This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU80X140, 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 SU80X140 is a double-acting profile-type standard cylinder with a Ø80mm bore and 140mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU80X140, which matches its bore, stroke, force and mounting.
The AirTAC SU80X140 is a discontinued double-acting profile-type cylinder with an 80 mm bore and 140 mm stroke. It delivers 2513 N push force at 0.5 MPa and features a 3/8" port with a 25 mm piston rod. AirTAC replaced this end-of-life unit with the SAU80X140, a direct alternative retaining the exact body dimensions, output force, port size and SC-series mounting.
The compact extruded aluminum barrel is shorter than a standard ISO 15552 cylinder of the same bore. Because this specific SKU lacks a magnet, it cannot accept a sensor; furthermore, the SAU family upgrades sensing to CMSG/DMSG/EMSG switches and introduces the SAUF built-in valve variant.
| Model | Airtac SU63-100 Standard Cylinder SU80X140 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU80X140 |
| Bore size | Ø80 mm |
| Stroke | 140 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 SAU80X140 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 SAU80X140 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. |
| ×140 | 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 the 2513 N push force at 0.5 MPa to seat bearings and pins into housings without overstressing lightweight aluminum fixtures.
Uses the 140 mm stroke to push heavy cartons off a main conveyor belt, safely handling loads near the 128 kg vertical lift threshold.
Acts as a robust end-stop for inbound pallets, absorbing kinetic energy through the 28 mm adjustable air cushions at both ends.
To replace the SU80X140, order the SAU80X140 and verify your 80 mm bore, 140 mm stroke, 3/8" port and M20x1.5 rod thread. If sizing alternatives, the adjacent 63 mm bore yields 1559 N push at 0.5 MPa, while the 100 mm bore provides 3927 N. Note this non-magnetic SKU cannot support sensing, whereas an -S SAU replacement uses modern CMSG/DMSG/EMSG switches instead of legacy CS1-B/DS1-B units. For automated actuation, explore the SAUF variant with its integrated 4M solenoid valve. The 140 mm stroke is under the 300 mm threshold, so rod-bending side loads are minimal. Finally, the air cushion only decelerates the piston; to prevent drift on air loss, install an external rod lock or pilot-operated check valve.
Replacement checklist
Yes, the AirTAC SU80X140 is discontinued and end-of-life. The direct replacement is the SAU80X140. It matches the 80 mm bore, 140 mm stroke, 2513 N force, 3/8" port and SC-series mounting, so it fits the same application directly.
It delivers 2513 N push and 2268 N pull at 0.5 MPa, 3518 N push at 0.7 MPa, and a theoretical maximum of 513 kgf at 1.0 MPa. Because this specific SKU has no magnet, it cannot accept a sensor; the SAU replacement uses CMSG/DMSG/EMSG switches for sensing.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU80X140 replacement — usually within 7-8 hours.