This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ100X120-40S, 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 SUJ100X120-40S
The AirTAC SUJ Adjustable Cylinder SUJ100X120-40S is a double-acting profile-type standard cylinder with a Ø100mm bore and 120mm stroke, 1/2" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAUJ100X120-40S, which matches its bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke120 mm
- Port size1/2"
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAUJ100X120-40S
- 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 SUJ100X120-40S
The AirTAC SUJ100X120-40S is a discontinued double-acting double-rod adjustable-stroke profile cylinder. An external stop screw lets you trim the extend stroke by up to 40 mm on-site, giving a usable extend range of 80-120 mm from the 120 mm nominal maximum. It features a 1/2 inch port, a 25 mm rod, and 29 mm adjustable air cushions. This stop screw sets the end position; it is not a load lock.
Because this model is end-of-life, the direct replacement is the SAUJ100X120-40S, which matches the bore, stroke, force, port, and SC-series FA/LB mounting. The SAUJ upgrade uses current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B switches on this -S magnet unit. A plain cylinder drifts on air loss, so use an external rod lock for held loads.
Airtac SUJ Adjustable Cylinder SUJ100X120-40S Technical Specifications
| Model | Airtac SUJ Adjustable Cylinder SUJ100X120-40S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ100X120-40S |
| Bore size | Ø100 mm |
| Stroke | 120 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 SAUJ100X120-40S 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 SAUJ100X120-40S 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 SUJ100X120-40S
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×120 | 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 SUJ100X120-40S Is Used
Variable Depth Forming Press
Trimming the extend stroke by up to 40 mm on-site allows operators to change material forming depth without swapping cylinders.
Adjustable Package Diverters
Tuning the extend end position accommodates varying carton widths on a packaging line while maintaining compact profile dimensions.
Variable Height Pallet Stops
Shortening the extend stroke on-site lets a single actuator handle different pallet heights without adding external mechanical stops.
Replacing the Airtac SUJ Adjustable Cylinder SUJ100X120-40S with the SAUJ100X120-40S
To replace the discontinued SUJ100X120-40S, order the SAUJ100X120-40S for an direct match. Choose the 40 mm adjust window if you need to trim the extend stroke on-site between 80 and 120 mm. Mounting uses the AirTAC SC series FA or LB foot brackets. Because this unit has the -S magnet, you must change to CMSG/DMSG/EMSG sensors for the SAUJ. For strokes of 300 mm or longer, verify your side-load limits to prevent guide wear. The stop screw sets end position but does not lock the load.
Replacement checklist
- ✓ Same bore / stroke → SAUJ100X120-40S
- ✓ 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 SUJ100X120-40S FAQ
Yes, the SUJ100X120-40S is discontinued. The direct replacement is the SAUJ100X120-40S, matching the 100 mm bore, 120 mm stroke, 40 mm adjust window, 1/2 inch port, and FA/LB mounting. You must upgrade the legacy CS1-B/DS1-B sensors to CMSG/DMSG/EMSG switches.
The theoretical max is 801 kgf at 1.0 MPa. The external stop screw provides a 40 mm adjust window, allowing you to trim the 120 mm extend stroke down to 80 mm on-site.
Related AirTAC SAU Cylinders
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