This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU80X135, 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 SU80X135 is a double-acting profile-type standard cylinder with a Ø80mm bore and 135mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU80X135, which matches its bore, stroke, force and mounting.
The AirTAC SU80X135 is a discontinued double-acting profile-type cylinder with an 80 mm bore and 135 mm stroke. It delivers 2513 N push force at 0.5 MPa through a 3/8" port. AirTAC replaced this unit with the SAU80X135, a direct replacement retaining the exact bore, stroke, output force, port size, and SC-series mounting compatibility.
This extruded aluminium profile body is shorter than an ISO 15552 cylinder of the same bore. Note this non-magnetic SKU cannot accept a sensor. The SAU upgrade uses modern CMSG/DMSG/EMSG switches and introduces the SAUF built-in-valve option the SU line lacked.
| Model | Airtac SU63-100 Standard Cylinder SU80X135 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU80X135 |
| Bore size | Ø80 mm |
| Stroke | 135 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 SAU80X135 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 SAU80X135 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. |
| ×135 | 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.
Secures large metal castings during CNC machining using the 2513 N push force at 0.5 MPa, ensuring rigid workholding without deflection.
Pushes heavy loaded pallets off a main conveyor line, utilizing the 135 mm stroke to clear the transport lane efficiently.
Ejects dense packaged goods from packaging stations, handling the high kinetic energy of repetitive stop-and-go logistics cycles.
To replace the SU80X135, order the SAU80X135. Verify your 3/8" port, M20x1.5 rod thread, and SC-series mounting (LB/FA/FB/CA/CB) are unchanged. Because this is a non-magnetic SKU, it cannot accept a sensor; if you need position detection, the SAU replacement requires CMSG/DMSG/EMSG switches. For sizing alternatives, a 63 mm bore yields 1559 N push at 0.5 MPa, while a 100 mm bore yields 3927 N. A plain cylinder drifts without live air, so use an external rod lock or pilot-operated check valve for load holding. For applications needing self-switching, explore the SAUF variant with its integrated 4M solenoid valve.
Replacement checklist
Yes, the SU80X135 is discontinued. The direct replacement is the AirTAC SAU80X135. It shares the identical 80 mm bore, 135 mm stroke, 3/8" port, output force, and SC-series mounting, so it fits the same application directly.
The 80 mm bore uses a 3/8" port. It delivers 2513 N push and 2268 N pull at 0.5 MPa, 3518 N push at 0.7 MPa, and a theoretical maximum of 513 kgf at 1.0 MPa. The adjustable air cushion is 28 mm at both ends.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU80X135 replacement — usually within 7-8 hours.