This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU63X750STC, 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 SU63X750STC is a double-acting profile-type standard cylinder with a Ø63mm bore and 750mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU63X750STC, which matches its bore, stroke, force and mounting.
The AirTAC SU63X750STC is a discontinued double-acting profile-type cylinder with a 63mm bore and 750mm stroke. It delivers 1559N push force at 0.5MPa through a 3/8" port. AirTAC replaced this unit with the SAU63X750STC, a direct replacement retaining the exact bore, stroke, output force, port size, and SC-series TC mounting interface.
The SAU upgrade introduces current CMSG/DMSG/EMSG sensors to replace this model's legacy CS1-B/DS1-B switches, and adds an optional SAUF built-in 4M valve. The extruded aluminum profile is shorter than an ISO 15552 cylinder of the same bore.
| Model | Airtac SU63-100 Standard Cylinder SU63X750STC |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU63X750STC |
| Bore size | Ø63 mm |
| Stroke | 750 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 SAU63X750STC 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 SAU63X750STC 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. |
| ×750 | 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.
Ideal for pushing heavy pallets off a main conveyor line over a 750mm travel distance, utilizing the 1559N push force at 0.5MPa.
Drives a large safety door or guard panel across a 750mm opening, taking advantage of the compact profile body and TC mounting.
To replace this discontinued SU63X750STC, order the SAU63X750STC. Confirm the 3/8" port, M16x1.5 rod thread, PT thread type, and the TC mounting accessory are retained. Because this unit has an -S magnet, note that your legacy CS1-B/DS1-B switches must change to CMSG/DMSG/EMSG sensors on the SAU. If you need load holding, be aware a plain cylinder drifts without live air—the cushions only decelerate; add an external rod lock or pilot-operated check valve. For the 750mm stroke, use an external guide to prevent rod bending and side-load damage. You can also explore the SAUF variant if you want a built-in valve. Sizing both ways: a 50mm bore gives 982N push @0.5MPa, while an 80mm bore yields 2513N.
Replacement checklist
Yes, the AirTAC SU63X750STC is discontinued. The direct replacement is the SAU63X750STC. It shares the same 63mm bore, 750mm stroke, 3/8" port, force output, and SC-series TC mounting, so it drops right into your existing application.
At 0.5MPa it pushes 1559N and pulls 1402N; at 0.7MPa it pushes 2182N, with a theoretical max of 318kgf at 1.0MPa. Because this is an -S model, it used legacy CS1-B/DS1-B switches; the SAU replacement requires upgrading to CMSG/DMSG/EMSG sensors.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU63X750STC replacement — usually within 7-8 hours.