This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ40X175-75, 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 SUJ40X175-75
The AirTAC Airtac SUJ Adjustable Cylinder SUJ40X175-75 is a double-acting profile-type standard cylinder with a Ø40mm bore and 175mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAUJ40X175-75, which matches its bore, stroke, force and mounting.
- BoreØ40 mm
- Stroke175 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM12×1.25
- StatusDiscontinued → SAUJ40X175-75
- 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 SUJ40X175-75
The AirTAC SUJ40X175-75 is a double-acting, double-rod profile cylinder with a 40mm bore and 175mm maximum stroke. An external stop screw lets you trim the extend stroke by up to 75mm on-site, giving a usable extend window of 100-175mm. The direct replacement is the SAUJ40X175-75, matching the 1/4" port, M12x1.25 rod thread, and 21mm cushions.
The stop screw sets the end position but is not a load lock; use an external rod lock for held loads. This SKU lacks a magnet and cannot take sensors. The SAUJ successor upgrades to CMSG/DMSG/EMSG switches, whereas this SUJ used legacy CS1-B/DS1-B units. It uses FA/LB mounts and is shorter than an ISO 15552 cylinder.
Airtac SUJ Adjustable Cylinder SUJ40X175-75 Technical Specifications
| Model | Airtac SUJ Adjustable Cylinder SUJ40X175-75 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ40X175-75 |
| Bore size | Ø40 mm |
| Stroke | 175 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 SAUJ40X175-75 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 SAUJ40X175-75 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 SUJ40X175-75
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 40 | Bore size in mm. |
| ×175 | 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 SUJ40X175-75 Is Used
Variable Pitch Forming
Bending or pressing parts where the material thickness varies, requiring the extend stroke to be dialed back precisely on-site without re-mounting the actuator.
Adjustable Transfer Stops
Diverting or stopping different box sizes on a line, where the 75mm trim window allows operators to quickly set the exact finger extension length.
Variable Depth Sealing
Sealing cartons of varying depths, using the external stop to tune the extend endpoint so the sealing head contacts the flap perfectly.
Replacing the Airtac SUJ Adjustable Cylinder SUJ40X175-75 with the SAUJ40X175-75
To replace this discontinued SUJ40X175-75, order the SAUJ40X175-75 direct: it keeps the 40mm bore, 175mm stroke, 75mm adjust window, 1/4" port, and FA/LB mounting. Choose the 75mm adjust window if you need wide on-site extend tuning (100-175mm). Because this non-magnetic SKU cannot take switches, the SAUJ upgrade path uses CMSG/DMSG/EMSG sensors. For this 175mm stroke, verify side-load limits. Remember the stop screw sets end position only; it is not a lock, so add an external rod lock for held loads.
Replacement checklist
- ✓ Same bore / stroke → SAUJ40X175-75
- ✓ 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 SUJ40X175-75 FAQ
Yes, the SUJ40X175-75 is discontinued. The direct replacement is the SAUJ40X175-75, which matches the 40mm bore, 175mm stroke, 75mm 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 window is 75mm, allowing the 175mm extend stroke to be shortened to 100mm on-site. The stop sets end position and is not a load lock.
Related AirTAC SAU Cylinders
Request a Quote for the SAUJ40X175-75
Send us the quantity and destination. We confirm price, stock and lead time on the SAUJ40X175-75 replacement — usually within 7-8 hours.