This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ40X75-75, 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 SUJ40X75-75
The AirTAC Airtac SUJ Adjustable Cylinder SUJ40X75-75 is a double-acting profile-type standard cylinder with a Ø40mm bore and 75mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAUJ40X75-75, which matches its bore, stroke, force and mounting.
- BoreØ40 mm
- Stroke75 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM12×1.25
- StatusDiscontinued → SAUJ40X75-75
- 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 SUJ40X75-75
The AirTAC SUJ40X75-75 is a double-acting double-rod profile cylinder with an external stop screw that lets you trim the extend stroke by up to 75 mm on-site (nominal 75 mm is the maximum). It features a 1/4" port, a 16 mm rod, and 21 mm adjustable air cushions. The stop screw sets the end position but is not a load lock; use an external rod lock for held loads.
This SUJ model is discontinued. The direct replacement is the SAUJ40X75-75, matching the 40 mm bore, 75 mm stroke, force, port, and FA/LB mounting. The SAUJ upgrades to current CMSG/DMSG/EMSG sensors (this SKU lacks a magnet and cannot take a switch) and offers the SAUF built-in-valve variant.
Airtac SUJ Adjustable Cylinder SUJ40X75-75 Technical Specifications
| Model | Airtac SUJ Adjustable Cylinder SUJ40X75-75 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ40X75-75 |
| Bore size | Ø40 mm |
| Stroke | 75 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 SAUJ40X75-75 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 SAUJ40X75-75 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 SUJ40X75-75
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 40 | Bore size in mm. |
| ×75 | 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 SUJ40X75-75 Is Used
Variable Pitch Pushing
Adjusting the extend stroke on-site to push parts of varying widths into a press without swapping the entire cylinder.
Variable Position Diverting
Tuning the extend stop to actuate diverter gates at different distances along a packaging conveyor line.
Adjustable Sealing Jaws
Setting precise extend endpoints for sealing jaws to accommodate varying package depths on the fly.
Replacing the Airtac SUJ Adjustable Cylinder SUJ40X75-75 with the SAUJ40X75-75
To replace the discontinued SUJ40X75-75, order the direct replacement SAUJ40X75-75, which preserves the 40 mm bore, 75 mm stroke, 1/4" port, and FA/LB mounting. The 75 mm adjust window allows full on-site extend trimming down to 0 mm, which beats using a fixed SAU cylinder plus an external stop. Because this SKU lacks a magnet, it cannot take a switch; the SAUJ accepts CMSG/DMSG/EMSG sensors. For strokes of 300 mm or longer, verify your side-load limits. Note that the stop screw sets end position but does not hold the load on air loss.
Replacement checklist
- ✓ Same bore / stroke → SAUJ40X75-75
- ✓ 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 SUJ40X75-75 FAQ
Yes, the SUJ40X75-75 is discontinued. The SAUJ uses current CMSG/DMSG/EMSG sensors.
The external stop screw window is 75 mm, allowing you to trim the extend stroke from the 75 mm maximum down to 0 mm. The stop sets end position but is not a load lock.
Related AirTAC SAU Cylinders
Request a Quote for the SAUJ40X75-75
Send us the quantity and destination. We confirm price, stock and lead time on the SAUJ40X75-75 replacement — usually within 7-8 hours.