This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ50X200-50SH, 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 SUJ50X200-50SH 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 SAUJ50X200-50SH, which matches its bore, stroke, force and mounting.
The AirTAC SUJ50X200-50SH is a double-acting double-rod profile cylinder with a 50 mm adjustable-stroke window, allowing you to trim the extend stroke by up to 50 mm on-site (yielding a usable 150-200 mm extend range from the 200 mm nominal maximum). The external stop screw sets the end position precisely but is not a load lock. The -H suffix specifies Viton/FKM seals, extending the operating temperature from -20...+70 °C up to 0-150 °C. It features a 1/4" port, an M16x1.5 rod thread, and 21 mm adjustable cushions.
This SUJ series is discontinued; the direct replacement is the SAUJ50X200-50SH, retaining the same profile body, 50 mm bore, 200 mm stroke, 50 mm adjust window, and force. The -S magnet enabled legacy CS1-B/DS1-B sensors, whereas the SAUJ successor transitions to current CMSG/DMSG/EMSG switches. Note that a standard cylinder drifts on air loss; use an external rod lock for held loads.
| Model | Airtac SUJ Adjustable Cylinder SUJ50X200-50SH |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ50X200-50SH |
| 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 SAUJ50X200-50SH 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 SAUJ50X200-50SH 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.
Trimming the extend stroke by up to 50 mm on-site allows operators to fine-tune boring depth without changing the entire cylinder setup.
Field-tuning the extend end position lets a diverter accommodate varying package sizes on the fly without reprogramming the motion controller.
The Viton -H seals handle 0-150 C environments, while the 50 mm stroke adjustment dials in the exact push-off distance for varied pallet loads.
To replace the discontinued SUJ50X200-50SH, specify the SAUJ50X200-50SH as a direct, matching the 50 mm bore, 200 mm nominal stroke, 50 mm adjust window, 1/4" port, and FA/LB mounting. The 50 mm adjust window is ideal if your extend stroke needs field tuning between 150 mm and 200 mm, often beating a fixed SAU plus external stop. Because this model has the -S magnet, you must upgrade from legacy CS1-B/DS1-B sensors to current CMSG/DMSG/EMSG switches. For strokes of 300 mm or longer, carefully verify side-load limits to prevent guide wear.
Replacement checklist
Yes, the SUJ50X200-50SH is discontinued. The direct replacement is the SAUJ50X200-50SH, matching the 50 mm bore, 200 mm stroke, 50 mm adjust window, 1/4" port, and FA/LB mounting. You must upgrade the -S magnet sensors from legacy CS1-B/DS1-B to current CMSG/DMSG/EMSG.
The 50 mm external stop screw window allows you to shorten the 200 mm nominal extend stroke down to 150 mm on-site. The stop sets end position only; it is not a load lock.
Send us the quantity and destination. We confirm price, stock and lead time on the SAUJ50X200-50SH replacement — usually within 7-8 hours.