This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU100X300SCA, 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 SU100X300SCA is a double-acting profile-type standard cylinder with a Ø100mm bore and 300mm stroke, 1/2" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU100X300SCA, which matches its bore, stroke, force and mounting.
The AirTAC SU100X300SCA is a discontinued double-acting profile-type cylinder with a 100 mm bore and 300 mm stroke. It delivers 3927 N push force at 0.5 MPa, utilizing a 1/2" port and an M20x1.5 rod thread. AirTAC replaced this legacy unit with the SAU100X300SCA, a direct upgrade retaining the exact bore, stroke, output force, port size, and SC-series CA mounting interface.
When migrating to the SAU100X300SCA, note that the built-in magnet requires current CMSG/DMSG/EMSG sensors instead of the older CS1-B/DS1-B switches. The SAU family also introduces a SAUF variant with a built-in 4M solenoid valve, an option the original SU line lacked.
| Model | Airtac SU63-100 Standard Cylinder SU100X300SCA |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU100X300SCA |
| Bore size | Ø100 mm |
| Stroke | 300 mm |
| Acting type | Double acting |
| Port size | 1/2" |
| Rod thread | M20×1.5 |
| 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, 29 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SU datasheet (now discontinued). The SAU100X300SCA carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3927 N | 3682 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 kgf | |
The SAU100X300SCA 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). |
|---|---|
| 100 | 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.
Actuates heavy-duty pallet flow gates, utilizing the 1/2" port for high-volume air flow and the CA clevis mount to accommodate pivoting arc movement.
Secures large injection mold halves with up to 801 kgf theoretical max force, relying on external guides to prevent rod bending over the 300 mm travel.
To replace the SU100X300SCA, order the SAU100X300SCA ensuring your 1/2" port threads (PT/G/NPT) and CA mounting accessories match. Because this SKU includes a magnet (-S), you must upgrade your legacy CS1-B/DS1-B switches to CMSG/DMSG/EMSG sensors. If sizing alternatives, neighboring bores shift force significantly, but at 0.5 MPa this 100 mm bore yields 3927 N push and 3681 N pull. Remember that a standard cylinder drifts without live air; the cushions only decelerate, so add an external rod lock or pilot-operated check valve for load holding. Finally, at 300 mm stroke, prevent rod bending by guiding the load externally to avoid side-loading.
Replacement checklist
Yes, the SU100X300SCA is discontinued. The direct replacement is the SAU100X300SCA, which shares the same 100 mm bore, 300 mm stroke, 1/2" port, and CA mounting. You simply order the SAU equivalent.
It delivers 3927 N push and 3681 N pull at 0.5 MPa, 5497 N push at 0.7 MPa, and a theoretical max of 801 kgf at 1.0 MPa. Because this model has a magnet, the legacy CS1-B/DS1-B switches must be replaced with CMSG/DMSG/EMSG sensors on the new SAU unit.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU100X300SCA replacement — usually within 7-8 hours.