This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ40X450-10, 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 SUJ40X450-10
The AirTAC Airtac SUJ Adjustable Cylinder SUJ40X450-10 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 SAUJ40X450-10, which matches its bore, stroke, force and mounting.
- BoreØ40 mm
- Stroke450 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM12×1.25
- StatusDiscontinued → SAUJ40X450-10
- 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 SUJ40X450-10
The AirTAC SUJ40X450-10 is a double-acting double-rod profile cylinder with a 40mm bore and 450mm maximum extend stroke. An external stop screw lets you trim the extend stroke by up to 10mm on-site, giving a usable 440-450mm window to dial in machine positioning. The 1/4" port and M12x1.25 rod thread are fixed to this size.
This SUJ model is discontinued; the direct replacement is the SAUJ40X450-10, matching the bore, stroke, force, port, and FA/LB mounting. The SAUJ upgrades sensing to current CMSG/DMSG/EMSG switches (this SKU lacks a magnet and cannot take any switch), while the SAU line adds a built-in-valve variant the SU lacked. The stop screw sets end position only; it is not a load lock, so use an external rod lock for held loads.
Airtac SUJ Adjustable Cylinder SUJ40X450-10 Technical Specifications
| Model | Airtac SUJ Adjustable Cylinder SUJ40X450-10 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ40X450-10 |
| 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 SAUJ40X450-10 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 SAUJ40X450-10 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 SUJ40X450-10
| 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 SUJ40X450-10 Is Used
Press Fit Dialing
Trimming the 10mm extend window lets operators fine-tune a pressing depth on-site without re-machining hard stops.
Transfer Stop Adjustment
Shorten the extend stroke slightly to accommodate varying package sizes on a transfer line using the external stop screw.
Pallet Positioning
Dial in the exact push-off distance for pallets of varying widths, using the 440-450mm usable stroke to prevent over-travel.
Replacing the Airtac SUJ Adjustable Cylinder SUJ40X450-10 with the SAUJ40X450-10
To replace the discontinued SUJ40X450-10, specify the SAUJ40X450-10 direct. Choose the 10mm adjust window when you need minor on-site extend trimming (440-450mm) rather than fitting a fixed SAU plus an external stop. Mounting remains FA or LB, compatible with the AirTAC SC series only. Because this SKU has no magnet, you cannot fit a switch; the SAUJ accepts CMSG/DMSG/EMSG sensors. At 450mm stroke, prevent rod bending by supporting the load with external guides to minimize side-load.
Replacement checklist
- ✓ Same bore / stroke → SAUJ40X450-10
- ✓ 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 SUJ40X450-10 FAQ
Yes, it is discontinued. The direct replacement is the SAUJ40X450-10, matching the 40mm bore, 450mm stroke, 1/4" port, and FA/LB mounting. The SAUJ uses current CMSG/DMSG/EMSG sensors, whereas this SUJ SKU lacks a magnet and cannot take a switch.
The external stop screw trims the extend stroke by up to 10mm on-site, yielding a 440-450mm usable window. The stop sets end position only; it is not a load lock, so use an external rod lock for held loads.
Related AirTAC SAU Cylinders
Request a Quote for the SAUJ40X450-10
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