This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU63X320, 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 SU63X320 is a double-acting profile-type standard cylinder with a Ø63mm bore and 320mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU63X320, which matches its bore, stroke, force and mounting.
The AirTAC SU63X320 is a discontinued double-acting profile-type cylinder with a 63mm bore and 320mm stroke. It delivers 1559N push force at 0.5MPa via a 3/8" port. The direct replacement is the SAU63X320, matching the bore, stroke, output, port and SC-series mounting.
The SAU upgrade switches legacy CS1-B/DS1-B switches to CMSG/DMSG/EMSG sensors, and introduces the SAUF valve-integrated variant. This SKU lacks a magnet and cannot take a sensor.
| Model | Airtac SU63-100 Standard Cylinder SU63X320 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU63X320 |
| Bore size | Ø63 mm |
| Stroke | 320 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 SAU63X320 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 SAU63X320 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. |
| ×320 | 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 79kg pallets onto secondary packaging lines using a safe vertical lift margin, relying on the 3/8" port for rapid actuation.
Ejects molded parts from machinery, using adjustable end cushions to decelerate the payload before the end of travel.
To replace this SU63X320, order the SAU63X320. Confirm the 3/8" port, M16x1.5 rod thread, PT/G/NPT thread standard, and SC-series mounts (LB/FA/FB/CA/CB). Because this 320mm stroke exceeds 300mm, use an external guide to prevent rod bending and side-load wear. If sizing alternatives, a 50mm bore yields 982N push at 0.5MPa, while an 80mm bore yields 2513N. This non-magnetic SKU cannot accept a sensor; if sensing is needed, specify an SAU-S model and use CMSG/DMSG/EMSG switches. Note that cushions only decelerate; for load holding on air loss, install an external rod lock or pilot-operated check valve. The SAUF variant adds a built-in 4M valve if self-switching is desired.
Replacement checklist
Yes, the AirTAC SU63X320 is discontinued. The direct replacement is the SAU63X320, which shares the identical 63mm bore, 320mm stroke, force, 3/8" port, and SC-series mounting accessories.
It delivers 1559N push and 1402N pull at 0.5MPa, 2182N push at 0.7MPa, and a 318kgf theoretical max at 1.0MPa. This specific SKU has no magnet and cannot accept a sensor; the SAU-S replacement uses CMSG/DMSG/EMSG switches.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU63X320 replacement — usually within 7-8 hours.