This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU100X520, 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 SU100X520 is a double-acting profile-type standard cylinder with a Ø100mm bore and 520mm stroke, 1/2" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU100X520, which matches its bore, stroke, force and mounting.
The AirTAC SU100X520 is a discontinued double-acting profile-type cylinder, delivering a robust 3927 N push force at 0.5 MPa through its 100 mm bore and 520 mm stroke. The direct replacement is the SAU100X520, matching the 1/2" port, M20x1.5 rod thread, output force, and SC-series mounting. This extruded aluminium body is shorter and more compact than an ISO 15552 cylinder of the same size.
Because this SKU lacks a magnet, it cannot accept a sensor; furthermore, the SAU upgrade transitions to CMSG/DMSG/EMSG switches from the legacy CS1-B/DS1-B family. The SAU line also introduces the SAUF variant with a built-in 4M solenoid valve, an option the SU never offered.
| Model | Airtac SU63-100 Standard Cylinder SU100X520 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU100X520 |
| Bore size | Ø100 mm |
| Stroke | 520 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 SAU100X520 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 SAU100X520 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. |
| ×520 | 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 3927 N push at 0.5 MPa needed to eject dense metal stampings from a hydraulic press bed over a 520 mm clearance.
Handles the 200 kg vertical lift margin to push loaded pallets off a roller conveyor transition safely without mechanical binding.
Utilizes the full 520 mm travel to part large injection molds, relying on adjustable 29 mm cushions to decelerate the heavy platens.
To replace the SU100X520, order the SAU100X520, confirming the 100 mm bore, 520 mm stroke, 1/2" port, and PT/G/NPT thread choice. Reuse your existing SC-series mounting accessories. Since this specific SKU has no magnet (-S), it cannot support position sensing; if sensing is required, specify an SAU100X520S and upgrade to CMSG/DMSG/EMSG switches. For sizing alternatives, dropping to an 80 mm bore reduces the 0.5 MPa push force to 2513 N, while the 100 mm bore hits 5497 N at 0.7 MPa. Note that a plain cylinder drifts on air loss—the cushions only decelerate, so use an external rod lock for held loads. Finally, at 520 mm, prevent rod bending by guiding the load externally.
Replacement checklist
Yes, the SU100X520 is discontinued. The direct replacement is the SAU100X520. It matches the 100 mm bore, 520 mm stroke, 1/2" port, and SC-series mounting, so it fits the same application without modification.
It delivers 3927 N push and 3681 N pull at 0.5 MPa, 5497 N push at 0.7 MPa, and a maximum theoretical force of 801 kgf at 1.0 MPa. Because this specific SKU lacks a magnet, it cannot accept a sensor; the SAU replacement uses CMSG/DMSG/EMSG switches.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU100X520 replacement — usually within 7-8 hours.