This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU100X300N, 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 SU100X300N 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 SAU100X300N, which matches its bore, stroke, force and mounting.
The AirTAC SU100X300N is a discontinued double-acting profile-type cylinder with a 100mm bore, 300mm stroke, and a 1/2" port. Delivering 3927 N push force at 0.5 MPa, it uses an extruded aluminum barrel to stay more compact than same-bore ISO cylinders. The direct replacement is the SAU100X300N, matching the bore, stroke, output force, port, and SC-series mounting.
This NBR-sealed (-N) unit lacks a magnet (-S), so it cannot accept magnetic sensors. The SAU upgrade introduces CMSG/DMSG/EMSG switches (for -S versions) and a SAUF built-in 4M valve option the SU line never had.
| Model | Airtac SU63-100 Standard Cylinder SU100X300N |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU100X300N |
| 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 SAU100X300N 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 SAU100X300N 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.
Provides the robust 3927 N push force needed to eject dense metal stampings from a hydraulic press bed, utilizing the 300mm stroke to clear the tooling area completely.
Actuates heavy-duty diverter arms on high-throughput conveyor lines, moving loaded pallets laterally with enough thrust to overcome sliding friction without stalling.
Drives large mechanical clamping arms that secure heavy steel beams during automated welding cycles, ensuring rigid workholding under high vibration.
To replace this SU100X300N, order the SAU100X300N direct equivalent, confirming the 100mm bore, 300mm stroke, 1/2" port, M20x1.5 rod thread, and SC-series mounting. Because this SKU lacks a magnet (-S), it cannot support sensors; if your application requires position detection, specify an SAU100X300NS and migrate to CMSG/DMSG/EMSG switches. For loads needing secure holding on air loss, add an external rod lock or pilot-operated check valve, as the adjustable 29mm air cushions only decelerate the piston. At 300mm stroke, prevent rod bending by using an external guide to absorb side loads. If downsizing, a 80mm bore yields 2513 N push at 0.5 MPa; if upsizing, the 100mm bore hits 5497 N at 0.7 MPa.
Replacement checklist
Yes, the AirTAC SU100X300N is discontinued. The direct replacement is the SAU100X300N. It shares the identical 100mm bore, 300mm stroke, 1/2" port, output force, and SC-series mounting, so it fits the same application. The SAU line also adds a SAUF built-in-valve option the SU lacked.
The force ratings are 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 specific SKU has no magnet, it cannot accept magnetic sensors; legacy -S versions used CS1-B/DS1-B switches, while the SAU replacement uses CMSG/DMSG/EMSG sensors.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU100X300N replacement — usually within 7-8 hours.