This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU80X75, 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 SU63-100 Standard Cylinder SU80X75 is a double-acting profile-type standard cylinder with a Ø80mm bore and 75mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU80X75, which matches its bore, stroke, force and mounting.
The AirTAC SU80X75 is a discontinued double-acting profile-type cylinder featuring an 80 mm bore and a 75 mm stroke. Delivering 2513 N of push force at 0.5 MPa, it utilized an extruded aluminum barrel that is shorter and more compact than an ISO 15552 cylinder of the same size. AirTAC replaced this end-of-life unit with the SAU80X75, a direct replacement retaining the exact bore, stroke, output force, 3/8" port, and SC-series mounting.
Because this specific SKU lacks a magnet, it cannot accept a position sensor. If sensing is required, the SAU80X75 upgrade uses modern CMSG, DMSG, or EMSG switches instead of the legacy CS1-B/DS1-B family. Note that a plain cylinder drifts without live air; use an external rod lock for load holding.
| Model | Airtac SU63-100 Standard Cylinder SU80X75 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU80X75 |
| Bore size | Ø80 mm |
| Stroke | 75 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 SAU80X75 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 SAU80X75 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. |
| ×75 | 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 packaged goods at 90 degrees on a sorting line using the 2513 N push force at 0.5 MPa to reliably overcome friction.
Acts as a robust end-of-line stop gate for loaded pallets, utilizing the 75 mm stroke and compact profile body to fit tight conveyor frames.
To replace the discontinued SU80X75, order the SAU80X75 direct equivalent, verifying your 3/8" port thread (PT, G, or NPT) and SC-series mounting hardware. If downsizing, a 63 mm bore yields 1559 N push at 0.5 MPa; if upsizing, a 100 mm bore provides 3927 N. This non-magnetic SKU cannot support switches, but if you need sensing, the SAU replacement requires CMSG/DMSG/EMSG sensors. The 28 mm adjustable cushions only decelerate the piston near stroke end—they will not hold a load on air loss, so add a pilot-operated check valve or rod lock for vertical safety. The SAU family also offers a SAUF variant with a built-in 4M solenoid valve for self-switching, an option the SU line never had.
Replacement checklist
Yes, the SU80X75 is discontinued. The direct replacement is the AirTAC SAU80X75. It shares the identical 80 mm bore, 75 mm stroke, 2513 N force at 0.5 MPa, 3/8" port, and SC-series mounting, so it bolts right in without modifications.
At 0.5 MPa it pushes 2513 N and pulls 2268 N; at 0.7 MPa it pushes 3518 N, with a theoretical max of 513 kgf at 1.0 MPa. This specific SKU has no magnet and cannot take a sensor. If you need sensing, the SAU80X75 replacement uses current CMSG, DMSG, or EMSG switches.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU80X75 replacement — usually within 7-8 hours.