This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ100X120-75, 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 SUJ100X120-75
The AirTAC Airtac SUJ Adjustable Cylinder SUJ100X120-75 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 SAUJ100X120-75, which matches its bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke120 mm
- Port size1/2"
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAUJ100X120-75
- 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 SUJ100X120-75
The AirTAC SUJ100X120-75 is a double-acting double-rod profile cylinder with an external stop screw that lets you trim the extend stroke by up to 75 mm on-site, yielding a usable 45 to 120 mm extend out of the 120 mm nominal maximum. The stop screw sets the end position but is not a load lock; a plain cylinder drifts on air loss, so fit an external rod lock or pilot-operated check valve for held loads.
This SUJ unit is discontinued; the direct replacement is the SAUJ100X120-75, matching the bore, stroke, force, port, and SC-series FA/LB mounting. The SAUJ upgrade adopts current CMSG/DMSG/EMSG sensors, whereas this legacy model used CS1-B/DS1-B switches. Because this specific SKU lacks a magnet, it cannot take a magnetic switch.
Airtac SUJ Adjustable Cylinder SUJ100X120-75 Technical Specifications
| Model | Airtac SUJ Adjustable Cylinder SUJ100X120-75 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ100X120-75 |
| 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 SAUJ100X120-75 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 SAUJ100X120-75 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 SUJ100X120-75
| 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 SUJ100X120-75 Is Used
Variable Stroke Pressing
Dial in the exact extend contact point on assemblies that vary slightly in height, using the stop screw to trim up to 75 mm off the 120 mm maximum stroke.
Custom End-Stop Positioning
Establish a hard mechanical end position for pallet stops that must be reconfigured on the floor without changing the entire cylinder mount.
Replacing the Airtac SUJ Adjustable Cylinder SUJ100X120-75 with the SAUJ100X120-75
To replace the discontinued SUJ100X120-75, order the SAUJ100X120-75; it is a direct for bore, 120 mm stroke, 75 mm adjust window, 1/2 inch port, and FA/LB mounting. Choose the 75 mm adjust window when you need on-site tuning of the extend stroke from 45 to 120 mm; the external stop sets end position but is not a lock. This non-magnetic SKU cannot take a sensor, but if you switch to a -S SAUJ, note that sensors change from legacy CS1-B/DS1-B to current CMSG/DMSG/EMSG. For strokes of 300 mm or longer, verify side-load limits to prevent rod bearing wear.
Replacement checklist
- ✓ Same bore / stroke → SAUJ100X120-75
- ✓ 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 SUJ100X120-75 FAQ
Yes, the SUJ100X120-75 is discontinued. The direct replacement is the SAUJ100X120-75, which matches the 100 mm bore, 120 mm stroke, 75 mm adjust window, 1/2 inch port, and FA/LB mounting. The SAUJ uses current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B switches.
The external stop screw lets you trim the extend stroke by up to 75 mm on-site, giving a usable extend range of 45 to 120 mm. The stop sets end position and is not a load lock.
Related AirTAC SAU Cylinders
Request a Quote for the SAUJ100X120-75
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