This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU63X450, 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 SU63X450 is a double-acting profile-type standard cylinder with a Ø63mm bore and 450mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU63X450, which matches its bore, stroke, force and mounting.
The AirTAC SU63X450 is a discontinued double-acting profile-type cylinder featuring a 63mm bore and 450mm stroke. Delivering 1559 N push force at 0.5 MPa, it uses an extruded aluminum barrel that is more compact than an ISO 15552 cylinder of the same bore. AirTAC replaced this unit with the SAU63X450 direct replacement, matching the exact 3/8" port, M16x1.5 rod thread, output force, and SC-series mounting accessories.
The SAU upgrade introduces CMSG/DMSG/EMSG sensors and a SAUF built-in-valve option the SU line lacked. Note this specific SKU lacks a magnet (-S) and cannot accept a sensor.
| Model | Airtac SU63-100 Standard Cylinder SU63X450 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU63X450 |
| Bore size | Ø63 mm |
| Stroke | 450 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 SAU63X450 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 SAU63X450 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. |
| ×450 | 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 belt using the 1559 N push force at 0.5 MPa, with the 450mm stroke clearing the lane width.
Acts as a pneumatic stop for incoming pallets on a roller conveyor, absorbing impact via the adjustable 21mm air cushions at both ends.
To replace the SU63X450, order the SAU63X450 direct equivalent, verifying your 3/8" port, M16x1.5 rod thread, and SC-series mounting (LB/FA/FB/CA/CB). Because this SKU has no -S magnet, it cannot support a sensor; if sensing is required, specify an SAU63X450S and upgrade to CMSG/DMSG/EMSG switches (the SU used legacy CS1-B/DS1-B). If you need self-contained actuation, the SAUF variant adds a built-in 4M solenoid valve. A standard cylinder does not hold load on air loss—use an external rod lock or pilot-operated check valve. With the 450mm stroke, prevent rod bending by guiding the load externally to avoid side-load stress. If you need more force, the 80mm bore offers 2513 N push at 0.5 MPa; if less is acceptable, the 50mm bore provides 982 N.
Replacement checklist
Yes, the SU63X450 is discontinued. The direct replacement is the AirTAC SAU63X450. It shares the same 63mm bore, 450mm stroke, 3/8" port, output force, and SC-series mounting, so it fits the same application directly.
It features a 3/8" air port. The thrust ratings are: 1559 N push and 1402 N pull at 0.5 MPa; 2182 N push at 0.7 MPa; 2805 N push at 0.9 MPa; and a theoretical maximum force of 318 kgf at 1.0 MPa.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU63X450 replacement — usually within 7-8 hours.