This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU80X540, 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 SU80X540 is a double-acting profile-type standard cylinder with a Ø80mm bore and 540mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU80X540, which matches its bore, stroke, force and mounting.
The AirTAC SU80X540 is a discontinued double-acting profile-type cylinder with an 80mm bore and 540mm stroke. Delivering 2513N push force at 0.5MPa, it uses an extruded aluminium barrel that is shorter than an ISO 15552 cylinder of the same bore. The direct replacement is the SAU80X540, matching the bore, stroke, 3/8 port, and SC-series mounting.
The SAU upgrade introduces CMSG/DMSG/EMSG sensors and a SAUF built-in-valve option the SU lacked. This non-magnet SKU cannot take a sensor. Note that air cushions only decelerate; use an external rod lock for load holding.
| Model | Airtac SU63-100 Standard Cylinder SU80X540 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU80X540 |
| Bore size | Ø80 mm |
| Stroke | 540 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 SAU80X540 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 SAU80X540 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. |
| ×540 | 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 pallets on a packaging line, using the 2513N push force to divert loads at 0.5MPa operating pressure reliably.
Ejects formed metal parts from a press bed, relying on the adjustable 28mm air cushions to decelerate the rod smoothly.
To replace this SU80X540, order the SAU80X540. Confirm the 3/8 port, M20x1.5 rod thread, and SC-series mounting (LB/FA/FB/CA/CB) are retained. Because this is a non-magnet SKU, it cannot accept a sensor; if sensing is needed, specify an SAU-S model and use CMSG/DMSG/EMSG switches. For the 540mm stroke, use an external guide to prevent rod bending under side loads. If you need higher force, the 100mm bore offers 3927N push at 0.5MPa; if lower force is acceptable, the 63mm bore provides 1559N. The plain cylinder does not hold load without air; add a pilot-operated check valve. The SAUF variant integrates a valve if needed.
Replacement checklist
Yes, the SU80X540 is discontinued. The direct replacement is the AirTAC SAU80X540. It shares the same 80mm bore, 540mm stroke, 3/8 port, output force, and SC-series mounting accessories. The body profile is unchanged, so it fits the same application directly.
It delivers 2513N push and 2268N pull at 0.5MPa, 3518N push at 0.7MPa, and a theoretical max of 513kgf at 1.0MPa. This specific SKU lacks a magnet and 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 SAU80X540 replacement — usually within 7-8 hours.