This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU63X920, 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 SU63X920 is a double-acting profile-type standard cylinder with a Ø63mm bore and 920mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU63X920, which matches its bore, stroke, force and mounting.
The AirTAC SU63X920 is a discontinued double-acting profile-type cylinder with a 63mm bore and 920mm stroke. It delivers a push force of 1559 N and pull of 1402 N at 0.5 MPa. The direct replacement is the SAU63X920, matching the 3/8" port, M16x1.5 rod thread and SC-series mounts.
The SAU upgrade retains the compact extruded aluminium body but introduces CMSG/DMSG/EMSG sensors (replacing the legacy CS1-B/DS1-B) and a new SAUF built-in-valve option. Note this non-magnetic SKU cannot accept a sensor.
| Model | Airtac SU63-100 Standard Cylinder SU63X920 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU63X920 |
| Bore size | Ø63 mm |
| Stroke | 920 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 SAU63X920 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 SAU63X920 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. |
| ×920 | 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 heavy pallets sideways on a 900mm transfer line using the 1559 N push force at 0.5 MPa, requiring external guides to manage the 920mm stroke.
Ejects moulded components from a press using the 2805 N thrust at 0.9 MPa, relying on the 21mm adjustable cushions to decelerate at stroke end.
To replace this SU63X920, order the SAU63X920, confirming the 3/8" port, PT thread, and SC-series mounting hardware. Because the 920mm stroke is long, use an external guide to prevent rod bending and side-load wear. For higher loads, a neighbouring 80mm bore offers 2513 N push at 0.5 MPa; for lighter duties, a 50mm bore gives 982 N. This non-magnetic version cannot host a sensor; if sensing is needed, specify an SAU-S model and use CMSG/DMSG/EMSG switches. The air cushion only decelerates the piston; it does not hold the load on air loss, so fit an external rod lock or pilot-operated check valve for suspended loads. The SAUF variant integrates a 4M valve if you need self-switching.
Replacement checklist
Yes, the SU63X920 is discontinued. The direct replacement is the SAU63X920. It shares the same 63mm bore, 920mm stroke, 3/8" port, output force and SC-series mounting, so it fits the same application. The SAU body uses current CMSG/DMSG/EMSG sensors instead of the older CS1-B/DS1-B.
At 0.5 MPa it provides 1559 N push and 1402 N pull; at 0.7 MPa it pushes 2182 N; at 0.9 MPa it pushes 2805 N; and the theoretical max is 318 kgf at 1.0 MPa. Because this specific SKU lacks a magnet, it cannot accept a magnetic sensor. Operating speed is 30-800 mm/s.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU63X920 replacement — usually within 7-8 hours.