/2″, 160–200=3/4″
SeriesSI (double acting) / SID (double rod) / SIJ (adjustable stroke)
Bore (mm)32, 40, 50, 63, 80, 100, 125, 160, 200
MagnetS = With magnet; blank = Without magnet
ThreadPT (default); G / NPT optional

Scroll the table sideways to compare all stroke and port columns. Keyboard: focus the table area, then use the left and right arrow keys.

SI – stroke and port selection
Bore (mm)Port sizeListed standard strokes (mm)Max. standard stroke (mm)Maximum stroke (mm)
321/8″25 50 75 80 100 125 150 160 175 200 250 300 350 400 450 50010001800
401/4″25 50 75 80 100 125 150 160 175 200 250 300 350 400 450 500 600 700 80012001800
501/4″25 50 75 80 100 125 150 160 175 200 250 300 350 400 450 500 600 700 800 900 100012001800
633/8″25 50 75 80 100 125 150 160 175 200 250 300 350 400 450 500 600 700 800 900 100015001800
803/8″25 50 75 80 100 125 150 160 175 200 250 300 350 400 450 500 600 700 800 900 100015001800
1001/2″25 50 75 80 100 125 150 160 175 200 250 300 350 400 450 500 600 700 800 900 100015001800
1251/2″25 50 75 80 100 125 150 160 175 200 250 300 350 400 450 500 600 700 800 900 100015001800
1603/4″25 50 75 80 100 125 150 160 175 200 250 300 350 400 450 500 600 700 800 900 100015002000
2003/4″25 50 75 80 100 125 150 160 175 200 250 300 350 400 450 500 600 700 800 900 100015002000

Stroke availability depends on the complete model, acting type and options. Confirm the configuration and mounting drawing before ordering.

SE SeriesOperating data · Stroke and port selection
SE Series – operating data and configuration
ParameterSpecification
FluidAir (filtered by 40 μm element)
Operating pressure0.15–1.0 MPa (1.5–10 bar)
Proof pressure1.5 MPa
Temperature−20–70°C
Speed range30–800 mm/s (32–100); 30–500 mm/s (125)
Stroke tolerance0–250 (+1.0); 251–1000 (+1.5); 1001–1500 (+2.0)
CushionVariable cushion
Port size32=1/8″, 40–50=1/4″, 63–80=3/8″, 100–125=1/2″
SeriesSE / SED (double rod) / SEJ (adjustable stroke)
Bore (mm)32, 40, 50, 63, 80, 100, 125
MagnetS = With magnet; blank = Without magnet
ThreadPT (default); G optional

Scroll the table sideways to compare all stroke and port columns. Keyboard: focus the table area, then use the left and right arrow keys.

SE – stroke and port selection
Bore (mm)Port sizeListed standard strokes (mm)Max. standard stroke (mm)Maximum stroke (mm)
321/8″25 50 75 80 100 125 150 160 175 200 250 300 350 400 450 50010001800
401/4″25 50 75 80 100 125 150 160 175 200 250 300 350 400 450 500 600 700 80012001800
501/4″25 50 75 80 100 125 150 160 175 200 250 300 350 400 450 500 600 700 800 900 100012001800
633/8″25 50 75 80 100 125 150 160 175 200 250 300 350 400 450 500 600 700 800 900 100015001800
803/8″25 50 75 80 100 125 150 160 175 200 250 300 350 400 450 500 600 700 800 900 100015001800
1001/2″25 50 75 80 100 125 150 160 175 200 250 300 350 400 450 500 600 700 800 900 100015001800
1251/2″25 50 75 80 100 125 150 160 175 200 250 300 350 400 450 500 600 700 800 900 100015001800

Stroke availability depends on the complete model, acting type and options. Confirm the configuration and mounting drawing before ordering.

SC SeriesOperating data · Stroke and port selection

SC tie-rod cylinder selection

External tie rods join the barrel and end covers. The catalog reference separates SC single rod, SCD double rod and SCJ adjustable stroke in 32–250 mm bores from the SCT multi-position range in 32–100 mm bores.

Use the series reference to compare bore-specific ports, speed, seal codes, stroke limits and dimensions. SCT requires two stroke fields and its own installation drawing. Confirm the complete offered model and current drawing before ordering.

View full series specifications and dimension references

SAI SeriesOperating data · Stroke and port selection

SAI cylinder selection

Compare SAI single rod, SAID double rod and SAIJ adjustable stroke. The catalog reference separates the standard 32–200 mm range from SAIL locking and SAIF valve-equipped configurations.

Use the series reference for bore-specific speed, ports, strokes, mounting and variant limits. Confirm the complete offered code and current dimensioned drawing before ordering.

View full series specifications and dimension references

MD / MDD / MSDOperating data · Stroke and port selection

MD multi-mount cylinders

The MD family also appears in the compact-cylinder range. Use the same MD model reference for acting type, bore, stroke, mounting and ports.

Review the MD platform and distinguish MK configurations

Review the mounting.
Leave room for motion.

Check the complete cylinder, its accessories and the air connections within the machine. The selected model and installation determine the final arrangement.

AI concept of a foot-mounted profile cylinder connected to a guided carriage, with blue air lines clear of the piston rod
Installation clearance · AI-generated concept
New machine

Define the motion, moving load, orientation and space around the cylinder. Record the required speed and position feedback.

Replacement

Record the complete model, bore and stroke. Compare mounting centres, rod thread, port positions and sensor fit with the existing installation.

Profile body or tie-rod
Compare SI, SE and SAI when a profile body suits the machine envelope. Use the SC tie-rod layout when its mounting and service access match the installation. A series name alone does not confirm replacement dimensions.
Match bore, stroke and ports together
Select bore for required thrust at the available working pressure. Check the stroke and port row for that bore: larger SI and SAI sizes use different port sizes and speed limits from the smaller models.
Choose rod and cushioning arrangement
Double-rod and adjustable-stroke variants change the installation envelope. SI, SE, SC and SAI use variable cushioning; the MD short-stroke platform uses bumper cushioning.
Plan feedback and fittings
Specify the magnet option when position switches are required. Confirm switch mounting, selected port thread and pipe clearance before freezing the machine drawing.

Check the details.
Prepare the requirement.

Use the new-machine and replacement checklists alongside the selected cylinder data.

Common questions.

Are all standard-cylinder series dimensionally interchangeable?

Fit must be checked against the selected cylinder drawing. Compare mounting centres, rod thread, body length, port locations and accessory dimensions; a common bore and stroke do not establish interchangeability.

How do I choose SI, SE or SAI?

Start with the machine mounting arrangement and bore requirement. SI and SAI include larger bore sizes, while the SAI switch-groove arrangement helps when sensor mounting is a key requirement. Compare the actual drawing and switch before ordering.

Is proof pressure an operating pressure?

No. Operating pressure and proof pressure are separate ratings. Size and run the actuator within its operating range. Proof pressure is a test reference and is not an operating setpoint.

What is needed to confirm a replacement cylinder?

Supply the complete existing model code, bore, stroke, acting type, mounting drawing, port thread and sensor details. Include the moving load, orientation and speed for a new mechanism.

Bring the cylinder
details together.

Record the complete series and acting type, bore, stroke and mounting. Add the port thread, sensor needs, quantity and schedule for your next discussion.

Create a cylinder brief

Copy or download your component requirements.

Cylinder requirement
Model and motion
Series / acting type / bore / stroke
Fit and interfaces
Mounting / rod end / ports / sensors
Application and order
Load / orientation / quantity / schedule