This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ63X225-10S, 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 SUJ63X225-10S is a double-acting profile-type standard cylinder with a Ø63mm bore and 225mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAUJ63X225-10S, which matches its bore, stroke, force and mounting.
The AirTAC SUJ63X225-10S 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 215-225 mm extension out of the 225 mm nominal maximum. The 3/8" port and M16x1.5 rod end are fixed by the bore. This discontinued unit used a CS1-B/DS1-B piston magnet for position sensing.
The direct replacement is the SAUJ63X225-10S, matching the exact bore, stroke, force, port, and FA/LB mounting. Upgrading to the SAUJ moves you to current CMSG/DMSG/EMSG sensors and opens access to the SAUF built-in-valve variant. Note the stop screw sets end position only; it is not a load lock, so use an external rod lock for held loads.
| Model | Airtac SUJ Adjustable Cylinder SUJ63X225-10S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ63X225-10S |
| Bore size | Ø63 mm |
| Stroke | 225 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 SAUJ63X225-10S 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 SAUJ63X225-10S 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. |
| ×225 | 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.
Trimming the final 10 mm of extend stroke on-site to set precise contact pressure against a test probe without machining hard stops.
Adjusting the extend endpoint by a few millimetres to synchronise a pusher flight with varying product widths on a packaging line.
Micro-adjusting the extended stop finger position to accommodate slight pallet length variances in a handling cell.
To replace this discontinued SUJ63X225-10S, specify the SAUJ63X225-10S direct: it preserves the 63 mm bore, 225 mm nominal stroke, 318 kgf max force, 3/8" port, and FA/LB mounting. The -10 mm adjust window is ideal for fine-tuning the extend endpoint without shimming; if you need a larger trim range, select a different adjust suffix. Retain your FA or LB mounts, but note the sensor change: the -S magnet on this legacy model used CS1-B/DS1-B switches, whereas the SAUJ uses CMSG/DMSG/EMSG. For this 225 mm stroke, verify side-load alignment to prevent rod binding.
Replacement checklist
Yes, the AirTAC SUJ63X225-10S is discontinued. The direct replacement is the SAUJ63X225-10S, which matches the 63 mm bore, 225 mm stroke, 3/8" port, and FA/LB mounting. The SAUJ uses current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B switches.
This double-acting double-rod cylinder has a 10 mm adjust window (usable extend stroke 215-225 mm). The external stop screw sets the end position but is not a load lock.
Send us the quantity and destination. We confirm price, stock and lead time on the SAUJ63X225-10S replacement — usually within 7-8 hours.