This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ100X450-20, 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 SUJ100X450-20
The AirTAC Airtac SUJ Adjustable Cylinder SUJ100X450-20 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 SAUJ100X450-20, which matches its bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke450 mm
- Port size1/2"
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAUJ100X450-20
- 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 SUJ100X450-20
The AirTAC SUJ100X450-20 is a double-acting double-rod adjustable-stroke profile cylinder, now discontinued and replaced by the SAUJ100X450-20. Its external stop screw lets you trim the extend stroke by up to 20 mm on-site, giving a usable 430-450 mm extension out of the 450 mm nominal maximum. The stop screw sets the end position but is not a load lock. It features a 1/2 inch port, an M20x1.5 rod thread, and 29 mm adjustable cushions.
The SAUJ direct keeps the exact bore, stroke, force, port, and FA/LB mounting, but upgrades sensing from legacy CS1-B/DS1-B to current CMSG/DMSG/EMSG sensors. A plain cylinder drifts on air loss, so use an external rod lock for held loads. At 450 mm stroke, use external guides to prevent rod bending.
Airtac SUJ Adjustable Cylinder SUJ100X450-20 Technical Specifications
| Model | Airtac SUJ Adjustable Cylinder SUJ100X450-20 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ100X450-20 |
| 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 SAUJ100X450-20 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 SAUJ100X450-20 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 SUJ100X450-20
| 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 SUJ100X450-20 Is Used
Press Tonnage Dampening
Needs field stroke tuning to set precise 430-450 mm extend endpoints during light-duty press setups, absorbing shock without over-traveling.
Transfer Line Diverting
Requires adjustable extend stops to fine-tune product pusher travel on the fly, ensuring packages of varying widths hit the correct lane.
Pallet Positioning Stops
Demands on-site stroke trimming to dial in the exact 20 mm adjust window, allowing operators to reposition pallet stops without changing hardware.
Replacing the Airtac SUJ Adjustable Cylinder SUJ100X450-20 with the SAUJ100X450-20
To replace this discontinued SUJ100X450-20, use the SAUJ100X450-20 direct, which preserves the 100 mm bore, 450 mm stroke, 1/2 inch port, and FA/LB mounting. The SAUJ also introduces the SAUF built-in-valve variant. Choose the 20 mm adjust window if your extend stroke needs 430-450 mm field tuning. Because this SKU lacks a magnet (-S), it cannot take a switch; the SAUJ uses CMSG/DMSG/EMSG sensors. For the 450 mm stroke, add external guides to manage side-load and rod-bending risks.
Replacement checklist
- ✓ Same bore / stroke → SAUJ100X450-20
- ✓ 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 SUJ100X450-20 FAQ
Yes, the SUJ100X450-20 is discontinued. The direct replacement is the SAUJ100X450-20, which matches the 100 mm bore, 450 mm stroke, 1/2 inch port, and FA/LB mounting. The SAUJ upgrades sensing to CMSG/DMSG/EMSG and offers the SAUF built-in-valve variant.
The external stop screw provides a 20 mm adjust window, allowing you to trim the 450 mm extend stroke down to 430 mm. The stop sets end position and is not a load lock.
Related AirTAC SAU Cylinders
Request a Quote for the SAUJ100X450-20
Send us the quantity and destination. We confirm price, stock and lead time on the SAUJ100X450-20 replacement — usually within 7-8 hours.