This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ40X150-50SN, 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 SUJ40X150-50SN
The AirTAC Airtac SUJ Adjustable Cylinder SUJ40X150-50SN 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 SAUJ40X150-50SN, which matches its bore, stroke, force and mounting.
- BoreØ40 mm
- Stroke150 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM12×1.25
- StatusDiscontinued → SAUJ40X150-50SN
- 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 SUJ40X150-50SN
The AirTAC SUJ40X150-50SN is a double-acting double-rod adjustable-stroke profile cylinder, now discontinued and replaced by the direct replacement SAUJ40X150-50SN. It features a 40mm bore, a 1/4" port, and an external stop screw that lets you trim the extend stroke by up to 50mm on-site, yielding a usable extend range of 100-150mm. The stop screw sets the end position but is not a load lock.
The SAUJ replacement retains the exact bore, stroke, force, port, and FA/LB mounting, but upgrades sensing to current CMSG/DMSG/EMSG switches from the legacy CS1-B/DS1-B used here. The NBR seals support -20 to +70C, and a plain cylinder drifts on air loss, requiring an external rod lock for held loads.
Airtac SUJ Adjustable Cylinder SUJ40X150-50SN Technical Specifications
| Model | Airtac SUJ Adjustable Cylinder SUJ40X150-50SN |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ40X150-50SN |
| 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 SAUJ40X150-50SN 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 SAUJ40X150-50SN 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 SUJ40X150-50SN
| 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 SUJ40X150-50SN Is Used
Variable Depth Drilling
Adjusts the extend stroke on-site to control drill depth for different material thicknesses without changing the cylinder.
Adjustable Pusher Stops
Trims the extend stroke by up to 50mm to accommodate varying package sizes on a 1/4" port profile cylinder line.
Variable Position Diverter
Sets exact divert distances on the fly for sorting mixed product lengths, using the stop screw for end positioning.
Replacing the Airtac SUJ Adjustable Cylinder SUJ40X150-50SN with the SAUJ40X150-50SN
To replace the discontinued SUJ40X150-50SN, order the direct replacement SAUJ40X150-50SN, which matches the 40mm bore, 150mm nominal stroke, 50mm adjust window, 1/4" port, and FA/LB mounting. Choose the 50mm adjust window when you need precise field tuning of the extend stroke from 100 to 150mm. Because this unit has the -S magnet, upgrade your position sensing from legacy CS1-B/DS1-B to current CMSG/DMSG/EMSG switches. For the 150mm stroke, verify side-load alignment to prevent rod binding, and note that the stop screw sets end position only, requiring an external rod lock for held loads.
Replacement checklist
- ✓ Same bore / stroke → SAUJ40X150-50SN
- ✓ 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 SUJ40X150-50SN FAQ
Yes, the AirTAC SUJ40X150-50SN is discontinued. The direct replacement is the SAUJ40X150-50SN, which matches the 40mm bore, 150mm stroke, 50mm adjust window, 1/4" port, and FA/LB mounting. The SAUJ also uses current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B.
The external stop screw provides a 50mm adjust window, shortening the extend stroke from the 150mm maximum down to 100mm on-site. The stop sets end position and is not a load lock.
Related AirTAC SAU Cylinders
Request a Quote for the SAUJ40X150-50SN
Send us the quantity and destination. We confirm price, stock and lead time on the SAUJ40X150-50SN replacement — usually within 7-8 hours.