This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU63X350, 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 SU63X350 is a double-acting profile-type standard cylinder with a Ø63mm bore and 350mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU63X350, which matches its bore, stroke, force and mounting.
The AirTAC SU63X350 is a discontinued double-acting profile-type cylinder with a 63mm bore and 350mm stroke. It delivers 1559N push and 1402N pull at 0.5MPa, operating at 30-800mm/s through a 3/8 port. AirTAC replaced this end-of-line unit with the SAU63X350, a direct alternative retaining the exact bore, stroke, output force, port size and SC-series mounting footprint.
Because this SKU lacks a magnet, it cannot accept a sensor. The SAU upgrade adds a sensor groove for current CMSG/DMSG/EMSG switches (the SU line used legacy CS1-B/DS1-B) and introduces the SAUF valve-integrated variant. Note that a plain cylinder drifts on air loss; use an external rod lock for holding.
| Model | Airtac SU63-100 Standard Cylinder SU63X350 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU63X350 |
| Bore size | Ø63 mm |
| Stroke | 350 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 SAU63X350 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 SAU63X350 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. |
| ×350 | 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 diverter arms on sorting lines using the 1559N push force at 0.5MPa, with the 350mm stroke providing full lane-clearing reach.
Pushes pallets into wrapping stations; the 79kg vertical lift capacity handles intermediate product staging reliably.
Ejects machined parts from fixtures, utilizing the 21mm adjustable end cushions to soften stops at high cycling speeds.
To replace this discontinued SU63X350, order the SAU63X350 direct equivalent, matching the 63mm bore, 350mm stroke, 3/8 port, M16x1.5 rod thread and SC-series mounts. Since this specific SKU has no magnet (-S), it cannot support sensing; if detection is needed, specify an SAU63X350S and migrate to CMSG/DMSG/EMSG switches instead of the old CS1-B/DS1-B. For loads needing 2805N at 0.9MPa, the 63mm bore is ideal, while stepping down to a 50mm bore yields 982N at 0.5MPa. At 350mm stroke, prevent rod bending by guiding the load externally. The air cushion only decelerates; it does not hold position, so add a pilot-operated check valve for suspension. The SAUF variant offers a built-in valve if desired.
Replacement checklist
Yes, the SU63X350 is discontinued. The direct replacement is the AirTAC SAU63X350. It matches the 63mm bore, 350mm stroke, 3/8 port, output force and SC-series mounting accessories, so it fits the same application directly.
The 63mm bore provides 1559N push and 1402N pull at 0.5MPa, 2182N push at 0.7MPa, and a theoretical max of 318kgf at 1.0MPa. This non-magnetic SKU cannot take a sensor; the SAU replacement uses CMSG/DMSG/EMSG switches if sensing is added.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU63X350 replacement — usually within 7-8 hours.