This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ63X100-100S, 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 SUJ Adjustable Cylinder SUJ63X100-100S is a double-acting profile-type standard cylinder with a Ø63mm bore and 100mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAUJ63X100-100S, which matches its bore, stroke, force and mounting.
The AirTAC SUJ63X100-100S is a double-acting double-rod profile cylinder with an external stop screw that lets you trim the extend stroke by up to 100 mm on-site. The nominal 100 mm stroke is the maximum, yielding a usable extend window of 0-100 mm. The 3/8" port and M16x1.5 rod end are fixed by the bore. This SUJ model is discontinued; the direct replacement is the SAUJ63X100-100S.
The stop screw sets the end position but is not a load lock; use an external rod lock for held loads. Beyond the sensor upgrade from legacy CS1-B/DS1-B to current CMSG/DMSG/EMSG switches, the SAUJ retains the compact profile barrel, FA/LB mounting, and 21 mm adjustable cushions. It beats a fixed SAU plus external stop by integrating the stroke tuning cleanly into the body.
| Model | Airtac SUJ Adjustable Cylinder SUJ63X100-100S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ63X100-100S |
| Bore size | Ø63 mm |
| Stroke | 100 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 SAUJ63X100-100S 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 SAUJ63X100-100S 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. |
| ×100 | 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.
Machine tools needing field stroke tuning to set precise boring depths on-site without swapping the entire actuator.
Packaging lines handling varied box sizes use the 0-100 mm extend trim to adapt flap folding strokes on the fly.
Conveyor diverters requiring precise end-position tuning to route different product widths accurately.
To replace the discontinued SUJ63X100-100S, order the direct replacement SAUJ63X100-100S, keeping the 63 mm bore, 100 mm nominal stroke, 100 mm adjust window, 3/8" port, and FA/LB mounting. Choose the 100 mm adjust window when you need maximum field flexibility to trim the extend stroke. Because this is an -S model, you must upgrade position sensing from legacy CS1-B/DS1-B to current CMSG/DMSG/EMSG switches. For strokes of 300 mm or longer, verify side-load limits to prevent rod binding.
Replacement checklist
Yes, the SUJ63X100-100S is discontinued. The direct replacement is the SAUJ63X100-100S, which matches the 63 mm bore, 100 mm stroke, 100 mm adjust window, 3/8" port, and FA/LB mounting. The SAUJ uses current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B switches.
The external stop screw allows you to trim the extend stroke by up to 100 mm on-site (usable 0-100 mm). The stop sets end position but is not a load lock.
Send us the quantity and destination. We confirm price, stock and lead time on the SAUJ63X100-100S replacement — usually within 7-8 hours.