This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU63X50SH, 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 SU63X50SH is a double-acting profile-type standard cylinder with a Ø63mm bore and 50mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU63X50SH, which matches its bore, stroke, force and mounting.
The AirTAC SU63X50SH is a discontinued double-acting profile cylinder with a 63mm bore and 50mm stroke, delivering 1559N push force at 0.5MPa. The direct replacement is the SAU63X50SH, matching the bore, stroke, output, 3/8" port and SC-series mounts. The -H denotes Viton FKM seals for 0-150C high-temperature environments.
This compact extruded-aluminium body is shorter than an ISO 15552 unit of the same bore. The -S magnet worked with legacy CS1-B/DS1-B switches; the SAU successor uses CMSG/DMSG/EMSG sensors, and the SAUF variant adds a built-in valve the SU lacked.
| Model | Airtac SU63-100 Standard Cylinder SU63X50SH |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU63X50SH |
| Bore size | Ø63 mm |
| Stroke | 50 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 SAU63X50SH 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 SAU63X50SH 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. |
| ×50 | 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.
Uses the Viton -H seal to eject hot moulded parts safely up to 150C, utilising the 1559N push force at 0.5MPa for reliable part separation.
Applies the 50mm stroke and 1402N pull force to secure heavy workpieces during machining, taking advantage of the compact profile body.
To replace this discontinued SU63X50SH, order the SAU63X50SH direct equivalent, verifying the 3/8" port, M16x1.5 rod thread, PT thread type, and SC-series mounting hardware. Because the -S magnet is present, note the sensor family changes from legacy CS1-B/DS1-B to CMSG/DMSG/EMSG on the SAU. For sizing both ways: a 50mm bore offers 982N push at 0.5MPa, while an 80mm bore provides 2513N. The theoretical maximum is 318kgf at 1.0MPa. A plain cylinder does not hold load without live air; the cushions only decelerate, so use an external rod lock or pilot-operated check valve for held loads. The SAUF valve-integrated option can simplify cycling.
Replacement checklist
Yes, the SU63X50SH is discontinued. The direct replacement is the SAU63X50SH, offering the same 63mm bore, 50mm stroke, force, 3/8" port and SC-series mounting. The -S magnet requires upgrading from legacy CS1-B/DS1-B switches to CMSG/DMSG/EMSG sensors.
The 3/8" port bore delivers 1559N push and 1402N pull at 0.5MPa, 2182N push at 0.7MPa, 2805N push at 0.9MPa, and a maximum theoretical force of 318kgf at 1.0MPa. The -H seal allows operation from 0 to 150C.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU63X50SH replacement — usually within 7-8 hours.