This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU80X900, 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 SU80X900 is a double-acting profile-type standard cylinder with a Ø80mm bore and 900mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU80X900, which matches its bore, stroke, force and mounting.
The AirTAC SU80X900 is a discontinued double-acting profile-type cylinder featuring an 80mm bore and 900mm stroke. The direct replacement is the SAU80X900, matching the 3/8 port, M20x1.5 rod thread, and 28mm cushions.
Because this SKU lacks a magnet, it cannot accept a sensor. If sensing is needed, the SAU upgrade uses modern CMSG/DMSG/EMSG switches, whereas legacy SU models required CS1-B/DS1-B. The SAU family also introduces a SAUF variant with a built-in valve the SU never had. For this 900mm stroke, use external guides to prevent rod bending.
| Model | Airtac SU63-100 Standard Cylinder SU80X900 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU80X900 |
| Bore size | Ø80 mm |
| Stroke | 900 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 SAU80X900 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 SAU80X900 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. |
| ×900 | 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.
Ejects heavy molded or stamped parts from a press bed, using the 28mm adjustable air cushions to decelerate the 80mm bore at stroke ends.
To replace the SU80X900, order the SAU80X900. Verify your 3/8 port, M20x1.5 thread, and SC-series mounts (LB/FA/FB/CA/CB) which carry over directly. This non-magnetic SKU cannot take a switch; if you need sensing, order an SAU-S and use CMSG/DMSG/EMSG sensors instead of the old CS1-B/DS1-B. If you need self-switching, explore the SAUF valve-integrated option. For the 900mm stroke, add external guides to prevent rod bending. If dropping to a 63mm bore, push drops to 1559N at 0.5MPa; stepping up to 100mm yields 3927N. Note: a plain cylinder drifts on air loss; use an external rod lock or pilot-operated check valve for held loads.
Replacement checklist
Yes, the SU80X900 is discontinued. The direct replacement is the AirTAC SAU80X900. It shares the same 80mm bore, 900mm stroke, 2513N output force, 3/8 port, and SC-series mounting accessories, fitting the exact same application.
At 0.5MPa it pushes 2513N and pulls 2268N; at 0.7MPa it pushes 3518N, with a theoretical max of 513kgf at 1.0MPa. This specific SKU has no magnet and cannot take a sensor. If you need position sensing on the SAU replacement, order the -S version which uses CMSG/DMSG/EMSG switches.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU80X900 replacement — usually within 7-8 hours.