This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU63X240, 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 SU63X240 is a double-acting profile-type standard cylinder with a Ø63mm bore and 240mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU63X240, which matches its bore, stroke, force and mounting.
The AirTAC SU63X240 is a discontinued double-acting profile-type cylinder featuring a 63 mm bore and 240 mm stroke. It delivers 1559 N push force at 0.5 MPa via a 3/8" port. AirTAC replaced this unit with the SAU63X240, a direct alternative retaining the exact body dimensions, output, and SC-series mounting hardware.
This non-magnetic SKU cannot accept a sensor. If sensing is required, the SAU replacement uses modern CMSG/DMSG/EMSG switches, whereas the legacy SU required CS1-B/DS1-B. The SAU family also introduces the SAUF variant with a built-in valve, an option the SU line never offered.
| Model | Airtac SU63-100 Standard Cylinder SU63X240 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU63X240 |
| Bore size | Ø63 mm |
| Stroke | 240 mm |
| Acting type | Double acting |
| Port size | 3/8" |
| Rod thread | M16×1.5 |
| 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, 21 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SU datasheet (now discontinued). The SAU63X240 carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 1559 N | 1402 N |
| 0.7 MPa | 2182 N | — |
| Max (@1.0 MPa) | 318 kgf | |
The SAU63X240 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). |
|---|---|
| 63 | Bore size in mm. |
| ×240 | 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 packaging lines, using the 1559 N thrust to push cartons firmly into secondary chutes at high cycling speeds.
Functions as a robust pneumatic stop for heavy pallets, absorbing kinetic energy through its 21 mm adjustable air cushions at both ends.
Drives medium-duty workholding clamps on machining fixtures, providing stable 0.5 MPa holding force for rigid part securing.
To replace the SU63X240, order the SAU63X240 by matching the 63 mm bore, 240 mm stroke, and 3/8" port. Verify your rod-end thread is M16x1.5 and select PT, G, or NPT port threads. Because this specific SKU lacks a magnet (-S), it cannot hold a sensor; if you need position detection, upgrade to an SAU63X240S and use CMSG/DMSG/EMSG switches instead of the old CS1-B/DS1-B. Sizing both ways: a 50 mm bore provides 982 N push at 0.5 MPa (too light), while an 80 mm bore yields 2513 N (heavier class). At 240 mm stroke, side-load is moderate, but always guide the load to prevent rod bending. A plain cylinder drifts on air loss—the cushion only decelerates—so add an external rod lock for suspended loads.
Replacement checklist
Yes, the SU63X240 is discontinued. The direct replacement is the AirTAC SAU63X240. It matches the 63 mm bore, 240 mm stroke, 3/8" port, M16x1.5 rod thread, and SC-series mounting, so it fits the same application without mechanical modifications.
At 0.5 MPa it pushes 1559 N and pulls 1402 N. At 0.7 MPa push is 2182 N, and the theoretical maximum is 318 kgf at 1.0 MPa. This non-S SKU cannot take a sensor; if you need detection, order the SAU63X240S which uses current 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 SAU63X240 replacement — usually within 7-8 hours.