This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU80X75SCB, 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 SU80X75SCB is a double-acting profile-type standard cylinder with a Ø80mm bore and 75mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU80X75SCB, which matches its bore, stroke, force and mounting.
The AirTAC SU80X75SCB is a discontinued double-acting profile-type cylinder with an 80 mm bore and 75 mm stroke, delivering 2513 N push force at 0.5 MPa. Its extruded aluminum barrel makes it shorter than an ISO 15552 cylinder of the same bore while retaining SC-series mounting compatibility via the CB clevis bracket. AirTAC replaced this legacy unit with the SAU80X75SCB, a direct replacement matching the exact bore, stroke, 3/8" port, M20x1.5 rod thread, and 513 kgf maximum force.
The SAU upgrade introduces current CMSG/DMSG/EMSG sensors to replace this model's legacy CS1-B/DS1-B switches, and offers the new SAUF built-in 4M solenoid valve variant. Note that a plain cylinder drifts on air loss; the adjustable 28 mm cushions only decelerate near stroke end, so use an external rod lock for held loads.
| Model | Airtac SU63-100 Standard Cylinder SU80X75SCB |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU80X75SCB |
| Bore size | Ø80 mm |
| Stroke | 75 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 SAU80X75SCB 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 SAU80X75SCB 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. |
| ×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.
Drives a CB-mounted clevis arm to push heavy cartons off a main conveyor belt, utilizing the 2513 N push force at 0.5 MPa to overcome side friction.
Ejects formed metal components from a stamping die, relying on the 28 mm adjustable air cushions to decelerate the 25 mm rod smoothly at the end of the 75 mm stroke.
Acts as a heavy-duty stop gate for incoming pallets on a roller conveyor, absorbing kinetic impact while maintaining position via the robust SC-series CB mount.
To replace the SU80X75SCB, order the SAU80X75SCB with the identical 80 mm bore, 75 mm stroke, 3/8" port, and CB mounting. Confirm your thread standard (PT, G, or NPT) during ordering. Because this SKU includes the -S magnet, you must upgrade your legacy CS1-B/DS1-B switches to the current CMSG/DMSG/EMSG sensor family used on the SAU. If your application needs self-switching, consider the SAUF variant with its integrated 4M solenoid valve, an option the original SU line lacked. For force verification, the 80 mm bore yields 2513 N push and 2268 N pull at 0.5 MPa; if you need less force, stepping down to a 63 mm bore provides 1559 N push, while a 100 mm bore offers 3927 N. Remember that the cushion only decelerates the piston; for vertical or suspended loads that must hold position without live air, install an external pilot-operated check valve or rod lock.
Replacement checklist
Yes, the AirTAC SU80X75SCB is discontinued. The direct replacement is the SAU80X75SCB. It shares the identical 80 mm bore, 75 mm stroke, 3/8" port, M20x1.5 rod thread, and SC-series CB mounting, so it fits the same application without mechanical modifications.
At 0.5 MPa it provides 2513 N push and 2268 N pull force, increasing to 3518 N push at 0.7 MPa, with a theoretical maximum of 513 kgf at 1.0 MPa. Because this model has the -S magnet, it originally used CS1-B/DS1-B switches; the SAU replacement requires upgrading to the current CMSG/DMSG/EMSG sensor family.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU80X75SCB replacement — usually within 7-8 hours.