This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ40X150-40S, 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 SUJ40X150-40S
The AirTAC Airtac SUJ Adjustable Cylinder SUJ40X150-40S is a double-acting profile-type standard cylinder with a Ø40mm bore and 150mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAUJ40X150-40S, which matches its bore, stroke, force and mounting.
- BoreØ40 mm
- Stroke150 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM12×1.25
- StatusDiscontinued → SAUJ40X150-40S
- 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 SUJ40X150-40S
The AirTAC SUJ40X150-40S is a double-acting double-rod profile cylinder with an external stop screw that lets you trim the extend stroke by up to 40 mm on-site, giving a usable extend range of 110-150 mm from the 150 mm nominal maximum. This unit features a 1/4" port, a 16 mm rod, and adjustable 21 mm cushions. The stop screw strictly sets the end position; it is not a load lock, so external rod locks are required to hold loads without live air.
This SUJ40X150-40S model is discontinued and the direct replacement is the SAUJ40X150-40S, retaining the same bore, stroke, force, and SC-series FA/LB mounting compatibility. Because this is an -S variant, it has a piston magnet for legacy CS1-B/DS1-B switches; the SAUJ replacement upgrades to current CMSG/DMSG/EMSG sensors.
Airtac SUJ Adjustable Cylinder SUJ40X150-40S Technical Specifications
| Model | Airtac SUJ Adjustable Cylinder SUJ40X150-40S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ40X150-40S |
| Bore size | Ø40 mm |
| Stroke | 150 mm |
| Acting type | Double acting |
| Port size | 1/4" |
| Rod thread | M12×1.25 |
| 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 SAUJ40X150-40S carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 kgf | |
The SAUJ40X150-40S 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 SUJ40X150-40S
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 40 | 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 SUJ40X150-40S Is Used
Variable Length Cutting
Trimming the extend stroke by up to 40 mm on-site allows a single cylinder to cut different material lengths without physically swapping actuators.
Adjustable Diverter Arms
Field-tuning the extend end position lets operators alter the diverter reach on a conveyor line to accommodate varying package widths.
Calibrated Forming Stops
An external stop screw provides a hard mechanical end position for metal forming, easily dialed back from the 150 mm maximum to dial in precise bend depths.
Replacing the Airtac SUJ Adjustable Cylinder SUJ40X150-40S with the SAUJ40X150-40S
To replace the discontinued SUJ40X150-40S, order the direct replacement SAUJ40X150-40S, which matches the 40 mm bore, 150 mm max stroke, 40 mm adjust window, 1/4" port, and FA/LB mounting. Choose the 40 mm adjust window if your mechanism requires field tuning the extend stroke down to 110 mm. For the -S magnet, note the sensor change from legacy CS1-B/DS1-B to current CMSG/DMSG/EMSG on the SAUJ. Since the 150 mm stroke exceeds 300 mm, verify side-load limits to prevent guide bushing wear. The stop screw sets end position only and does not lock the load.
Replacement checklist
- ✓ Same bore / stroke → SAUJ40X150-40S
- ✓ 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 SUJ40X150-40S FAQ
Yes, the SUJ40X150-40S is discontinued. The direct replacement is the SAUJ40X150-40S, which matches the 40 mm bore, 150 mm stroke, 40 mm adjust window, 1/4" port, and FA/LB mounting. The SAUJ also offers the SAUF built-in-valve variant the SU line lacked.
The external stop screw window is 40 mm, allowing you to shorten the extend stroke from 150 mm down to 110 mm on-site. The stop sets end position only; it is not a load lock.
Related AirTAC SAU Cylinders
Request a Quote for the SAUJ40X150-40S
Send us the quantity and destination. We confirm price, stock and lead time on the SAUJ40X150-40S replacement — usually within 7-8 hours.