This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU63X75STC, 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 SU63X75STC is a double-acting profile-type standard cylinder with a Ø63mm bore and 75mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU63X75STC, which matches its bore, stroke, force and mounting.
The AirTAC SU63X75STC is a discontinued double-acting profile-type cylinder with a 63mm bore and 75mm stroke. Delivering 1559N push force at 0.5MPa, it uses an extruded aluminum barrel and adjustable cushions, making it more compact than an ISO 15552 cylinder of the same bore. The direct replacement is the SAU63X75STC, matching the body, stroke, force, 3/8" port, and SC-series TC mounting.
This TC-mounted unit includes a piston magnet for legacy CS1-B/DS1-B switches, but the SAU replacement upgrades to CMSG/DMSG/EMSG sensors. The SAU line also adds a SAUF built-in-valve option the SU lacked. Note that cushions only decelerate; use an external rod lock for load holding.
| Model | Airtac SU63-100 Standard Cylinder SU63X75STC |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU63X75STC |
| Bore size | Ø63 mm |
| Stroke | 75 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 SAU63X75STC 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 SAU63X75STC 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. |
| ×75 | 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.
Uses the TC mount to pivot a 75mm stroke diverter arm, reliably pushing 79kg cartons at safe 935N working loads.
Deploys a 63mm bore stopper gate to halt heavy pallets, leveraging 1559N push force to absorb kinetic impact safely.
Shifts workpieces between parallel conveyor lines with compact 75mm strokes, reusing existing SC-series brackets.
To replace this discontinued SU63X75STC, order the SAU63X75STC ensuring your 3/8" port, M16x1.5 rod thread, and TC mounting interface match. Because this SKU has a magnet, you must upgrade your sensors from CS1-B/DS1-B to CMSG/DMSG/EMSG. If sizing alternatives, a 50mm bore yields 982N push @0.5MPa while an 80mm bore yields 2513N. At 75mm stroke, side-load rod-bending is minimal, but always guide the load. A plain cylinder drifts on air loss, so add a pilot-operated check valve for holding. If you need integrated air control, explore the SAUF variant.
Replacement checklist
Yes, the SU63X75STC is discontinued. The direct replacement is the SAU63X75STC, offering identical 63mm bore, 75mm stroke, 3/8" port, and TC mounting. You just swap the cylinder; the body and force match perfectly.
At 0.5MPa it pushes 1559N and pulls 1402N; at 0.7MPa it pushes 2182N, with a theoretical max of 318kgf at 1.0MPa. This -S model uses legacy CS1-B/DS1-B switches, but the SAU replacement requires CMSG/DMSG/EMSG sensors.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU63X75STC replacement — usually within 7-8 hours.