This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU80X55, 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 SU80X55 is a double-acting profile-type standard cylinder with a Ø80mm bore and 55mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU80X55, which matches its bore, stroke, force and mounting.
The AirTAC SU80X55 is a discontinued double-acting profile cylinder with an 80mm bore and 55mm stroke. Delivering 2513N push and 2268N pull at 0.5MPa, it uses a 3/8" port and M20x1.5 rod thread. AirTAC replaced this end-of-life unit with the SAU80X55, a direct replacement retaining the exact bore, stroke, output force, port size, and SC-series mounting compatibility.
Because this SKU lacks a magnet, it cannot accept a sensor. The SAU upgrade uses current CMSG/DMSG/EMSG switches and adds a SAUF built-in-valve option. Note that the air cushion only decelerates; use an external rod lock for load holding.
| Model | Airtac SU63-100 Standard Cylinder SU80X55 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU80X55 |
| Bore size | Ø80 mm |
| Stroke | 55 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 SAU80X55 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 SAU80X55 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. |
| ×55 | 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.
Actuates routing gates on high-throughput distribution lines, utilizing the 2513N push force at 0.5MPa to reliably pivot heavy pallets without bounce.
Drives bushings and bearings into housings on an assembly carousel, where the 55mm stroke and adjustable 28mm cushions ensure smooth, controlled deceleration.
Deploys a physical stop block to halt incoming pallets on a gravity roller conveyor, safely absorbing kinetic energy using the 80mm profile body.
To replace this discontinued SU80X55, order the SAU80X55 direct equivalent, confirming the 80mm bore, 55mm stroke, 3/8" port, and PT thread. Since this specific SKU has no magnet, it cannot support sensing. If sensing is needed on the new unit, specify the -S option and migrate from legacy CS1-B/DS1-B to CMSG/DMSG/EMSG switches. The SAU also offers a SAUF variant with a built-in 4M solenoid valve. For loads requiring holding on air loss, add a pilot-operated check valve, as cushions only decelerate. If upsizing, the 100mm bore yields 3927N push at 0.5MPa; downsizing to 63mm provides 1559N.
Replacement checklist
Yes, the AirTAC SU80X55 is discontinued. The direct replacement is the SAU80X55. It shares the identical 80mm bore, 55mm stroke, 3/8" port, output force, and SC-series mounting, so it bolts right in. The SAU line also adds a SAUF variant with a built-in valve.
This double-acting cylinder provides 2513N push and 2268N pull at 0.5MPa, 3518N push at 0.7MPa, and a theoretical max of 513kgf at 1.0MPa. Because this specific SKU lacks a magnet, it cannot accept a sensor. If you need position detection on the SAU replacement, order the -S option and use CMSG/DMSG/EMSG switches.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU80X55 replacement — usually within 7-8 hours.