This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ40X450-100, 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 SUJ40X450-100
The AirTAC Airtac SUJ Adjustable Cylinder SUJ40X450-100 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 SAUJ40X450-100, which matches its bore, stroke, force and mounting.
- BoreØ40 mm
- Stroke450 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM12×1.25
- StatusDiscontinued → SAUJ40X450-100
- 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 SUJ40X450-100
The AirTAC SUJ40X450-100 is a double-acting double-rod profile cylinder with a 450 mm nominal stroke and a 100 mm external stop-screw window, letting you trim the extend stroke on-site down to 350 mm. The 1/4" port and extruded aluminum profile barrel make it shorter than an ISO 15552 cylinder of the same bore.
This SUJ model is discontinued and the direct replacement is the SAUJ40X450-100, which retains the 16 mm rod, M12x1.25 thread, and FA/LB mounting. The SAUJ upgrade uses current CMSG/DMSG/EMSG sensors, whereas this legacy SKU used CS1-B/DS1-B switches. Because this unit has no magnet, it cannot take a magnetic switch.
Airtac SUJ Adjustable Cylinder SUJ40X450-100 Technical Specifications
| Model | Airtac SUJ Adjustable Cylinder SUJ40X450-100 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ40X450-100 |
| 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 SAUJ40X450-100 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 SAUJ40X450-100 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 SUJ40X450-100
| 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 SUJ40X450-100 Is Used
Variable Pitch Indexing
Pushing parts into a fixture where the extend stop must be dialed in between 350 and 450 mm on-site to accommodate different material lengths without swapping cylinders.
Variable Depth Pallet Stops
Halting pallets at different depths using the 100 mm trim window, allowing a single 450 mm nominal stroke cylinder to handle multiple pallet configurations.
Replacing the Airtac SUJ Adjustable Cylinder SUJ40X450-100 with the SAUJ40X450-100
To replace the discontinued SUJ40X450-100, use the direct replacement SAUJ40X450-100, matching the 40 mm bore, 450 mm stroke, 100 mm adjust window, and 1/4" port. The 100 mm adjust window is ideal if your end position needs field tuning between 350 and 450 mm. Retain FA or LB mounting from the AirTAC SC series. Because this SKU lacks a magnet, there is no sensor to migrate, but if upgrading to an -S SAUJ, plan for CMSG/DMSG/EMSG sensors instead of legacy CS1-B/DS1-B. At 450 mm stroke, use external guides to prevent rod bending and manage side loads.
Replacement checklist
- ✓ Same bore / stroke → SAUJ40X450-100
- ✓ 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 SUJ40X450-100 FAQ
Yes, the SUJ40X450-100 is discontinued. The direct replacement is the SAUJ40X450-100, which matches the 40 mm bore, 450 mm stroke, 100 mm adjust window, and 1/4" port. The SAUJ also offers the SAUF built-in-valve variant the SU line lacked.
The external stop screw provides a 100 mm adjust window, allowing you to shorten the extend stroke from the 450 mm maximum down to 350 mm. The stop sets end position and is not a load lock; use an external rod lock for held loads.
Related AirTAC SAU Cylinders
Request a Quote for the SAUJ40X450-100
Send us the quantity and destination. We confirm price, stock and lead time on the SAUJ40X450-100 replacement — usually within 7-8 hours.