This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ63X200-40S, 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 SUJ63X200-40S is a double-acting profile-type standard cylinder with a Ø63mm bore and 200mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAUJ63X200-40S, which matches its bore, stroke, force and mounting.
The AirTAC SUJ63X200-40S is a double-acting double-rod profile cylinder with an on-site stroke-trim window. An external stop screw lets you shorten the extend stroke by up to 40 mm, yielding a usable 160-200 mm range from the 200 mm nominal maximum. It features a 20 mm rod, M16x1.5 rod thread, and a 3/8" port.
This SUJ unit is discontinued; the direct replacement is the SAUJ63X200-40S, matching the bore, stroke, force, and SC-series FA/LB mounting. The stop screw sets the end position but is not a load lock—use an external rod lock for held loads. The -S magnet supports legacy CS1-B/DS1-B sensors, whereas the SAUJ upgrade uses current CMSG/DMSG/EMSG switches.
| Model | Airtac SUJ Adjustable Cylinder SUJ63X200-40S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ63X200-40S |
| Bore size | Ø63 mm |
| Stroke | 200 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 SAUJ63X200-40S 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 SAUJ63X200-40S 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. |
| ×200 | 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.
Needs field stroke tuning to adjust the extend stroke by up to 40 mm on-site for boring different material depths without swapping cylinders.
Requires trimming the extend stroke from 200 mm down to 160 mm to deflect varying package sizes on a production line accurately.
Demands precise end-position adjustment via the external stop screw to push cartons onto shelves of varying depths.
To replace the discontinued SUJ63X200-40S, order the direct replacement SAUJ63X200-40S, which preserves the 63 mm bore, 200 mm nominal stroke, 40 mm adjust window, 3/8" port, and FA/LB mounting. Choose the 40 mm adjust window if your end-position needs field tuning between 160 mm and 200 mm. For the -S magnet version, note the sensor change from legacy CS1-B/DS1-B to current CMSG/DMSG/EMSG on the SAUJ. Since the 200 mm stroke is under 300 mm, side-load concerns are minimal, but always guide the rod externally.
Replacement checklist
Yes, the SUJ63X200-40S is discontinued. The direct replacement is the SAUJ63X200-40S, sharing the same 63 mm bore, 200 mm stroke, 40 mm adjust window, 3/8" port, and FA/LB mounting. The SAUJ also offers the SAUF built-in-valve variant the SU line lacked.
The 40 mm external stop screw window allows shortening the extend stroke from 200 mm down to 160 mm on-site. 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 SAUJ63X200-40S replacement — usually within 7-8 hours.