This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU63X1400S, 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 SU63X1400S is a double-acting profile-type standard cylinder with a Ø63mm bore and 1400mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU63X1400S, which matches its bore, stroke, force and mounting.
The AirTAC SU63X1400S is a discontinued double-acting profile-type cylinder with a 63 mm bore and 1400 mm stroke. It delivers 1559 N push force at 0.5 MPa via a 3/8" port. AirTAC replaced this unit with the SAU63X1400S, a direct sharing the exact bore, stroke, output force, and SC-series mounting.
The legacy CS1-B/DS1-B switches on this -S model are superseded by CMSG/DMSG/EMSG sensors on the SAU. Furthermore, the SAU line introduces the SAUF variant with a built-in 4M solenoid valve, an option the SU series never offered.
| Model | Airtac SU63-100 Standard Cylinder SU63X1400S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU63X1400S |
| Bore size | Ø63 mm |
| Stroke | 1400 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 SAU63X1400S 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 SAU63X1400S 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. |
| ×1400 | 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.
Pushes heavy cartons across wide conveyor belts over the 1400 mm travel, relying on the 1559 N thrust to overcome friction without stalling.
Acts as a secondary ejector in palletizing cells, using the extended stroke to clear large pallet footprints before the wrapping station.
Lowers stacked sheet metal blanks into press beds, requiring external guide rails to prevent rod bending over the long 1400 mm extension.
To replace this SU63X1400S, order the SAU63X1400S by confirming the 63 mm bore, 1400 mm stroke, 3/8" port, M16x1.5 rod thread, and SC-series mounting. Because this unit has the -S magnet, you must upgrade to CMSG/DMSG/EMSG sensors as the older CS1-B/DS1-B switches are obsolete. If sizing alternatives, the neighboring 50 mm bore yields 982 N push at 0.5 MPa, while the 80 mm bore provides 2513 N. Note that a plain cylinder drifts without live air; for load holding, install an external rod lock or pilot-operated check valve, as the adjustable cushions only decelerate. Finally, at 1400 mm, prevent rod bending by guiding the load externally to avoid side-loading.
Replacement checklist
Yes, the SU63X1400S is discontinued. The direct replacement is the SAU63X1400S, which matches the 63 mm bore, 1400 mm stroke, 3/8" port, and SC-series mounting. The only change is that the -S magnet now requires CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B switches.
At 0.5 MPa it provides 1559 N push and 1402 N pull. At 0.7 MPa the push is 2182 N, and the theoretical maximum is 318 kgf at 1.0 MPa. Note that the air cushions only decelerate the load; they do not hold it without live air.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU63X1400S replacement — usually within 7-8 hours.