This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ40X225-100, 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 SUJ40X225-100
The AirTAC Airtac SUJ Adjustable Cylinder SUJ40X225-100 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 SAUJ40X225-100, which matches its bore, stroke, force and mounting.
- BoreØ40 mm
- Stroke225 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM12×1.25
- StatusDiscontinued → SAUJ40X225-100
- 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 SUJ40X225-100
The AirTAC SUJ40X225-100 is a double-acting double-rod profile cylinder with an adjustable stroke, letting you trim the extend stroke by up to 100 mm on-site for a usable range of 125-225 mm. It features a 1/4" port and M12x1.25 rod thread. This SUJ model is discontinued; the direct replacement is the SAUJ40X225-100, matching the bore, stroke, force, and SC-series FA/LB mounting.
The external stop screw sets the end position but is not a load lock; use an external rod lock for held loads. The SAUJ upgrade uses current CMSG/DMSG/EMSG sensors, whereas this non-magnet SKU used legacy CS1-B/DS1-B and cannot take a switch. The compact profile barrel is shorter than standard cylinders of the same bore.
Airtac SUJ Adjustable Cylinder SUJ40X225-100 Technical Specifications
| Model | Airtac SUJ Adjustable Cylinder SUJ40X225-100 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ40X225-100 |
| 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 SAUJ40X225-100 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 SAUJ40X225-100 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 SUJ40X225-100
| 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 SUJ40X225-100 Is Used
Variable Depth Boring
Trimming the extend stroke by up to 100 mm on-site allows precise depth control for boring operations without swapping the entire cylinder.
Adjustable Transfer Pushers
Tuning the extend stroke from 225 mm down to 125 mm accommodates changing package sizes on a transfer line using the same actuator.
Dynamic Forming Stops
The external stop screw provides a hard mechanical end position for forming stops, easily adjusted as carton dimensions fluctuate.
Replacing the Airtac SUJ Adjustable Cylinder SUJ40X225-100 with the SAUJ40X225-100
To replace the discontinued SUJ40X225-100, order the direct replacement SAUJ40X225-100, which preserves the 40 mm bore, 225 mm nominal stroke, 100 mm adjust window, 1/4" port, and FA/LB mounting. Choose the 100 mm adjust window if you need to trim the extend stroke on-site down to 125 mm. Because this non-magnet SKU lacks a switch, the SAUJ upgrade requires current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B. For stroke lengths of 300 mm or more, verify side-load limits to prevent rod binding.
Replacement checklist
- ✓ Same bore / stroke → SAUJ40X225-100
- ✓ 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 SUJ40X225-100 FAQ
Yes, the SUJ40X225-100 is discontinued. The direct replacement is the SAUJ40X225-100, offering the same 40 mm bore, 225 mm stroke, 100 mm adjust window, 1/4" port, and FA/LB mounting. The SAUJ also supports the SAUF built-in-valve variant and uses current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B.
The 100 mm adjust window allows you to shorten the extend stroke on-site, yielding a usable range of 125-225 mm. The stop screw sets end position but is not a load lock.
Related AirTAC SAU Cylinders
Request a Quote for the SAUJ40X225-100
Send us the quantity and destination. We confirm price, stock and lead time on the SAUJ40X225-100 replacement — usually within 7-8 hours.