This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAUD100X250S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAUD100X250S in place of this model. 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 SUD100X250S
The AirTAC Airtac SUD Series Double Rod Cylinder SUD100X250S is a double-acting profile-type standard cylinder with a Ø100mm bore and 250mm stroke, 1/2" air ports and adjustable end cushioning. This model is discontinued — the drop-in replacement is the SAUD100X250S, which matches its bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke250 mm
- Port size1/2"
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAUD100X250S
About the Airtac SUD Series Double Rod Cylinder SUD100X250S
The AirTAC SUD100X250S is a discontinued double-acting double-rod profile cylinder featuring a 100mm bore and 250mm stroke. A rod exits both ends on a single piston, meaning both faces use the rod-side area and push and pull force are equal at 3681N @0.5MPa, 5153N @0.7MPa, and 6626N @0.9MPa. It has a 25mm rod, M20x1.5 rod thread, 1/2" port, and 29mm adjustable cushions. The exact drop-in replacement is the SAUD100X250S, retaining the same body, bore, stroke, force, port, and FA/LB mounting.
This compact extruded aluminium profile barrel is shorter than an ISO 15552 cylinder of the same bore. The double-rod design provides anti-rotation stability and allows the back rod to carry a sensor cam for legacy CS1-B/DS1-B switches (the SAUD replacement uses current CMSG/DMSG/EMSG sensors). For sizing, the safe working load is roughly 2209N (about 60% of the 3681N @0.5MPa figure), and vertical lift capacity is approximately 188kg with a 2:1 margin. Note that a plain cylinder does not hold loads on air loss; the cushion only decelerates near stroke end, so use an external rod lock for held loads.
Airtac SUD Series Double Rod Cylinder SUD100X250S Technical Specifications
| Model | Airtac SUD Series Double Rod Cylinder SUD100X250S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUD100X250S |
| Bore size | Ø100 mm |
| Stroke | 250 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 SAUD100X250S 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 SAUD100X250S produces the same force from the same bore — a true drop-in on output. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SUD Series Double Rod Cylinder SUD100X250S
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×250 | 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 SUD100X250S Is Used
Twin-Tool Driving
Simultaneously operates two opposing mechanisms using both rod ends, ensuring equal force transmission of 3681N @0.5MPa in both directions.
Anti-Rotation Lifting
Lifts loads up to 188kg vertically with a 2:1 margin, relying on the dual rods to prevent piston rotation and maintain precise guidance.
Symmetrical Transfer
Pushes and pulls workpieces across a conveyor with identical 5153N @0.7MPa force, maintaining stable momentum without twisting.
Replacing the Airtac SUD Series Double Rod Cylinder SUD100X250S with the SAUD100X250S
To replace the discontinued SUD100X250S, use the drop-in SAUD100X250S, which matches the 100mm bore, 250mm stroke, 1/2" port, and FA/LB mounting. When sizing both ways, verify the equal push/pull force fits your application, or step to neighbouring bores (80mm or 63mm) if 3681N @0.5MPa is excessive. Choose a double-rod cylinder when anti-rotation stability is needed or when driving two tools simultaneously. For the -S magnet model, change from legacy CS1-B/DS1-B sensors to CMSG/DMSG/EMSG on the SAUD. Because the 250mm stroke is less than 300mm, side-load alignment is less critical, but always guide the load externally.
Replacement checklist
- ✓ Same bore / stroke → SAUD100X250S
- ✓ 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 SUD100X250S FAQ
Yes, the SUD100X250S is discontinued. The exact drop-in replacement is the SAUD100X250S, which shares the same 100mm bore, 250mm stroke, 1/2" port, and FA/LB mounting. You must upgrade the piston magnet sensors from legacy CS1-B/DS1-B to the current CMSG/DMSG/EMSG series.
Because it is a double-rod cylinder, force is equal both ways: 3681N @0.5MPa, 5153N @0.7MPa, and 6626N @0.9MPa. Operating speed ranges from 30-800mm/s. The safe working load is approximately 2209N.
Related AirTAC SAU Cylinders
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