This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ40X450-30, 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 SUJ40X450-30
The AirTAC Airtac SUJ Adjustable Cylinder SUJ40X450-30 is a double-acting profile-type standard cylinder with a Ø40mm bore and 450mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAUJ40X450-30, which matches its bore, stroke, force and mounting.
- BoreØ40 mm
- Stroke450 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM12×1.25
- StatusDiscontinued → SAUJ40X450-30
- 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 SUJ40X450-30
The AirTAC SUJ40X450-30 is a double-acting double-rod profile cylinder with a 40mm bore and 450mm nominal stroke. An external stop screw lets you trim the extend stroke by up to 30mm on-site, yielding a usable 420-450mm window.
Upgrading to the SAUJ moves you to current CMSG/DMSG/EMSG sensors from the legacy CS1-B/DS1-B. The stop screw sets end position but is not a load lock; use an external rod lock for held loads.
Airtac SUJ Adjustable Cylinder SUJ40X450-30 Technical Specifications
| Model | Airtac SUJ Adjustable Cylinder SUJ40X450-30 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ40X450-30 |
| Bore size | Ø40 mm |
| Stroke | 450 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 SAUJ40X450-30 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 SAUJ40X450-30 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 SUJ40X450-30
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 40 | Bore size in mm. |
| ×450 | 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 SUJ40X450-30 Is Used
Variable Pitch Indexing
Allows on-site extend stroke tuning up to 30mm to alter part pitch without swapping cylinders.
Adjustable Pusher Stops
Sets precise 420-450mm ejection positions for varying carton lengths directly at the machine.
Dynamic Diverter Gate
Trims the extend stroke by up to 30mm to re-route items into different sorting lanes on demand.
Replacing the Airtac SUJ Adjustable Cylinder SUJ40X450-30 with the SAUJ40X450-30
To replace this discontinued SUJ40X450-30, order the SAUJ40X450-30 direct, which preserves the 1/4" port, 30mm adjust window, and FA/LB mounts. Choose the 30mm adjust window if you need precise field tuning of the extend stroke. Because this SKU lacks a magnet (-S), it cannot take a magnetic switch; the SAUJ upgrade uses CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B. At 450mm stroke, add external guides to prevent rod bending and manage side loads.
Replacement checklist
- ✓ Same bore / stroke → SAUJ40X450-30
- ✓ 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 SUJ40X450-30 FAQ
Yes, the SUJ40X450-30 is discontinued. The direct replacement is the SAUJ40X450-30, matching the 40mm bore, 450mm stroke, 30mm adjust window, 1/4" port, and FA/LB mounting.
The double-acting double-rod cylinder pushes 628N at 0.5MPa, 879N at 0.7MPa, and 1130N at 0.9MPa; pull is 528N at 0.5MPa; max is 128kgf. The external stop screw trims the extend stroke by up to 30mm on-site, giving a 420-450mm usable window.
Related AirTAC SAU Cylinders
Request a Quote for the SAUJ40X450-30
Send us the quantity and destination. We confirm price, stock and lead time on the SAUJ40X450-30 replacement — usually within 7-8 hours.