This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ100X450-50S, 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 SUJ100X450-50S
The AirTAC Airtac SUJ Adjustable Cylinder SUJ100X450-50S 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 SAUJ100X450-50S, which matches its bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke450 mm
- Port size1/2"
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAUJ100X450-50S
- 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 SUJ100X450-50S
The AirTAC SUJ100X450-50S is a double-acting double-rod profile cylinder with an external stop screw that lets you trim the extend stroke by up to 50 mm on-site, yielding a usable 400-450 mm extension from the 450 mm nominal maximum. The 1/2" port and M20x1.5 rod end handle high flow, while the 29 mm adjustable air cushions decelerate heavy loads smoothly.
This discontinued unit is fully replaced by the direct replacement SAUJ100X450-50S, retaining the exact bore, stroke, force, port, and FA/LB mounting. The SAUJ upgrades to current CMSG/DMSG/EMSG sensors (this SUJ used legacy CS1-B/DS1-B switches). The stop screw sets end position only; it is not a load lock, so add an external rod lock for held loads.
Airtac SUJ Adjustable Cylinder SUJ100X450-50S Technical Specifications
| Model | Airtac SUJ Adjustable Cylinder SUJ100X450-50S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ100X450-50S |
| 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 SAUJ100X450-50S 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 SAUJ100X450-50S 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 SUJ100X450-50S
| 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 SUJ100X450-50S Is Used
Press Fit Tuning
Allows operators to dial in the exact 400-450 mm extend position on-site for pressing bearings without machining hard stops.
Variable Length Diverter
Adjusts the extend stroke to deflect different package sizes on a conveyor, trimming up to 50 mm to clear varying widths.
Pallet Stop Positioning
Sets a precise end-of-stroke stop for pallets, letting maintenance shorten the extend by 50 mm if the pallet footprint changes.
Replacing the Airtac SUJ Adjustable Cylinder SUJ100X450-50S with the SAUJ100X450-50S
To replace the discontinued SUJ100X450-50S, specify the direct replacement SAUJ100X450-50S, which preserves the 100 mm bore, 450 mm stroke, 50 mm adjust window, 1/2" port, and FA/LB mounting. Choose the 50 mm adjust window if your extend stroke needs field tuning between 400 and 450 mm. Because this unit has the -S magnet, swap the legacy CS1-B/DS1-B switches for current CMSG/DMSG/EMSG sensors. At 450 mm stroke, prevent rod bending by supporting the load with external guides to minimize side-load. The stop screw sets end position but does not lock the load; use a pilot-operated check valve or external rod lock for holding.
Replacement checklist
- ✓ Same bore / stroke → SAUJ100X450-50S
- ✓ 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 SUJ100X450-50S FAQ
Yes, the SUJ100X450-50S is discontinued. The direct replacement is the SAUJ100X450-50S. It matches the 100 mm bore, 450 mm stroke, 50 mm adjust window, 1/2" port, and FA/LB mounting. You must upgrade the switches from legacy CS1-B/DS1-B to current CMSG/DMSG/EMSG sensors.
The external stop screw trims the extend stroke by up to 50 mm on-site, giving a usable 400-450 mm extension. The stop sets end position only; it is not a load lock.
Related AirTAC SAU Cylinders
Request a Quote for the SAUJ100X450-50S
Send us the quantity and destination. We confirm price, stock and lead time on the SAUJ100X450-50S replacement — usually within 7-8 hours.