This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU63X80SN, 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 SU63X80SN is a double-acting profile-type standard cylinder with a Ø63mm bore and 80mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU63X80SN, which matches its bore, stroke, force and mounting.
The AirTAC SU63X80SN is a discontinued double-acting profile-type cylinder with an 80 mm stroke and 63 mm bore. It delivers 1559 N push force at 0.5 MPa through a 3/8" port. AirTAC replaced this unit with the SAU63X80SN, a direct replacement retaining the exact bore, stroke, output force, port size, and SC-series mounting compatibility.
This unit features an NBR seal (-N) suitable for -20 to +70 C, and a piston magnet (-S) for legacy CS1-B/DS1-B switches. The SAU upgrade switches to CMSG/DMSG/EMSG sensors and adds a SAUF valve-integrated option. Note that air cushions only decelerate; use an external rod lock to hold loads.
| Model | Airtac SU63-100 Standard Cylinder SU63X80SN |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU63X80SN |
| Bore size | Ø63 mm |
| Stroke | 80 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 SAU63X80SN 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 SAU63X80SN 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. |
| ×80 | 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 medium-weight cartons off a main belt line using 1559 N of thrust at 0.5 MPa, with the 80 mm stroke clearing the side guide rails.
Secures aluminum extrusions during machining operations, taking advantage of the NBR seals and compact profile body to fit tight fixture spaces.
Raises and lowers a physical stop gate for accumulating pallets, relying on the 3/8" port for rapid 30-800 mm/s cycling.
To replace this discontinued SU63X80SN, order the SAU63X80SN. Confirm your 3/8" port, M16x1.5 rod thread, and SC-series mounts (LB/FA/FB/CA/CB) carry over directly. Because this SKU has a magnet (-S), you must upgrade your sensors: the old CS1-B/DS1-B switches will not fit the SAU groove, so migrate to CMSG/DMSG/EMSG. If sizing alternatives, a 50 mm bore yields 982 N push at 0.5 MPa, while an 80 mm bore yields 2513 N. If you need self-switching, explore the SAUF variant with its built-in 4M solenoid valve. For load holding, remember the cushion only decelerates; add a pilot-operated check valve to prevent drift.
Replacement checklist
Yes, the SU63X80SN is discontinued. The direct replacement is the AirTAC SAU63X80SN. It shares the identical 63 mm bore, 80 mm stroke, 1559 N force, 3/8" port, and SC-series mounting, so it drops right into the same application.
At 0.5 MPa it pushes 1559 N and pulls 1402 N. Push force is 2182 N at 0.7 MPa, 2805 N at 0.9 MPa, with a theoretical max of 318 kgf at 1.0 MPa. Because this SKU has a magnet (-S), it used legacy CS1-B/DS1-B switches; the SAU replacement requires the newer CMSG/DMSG/EMSG sensor family.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU63X80SN replacement — usually within 7-8 hours.