This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAUD80X400 — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAUD80X400 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 SUD80X400
The AirTAC Airtac SUD Series Double Rod Cylinder SUD80X400 is a double-acting profile-type standard cylinder with a Ø80mm bore and 400mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the drop-in replacement is the SAUD80X400, which matches its bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke400 mm
- Port size3/8"
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAUD80X400
About the Airtac SUD Series Double Rod Cylinder SUD80X400
The AirTAC SUD80X400 is a double-acting, double-rod profile cylinder featuring a 80mm bore and 400mm stroke. A rod exits both ends on one piston, meaning both faces use the rod-side area and push and pull force are equal at 2268N @0.5MPa, 3175N @0.7MPa, and 4082N @0.9MPa. This model is discontinued and end-of-life; the exact drop-in replacement is the SAUD80X400, which matches the 3/8 inch port, M20x1.5 rod thread, and 28mm adjustable air cushion at each end.
The SAUD upgrade uses current CMSG/DMSG/EMSG sensors where this legacy model used CS1-B/DS1-B switches, and the SAU family adds an SAUF built-in-valve variant. This non-magnetic SKU cannot take a switch. For sizing, the safe working load is roughly 1361N (60 percent of the 0.5MPa force), yielding a vertical lift capacity of about 116kg with a 2:1 margin. A plain cylinder drifts on air loss, so use an external rod lock for held loads.
Airtac SUD Series Double Rod Cylinder SUD80X400 Technical Specifications
| Model | Airtac SUD Series Double Rod Cylinder SUD80X400 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUD80X400 |
| Bore size | Ø80 mm |
| Stroke | 400 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 SAUD80X400 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 SAUD80X400 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 SUD80X400
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×400 | 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 SUD80X400 Is Used
Dual-Tool Machining Station
Drives two opposing machining heads from one piston, utilising the equal both-ways force to deliver 3175N @0.7MPa on both extension and retraction strokes.
Anti-Rotation Transfer Gate
The twin-rod architecture prevents mechanical twist during long 400mm transfers, ensuring precise alignment without needing external linear bearings.
Symmetric Push-Pull Divertor
Synchronises opposing diverting arms on a packaging line, using the rod-side area on both faces to match push and pull dynamics exactly.
Replacing the Airtac SUD Series Double Rod Cylinder SUD80X400 with the SAUD80X400
To replace the discontinued SUD80X400, select the drop-in SAUD80X400 to retain the identical 80mm bore, 400mm stroke, equal both-ways force, 3/8 inch port, and SC-series FA/LB mounting. When sizing both ways, verify force against neighbouring bores, noting the 80mm delivers 2268N @0.5MPa and 3175N @0.7MPa equally in both directions. A double rod is right when you need anti-rotation stability or must drive two tools from one piston. Because this SKU lacks a magnet (-S), it cannot support sensing; the SAUD takes CMSG/DMSG/EMSG sensors. For this 400mm stroke, add external guides to prevent rod bending and side-load damage.
Replacement checklist
- ✓ Same bore / stroke → SAUD80X400
- ✓ 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 SUD80X400 FAQ
Yes, the SUD80X400 is discontinued. The exact drop-in replacement is the SAUD80X400, which matches the 80mm bore, 400mm stroke, equal both-ways force, 3/8 inch port, and FA/LB mounting.
Force is equal both ways at 2268N @0.5MPa, 3175N @0.7MPa, and 4082N @0.9MPa. Operating speed is 30-800mm/s. The 3/8 inch port and 28mm adjustable cushion manage deceleration near stroke end.
Related AirTAC SAU Cylinders
Request a Quote for the SAUD80X400
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