This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ40X225-40, 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 SUJ40X225-40
The AirTAC Airtac SUJ Adjustable Cylinder SUJ40X225-40 is a double-acting profile-type standard cylinder with a Ø40mm bore and 225mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAUJ40X225-40, which matches its bore, stroke, force and mounting.
- BoreØ40 mm
- Stroke225 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM12×1.25
- StatusDiscontinued → SAUJ40X225-40
- 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 SUJ40X225-40
The AirTAC SUJ40X225-40 is a double-acting, double-rod profile cylinder with an adjustable stroke, letting you trim the extend stroke by up to 40 mm on-site. This yields a usable extend range of 185-225 mm from the 225 mm nominal maximum. This SUJ model is discontinued; the direct replacement is the SAUJ40X225-40, matching the bore, stroke, force, and port.
The stop screw sets the end position but is not a load lock. Because this SKU lacks a magnet, it cannot take a switch. The SAUJ upgrade switches to current CMSG/DMSG/EMSG sensors from the legacy CS1-B/DS1-B, while retaining FA/LB mounting.
Airtac SUJ Adjustable Cylinder SUJ40X225-40 Technical Specifications
| Model | Airtac SUJ Adjustable Cylinder SUJ40X225-40 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ40X225-40 |
| Bore size | Ø40 mm |
| Stroke | 225 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 SAUJ40X225-40 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 SAUJ40X225-40 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 SUJ40X225-40
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 40 | Bore size in mm. |
| ×225 | 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 SUJ40X225-40 Is Used
Variable Depth Drilling
Adjusting the extend stroke on-site allows a precise 185 to 225 mm feed depth for drilling operations without swapping the entire cylinder.
Variable Length Diverter
Tuning the extend stop accommodates different package sizes on a conveyor line, ensuring the diverter meets exact product dimensions.
Adjustable Height Stops
Trimming the extend stroke by up to 40 mm sets precise mechanical end stops for varying pallet heights in a compact profile body.
Replacing the Airtac SUJ Adjustable Cylinder SUJ40X225-40 with the SAUJ40X225-40
To replace the discontinued SUJ40X225-40, order the direct replacement SAUJ40X225-40, which keeps the 40 mm bore, 225 mm stroke, 40 mm adjust window, and 1/4" port. Choose the 40 mm adjust window if you need to tune the extend stroke down to 185 mm; the external stop sets end position but is not a lock, so use an external rod lock for held loads. This non-magnetic SKU cannot take a switch; upgrading to an SAUJ with -S adds CMSG/DMSG/EMSG sensor capability. For this 225 mm stroke, verify side-load limits. Mounting fits the AirTAC SC series via FA/LB brackets.
Replacement checklist
- ✓ Same bore / stroke → SAUJ40X225-40
- ✓ 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 SUJ40X225-40 FAQ
Yes, the SUJ40X225-40 is discontinued. The direct replacement is the SAUJ40X225-40, matching the 40 mm bore, 225 mm stroke, 40 mm 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 window is 40 mm, allowing an extend stroke of 185-225 mm. The stop sets end position but is not a load lock.
Related AirTAC SAU Cylinders
Request a Quote for the SAUJ40X225-40
Send us the quantity and destination. We confirm price, stock and lead time on the SAUJ40X225-40 replacement — usually within 7-8 hours.