This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU80X275, 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 SU63-100 Standard Cylinder SU80X275 is a double-acting profile-type standard cylinder with a Ø80mm bore and 275mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU80X275, which matches its bore, stroke, force and mounting.
The AirTAC SU80X275 is a discontinued double-acting profile-type cylinder with an 80mm bore and 275mm stroke. Delivering 2513N push and 2268N pull at 0.5MPa, its extruded aluminum barrel is more compact than a same-bore ISO 15552 unit. AirTAC replaced it with the SAU80X275, a direct retrofit retaining the exact 3/8" port, M20x1.5 rod, and SC-series mounting.
This non-magnetic SKU cannot accept a sensor; the -S variant used legacy CS1-B/DS1-B switches, while the SAU upgrade uses CMSG/DMSG/EMSG sensors and adds a SAUF built-in-valve option.
| Model | Airtac SU63-100 Standard Cylinder SU80X275 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU80X275 |
| Bore size | Ø80 mm |
| Stroke | 275 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 SAU80X275 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 SAU80X275 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. |
| ×275 | 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.
Pushes heavy pallets onto secondary packaging lines using 2513N of thrust at 0.5MPa without requiring full ISO 15552 footprint clearance.
Ejects formed metal parts from press beds, where the compact extruded profile fits tight tooling spaces and the 3/8" port handles rapid exhaust.
To replace the SU80X275, order the SAU80X275 with the same 80mm bore, 275mm stroke, 3/8" port, and SC-series mounting (LB/FA/FB/CA/CB). Because this SKU lacks a magnet, it cannot take a switch; if sensing is needed, specify the -S version and migrate from CS1-B/DS1-B to CMSG/DMSG/EMSG sensors. Sizing both ways: dropping to a 63mm bore yields 1559N [email protected], while stepping up to 100mm provides 3927N. For load holding, note that the air cushion only decelerates; use an external rod lock or pilot-operated check valve to prevent drift. At a 275mm stroke, guide the load to avoid rod bending and side-load wear.
Replacement checklist
Yes, the AirTAC SU80X275 is discontinued. The direct replacement is the SAU80X275. It matches the 80mm bore, 275mm stroke, 513kgf max force, 3/8" port, and SC-series mounting accessories, so it drops straight into your existing machine.
At 0.5MPa it provides 2513N push and 2268N pull; 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. The SAU replacement's -S variant uses CMSG/DMSG/EMSG switches instead of the legacy CS1-B/DS1-B.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU80X275 replacement — usually within 7-8 hours.