This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU63X340S, 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 SU63X340S is a double-acting profile-type standard cylinder with a Ø63mm bore and 340mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU63X340S, which matches its bore, stroke, force and mounting.
The AirTAC SU63X340S is a discontinued double-acting profile-type cylinder with a 63mm bore and 340mm stroke. It delivered 1559N push and 1402N pull at 0.5MPa via a 3/8" port. AirTAC replaced this unit with the SAU63X340S, a direct sharing the exact body, force, and SC-series mounting.
This legacy -S magnet model relied on CS1-B/DS1-B switches, whereas the SAU successor uses CMSG/DMSG/EMSG sensors. The SAU line also introduces a SAUF built-in-valve variant the SU lacked.
| Model | Airtac SU63-100 Standard Cylinder SU63X340S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU63X340S |
| Bore size | Ø63 mm |
| Stroke | 340 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 SAU63X340S 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 SAU63X340S 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. |
| ×340 | 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 off a main belt using its 1559N thrust at 0.5MPa, with the 340mm stroke clearing guard rails.
Ejects formed metal parts from a press bed, utilizing the adjustable 21mm cushions to decelerate at stroke end.
To replace this discontinued SU63X340S, order the SAU63X340S direct equivalent, matching the 63mm bore, 340mm stroke, M16x1.5 rod thread, 3/8" port, and SC mounting. Because this has an -S magnet, you must upgrade to CMSG/DMSG/EMSG sensors as the old CS1-B/DS1-B switches are obsolete. If sizing alternatives, a 50mm bore yields 982N push while an 80mm bore yields 2513N at 0.5MPa. For this 340mm stroke, use external guides to prevent rod bending from side loads. A plain cylinder drifts without air; use an external rod lock for load holding. Consider the SAUF variant if you need a built-in valve.
Replacement checklist
Yes, the SU63X340S is discontinued. The direct replacement is the SAU63X340S, which shares the same 63mm bore, 340mm stroke, 3/8" port, output force, and SC-series mounting.
It delivers 1559N push and 1402N pull at 0.5MPa, 2182N at 0.7MPa, and a 318kgf max at 1.0MPa. The -S magnet used 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 SAU63X340S replacement — usually within 7-8 hours.