This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU63X700S, 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 SU63X700S is a double-acting profile-type standard cylinder with a Ø63mm bore and 700mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU63X700S, which matches its bore, stroke, force and mounting.
The AirTAC SU63X700S is a discontinued double-acting profile-type cylinder with a 63mm bore and 700mm stroke. Delivering 1559N push force at 0.5MPa via a 3/8" port, it is replaced directly by the SAU63X700S. This direct successor retains the exact bore, stroke, output force, port size, and SC-series mounting, ensuring a seamless retrofit. The extruded aluminum body is more compact than a same-bore ISO 15552 unit.
Because this is a 700mm stroke, external guides are recommended to prevent rod bending under side loads. Note the -S magnet: the SU used legacy CS1-B/DS1-B switches, whereas the SAU replacement upgrades to CMSG/DMSG/EMSG sensors. The SAU line also introduces the SAUF valve-integrated option the SU lacked.
| Model | Airtac SU63-100 Standard Cylinder SU63X700S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU63X700S |
| Bore size | Ø63 mm |
| Stroke | 700 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 SAU63X700S 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 SAU63X700S 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. |
| ×700 | 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 large package diverters on sorting lines, utilizing the 700mm stroke to shift heavy goods between parallel conveyor belts reliably.
Pushes accumulated cartons onto palletizing stations, using the 1559N push force at 0.5MPa to overcome friction on heavy loads.
Drives material lifts in vertical ascent applications; ensure external guides support the 700mm rod to prevent bending under side loads.
To replace this SU63X700S, order the SAU63X700S, confirming the 63mm bore, 700mm stroke, 3/8" port, M16x1.5 rod thread, and SC-series mounting (LB/FA/FB/CA/CB). If sizing alternatives, the neighboring 50mm bore yields 982N push at 0.5MPa, while the 80mm bore provides 2513N. For this 700mm stroke, use external guides to prevent rod-bending side loads. The -S suffix means a sensor family change: your legacy CS1-B/DS1-B switches must become CMSG/DMSG/EMSG on the SAU. Finally, this cylinder will not hold a load on air loss—the cushion only decelerates—so add an external rod lock or pilot-operated check valve for suspended loads. If you need self-switching, explore the SAUF variant with its built-in 4M solenoid valve.
Replacement checklist
Yes, the SU63X700S is discontinued. The direct replacement is the AirTAC SAU63X700S. It shares the identical 63mm bore, 700mm stroke, 1559N force at 0.5MPa, 3/8" port, and SC-series mounting, so it fits the same application directly.
The 63mm bore delivers 1559N push and 1402N pull at 0.5MPa, 2182N push at 0.7MPa, and a 318kgf maximum at 1.0MPa. The -S magnet on this SU worked with legacy CS1-B/DS1-B switches; the SAU replacement requires the current CMSG/DMSG/EMSG sensor family.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU63X700S replacement — usually within 7-8 hours.