This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUD100X25S, with the same bore, stroke, output force, port and mounting, so it fits the same application. The SAU replacement uses the same profile body, bore, stroke, force and SC-series mounting. It moves to the current CMSG / DMSG / EMSG sensor switches (the SU used CS1-B / DS1-B) and adds the SAUF valve-integrated option.
Airtac SUD Series Double Rod Cylinder SUD100X25S
The AirTAC Airtac SUD Series Double Rod Cylinder SUD100X25S is a double-acting profile-type standard cylinder with a Ø100mm bore and 25mm stroke, 1/2" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAUD100X25S, which matches its bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke25 mm
- Port size1/2"
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAUD100X25S
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SUD Series Double Rod Cylinder SUD100X25S
The AirTAC SUD100X25S is a double-acting, double-rod profile cylinder featuring an extruded aluminium barrel that is shorter than an ISO 15552 unit of the same bore. A rod exits both ends on a single piston, meaning both faces use the rod-side area and push/pull force is equal both ways at 3681 N @0.5 MPa, 5153 N @0.7 MPa, and 6626 N @0.9 MPa. This discontinued model carries an -S magnet for legacy CS1-B/DS1-B switches, has a 1/2" port, M20x1.5 rod thread, and 29 mm adjustable cushions. The direct replacement is the SAUD100X25S.
Because the second rod drives a sensor cam and resists rotation, double-rod designs excel in multi-tool tasks. Note that air cushions only decelerate near stroke end; an external rod lock or pilot-operated check valve is required to hold loads on air loss. The SAUD upgrade keeps the SC-series FA/LB mounting but switches to CMSG/DMSG/EMSG sensors and adds a built-in valve option.
Airtac SUD Series Double Rod Cylinder SUD100X25S Technical Specifications
| Model | Airtac SUD Series Double Rod Cylinder SUD100X25S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUD100X25S |
| Bore size | Ø100 mm |
| Stroke | 25 mm |
| Acting type | Double acting |
| Port size | 1/2" |
| Rod thread | M20×1.5 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Adjustable, 29 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SU datasheet (now discontinued). The SAUD100X25S carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø100mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3927 N | 3682 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 kgf | |
The SAUD100X25S produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SUD Series Double Rod Cylinder SUD100X25S
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×25 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Legacy SU-family variants: SUD (double rod), SUJ (adjustable stroke) — each maps to its SAU equivalent (SUD→SAUD, SUJ→SAUJ). The current SAU line adds the SAUF valve-integrated option.
Where the Airtac SUD Series Double Rod Cylinder SUD100X25S Is Used
Dual-Tool Machining Station
Drives two opposing tools simultaneously from a single piston, utilising the equal both ways force to machine parts on both ends without stroke variance.
Anti-Rotation Transfer Gate
Uses the twin exiting rods to prevent mechanical rotation during lateral transfers on a conveyor, ensuring precise 100mm bore alignment without external guides.
Symmetric Push-Pull Divertor
Employs the back rod to carry a sensor cam for legacy CS1-B/DS1-B switches while the front rod pushes loads, equalising force for stable package routing.
Replacing the Airtac SUD Series Double Rod Cylinder SUD100X25S with the SAUD100X25S
To replace the discontinued SUD100X25S, specify the SAUD100X25S direct: it matches the 100mm bore, 25mm stroke, 1/2" port, and equal-both-ways force. Size both directions by checking neighbouring bores against the 3681 N @0.5 MPa baseline. Choose a double-rod when you need anti-rotation or a back rod to carry a sensor cam. Mount using FA or LB brackets (SC-series only). For the -S magnet, swap legacy CS1-B/DS1-B switches for CMSG/DMSG/EMSG sensors. Since stroke is under 300mm, side-load guide deflection is minimal.
Replacement checklist
- ✓ Same bore / stroke → SAUD100X25S
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S): sensor family CS1-B → CMSG
- ✓ Mounting reused (FA/FB/CA/CB/LB)
- ✓ Need a built-in valve? → SAUF
Airtac SUD Series Double Rod Cylinder SUD100X25S FAQ
Yes, the SUD100X25S is discontinued. The direct replacement is the SAUD100X25S, which matches the 100mm bore, 25mm stroke, 1/2" port, and FA/LB mounting. You must upgrade the -S magnet sensors from legacy CS1-B/DS1-B to current CMSG/DMSG/EMSG switches.
Because it is a double-rod cylinder, force is equal both ways: 3681 N @0.5 MPa, 5153 N @0.7 MPa, and 6626 N @0.9 MPa.
Related AirTAC SAU Cylinders
Request a Quote for the SAUD100X25S
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