This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU63X1050, 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 SU63X1050 is a double-acting profile-type standard cylinder with a Ø63mm bore and 1050mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU63X1050, which matches its bore, stroke, force and mounting.
The AirTAC SU63X1050 is a discontinued double-acting profile-type cylinder with a 63mm bore and 1050mm stroke. It delivers 1559N push and 1402N pull at 0.5MPa (2182N at 0.7MPa), utilizing a 3/8" port and M16x1.5 rod thread. AirTAC replaced this end-of-line unit with the SAU63X1050, a direct upgrade retaining the exact bore, stroke, force, port, and SC-series mounting footprint.
The SAU replacement modernizes sensing by adopting CMSG/DMSG/EMSG switches, replacing the legacy CS1-B/DS1-B sensors, and introduces the SAUF built-in-valve variant the SU line lacked. Because this 1050mm stroke exceeds the 1500mm standard maximum threshold classification, it requires careful external guiding to prevent rod bending.
| Model | Airtac SU63-100 Standard Cylinder SU63X1050 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU63X1050 |
| Bore size | Ø63 mm |
| Stroke | 1050 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 SAU63X1050 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 SAU63X1050 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. |
| ×1050 | 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 pallets between conveyor lines over 1050mm, utilizing the 1559N push force at 0.5MPa with external guides to prevent rod bending.
Actuates large storage diverters where the 63mm bore provides sufficient force, moving loads safely under the 935N working limit.
Ejects molded parts from heavy machinery, relying on the 21mm adjustable air cushions at both ends to decelerate the 1050mm travel safely.
To replace the discontinued SU63X1050, order the SAU63X1050, verifying your 3/8" port, M16x1.5 rod thread, and SC-series mounting (LB/FA/FB/CA/CB) remain compatible. Since this 1050mm unit lacks a magnet (-S), it cannot accept magnetic sensors; if position detection is needed, the SAU upgrade requires the newer CMSG/DMSG/EMSG switch family. Sizing both ways: a neighboring 80mm bore increases thrust to 2513N at 0.5MPa, while dropping to 50mm lowers it to 982N. For this 1050mm stroke, external guides are mandatory to prevent rod bending under side loads. Note that a plain cylinder drifts on air loss—the cushions only decelerate—so use an external rod lock or pilot-operated check valve for load holding. If faster actuation is needed, consider the SAUF variant with its integrated 4M solenoid valve.
Replacement checklist
Yes, the SU63X1050 is discontinued. The direct replacement is the AirTAC SAU63X1050. It matches the original 63mm bore, 1050mm stroke, 3/8" port, output force, and SC-series mounting, so it fits the same application without modifications.
This double-acting cylinder provides 1559N push and 1402N pull at 0.5MPa, 2182N push at 0.7MPa, and a theoretical max of 318kgf at 1.0MPa. Because this specific SKU lacks a magnet, it cannot accept sensors; if detection is needed, the SAU replacement uses CMSG/DMSG/EMSG switches instead of the old CS1-B/DS1-B.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU63X1050 replacement — usually within 7-8 hours.