This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ50X150-75S, 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.
Airtac SUJ Adjustable Cylinder SUJ50X150-75S
The AirTAC SUJ Adjustable Cylinder SUJ50X150-75S is a double-acting profile-type standard cylinder with a Ø50mm bore and 150mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAUJ50X150-75S, which matches its bore, stroke, force and mounting.
- BoreØ50 mm
- Stroke150 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAUJ50X150-75S
- 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 SUJ50X150-75S
The AirTAC SUJ50X150-75S is a double-acting double-rod adjustable-stroke profile cylinder. An external stop screw lets you trim the extend stroke by up to 75 mm on-site, yielding a usable 75-150 mm extend window from the 150 mm nominal maximum. It features a 1/4" port, an M16x1.5 rod thread, and 21 mm adjustable cushions. This discontinued model is fully replaced by the direct replacement SAUJ50X150-75S.
The SAUJ50X150-75S retains the exact bore, stroke, force, port, and FA/LB mounting, but upgrades to current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B switches used here. The compact profile barrel is shorter than an ISO 15552 cylinder of the same bore. The stop screw sets the end position but is not a load lock; use an external rod lock for held loads.
Airtac SUJ Adjustable Cylinder SUJ50X150-75S Technical Specifications
| Model | Airtac SUJ Adjustable Cylinder SUJ50X150-75S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ50X150-75S |
| Bore size | Ø50 mm |
| Stroke | 150 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 SAUJ50X150-75S 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 SAUJ50X150-75S 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 SUJ50X150-75S
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 50 | Bore size in mm. |
| ×150 | 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 SUJ50X150-75S Is Used
Variable Pitch Indexing
Allows on-site extend stroke tuning up to 75 mm to alter part pitch without swapping cylinders between product runs.
Adjustable Reject Diverter
Dial in the exact extend length needed to push varying carton sizes off a belt without repositioning the bracket.
Variable Depth Forming
Sets precise push depth for packaging materials that require different forming depths on the same profile body.
Replacing the Airtac SUJ Adjustable Cylinder SUJ50X150-75S with the SAUJ50X150-75S
To replace the discontinued SUJ50X150-75S, order the exact direct replacement SAUJ50X150-75S, which preserves the 50 mm bore, 150 mm nominal stroke, 75 mm adjust window, 1/4" port, and FA/LB mounting. Choose the 75 mm adjust window when you need to trim the extend stroke on-site by up to 75 mm; this is often preferred over a fixed SAU plus an external stop because it saves space and simplifies mounting. Because this unit has the -S magnet, you must migrate from legacy CS1-B/DS1-B switches to current CMSG/DMSG/EMSG sensors. For strokes of 300 mm or longer, verify your side-load limits to prevent guide wear. The stop screw sets end position only; it does not hold loads on air loss, so add an external rod lock for suspended loads.
Replacement checklist
- ✓ Same bore / stroke → SAUJ50X150-75S
- ✓ 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 SUJ50X150-75S FAQ
Yes, the AirTAC SUJ50X150-75S is discontinued. The direct replacement is the SAUJ50X150-75S, which matches the 50 mm bore, 150 mm stroke, 75 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 provides a 75 mm adjust window, allowing you to trim the extend stroke from the 150 mm maximum down to 75 mm on-site. The stop sets end position only and is not a load lock.
Related AirTAC SAU Cylinders
Request a Quote for the SAUJ50X150-75S
Send us the quantity and destination. We confirm price, stock and lead time on the SAUJ50X150-75S replacement — usually within 7-8 hours.