This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU80X620S, 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 SU80X620S is a double-acting profile-type standard cylinder with a Ø80mm bore and 620mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU80X620S, which matches its bore, stroke, force and mounting.
The AirTAC SU80X620S is a discontinued double-acting profile-type cylinder with an 80 mm bore and 620 mm stroke. Delivering 2513 N push force at 0.5 MPa, its direct replacement is the SAU80X620S, matching the bore, stroke, output, 3/8" port, and SC-series mounting.
The SAU upgrade modernizes the sensor groove from legacy CS1-B/DS1-B switches to current CMSG/DMSG/EMSG sensors, and introduces the SAUF built-in 4M valve option.
| Model | Airtac SU63-100 Standard Cylinder SU80X620S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU80X620S |
| Bore size | Ø80 mm |
| Stroke | 620 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 SAU80X620S 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 SAU80X620S 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. |
| ×620 | 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 off a main conveyor line using the 2513 N push force at 0.5 MPa, with the 620 mm stroke reaching across the transfer bed.
Ejects dense molded parts from a press bed, utilizing the 80 mm bore profile body and adjustable 28 mm end cushions to decelerate the load smoothly.
To replace this SU80X620S, order the SAU80X620S, confirming the 80 mm bore, 620 mm stroke, 3/8" port, M20x1.5 rod thread, and SC-series mounting. Because this SKU includes a magnet (-S), note the sensor family changes from CS1-B/DS1-B to CMSG/DMSG/EMSG. For sizing both ways, a 63 mm bore yields 1559 N push at 0.5 MPa, while a 100 mm bore yields 3927 N. The cylinder does not hold load without live air; use an external rod lock or pilot-operated check valve for holding. With a 620 mm stroke, prevent rod bending by supporting the load against side-load with an external guide. The SAUF variant adds a self-switching valve if needed.
Replacement checklist
Yes, the AirTAC SU80X620S is discontinued. The direct replacement is the SAU80X620S. It shares the exact same 80 mm bore, 620 mm stroke, output force, 3/8" port, and SC-series mounting accessories, so it fits the same application.
The 80 mm bore 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 CMSG/DMSG/EMSG sensors.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU80X620S replacement — usually within 7-8 hours.