This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU80X340, 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 SU80X340 is a double-acting profile-type standard cylinder with a Ø80mm bore and 340mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU80X340, which matches its bore, stroke, force and mounting.
The AirTAC SU80X340 is a discontinued double-acting profile-type cylinder with an 80mm bore and 340mm stroke. Built with an extruded aluminium barrel, it is shorter and more compact than an ISO 15552 cylinder of the same bore, delivering 2513 N push force at 0.5 MPa. AirTAC replaced this end-of-life unit with the SAU80X340, a direct replacement retaining the exact 3/8" port, M20x1.5 rod thread, output force, and SC-series mounting compatibility.
When upgrading to the SAU80X340, the body, bore, stroke, and adjustable 28mm air cushions remain identical. Two key changes add value: the SAU line offers a new SAUF variant with a built-in 4M solenoid valve that the SU series lacked, and the sensor system is modernised. Because this specific SU SKU has no magnet, it cannot accept a magnetic switch; even if you upgrade to a sensed SAU-S model, you must switch from the legacy CS1-B/DS1-B switches to the current CMSG/DMSG/EMSG family.
| Model | Airtac SU63-100 Standard Cylinder SU80X340 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU80X340 |
| Bore size | Ø80 mm |
| Stroke | 340 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 SAU80X340 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 SAU80X340 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. |
| ×340 | 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 heavy pallets laterally across transfer lines using the 2513 N thrust at 0.5 MPa, with the 340mm stroke clearing wide conveyor frames.
Extracts formed parts from compact machinery where the shorter profile barrel saves space compared to standard ISO cylinders of the same bore.
To replace the discontinued SU80X340, order the SAU80X340 direct equivalent, verifying your 3/8" port threads (PT, G, or NPT) and SC-series mounting accessories (LB, FA, FB, CA, CB, TC). Because this specific SKU lacks a magnet (-S), it cannot support sensing; if your application requires position detection, specify an SAU80X340S and migrate to CMSG/DMSG/EMSG switches. For sizing alternatives, a neighbouring 63mm bore provides 1559 N push at 0.5 MPa, while a 100mm bore offers 3927 N. Note that a plain cylinder drifts on air loss—the cushions only decelerate end-of-stroke—so use an external rod lock or pilot-operated check valve for load holding. Finally, at 340mm stroke, prevent rod bending by guiding the load externally to avoid side-load forces.
Replacement checklist
Yes, the AirTAC SU80X340 is discontinued. The direct replacement is the SAU80X340. It shares the same 80mm bore, 340mm stroke, 3/8" port, output force, and SC-series mounting, so it fits the same application. The SAU body also adds an optional SAUF built-in 4M solenoid valve variant.
This double-acting cylinder 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; upgrading to a sensed SAU-S variant requires migrating from legacy CS1-B/DS1-B switches to the current CMSG/DMSG/EMSG family.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU80X340 replacement — usually within 7-8 hours.