This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU63X90S, 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 SU63X90S is a double-acting profile-type standard cylinder with a Ø63mm bore and 90mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU63X90S, which matches its bore, stroke, force and mounting.
The AirTAC SU63X90S is a discontinued double-acting profile-type cylinder with a 63mm bore and 90mm stroke. Delivering 1559N push force at 0.5MPa, it features a 3/8" port and an extruded aluminum body that is more compact than same-bore ISO 15552 units. AirTAC replaced this unit with the SAU63X90S, a direct replacement retaining the exact bore, stroke, force, port size, and SC-series mounting.
This SU63X90S includes a piston magnet for legacy CS1-B/DS1-B switches, whereas the SAU successor uses current CMSG/DMSG/EMSG sensors. The SAU line also introduces a SAUF variant with a built-in 4M solenoid valve that the SU series lacked.
| Model | Airtac SU63-100 Standard Cylinder SU63X90S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU63X90S |
| Bore size | Ø63 mm |
| Stroke | 90 mm |
| Acting type | Double acting |
| Port size | 3/8" |
| Rod thread | M16×1.5 |
| 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, 21 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SU datasheet (now discontinued). The SAU63X90S carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 1559 N | 1402 N |
| 0.7 MPa | 2182 N | — |
| Max (@1.0 MPa) | 318 kgf | |
The SAU63X90S 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). |
|---|---|
| 63 | Bore size in mm. |
| ×90 | 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 cartons off a main conveyor belt using 1559N of thrust at 0.5MPa, with the 90mm stroke covering standard package widths.
Halts empty pallets on a gravity roller line; the 79kg vertical lift capacity ensures reliable braking under moderate inertia.
Secures medium workpieces in machining fixtures, using the compact profile body to save space in tight cell layouts.
To replace the SU63X90S, order the SAU63X90S, verifying the 90mm stroke, 3/8" port, M16x1.5 rod thread, and SC-series mounting. Because this SKU has the -S magnet, note the sensor family changes from CS1-B/DS1-B to CMSG/DMSG/EMSG. If you need higher force, the 80mm bore offers 2513N push at 0.5MPa; if lower force is acceptable, the 50mm bore provides 982N. A plain cylinder drifts on air loss—the cushion only decelerates—so add an external rod lock or pilot-operated check valve for held loads. The SAUF valve-integrated option can simplify cycling if you lack a separate valve.
Replacement checklist
Yes, the SU63X90S is discontinued. The direct replacement is the AirTAC SAU63X90S. It matches the 63mm bore, 90mm stroke, 1559N force, 3/8" port, and SC-series mounting, so it fits the same application directly.
At 0.5MPa it pushes 1559N and pulls 1402N; at 0.7MPa it pushes 2182N, with a theoretical max of 318kgf at 1.0MPa. The -S suffix means it has a magnet for legacy CS1-B/DS1-B switches; the SAU replacement uses CMSG/DMSG/EMSG sensors instead.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU63X90S replacement — usually within 7-8 hours.