This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ40X225-30, 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 SUJ40X225-30
The AirTAC Airtac SUJ Adjustable Cylinder SUJ40X225-30 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 SAUJ40X225-30, which matches its bore, stroke, force and mounting.
- BoreØ40 mm
- Stroke225 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM12×1.25
- StatusDiscontinued → SAUJ40X225-30
- 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 SUJ40X225-30
The AirTAC SUJ40X225-30 is a discontinued double-acting double-rod profile cylinder featuring a 225 mm maximum extend stroke and a 30 mm external stop screw window, allowing you to trim the extend stroke down to 195 mm on-site. The extruded aluminum profile barrel is notably shorter than an ISO 15552 cylinder of the same bore.
Because this SKU lacks a magnet, it cannot accept a magnetic switch for position sensing. As a direct replacement, use the SAUJ40X225-30: it matches the 40 mm bore, stroke, force, port, and SC-series FA/LB mounting, but upgrades sensing to current CMSG/DMSG/EMSG switches (the SUJ used legacy CS1-B/DS1-B).
Airtac SUJ Adjustable Cylinder SUJ40X225-30 Technical Specifications
| Model | Airtac SUJ Adjustable Cylinder SUJ40X225-30 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ40X225-30 |
| 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 SAUJ40X225-30 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 SAUJ40X225-30 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 SUJ40X225-30
| 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 SUJ40X225-30 Is Used
Variable Pitch Indexing
Allows on-site extend stroke tuning from 195 to 225 mm to alter the pitch of parts feeding into a machining center without swapping cylinders.
Adjustable Transfer Pusher
Provides a field-adjustable stop for a transfer pusher, letting operators trim the 225 mm stroke by up to 30 mm to accommodate changing package sizes.
Variable Depth Diverter
Enables quick recalibration of a sorting diverter arm by shortening the extend stroke on-site, ensuring precise routing of varied inventory.
Replacing the Airtac SUJ Adjustable Cylinder SUJ40X225-30 with the SAUJ40X225-30
To replace the discontinued SUJ40X225-30, select the direct replacement SAUJ40X225-30, which preserves the 40 mm bore, 225 mm nominal stroke, 30 mm adjust window, 1/4" port, and FA/LB mounting. Choose the 30 mm adjust window when you need precise end-position tuning between 195 mm and 225 mm without adding external stops. Since this specific SKU has no magnet, it cannot take a sensor; if you require position detection on the SAUJ replacement, order an -S version and use CMSG/DMSG/EMSG switches instead of the legacy CS1-B/DS1-B. For strokes of 300 mm or longer, verify your guide system handles the side-load moments. Remember the stop screw sets end position but is not a load lock; use an external rod lock for held loads.
Replacement checklist
- ✓ Same bore / stroke → SAUJ40X225-30
- ✓ 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 SUJ40X225-30 FAQ
Yes, the SUJ40X225-30 is discontinued. The direct replacement is the SAUJ40X225-30, which matches the 40 mm bore, 225 mm stroke, 30 mm 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.
This double-acting double-rod cylinder has a 30 mm adjust window, allowing you to shorten the 225 mm extend stroke down to 195 mm. The stop screw sets end position but is not a load lock.
Related AirTAC SAU Cylinders
Request a Quote for the SAUJ40X225-30
Send us the quantity and destination. We confirm price, stock and lead time on the SAUJ40X225-30 replacement — usually within 7-8 hours.