This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ100X450-40, 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 SUJ100X450-40
The AirTAC Airtac SUJ Adjustable Cylinder SUJ100X450-40 is a double-acting profile-type standard cylinder with a Ø100mm bore and 450mm stroke, 1/2" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAUJ100X450-40, which matches its bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke450 mm
- Port size1/2"
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAUJ100X450-40
- 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 SUJ100X450-40
The AirTAC SUJ100X450-40 is a double-acting, double-rod profile cylinder with a 450 mm nominal stroke and a 40 mm adjustable stroke window. An external stop screw lets you trim the extend stroke on-site by up to 40 mm, yielding a usable extend range of 410-450 mm. It features a 1/2" port, an M20x1.5 rod thread, and 29 mm adjustable cushions. Note that this stop screw merely sets the end position; it is not a load lock.
This SUJ model is discontinued and the direct replacement is the SAUJ100X450-40, retaining the exact bore, stroke, force, 1/2" port, and FA/LB mounting. The SAUJ upgrade transitions to current CMSG/DMSG/EMSG sensors, as this legacy unit used CS1-B/DS1-B switches. As a non-magnet SKU, it cannot accept magnetic sensing. Because the 450 mm stroke invites rod bending, use external guides to manage side loads.
Airtac SUJ Adjustable Cylinder SUJ100X450-40 Technical Specifications
| Model | Airtac SUJ Adjustable Cylinder SUJ100X450-40 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ100X450-40 |
| Bore size | Ø100 mm |
| Stroke | 450 mm |
| Acting type | Double acting |
| Port size | 1/2" |
| Rod thread | M20×1.5 |
| 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, 29 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SU datasheet (now discontinued). The SAUJ100X450-40 carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø100mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3927 N | 3682 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 kgf | |
The SAUJ100X450-40 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 SUJ100X450-40
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 100 | 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 SUJ100X450-40 Is Used
Variable Depth Boring
Trimming the extend stroke by up to 40 mm on-site allows a boring head to hit multiple depth targets on a single fixture without swapping cylinders.
Adjustable Diverter Arms
Diverter gates handling mixed product sizes use the 410-450 mm extend range to tune the blocking position precisely at the conveyor edge.
Variable Height Pallet Stops
Pallet stops on a 100 mm bore cylinder can be dialed back 40 mm to accommodate varying pallet depths while maintaining high push force.
Replacing the Airtac SUJ Adjustable Cylinder SUJ100X450-40 with the SAUJ100X450-40
To replace the discontinued SUJ100X450-40, order the direct replacement SAUJ100X450-40, which matches the 100 mm bore, 450 mm stroke, 40 mm adjust window, 1/2" port, and FA/LB mounting. Choose the 40 mm adjust window if your assembly requires trimming the extend stroke by up to 40 mm on-site rather than machining custom spacers. Because this SKU lacks a magnet, it cannot accept sensors; the SAUJ upgrade uses CMSG/DMSG/EMSG switches instead of the legacy CS1-B/DS1-B. For the 450 mm stroke, incorporate external guides to prevent rod bending and manage side loads. Finally, the stop screw sets end position but is not a lock; for load holding on air loss, install an external rod lock or pilot-operated check valve.
Replacement checklist
- ✓ Same bore / stroke → SAUJ100X450-40
- ✓ 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 SUJ100X450-40 FAQ
Yes, the SUJ100X450-40 is discontinued. The direct replacement is the SAUJ100X450-40, which matches the 100 mm bore, 450 mm stroke, 40 mm adjust window, 1/2" port, and FA/LB mounting. The SAUJ also uses current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B.
The external stop screw provides a 40 mm adjust window, allowing you to shorten the 450 mm extend stroke down to 410 mm. The stop sets end position and is not a load lock.
Related AirTAC SAU Cylinders
Request a Quote for the SAUJ100X450-40
Send us the quantity and destination. We confirm price, stock and lead time on the SAUJ100X450-40 replacement — usually within 7-8 hours.