This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ63X200-75S, 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 SUJ63X200-75S 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 SAUJ63X200-75S, which matches its bore, stroke, force and mounting.
The AirTAC SUJ63X200-75S is a double-acting double-rod profile cylinder with an external stop screw that lets you trim the extend stroke by up to 75 mm on-site, yielding a usable 125-200 mm extension from the 200 mm nominal maximum. It features a 3/8" port, a Ø20 mm piston rod with an M16x1.5 thread, and 21 mm adjustable air cushions at each end. This SUJ model is discontinued; the direct replacement is the SAUJ63X200-75S, sharing the same bore, stroke, force, port, and FA/LB mounting.
The stop screw sets the end position but is not a load lock; a plain cylinder drifts on air loss, so use an external rod lock for held loads. The SAUJ upgrade retains the compact profile barrel but adopts current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B switches used here, and SAU adds an SAUF built-in-valve variant the SU line lacked.
| Model | Airtac SUJ Adjustable Cylinder SUJ63X200-75S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ63X200-75S |
| 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 SAUJ63X200-75S 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 SAUJ63X200-75S 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.
Adjusting the extend stroke on-site by up to 75 mm allows a single 63 mm bore cylinder to press parts to varying depths without changing the entire actuator setup.
Trimming the 200 mm stroke down to 125 mm provides precise pusher positioning for sorting goods of varying heights into designated lanes.
To replace the discontinued SUJ63X200-75S, order the direct replacement SAUJ63X200-75S, which matches the 63 mm bore, 200 mm nominal stroke, 75 mm adjust window, 3/8" port, and FA/LB mounting. Select the -75 mm adjust window if your application requires field tuning the extend stroke down to 125 mm. For the -S magnet option, swap the legacy CS1-B/DS1-B sensors for CMSG/DMSG/EMSG switches on the SAUJ. Because the 200 mm stroke is under 300 mm, side-load leverage is minimal, but always confirm rod-end alignment.
Replacement checklist
Yes, the SUJ63X200-75S is discontinued. The direct replacement is the SAUJ63X200-75S, which shares the same 63 mm bore, 200 mm stroke, 75 mm adjust window, 3/8" port, and FA/LB mounting. You only need to upgrade the sensors from legacy CS1-B/DS1-B to current CMSG/DMSG/EMSG switches.
The external stop screw allows you to trim the extend stroke by up to 75 mm on-site, giving a usable extension range of 125-200 mm. The stop sets end position and is not a load lock.
Send us the quantity and destination. We confirm price, stock and lead time on the SAUJ63X200-75S replacement — usually within 7-8 hours.