This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU100X520S, 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 SU100X520S 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 SAU100X520S, which matches its bore, stroke, force and mounting.
The AirTAC SU100X520S is a discontinued double-acting profile-type cylinder with a 100mm bore and 520mm stroke. Delivering 3927 N push force at 0.5 MPa, it features an extruded aluminum barrel and adjustable cushions, making it more compact than an ISO 15552 cylinder of the same bore. AirTAC replaced this end-of-life unit with the SAU100X520S, a direct replacement retaining the exact bore, stroke, 1/2 inch port, and SC-series mounting.
When upgrading to the SAU100X520S, the body and output force remain identical, but the -S magnet switches from legacy CS1-B/DS1-B switches to the current CMSG/DMSG/EMSG sensors. The SAU line also introduces a SAUF variant with a built-in 4M solenoid valve that the SU lacked.
| Model | Airtac SU63-100 Standard Cylinder SU100X520S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU100X520S |
| 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 SAU100X520S 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 SAU100X520S 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.
Drives substantial forming or stamping tasks utilizing 3927 N of thrust at 0.5 MPa, with the 520mm stroke providing deep material penetration.
Pushes loaded pallets along accumulation lines, where the 100mm bore delivers the necessary force to overcome initial static friction.
Manages descent for heavy fixtures up to 200 kg, requiring external guides across the 520mm extension to prevent rod bending.
To replace the SU100X520S, order the SAU100X520S direct equivalent, verifying your 1/2 inch port threads (PT, G, or NPT) and SC-series mounting accessories like LB or FA. Because the -S magnet is present, note that your legacy CS1-B/DS1-B switches must change to CMSG/DMSG/EMSG sensors on the SAU. Sizing both ways: a neighboring 80mm bore yields 2513 N push at 0.5 MPa, while this 100mm bore reaches 5497 N at 0.7 MPa. A plain cylinder drifts without live air, so use an external rod lock for held loads. With the 520mm stroke, add external guides to prevent rod bending under side loads. If you need self-switching, consider the SAUF valve-integrated option.
Replacement checklist
Yes, the SU100X520S is discontinued. The direct replacement is the SAU100X520S, which matches the 100mm bore, 520mm stroke, output force, 1/2 inch port, and SC-series mounting.
It delivers 3927 N push and 3681 N pull at 0.5 MPa, 5497 N push at 0.7 MPa, and a max of 801 kgf at 1.0 MPa. The -S magnet worked with legacy CS1-B/DS1-B switches; the SAU replacement requires CMSG/DMSG/EMSG sensors.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU100X520S replacement — usually within 7-8 hours.