This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU63X300SH, 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 SU63X300SH is a double-acting profile-type standard cylinder with a Ø63mm bore and 300mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU63X300SH, which matches its bore, stroke, force and mounting.
The AirTAC SU63X300SH is a discontinued double-acting profile-type cylinder with a 63 mm bore, 300 mm stroke, and a Viton H high-temperature seal (0-150 C). It delivers 1559 N push force at 0.5 MPa through a 3/8" port. The direct replacement is the SAU63X300SH, matching the bore, stroke, output, port, and SC-series mounting.
The SAU upgrade switches the legacy CS1-B/DS1-B sensors to current CMSG/DMSG/EMSG switches, and introduces the SAUF built-in-valve variant the SU lacked. The 300 mm stroke requires external guides to prevent rod bending.
| Model | Airtac SU63-100 Standard Cylinder SU63X300SH |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU63X300SH |
| Bore size | Ø63 mm |
| Stroke | 300 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 SAU63X300SH 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 SAU63X300SH 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. |
| ×300 | 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.
Uses the 1559 N push at 0.5 MPa and Viton H seal to eject molded components from 150 C environments without seal degradation.
Leverages the 300 mm stroke to push heavy pallets across a conveyor belt, requiring external guides to absorb side-load impacts.
To replace this SU63X300SH, order the SAU63X300SH, confirming the 3/8" port, M16x1.5 rod thread, and SC-series mounting. Because this SKU has the -S magnet, note that your legacy CS1-B/DS1-B switches must change to CMSG/DMSG/EMSG sensors on the SAU. The -H Viton seal handles 0-150 C. If sizing alternatives, the 80 mm bore yields 2513 N push at 0.5 MPa, while the 50 mm bore yields 982 N. A plain cylinder drifts on air loss; use an external rod lock or pilot-operated check valve for held loads. At 300 mm stroke, use external guides to prevent side-load rod bending. The SAUF valve-integrated option can simplify cycling if needed.
Replacement checklist
Yes, the AirTAC SU63X300SH is discontinued. The direct replacement is the SAU63X300SH. It matches the 63 mm bore, 300 mm stroke, 3/8" port, force, and SC-series mounting. You simply order the SAU equivalent.
It provides 1559 N push and 1402 N pull at 0.5 MPa, 2182 N push at 0.7 MPa, and a 318 kgf max at 1.0 MPa. Because this is an -S model, the legacy CS1-B/DS1-B switches are replaced by CMSG/DMSG/EMSG sensors on the SAU.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU63X300SH replacement — usually within 7-8 hours.