This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU80X650S, 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 SU80X650S is a double-acting profile-type standard cylinder with a Ø80mm bore and 650mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU80X650S, which matches its bore, stroke, force and mounting.
The AirTAC SU80X650S is a discontinued double-acting profile-type cylinder with an 80 mm bore and 650 mm stroke. Delivering 2513 N push force at 0.5 MPa via a 3/8" port, it is replaced directly by the SAU80X650S. This upgrade keeps the exact bore, stroke, output force, and SC-series mounting, making it a direct. The extruded aluminium body is more compact than an ISO 15552 cylinder of the same size.
The -S suffix denotes a piston magnet for legacy CS1-B/DS1-B switches; the SAU replacement transitions to current CMSG/DMSG/EMSG sensors. The SAU line also introduces the SAUF built-in 4M solenoid valve option, which the SU series lacked.
| Model | Airtac SU63-100 Standard Cylinder SU80X650S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU80X650S |
| Bore size | Ø80 mm |
| Stroke | 650 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 SAU80X650S 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 SAU80X650S 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. |
| ×650 | 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 laterally across conveyor lines using 2513 N of thrust at 0.5 MPa, with the 650 mm stroke clearing wide transport lanes.
Ejects formed metal or plastic parts from press beds, utilizing adjustable 28 mm air cushions to decelerate the 25 mm rod at stroke end.
To replace this SU80X650S, order the SAU80X650S, verifying the 80 mm bore, 650 mm stroke, 3/8" port, M20x1.5 rod thread, and PT/G/NPT thread choice. Because the -S magnet used legacy CS1-B/DS1-B switches, you must upgrade to CMSG/DMSG/EMSG sensors on the SAU. If you need integrated flow control, the SAUF variant adds a built-in valve the SU lacked. For sizing alternatives, dropping to a 63 mm bore yields 1559 N push at 0.5 MPa, while an 80 mm bore at 0.7 MPa provides 3518 N. A plain cylinder drifts on air loss—the cushion only decelerates—so use an external rod lock for held loads. Finally, the 650 mm stroke demands external guides to prevent rod bending under side loads.
Replacement checklist
Yes, the SU80X650S is discontinued. The direct replacement is the AirTAC SAU80X650S. It shares the identical 80 mm bore, 650 mm stroke, 3/8" port, output force, and SC-series mounting, so it fits the same application. You simply order the SAU80X650S.
The SAU80X650S provides 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. Because your SU model has the -S magnet for legacy CS1-B/DS1-B switches, the SAU replacement requires the current CMSG/DMSG/EMSG sensor family.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU80X650S replacement — usually within 7-8 hours.