This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU80X165, 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 SU80X165 is a double-acting profile-type standard cylinder with a Ø80mm bore and 165mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU80X165, which matches its bore, stroke, force and mounting.
The AirTAC SU80X165 is a discontinued double-acting profile-type cylinder with an 80 mm bore and 165 mm stroke. It delivers a push force of 2513 N at 0.5 MPa through a 3/8" port. AirTAC replaced this unit with the SAU80X165, a direct alternative retaining the exact bore, stroke, output force, and SC-series mounting footprint.
The SAU upgrade adopts modern CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B switches, and introduces the SAUF built-in 4M valve variant the SU line lacked. This compact extruded-aluminium body is shorter than an ISO 15552 cylinder of the same bore.
| Model | Airtac SU63-100 Standard Cylinder SU80X165 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU80X165 |
| Bore size | Ø80 mm |
| Stroke | 165 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 SAU80X165 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 SAU80X165 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. |
| ×165 | 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 heavy sheet metal assemblies in a press fixture, utilising the 2513 N push force at 0.5 MPa for firm holding during stamping operations.
Actuates a routing gate on a high-speed packaging line, where the compact profile body saves space compared to standard ISO cylinders.
To replace this discontinued SU80X165, order the SAU80X165 direct cylinder, confirming the 80 mm bore, 165 mm stroke, 3/8" port, M20x1.5 rod thread, and SC-series mounting. This SKU lacks a magnet, so it cannot accept a sensor; if sensing is needed, specify an SAU-S model and migrate to CMSG/DMSG/EMSG switches. For load holding, note that a standard cylinder drifts on air loss—the cushions only decelerate—so add an external rod lock or pilot-operated check valve for suspended loads. At 0.5 MPa the 80 mm bore yields 2513 N push and 2268 N pull force; stepping down to a 63 mm bore gives 1559 N push, while stepping up to 100 mm provides 3927 N. The SAUF valve-integrated option is available if you need self-switching.
Replacement checklist
Yes, the AirTAC SU80X165 is discontinued. The direct replacement is the SAU80X165. It shares the identical 80 mm bore, 165 mm stroke, 3/8" port, output force, and SC-series mounting accessories, so it fits the same application directly.
At 0.5 MPa it provides 2513 N push and 2268 N pull force; at 0.7 MPa it pushes 3518 N, and the theoretical max is 513 kgf at 1.0 MPa. A plain cylinder does not hold a load without live air—the cushions only decelerate. For load holding, use an external rod lock or pilot-operated check valve.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU80X165 replacement — usually within 7-8 hours.