This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ50X200-100S, 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 SUJ50X200-100S is a double-acting profile-type standard cylinder with a Ø50mm bore and 200mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAUJ50X200-100S, which matches its bore, stroke, force and mounting.
The AirTAC SUJ50X200-100S is a double-acting double-rod adjustable-stroke profile cylinder. An external stop screw lets you trim the extend stroke by up to 100 mm on-site, yielding a usable 100-200 mm extend range from the 200 mm nominal maximum. The stop screw sets the end position and is not a load lock.
This SUJ50X200-100S is discontinued; the direct replacement is the SAUJ50X200-100S, retaining the same profile body, bore, stroke, force, and FA/LB mounting. The -S suffix denotes a piston magnet for legacy CS1-B/DS1-B switches; the SAUJ successor upgrades to current CMSG/DMSG/EMSG sensors. A plain cylinder drifts on air loss, so use an external rod lock for held loads.
| Model | Airtac SUJ Adjustable Cylinder SUJ50X200-100S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ50X200-100S |
| Bore size | Ø50 mm |
| Stroke | 200 mm |
| Acting type | Double acting |
| Port size | 1/4" |
| 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 1200 mm |
Specifications follow the official AirTAC SU datasheet (now discontinued). The SAUJ50X200-100S carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 825 N |
| 0.7 MPa | 1374 N | — |
| Max (@1.0 MPa) | 200 kgf | |
The SAUJ50X200-100S 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). |
|---|---|
| 50 | 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.
Allows operators to dial in exact push distances between 100 mm and 200 mm on packaging lines without swapping cylinders for different product sizes.
Tunes the extend stop on-site to accommodate changing package widths on a conveyor, ensuring precise routing without reprogramming the machine.
Used in storage retrieval to push containers to varying depths, trimming the extend stroke by up to 100 mm to match shelf dimensions dynamically.
To replace the discontinued SUJ50X200-100S, order the direct replacement SAUJ50X200-100S, which matches the 50 mm bore, 200 mm nominal stroke, 100 mm adjust window, 1/4" port, and FA/LB mounting. Choose the 100 mm adjust window if your mechanism requires field-tuning the extend stroke down to a 100 mm minimum; for fixed positions, a standard SAU cylinder suffices. If migrating the -S magnet, note the sensor change from legacy CS1-B/DS1-B to CMSG/DMSG/EMSG. For strokes of 300 mm or longer, verify side-load limits to prevent rod binding.
Replacement checklist
Yes, the AirTAC SUJ50X200-100S is discontinued. The direct replacement is the SAUJ50X200-100S. It matches the 50 mm bore, 200 mm stroke, 100 mm adjust window, 1/4" port, and FA/LB mounting. The SAUJ also uses current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B switches.
The external stop screw window is 100 mm, allowing you to shorten the 200 mm nominal extend stroke down to 100 mm on-site. 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 SAUJ50X200-100S replacement — usually within 7-8 hours.