This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU80X90STC, 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 SU80X90STC is a double-acting profile-type standard cylinder with a Ø80mm bore and 90mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU80X90STC, which matches its bore, stroke, force and mounting.
The AirTAC SU80X90STC is a discontinued double-acting profile cylinder featuring an 80 mm bore, a 90 mm stroke, and a TC mounting interface. It delivers 2513 N of push force at 0.5 MPa. AirTAC replaced this unit with the SAU80X90STC, a direct replacement retaining the exact body, bore, stroke, output force, 3/8" port, and SC-series mounting accessories.
The SAU upgrade introduces current CMSG/DMSG/EMSG sensors, superseding the legacy CS1-B/DS1-B switches used on this -S SKU. It also adds the SAUF built-in-valve option absent from the original line. Note that the cushion only decelerates; use a rod lock for load holding.
| Model | Airtac SU63-100 Standard Cylinder SU80X90STC |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU80X90STC |
| Bore size | Ø80 mm |
| Stroke | 90 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 SAU80X90STC 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 SAU80X90STC 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. |
| ×90 | 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.
Uses the 2513 N push force at 0.5 MPa to deflect heavy pallets along a transfer line via the TC mount.
Ejects formed parts from machinery, relying on the 28 mm adjustable air cushions to decelerate the rod.
To replace this SU80X90STC, order the SAU80X90STC with the identical 80 mm bore, 90 mm stroke, 3/8" port, M20x1.5 rod thread, and TC mounting. Because this SKU includes a magnet (-S), you must migrate from the old CS1-B/DS1-B switches to the modern CMSG/DMSG/EMSG sensor family. If your application needs higher force, the neighboring 100 mm bore offers 3927 N at 0.5 MPa; if less is required, the 63 mm bore provides 1559 N. A plain cylinder drifts without live air, so install an external rod lock or pilot-operated check valve for secure load holding. For automated cycling, consider the SAUF variant with its integrated 4M solenoid valve.
Replacement checklist
Yes, the SU80X90STC is discontinued. The direct replacement is the SAU80X90STC, which shares the identical 80 mm bore, 90 mm stroke, 3/8" port, and TC mounting. You must only update your sensors from CS1-B/DS1-B to CMSG/DMSG/EMSG.
It features an 80 mm bore with a 3/8" port. The thrust is 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. The cushion only decelerates the load and does not hold it without air.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU80X90STC replacement — usually within 7-8 hours.