This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU80X155, 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 SU80X155 is a double-acting profile-type standard cylinder with a Ø80mm bore and 155mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU80X155, which matches its bore, stroke, force and mounting.
The AirTAC SU80X155 is a discontinued double-acting profile-type cylinder with an 80mm bore and a nonstandard 155mm stroke. It delivers 2513N push force at 0.5MPa through a 3/8" port. The direct replacement is the SAU80X155, matching the bore, stroke, force, port and SC-series mounting.
This compact extruded-aluminium body is shorter than an ISO 15552 cylinder of the same bore. Note this non-magnetic SKU cannot take a sensor, and while the SAU upgrade retains the body, its valve-integrated SAUF variant is a new option the SU line lacked.
| Model | Airtac SU63-100 Standard Cylinder SU80X155 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU80X155 |
| Bore size | Ø80 mm |
| Stroke | 155 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 SAU80X155 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 SAU80X155 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. |
| ×155 | 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.
Drives medium-tonnage press fits for bushings or bearings, utilising the 2513N push force at 0.5MPa with adjustable end cushions to prevent impact damage.
Actuates heavy diverters or routing gates on conveyor lines, where the compact 80mm profile body saves space while delivering reliable kinetic output.
Folds heavy corrugated carton flaps prior to sealing, taking advantage of the 2268N pull force to overcome hinge resistance and guide the packaging smoothly.
To replace this SU80X155, order the SAU80X155 direct equivalent, verifying the 80mm bore, 155mm nonstandard stroke, 3/8" port and M20x1.5 rod thread. If sizing neighbours, a 63mm bore yields 1559N push at 0.5MPa, while a 100mm bore yields 3927N. Because this is a non-magnetic SKU, it cannot accept a sensor; the SAU family uses CMSG/DMSG/EMSG switches on its -S variants. The cushion only decelerates the load, so for holding a load on air loss, install an external rod lock or pilot-operated check valve. The SAUF variant adds a built-in 4M valve if self-switching is needed. For this 155mm stroke, ensure guide rails prevent rod-bending side loads.
Replacement checklist
Yes, the AirTAC SU80X155 is discontinued and end-of-life. The direct replacement is the SAU80X155. It provides identical 80mm bore, 155mm stroke, 2513N force, 3/8" port and SC-series mounting compatibility, fitting the same application footprint.
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-magnetic SKU cannot accept a sensor. The SAU replacement uses CMSG/DMSG/EMSG switches on its -S variants, whereas the legacy SU used CS1-B/DS1-B.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU80X155 replacement — usually within 7-8 hours.