This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU63X145S, 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 SU63X145S is a double-acting profile-type standard cylinder with a Ø63mm bore and 145mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU63X145S, which matches its bore, stroke, force and mounting.
The AirTAC SU63X145S is a discontinued double-acting profile-type cylinder with a 63mm bore and 145mm stroke. It delivers 1559N push and 1402N pull at 0.5MPa via a 3/8 port. AirTAC replaced this unit with the SAU63X145S, a direct replacement retaining the exact bore, stroke, force, port size and SC-series mounting.
The SAU upgrade introduces CMSG/DMSG/EMSG sensors to replace this model's legacy CS1-B/DS1-B switches, and adds a SAUF built-in-valve option the SU line lacked. The extruded aluminum body is shorter than an ISO 15552 cylinder of the same bore.
| Model | Airtac SU63-100 Standard Cylinder SU63X145S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU63X145S |
| Bore size | Ø63 mm |
| Stroke | 145 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 SAU63X145S 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 SAU63X145S 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. |
| ×145 | 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.
Applies the 1559N push force at 0.5MPa for seating bearings or light stamping tasks within a 145mm travel.
Drives a 63mm bore diverter arm to redirect moderate-weight cartons on a production line.
To replace this discontinued SU63X145S, order the SAU63X145S, confirming the 3/8 port, M16x1.5 rod thread and SC-series mounting match your existing jig. Because this SKU has the -S magnet, you must upgrade your legacy CS1-B/DS1-B switches to the current CMSG/DMSG/EMSG family. If your application needs self-switching, explore the SAUF variant with its integrated 4M solenoid valve. For sizing both ways: a 50mm bore yields 982N push at 0.5MPa, while an 80mm bore yields 2513N. Note that a plain cylinder drifts on air loss—the 21mm cushions only decelerate, so add an external rod lock or pilot-operated check valve for held loads.
Replacement checklist
Yes, the AirTAC SU63X145S is discontinued. The direct replacement is the SAU63X145S. It shares the identical 63mm bore, 145mm stroke, 1559N output force at 0.5MPa, 3/8 port, and SC-series mounting, so it fits the same application directly.
The 63mm bore delivers 1559N push and 1402N pull at 0.5MPa, 2182N push at 0.7MPa, and a theoretical max of 318kgf at 1.0MPa. Because this is the -S magnet version, it originally used CS1-B/DS1-B switches; the SAU replacement requires upgrading to CMSG/DMSG/EMSG sensors.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU63X145S replacement — usually within 7-8 hours.