This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU80X340S, 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 SU80X340S 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 SAU80X340S, which matches its bore, stroke, force and mounting.
The AirTAC SU80X340S is a discontinued double-acting profile cylinder with an extruded aluminum barrel and a 340 mm stroke. Delivering 2513 N push force at 0.5 MPa via a 3/8" port, it is replaced directly by the SAU80X340S. This direct upgrade matches the bore, stroke, force, and SC-series mounting, ensuring a seamless swap. The compact profile body is notably shorter than an ISO 15552 cylinder of the same bore.
Because this is an -S model, it has a piston magnet for legacy CS1-B/DS1-B switches; the SAU replacement requires current CMSG/DMSG/EMSG sensors. The SAU line also introduces the SAUF variant with a built-in 4M solenoid valve, an option the SU series never offered.
| Model | Airtac SU63-100 Standard Cylinder SU80X340S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU80X340S |
| 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 SAU80X340S 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 SAU80X340S 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.
Handles heavy pallet routing on packaging lines using the 2513 N push force, while the 340 mm stroke clears the conveyor lane for downstream traffic.
Pushes formed metal components out of hydraulic presses, relying on the 80 mm bore and 3/8" porting to deliver rapid, high-force ejection cycles.
To replace this discontinued SU80X340S, order the SAU80X340S direct equivalent. Verify your 3/8" port, M20x1.5 rod thread, and SC-series mounting hardware (LB/FA/FB/CA/CB) are retained. If moving down to a 63 mm bore, note the push force drops to 1559 N at 0.5 MPa; stepping up to 100 mm yields 3927 N. The -S magnet means you must upgrade sensors from the old CS1-B/DS1-B to the new CMSG/DMSG/EMSG family. At 340 mm, this long stroke risks rod bending under side loads—use an external guide to prevent jamming. A plain cylinder drifts on air loss; the cushion only decelerates, so add an external rod lock for held loads. Consider the SAUF if you need a built-in valve.
Replacement checklist
Yes, the SU80X340S is discontinued. The direct replacement is the AirTAC SAU80X340S. It shares the exact same 80 mm bore, 340 mm stroke, 2513 N output force at 0.5 MPa, 3/8" port, and SC-series mounting accessories, so it fits the same application directly.
This double-acting cylinder provides 2513 N push and 2268 N pull at 0.5 MPa, 3518 N push at 0.7 MPa, and a maximum theoretical force of 513 kgf at 1.0 MPa. Because this is an -S magnet model, it used legacy CS1-B/DS1-B switches; the SAU replacement requires upgrading to CMSG/DMSG/EMSG sensors.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU80X340S replacement — usually within 7-8 hours.