This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU80X85S, 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 SU80X85S is a double-acting profile-type standard cylinder with a Ø80mm bore and 85mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU80X85S, which matches its bore, stroke, force and mounting.
The AirTAC SU80X85S is a discontinued double-acting profile cylinder with an 80 mm bore and 85 mm stroke. It delivers 2513 N push force at 0.5 MPa through a 3/8" port. AirTAC replaced this unit with the SAU80X85S, a direct upgrade retaining the exact bore, stroke, output force, and SC-series mounting.
The extruded aluminum profile is more compact than an ISO 15552 cylinder of the same size. This -S SKU includes a piston magnet for legacy CS1-B/DS1-B switches, but the SAU replacement upgrades you to current CMSG/DMSG/EMSG sensors.
| Model | Airtac SU63-100 Standard Cylinder SU80X85S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU80X85S |
| Bore size | Ø80 mm |
| Stroke | 85 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 SAU80X85S 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 SAU80X85S 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. |
| ×85 | 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-duty press operations requiring 2513 N of push force at 0.5 MPa for seating bearings.
Actuates heavy diverters on packaging lines, utilizing the 85 mm stroke to push full pallets sideways.
To replace this SU80X85S, order the SAU80X85S. Confirm the 80 mm bore, 85 mm stroke, 3/8" port, M20x1.5 rod thread, and SC-series mounting. Because this has a magnet (-S), note the sensor family changes from CS1-B/DS1-B to CMSG/DMSG/EMSG. If sizing neighbors, a 63 mm bore yields 1559 N push at 0.5 MPa, while a 100 mm bore yields 3927 N. For load holding, know that a plain cylinder drifts on air loss—the cushion only decelerates; use an external rod lock or pilot-operated check valve for secure holding. The SAU line also offers a SAUF variant with a built-in 4M solenoid valve the SU lacked.
Replacement checklist
Yes, the SU80X85S is discontinued. The direct replacement is the SAU80X85S. It shares the same 80 mm bore, 85 mm stroke, 3/8" port, output force, and SC-series mounting. You also gain the option of the SAUF variant with a built-in valve.
It delivers 2513 N push and 2268 N pull at 0.5 MPa, 3518 N push at 0.7 MPa, and a theoretical max of 513 kgf at 1.0 MPa. This -S model uses legacy CS1-B/DS1-B switches; the SAU replacement requires current CMSG/DMSG/EMSG sensors.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU80X85S replacement — usually within 7-8 hours.