This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU80X80SN, 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 SU80X80SN is a double-acting profile-type standard cylinder with a Ø80mm bore and 80mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU80X80SN, which matches its bore, stroke, force and mounting.
The AirTAC SU80X80SN is a discontinued double-acting profile-type cylinder with an 80mm bore and 80mm stroke. Delivering 2513N push and 2268N pull at 0.5MPa, it features a 25mm rod, M20x1.5 threads, and 3/8" ports. The direct replacement is the SAU80X80SN, matching the bore, stroke, force, port, and SC-series mounting.
When upgrading to the SAU80X80SN, note the sensor family changes: legacy CS1-B/DS1-B switches are replaced by current CMSG/DMSG/EMSG sensors. The SAU line also introduces the SAUF variant with a built-in 4M solenoid valve. The NBR seals support -20 to +70C, and standard air cushions only decelerate the piston without holding the load.
| Model | Airtac SU63-100 Standard Cylinder SU80X80SN |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU80X80SN |
| Bore size | Ø80 mm |
| Stroke | 80 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 SAU80X80SN 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 SAU80X80SN 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. |
| ×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.
Applies 2513N of push force at 0.5MPa to seat bearings and pins in automated machining lines, safely operating within the 1508N working load limit.
Strokes 80mm rapidly at 30-800mm/s to push heavy items between belts, relying on adjustable 28mm air cushions to decelerate at stroke ends.
To replace the SU80X80SN, order the SAU80X80SN, confirming the 80mm stroke, 3/8" port, M20x1.5 rod thread, and SC-series mounting. Your existing -S magnet setup requires new CMSG/DMSG/EMSG sensors, as the legacy CS1-B/DS1-B switches are obsolete. For sizing alternatives, a 63mm bore yields 1559N push at 0.5MPa, while a 100mm bore yields 3927N. The NBR seals handle standard -20 to +70C temps. Because the cylinder lacks a lock, use an external rod lock or pilot-operated check valve for load holding. The SAUF built-in-valve option can simplify actuation. At 80mm, the side-load risk is low, but always guide the rod to prevent bending.
Replacement checklist
Yes, the SU80X80SN is discontinued. The direct replacement is the SAU80X80SN. It provides identical 80mm bore, 80mm stroke, 2513N push force, 3/8" ports, and SC-series mounting compatibility. You will need to upgrade your sensors, as the SAU uses CMSG/DMSG/EMSG switches instead of the older CS1-B/DS1-B.
This 80mm bore cylinder features a 3/8" air port and M20x1.5 rod thread. It delivers 2513N push and 2268N pull at 0.5MPa, 3518N push at 0.7MPa, and a theoretical maximum of 513kgf at 1.0MPa.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU80X80SN replacement — usually within 7-8 hours.