This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU63X55, 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 SU63X55 is a double-acting profile-type standard cylinder with a Ø63mm bore and 55mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU63X55, which matches its bore, stroke, force and mounting.
The AirTAC SU63X55 is a discontinued double-acting profile cylinder with a 63 mm bore and 55 mm stroke. Delivering 1559 N push force at 0.5 MPa, it is replaced directly by the SAU63X55. This direct upgrade keeps the exact 3/8" port, M16x1.5 rod thread, output force and SC-series mounting, so it fits your existing setup perfectly.
Because this SKU lacks a magnet, it cannot accept sensors; the SAU family also adds a new SAUF valve-integrated option. The extruded aluminium body is shorter than an ISO 15552 cylinder of the same bore.
| Model | Airtac SU63-100 Standard Cylinder SU63X55 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU63X55 |
| Bore size | Ø63 mm |
| Stroke | 55 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 SAU63X55 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 SAU63X55 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. |
| ×55 | 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 medium-weight cartons off a main conveyor line using 1559 N of thrust at 0.5 MPa without requiring full system pressure.
Acts as a robust pneumatic stop for incoming pallets, absorbing kinetic energy via the 21 mm adjustable air cushions at both ends.
To replace this discontinued SU63X55, order the SAU63X55. Confirm your 3/8" port, M16x1.5 rod thread and SC-series mounting (LB/FA/FB/CA/CB) carry over directly. This non-magnetic SKU cannot take a switch; if you need sensing on the new cylinder, the SAU uses current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B. Sizing both ways: a 50 mm bore gives 982 N push @0.5 MPa, while an 80 mm bore yields 2513 N. Note that a plain cylinder drifts on air loss—the cushion only decelerates; use an external rod lock for holding. The SAUF built-in-valve variant is available if you need self-switching.
Replacement checklist
Yes, the AirTAC SU63X55 is discontinued. The direct replacement is the SAU63X55. It shares the same 63 mm bore, 55 mm stroke, 1559 N force, 3/8" port and SC-series mounting, so it drops straight into your existing application.
The 63 mm bore delivers 1559 N push and 1402 N pull at 0.5 MPa, 2182 N push at 0.7 MPa, and a theoretical max of 318 kgf at 1.0 MPa. This specific SKU has no magnet and cannot take a sensor; if you order a magnetic SAU replacement, it uses CMSG/DMSG/EMSG switches.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU63X55 replacement — usually within 7-8 hours.