This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU63X75, 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 SU63X75 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 SAU63X75, which matches its bore, stroke, force and mounting.
The AirTAC SU63X75 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, operating at 30-800mm/s with a 3/8" port. AirTAC replaced it with the SAU63X75, a direct upgrade retaining the exact bore, stroke, output force, port size and SC-series mounting.
Because this non-magnetic SKU lacks a sensor groove piston, it cannot accept a switch. The SAU successor adds a built-in valve option (SAUF) absent in the SU line. Note that standard air cushions only decelerate; they do not hold loads on air loss.
| Model | Airtac SU63-100 Standard Cylinder SU63X75 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU63X75 |
| 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 SAU63X75 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 SAU63X75 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.
Uses the 1559N push force at 0.5MPa to reliably deflect heavy cartons on a 75mm stroke without overshooting.
Halts loaded pallets on a roller line; the 63mm profile body withstands repeated side impacts when guided.
Pushes bearings or pins on an assembly line, benefiting from the 21mm adjustable end cushions to prevent impact damage.
To replace this SU63X75, order the SAU63X75 direct equivalent, matching the 63mm bore, 75mm stroke, 3/8" port, M16x1.5 rod thread and SC-series mounts. If stepping up or down, neighbouring bores are 50mm (982N [email protected]) and 80mm (2513N [email protected]). This non-magnetic version cannot take sensors; if you need position detection, specify an -S SAU model and migrate from legacy CS1-B/DS1-B to current CMSG/DMSG/EMSG switches. For held loads, add an external rod lock or pilot-operated check valve, as cushions only decelerate. The SAUF variant integrates a 4M solenoid valve if self-switching is needed.
Replacement checklist
Yes, the SU63X75 is discontinued. The direct replacement is the AirTAC SAU63X75. It shares the identical 63mm bore, 75mm stroke, 1559N push force at 0.5MPa, 3/8" port and SC-series mounting accessories, so it drops straight into the same application.
The SU63X75 provides 1559N push and 1402N pull at 0.5MPa, 2182N push at 0.7MPa, 2805N push at 0.9MPa, and a 318kgf theoretical max at 1.0MPa. It uses a 3/8" port. The adjustable air cushions only decelerate the piston near stroke end; they do not hold the load on air loss. For load holding, use an external rod lock or pilot-operated check valve.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU63X75 replacement — usually within 7-8 hours.