This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU63X340SH, 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 SU63X340SH 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 SAU63X340SH, which matches its bore, stroke, force and mounting.
The AirTAC SU63X340SH is a discontinued double-acting profile cylinder with a 63 mm bore and 340 mm stroke. It delivers 1559 N push force at 0.5 MPa and features a high-temperature Viton H seal (0-150 C) alongside a 3/8" port. AirTAC replaced this end-of-line unit with the SAU63X340SH, a direct replacement retaining the exact bore, stroke, output force, port size, and SC-series mounting.
The SAU upgrade introduces current CMSG/DMSG/EMSG sensors, replacing this model's legacy CS1-B/DS1-B switches, and offers a new SAUF valve-integrated variant. The extruded aluminum profile is shorter than an ISO 15552 cylinder of the same bore, and a plain cylinder does not hold load without live air—the cushion only decelerates.
| Model | Airtac SU63-100 Standard Cylinder SU63X340SH |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU63X340SH |
| 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 SAU63X340SH 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 SAU63X340SH 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.
Actuating diverters on warm conveyors where the Viton H seal survives ambient heat, using the 1559 N push force to shift heavy packages.
Opening industrial oven doors at elevated temperatures, relying on the 0-150 C seal capacity and 340 mm stroke to clear the chamber safely.
To replace this discontinued SU63X340SH, order the SAU63X340SH direct equivalent, verifying the 63 mm bore, 340 mm stroke, 3/8" port, M16x1.5 rod thread, and SC-series mounting (LB/FA/FB/CA/CB). Because this SKU includes the -S magnet, you must switch from the legacy CS1-B/DS1-B switches to the modern CMSG/DMSG/EMSG family on the SAU. The -H Viton seal provides 0-150 C heat resistance. For sizing alternatives, a 50 mm bore yields 982 N push at 0.5 MPa, while an 80 mm bore provides 2513 N. Note that a standard cylinder drifts on air loss—the cushion only decelerates—so use an external rod lock or pilot-operated check valve for held loads. Finally, at 340 mm, this long stroke requires external guides to prevent rod bending under side loads.
Replacement checklist
Yes, the SU63X340SH is discontinued. The direct replacement is the AirTAC SAU63X340SH. It matches the 63 mm bore, 340 mm stroke, 3/8" port, and SC-series mounting. The SAU body is identical, but if you use the -S magnet, you must upgrade from the old CS1-B/DS1-B switches to the current CMSG/DMSG/EMSG sensors.
At 0.5 MPa, the 63 mm bore provides 1559 N push and 1402 N pull. At 0.7 MPa it pushes 2182 N, and 2805 N at 0.9 MPa, with a theoretical max of 318 kgf at 1.0 MPa. The 340 mm stroke is within the 1500 mm max standard stroke for this bore. Speed is 30-800 mm/s, and it has a 21 mm adjustable cushion at both ends.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU63X340SH replacement — usually within 7-8 hours.