This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ63X450-10S, 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 SUJ63X450-10S is a double-acting profile-type standard cylinder with a Ø63mm bore and 450mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAUJ63X450-10S, which matches its bore, stroke, force and mounting.
The AirTAC SUJ63X450-10S is a double-acting double-rod profile cylinder with an external stop screw that lets you trim the extend stroke by up to 10 mm on-site, yielding a usable 440-450 mm stroke. The 63 mm bore uses a 3/8" port and M16x1.5 rod thread. This SUJ model is discontinued; the direct replacement is the SAUJ63X450-10S, sharing the same force, bore, and FA/LB mounting.
Upgrading to the SAUJ retains the compact profile body but moves to current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B switches used here. Remember the stop screw sets end position only; it is not a load lock, so add an external rod lock for held loads.
| Model | Airtac SUJ Adjustable Cylinder SUJ63X450-10S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ63X450-10S |
| Bore size | Ø63 mm |
| Stroke | 450 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 SAUJ63X450-10S 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 SAUJ63X450-10S 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. |
| ×450 | 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.
Final insertion depth varies by material batch; the 10 mm stop screw window lets operators fine-tune the 450 mm extend endpoint on the machine without reprogramming the PLC.
Pneumatic diverters handling mixed package sizes use the external stop to shorten the extend stroke by up to 10 mm, preventing gate overtravel on compact items.
Assembly pallets requiring precise physical end limits benefit from the mechanical stop screw to set a rigid 440-450 mm extend position independent of valve pressure.
To replace this discontinued SUJ63X450-10S, specify the SAUJ63X450-10S as a direct, keeping the 3/8" port, M16x1.5 rod, and FA/LB mounts. If migrating sensors, swap the legacy CS1-B/DS1-B switches for current CMSG/DMSG/EMSG equivalents. Choose the 10 mm adjust window when you need minor on-site extend tuning; for fixed points, a standard SAU cylinder suffices. Because the 450 mm stroke is long, ensure external guides to prevent rod bending and side-load damage.
Replacement checklist
Yes, the SUJ63X450-10S is discontinued. The direct replacement is the SAUJ63X450-10S, which matches the 63 mm bore, 450 mm stroke, 3/8" port, and FA/LB mounting. You must upgrade the position sensors from legacy CS1-B/DS1-B to the current CMSG/DMSG/EMSG series.
The external stop screw window is 10 mm, allowing you to shorten the 450 mm extend stroke down to 440 mm on-site. The stop sets end position only; it does not lock the load.
Send us the quantity and destination. We confirm price, stock and lead time on the SAUJ63X450-10S replacement — usually within 7-8 hours.