This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU80X660S, 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 SU80X660S is a double-acting profile-type standard cylinder with a Ø80mm bore and 660mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU80X660S, which matches its bore, stroke, force and mounting.
The AirTAC SU80X660S is a discontinued double-acting profile-type cylinder with an 80 mm bore and 660 mm stroke. It delivers 2513 N push and 2268 N pull at 0.5 MPa, peaking at 513 kgf. AirTAC replaced this unit with the SAU80X660S, a direct upgrade retaining the exact 3/8" port, M20x1.5 rod thread, and SC-series mounting. You get identical output force and body dimensions without machining changes.
The extruded aluminum profile is more compact than an ISO 15552 cylinder of the same bore. Because this is an -S magnet model, it used legacy CS1-B/DS1-B switches; the SAU replacement requires current CMSG/DMSG/EMSG sensors. The SAU family also adds a SAUF built-in 4M valve option the SU line never had.
| Model | Airtac SU63-100 Standard Cylinder SU80X660S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU80X660S |
| Bore size | Ø80 mm |
| Stroke | 660 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 SAU80X660S 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 SAU80X660S 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. |
| ×660 | 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 pallets sideways on a packaging line using the 2513 N thrust at 0.5 MPa, with the 660 mm stroke clearing wide conveyors.
Ejects molded parts from a press, relying on the 28 mm adjustable air cushions at both ends to decelerate the 660 mm travel smoothly.
To replace this SU80X660S, order the SAU80X660S. Confirm your 3/8" port, M20x1.5 rod thread, PT/G/NPT thread standard, and SC-series mounting (LB/FA/FB/CA/CB) are unchanged. If relying on the -S magnet, note the sensor family changes from CS1-B/DS1-B to CMSG/DMSG/EMSG. For forces, the 80 mm bore yields 2513 N push at 0.5 MPa; dropping to a 63 mm bore gives 1559 N, while an 100 mm bore provides 3927 N. At 660 mm stroke, prevent rod bending by guiding the load externally to absorb side-load. A plain cylinder drifts without air; use an external rod lock or pilot-operated check valve for load holding, as cushions only decelerate. If valve integration is needed, explore the SAUF variant.
Replacement checklist
Yes, the SU80X660S is discontinued. The direct replacement is the SAU80X660S. It shares the same 80 mm bore, 660 mm stroke, 3/8" port, output force, and SC-series mounting, so it drops right into the same application.
It delivers 2513 N push and 2268 N pull at 0.5 MPa, 3518 N push at 0.7 MPa, and a max of 513 kgf at 1.0 MPa. Because this is an -S model, it used legacy CS1-B/DS1-B switches; the SAU replacement uses current CMSG/DMSG/EMSG sensors.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU80X660S replacement — usually within 7-8 hours.