This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAUD100X250 — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAUD100X250 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 SUD100X250
The AirTAC Airtac SUD Series Double Rod Cylinder SUD100X250 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 SAUD100X250, which matches its bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke250 mm
- Port size1/2"
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAUD100X250
About the Airtac SUD Series Double Rod Cylinder SUD100X250
The AirTAC SUD100X250 is a discontinued double-acting double-rod profile cylinder delivering equal force in both directions (3681 N at 0.5 MPa). Because a rod exits both ends on the single piston, the effective area is identical on extension and retraction, yielding 5153 N at 0.7 MPa and 6626 N at 0.9 MPa. The extruded aluminium profile barrel is shorter than a standard cylinder of the same bore, and this specific SKU has no magnet, meaning it cannot accept a magnetic switch. The bore dictates a 1/2" port with an M20x1.5 rod thread, operating at 30-800 mm/s with a 29 mm adjustable air cushion at each end.
As this SUD100X250 is end-of-life, the exact drop-in replacement is the SAUD100X250, which matches the 100mm bore, 250mm stroke, equal-both-ways force, 1/2" port, and Basic/FA/LB mounting. The SAUD upgrade uses current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B switches, and the SAU family adds an SAUF built-in-valve variant. For sizing, the 3681 N output at 0.5 MPa gives a safe working load of roughly 2209 N (60 percent of rated force) or a vertical lift capacity of about 188 kg with a 2:1 margin. Note that a plain cylinder drifts 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 SUD100X250 Technical Specifications
| Model | Airtac SUD Series Double Rod Cylinder SUD100X250 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUD100X250 |
| 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 SAUD100X250 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 SAUD100X250 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 SUD100X250
| 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 SUD100X250 Is Used
Dual-Tool Machining Station
Drives two opposing machining heads from a single piston, utilising the equal both-ways force to ensure consistent cutting pressure on extension and retraction.
Anti-Rotation Lift Assembly
Lifts and lowers a guided vertical platen using both rods to prevent twist, safely moving a 188 kg payload with a 2:1 margin at 0.5 MPa.
Symmetric Transfer Gate
Shifts a diverter gate across a belt where the equal push and pull force prevents jerky motion, with the 29 mm cushion decelerating the load at each end.
Replacing the Airtac SUD Series Double Rod Cylinder SUD100X250 with the SAUD100X250
To replace the discontinued SUD100X250, select the SAUD100X250 drop-in, which preserves the 100mm bore, 250mm stroke, 1/2" port, and Basic/FA/LB mounting. When sizing both ways, verify the equal-both-ways force (3681 N at 0.5 MPa) meets your needs; if marginally short, the neighbouring bores (80mm or 63mm) offer lower forces (2268 N or 1402 N at 0.5 MPa), while this 100mm bore is the maximum profile option. Choose a double-rod cylinder when you need anti-rotation stability, the ability to drive two tools from one piston, or a back rod to carry a sensor cam. Because this specific SKU lacks a magnet (-S), it cannot take sensors; the SAUD upgrade supports CMSG/DMSG/EMSG sensors. For strokes of 300mm or longer, carefully manage side-load guide alignment to prevent rod binding.
Replacement checklist
- ✓ Same bore / stroke → SAUD100X250
- ✓ 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 SUD100X250 FAQ
Yes, the SUD100X250 is discontinued. The exact drop-in replacement is the SAUD100X250, which matches the 100mm bore, 250mm stroke, 1/2" port, and FA/LB mounting. The SAUD also uses current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B.
The SUD100X250 provides equal force both ways: 3681 N at 0.5 MPa, 5153 N at 0.7 MPa, and 6626 N at 0.9 MPa. It features a 1/2" port, an M20x1.5 rod thread, and a 29 mm adjustable cushion at each end.
Related AirTAC SAU Cylinders
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