This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU80X25SCA, 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 SU80X25SCA is a double-acting profile-type standard cylinder with a Ø80mm bore and 25mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU80X25SCA, which matches its bore, stroke, force and mounting.
The AirTAC SU80X25SCA is a discontinued double-acting profile-type cylinder with an 80mm bore and 25mm stroke. It delivers 2513N push and 2268N pull at 0.5MPa via a 3/8" port. The direct replacement is the SAU80X25SCA, matching the bore, stroke, force, port and SC-series CA mounting exactly. The extruded aluminum body is more compact than an ISO 15552 cylinder of the same bore.
The SAU upgrade introduces CMSG/DMSG/EMSG sensors, replacing the legacy CS1-B/DS1-B switches used on this -S SKU, and adds a SAUF built-in-valve variant. Note that air cushions only decelerate; use a rod lock for load holding.
| Model | Airtac SU63-100 Standard Cylinder SU80X25SCA |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU80X25SCA |
| Bore size | Ø80 mm |
| Stroke | 25 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 SAU80X25SCA 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 SAU80X25SCA 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. |
| ×25 | 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 high-force 25mm clamping tasks in machining fixtures, utilizing the 80mm bore's 2513N push at 0.5MPa to secure heavy steel workpieces.
Drives heavy-duty diverters on packaging lines, where the compact profile body and CA mount provide robust stopping power in tight transfer spaces.
Ejects dense molded parts from hydraulic presses, benefiting from the 2268N pull force and adjustable 28mm cushions for smooth end-of-stroke deceleration.
To replace this SU80X25SCA, order the SAU80X25SCA. Verify the 80mm bore, 25mm stroke, 3/8" port, M20x1.5 rod thread, and CA mounting. Because this SKU has a magnet (-S), you must upgrade to CMSG/DMSG/EMSG sensors since the old CS1-B/DS1-B switches are obsolete. If sizing neighbors, a 63mm bore yields 1559N push at 0.5MPa, while a 100mm bore yields 3927N. For load holding on air loss, add an external rod lock or pilot-operated check valve, as cushions only decelerate. The SAUF valve-integrated option can simplify plumbing if needed.
Replacement checklist
Yes, the AirTAC SU80X25SCA is discontinued. The direct replacement is the SAU80X25SCA, which shares the same 80mm bore, 25mm stroke, 3/8" port, 513kgf max force, and SC-series CA mounting. You also gain the option of the SAUF built-in-valve variant.
At 0.5MPa it provides 2513N push and 2268N pull, 3518N push at 0.7MPa, and a 513kgf maximum at 1.0MPa. Because this is an -S magnet model, the legacy CS1-B/DS1-B switches are obsolete; 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 SAU80X25SCA replacement — usually within 7-8 hours.