This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ50X150-40S, 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 SUJ50X150-40S
The AirTAC SUJ Adjustable Cylinder SUJ50X150-40S 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 SAUJ50X150-40S, which matches its bore, stroke, force and mounting.
- BoreØ50 mm
- Stroke150 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAUJ50X150-40S
- 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 SUJ50X150-40S
The AirTAC SUJ50X150-40S is a double-acting double-rod adjustable-stroke profile cylinder, now discontinued. An external stop screw lets you trim the extend stroke by up to 40 mm on-site, yielding a usable 110-150 mm extend window from the 150 mm nominal maximum. The stop sets the end position but is not a load lock.
The direct replacement is the SAUJ50X150-40S, matching the bore, stroke, force, port, and FA/LB mounting. Upgrading to the SAUJ moves you to current CMSG/DMSG/EMSG sensors from the legacy CS1-B/DS1-B switches on this -S magnet model. Remember, a plain cylinder drifts on air loss; use an external rod lock for held loads.
Airtac SUJ Adjustable Cylinder SUJ50X150-40S Technical Specifications
| Model | Airtac SUJ Adjustable Cylinder SUJ50X150-40S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ50X150-40S |
| 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 SAUJ50X150-40S 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 SAUJ50X150-40S 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 SUJ50X150-40S
| 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 SUJ50X150-40S Is Used
Variable Depth Boring
Machine tools needing field stroke tuning to hit exact bore depths without swapping the entire cylinder.
Adjustable Carton Flap Folding
Packaging lines running varied box sizes use the 40 mm extend trim to adapt flap folding on the fly.
Variable Stroke Diverting
Conveyor diverters requiring precise product placement can dial in the extend end position during commissioning.
Replacing the Airtac SUJ Adjustable Cylinder SUJ50X150-40S with the SAUJ50X150-40S
To replace the discontinued SUJ50X150-40S, order the direct replacement SAUJ50X150-40S. The bore, stroke, 40 mm adjust window, 1/4" port, and FA/LB mounting remain identical. Choose the 40 mm adjust window when you need on-site extend tuning between 110-150 mm; the SAUJ beats a fixed SAU plus external stop by integrating this cleanly. For the -S magnet option, switch from legacy CS1-B/DS1-B to current CMSG/DMSG/EMSG sensors. Mounting is compatible with the AirTAC SC series only. For strokes of 300 mm or longer, verify side-load limits to prevent rod binding.
Replacement checklist
- ✓ Same bore / stroke → SAUJ50X150-40S
- ✓ 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 SUJ50X150-40S FAQ
Yes, the SUJ50X150-40S is discontinued. The direct replacement is the SAUJ50X150-40S, offering the same 50 mm bore, 150 mm stroke, 40 mm adjust window, 1/4" port, and FA/LB mounting. You will need to upgrade the -S magnet sensors from legacy CS1-B/DS1-B to current CMSG/DMSG/EMSG switches.
This 50 mm bore double-acting double-rod cylinder pushes 982 N and pulls 825 N at 0.5 MPa, pushing 1374 N at 0.7 MPa and 1767 N at 0.9 MPa, with a theoretical max of 200 kgf at 1.0 MPa. The external stop screw provides a 40 mm adjustment window, allowing you to trim the extend stroke on-site from the 150 mm maximum down to 110 mm. The stop sets end position only and is not a load lock.
Related AirTAC SAU Cylinders
Request a Quote for the SAUJ50X150-40S
Send us the quantity and destination. We confirm price, stock and lead time on the SAUJ50X150-40S replacement — usually within 7-8 hours.