This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU80X400, 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.

The AirTAC Airtac SU63-100 Standard Cylinder SU80X400 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 direct replacement is the SAU80X400, which matches its bore, stroke, force and mounting.
The AirTAC SU80X400 is a discontinued double-acting profile-type cylinder with an 80mm bore and 400mm stroke. It delivers 2513N push force at 0.5MPa via a 3/8" port. The direct replacement is the SAU80X400, matching the body, stroke, force, port, and SC-series mounting.
This extruded aluminum profile is more compact than an ISO 15552 cylinder of the same bore. Note this non-magnet SKU cannot take a sensor, and the SAU upgrade switches to CMSG/DMSG/EMSG switches while adding a SAUF valve option.
| Model | Airtac SU63-100 Standard Cylinder SU80X400 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU80X400 |
| 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 SAU80X400 carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 kgf | |
The SAU80X400 produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
| 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.
Pushes heavy pallets sideways off a high-speed conveyor line using its 2513N thrust at 0.5MPa, with external guides handling the 400mm reach.
Knocks finished metal stampings out of a press die, relying on the 28mm adjustable air cushions to decelerate the rapid 400mm ejection stroke.
To replace this discontinued SU80X400, order the SAU80X400 direct equivalent, confirming the 80mm bore, 400mm stroke, 3/8" port, M20x1.5 rod thread, and SC-series mounting. If moving down, a 63mm bore gives 1559N push at 0.5MPa; sizing up to 100mm yields 3927N. Because this SKU lacks a magnet (-S), it cannot accept a sensor, whereas the SAU upgrade supports CMSG/DMSG/EMSG switches and a SAUF built-in valve. The 28mm cushions only decelerate the load, so fit an external rod lock or pilot check valve to hold position. For the 400mm stroke, use external guides to prevent rod bending under side loads.
Replacement checklist
Yes, the SU80X400 is discontinued. The direct replacement is the SAU80X400, which shares the identical 80mm bore, 400mm stroke, output force, 3/8" port, and SC-series mounting accessories.
At 0.5MPa it pushes 2513N and pulls 2268N; at 0.7MPa it pushes 3518N, with a theoretical max of 513kgf at 1.0MPa. This specific non-magnet SKU cannot take a sensor, but the SAU replacement uses CMSG/DMSG/EMSG switches.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU80X400 replacement — usually within 7-8 hours.