This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAUD80X320S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAUD80X320S 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 SUD80X320S
The AirTAC Airtac SUD Series Double Rod Cylinder SUD80X320S is a double-acting profile-type standard cylinder with a Ø80mm bore and 320mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the drop-in replacement is the SAUD80X320S, which matches its bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke320 mm
- Port size3/8"
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAUD80X320S
About the Airtac SUD Series Double Rod Cylinder SUD80X320S
The AirTAC SUD80X320S is a discontinued double-acting double-rod profile cylinder featuring a 80mm bore and 320mm stroke. A rod exits both ends on one piston, meaning both faces use the rod-side area to deliver equal push and pull force of 2268N at 0.5MPa, 3175N at 0.7MPa, and 4082N at 0.9MPa. The exact drop-in replacement is the SAUD80X320S, which matches the 3/8 inch port, M20x1.5 rod thread, and FA/LB mounting. The extruded aluminum profile barrel is shorter than an ISO 15552 cylinder of the same bore.
With a 2268N force at 0.5MPa, the computed safe working load is approximately 1361N, translating to a vertical lift capacity of about 116kg with a 2:1 margin. 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 upgrade transitions to current CMSG/DMSG/EMSG sensors while retaining the 28mm adjustable air cushions. Note that a plain cylinder does not hold loads on air loss; the cushion only decelerates near stroke end, so an external rod lock is required for held loads.
Airtac SUD Series Double Rod Cylinder SUD80X320S Technical Specifications
| Model | Airtac SUD Series Double Rod Cylinder SUD80X320S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUD80X320S |
| Bore size | Ø80 mm |
| Stroke | 320 mm |
| Acting type | Double acting |
| Port size | 3/8" |
| 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, 28 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SU datasheet (now discontinued). The SAUD80X320S carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø80mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 kgf | |
The SAUD80X320S 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 SUD80X320S
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×320 | 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 SUD80X320S Is Used
Dual-Tool Transfer
Drives two opposing grippers simultaneously on a conveyor line, utilizing the equal both ways force to push and pull parts evenly.
Anti-Rotation Lift
Lifts a 116kg vertical payload using the twin rods to prevent platform twisting without requiring external linear bearings.
Symmetrical Clamping
Centers and clamps workpieces from both ends, using the back rod to carry a sensor cam for precise position feedback.
Replacing the Airtac SUD Series Double Rod Cylinder SUD80X320S with the SAUD80X320S
To replace the discontinued SUD80X320S, use the drop-in SAUD80X320S which preserves the 80mm bore, 320mm stroke, 3/8 inch port, and equal-both-ways force. When sizing both ways, verify force needs against neighboring bores (63mm or 100mm) but ensure the equal push/pull output fits your mechanism. A double rod is right when you need anti-rotation stability or want to drive two tools from one actuator. Mounting is limited to Basic, FA, and LB types (SC series compatibility only). Because this unit has the -S magnet, upgrade your legacy CS1-B/DS1-B sensors to CMSG/DMSG/EMSG on the SAUD. For this 320mm stroke, add external guides to prevent rod bending and manage side loads.
Replacement checklist
- ✓ Same bore / stroke → SAUD80X320S
- ✓ 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 SUD80X320S FAQ
Yes, the SUD80X320S is discontinued. The exact drop-in replacement is the SAUD80X320S, which matches the 80mm bore, 320mm stroke, 3/8 inch port, and FA/LB mounting. You must upgrade the legacy CS1-B/DS1-B sensors to current CMSG/DMSG/EMSG models on the SAUD.
The SUD80X320S features a 3/8 inch port and delivers equal force both ways: 2268N at 0.5MPa, 3175N at 0.7MPa, and 4082N at 0.9MPa. It operates at 30-800mm/s with adjustable 28mm cushions at each end.
Related AirTAC SAU Cylinders
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