This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ50X200-50S, 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.
Airtac SUJ Adjustable Cylinder SUJ50X200-50S
The AirTAC Airtac SUJ Adjustable Cylinder SUJ50X200-50S 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 SAUJ50X200-50S, which matches its bore, stroke, force and mounting.
- BoreØ50 mm
- Stroke200 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAUJ50X200-50S
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SUJ Adjustable Cylinder SUJ50X200-50S
The AirTAC SUJ50X200-50S 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 for a usable 150-200 mm range. It features a 1/4" port, an M16x1.5 rod thread, and 21 mm adjustable cushions. This unit is discontinued; the direct replacement is the SAUJ50X200-50S, retaining the same bore, force, and FA/LB mounting.
The SAUJ upgrade uses current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B switches on this -S magnet model. The external stop screw sets the end position but is not a load lock; use an external rod lock for held loads, as air loss causes drift.
Airtac SUJ Adjustable Cylinder SUJ50X200-50S Technical Specifications
| Model | Airtac SUJ Adjustable Cylinder SUJ50X200-50S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ50X200-50S |
| 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 SAUJ50X200-50S carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø50mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 825 N |
| 0.7 MPa | 1374 N | — |
| Max (@1.0 MPa) | 200 kgf | |
The SAUJ50X200-50S produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SUJ Adjustable Cylinder SUJ50X200-50S
| 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.
Where the Airtac SUJ Adjustable Cylinder SUJ50X200-50S Is Used
Variable Depth Boring
Adjusts the extend stroke on-site to machine pockets at varying depths without retooling the entire fixture setup.
Variable Length Sorting
Trims the extend position dynamically to push different package sizes onto specific conveyor lanes accurately.
Adjustable Carton Sealing
Tunes the extend end position to seal cartons of varying heights on a single line without changing cylinders.
Replacing the Airtac SUJ Adjustable Cylinder SUJ50X200-50S with the SAUJ50X200-50S
To replace the discontinued SUJ50X200-50S, order the direct replacement SAUJ50X200-50S, which matches the 50 mm bore, 200 mm nominal stroke, 50 mm adjust window, 1/4" port, and FA/LB mounting. Choose the 50 mm adjust window if you need to trim the extend stroke on-site by up to 50 mm; the stop screw sets end position but is not a lock. For mounting, use SC-series compatible FA or LB brackets. Because this model has the -S magnet, upgrade to CMSG/DMSG/EMSG sensors for the SAUJ. For strokes of 300 mm or longer, verify side-load limits to prevent rod binding.
Replacement checklist
- ✓ Same bore / stroke → SAUJ50X200-50S
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S): sensor family CS1-B → CMSG
- ✓ Mounting reused (FA/FB/CA/CB/LB)
- ✓ Need a built-in valve? → SAUF
Airtac SUJ Adjustable Cylinder SUJ50X200-50S FAQ
Yes, the SUJ50X200-50S is discontinued. The direct replacement is the SAUJ50X200-50S, which matches the 50 mm bore, 200 mm stroke, 50 mm adjust window, 1/4" port, and FA/LB mounting. The SAUJ uses current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B switches.
The external stop screw window is 50 mm, allowing you to shorten the 200 mm extend stroke down to 150 mm on-site. The stop sets end position and is not a load lock.
Related AirTAC SAU Cylinders
Request a Quote for the SAUJ50X200-50S
Send us the quantity and destination. We confirm price, stock and lead time on the SAUJ50X200-50S replacement — usually within 7-8 hours.