This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU63X730, 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 SU63X730 is a double-acting profile-type standard cylinder with a Ø63mm bore and 730mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU63X730, which matches its bore, stroke, force and mounting.
The AirTAC SU63X730 is a discontinued double-acting profile-type cylinder with a 63mm bore and 730mm stroke. It delivers 1559N push and 1402N pull at 0.5MPa, making way for the direct replacement: the SAU63X730. This successor preserves the 3/8 inch port, M16x1.5 rod thread, 21mm cushions, and SC-series mounting geometry. The extruded aluminum profile body is more compact than an ISO 15552 unit of the same bore.
Because this SKU lacks a magnet (-S), it cannot accept a sensor. Upgrading to the SAU not only provides a direct fit but also introduces the SAUF built-in 4M solenoid valve variant the SU line never offered, alongside modern CMSG/DMSG/EMSG sensor compatibility.
| Model | Airtac SU63-100 Standard Cylinder SU63X730 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU63X730 |
| Bore size | Ø63 mm |
| Stroke | 730 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 SAU63X730 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 SAU63X730 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. |
| ×730 | 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.
Ideal for pushing heavy pallets off a main conveyor line, utilizing the full 730mm travel and 1559N push force at 0.5MPa to ensure complete transfer.
Drives long-travel pressing or seating operations where 1402N of pull force is required to retract tooling over an extended 730mm working envelope.
To replace the SU63X730, order the SAU63X730. Verify your 3/8 inch port thread (PT, G, or NPT) and SC-series mounting hardware (LB, FA, FB, CA, CB, TC) as they remain identical. This non-magnetic SKU cannot accept a switch; if you ever need sensing, the SAU requires CMSG/DMSG/EMSG sensors rather than the legacy CS1-B/DS1-B. For a load-holding requirement, note that standard air cushions only decelerate the piston and will drift without live air, so install an external rod lock or pilot-operated check valve. With a 730mm stroke, prevent rod bending by guiding the load externally to avoid side-load forces. If downsizing, a 50mm bore gives 982N push at 0.5MPa; if upsizing, an 80mm bore provides 2513N.
Replacement checklist
Yes, the SU63X730 is discontinued. The direct replacement is the AirTAC SAU63X730. It matches the 63mm bore, 730mm stroke, 3/8 inch port, output force, and SC-series mounting accessories, so it fits the same application without mechanical modifications.
At 0.5MPa it provides 1559N push and 1402N pull, increasing to 2182N push at 0.7MPa and 2805N at 0.9MPa, with a theoretical max of 318kgf at 1.0MPa. This specific SKU has no magnet (-S) and cannot accept a sensor; if sensing is needed, the SAU replacement uses CMSG/DMSG/EMSG switches instead of the old CS1-B/DS1-B.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU63X730 replacement — usually within 7-8 hours.