This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU63X75N, 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 SU63X75N is a double-acting profile-type standard cylinder with a Ø63mm bore and 75mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU63X75N, which matches its bore, stroke, force and mounting.
The AirTAC SU63X75N is a discontinued double-acting profile-type cylinder with a 63mm bore and 75mm stroke. It delivers 1559N push and 1402N pull at 0.5MPa via a 3/8" port. The direct replacement is the SAU63X75N, matching the bore, stroke, force, port, and SC-series mounting.
This NBR-sealed unit operates from -20 to +70C. Lacking a magnet, this SKU cannot take a sensor. The SAU upgrade adds CMSG/DMSG/EMSG switch compatibility and an optional SAUF built-in valve.
| Model | Airtac SU63-100 Standard Cylinder SU63X75N |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU63X75N |
| Bore size | Ø63 mm |
| Stroke | 75 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 SAU63X75N 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 SAU63X75N 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. |
| ×75 | 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.
Drives diverting arms on packaging lines, utilizing the 75mm stroke to push cartons cleanly onto adjacent conveyors.
Acts as a robust pneumatic stop for pallets, using its 1559N push force at 0.5MPa to halt heavy loads safely.
Secures workpieces during machining operations, providing reliable clamping force in automated fixture setups.
To replace this discontinued SU63X75N, order the SAU63X75N. Verify your 3/8" port, M16x1.5 rod thread, PT/G/NPT thread standard, and SC-series mounting (LB/FA/FB/CA/CB). Because this SKU lacks a magnet (-S), it cannot accept a sensor; if sensing is needed, specify an SAU63X75NS and use current CMSG/DMSG/EMSG switches instead of legacy CS1-B/DS1-B models. For sizing both ways, a 50mm bore gives 982N push @0.5MPa, while an 80mm bore yields 2513N. Note that a plain cylinder drifts on air loss—the cushion only decelerates—so use an external rod lock for held loads. The SAUF variant integrates a 4M valve if self-switching is desired.
Replacement checklist
Yes, the SU63X75N is discontinued. The direct replacement is the AirTAC SAU63X75N. It shares the same 63mm bore, 75mm stroke, 3/8" port, output force, and SC-series mounting, so it fits the same application.
At 0.5MPa it provides 1559N push and 1402N pull; 2182N push at 0.7MPa; 2805N at 0.9MPa; and a theoretical max of 318kgf at 1.0MPa. This specific NBR-sealed SKU has no magnet and cannot accept a sensor. If sensing is required, order the SAU63X75NS replacement, which uses CMSG/DMSG/EMSG switches.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU63X75N replacement — usually within 7-8 hours.