This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ100X75-20S, 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 SUJ100X75-20S
The AirTAC Airtac SUJ Adjustable Cylinder SUJ100X75-20S is a double-acting profile-type standard cylinder with a Ø100mm bore and 75mm stroke, 1/2" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAUJ100X75-20S, which matches its bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke75 mm
- Port size1/2"
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAUJ100X75-20S
- 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 SUJ100X75-20S
The AirTAC SUJ100X75-20S is a double-acting double-rod profile cylinder with an external stop screw that lets you trim the extend stroke by up to 20 mm on-site, yielding a usable 55 to 75 mm extend window from the 75 mm nominal maximum. This discontinued unit carries a built-in piston magnet for legacy CS1-B/DS1-B switches.
This SUJ model is discontinued and replaced directly by the SAUJ100X75-20S, which matches the bore, stroke, 20 mm adjust window, force, port, and SC-series FA/LB mounting. The SAUJ upgrade shifts switch sensing to current CMSG/DMSG/EMSG sensors and offers the SAUF built-in-valve variant. The external stop screw sets the end position but is not a load lock; plain cylinders drift on air loss, so use an external rod lock or pilot-operated check valve for held loads.
Airtac SUJ Adjustable Cylinder SUJ100X75-20S Technical Specifications
| Model | Airtac SUJ Adjustable Cylinder SUJ100X75-20S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ100X75-20S |
| Bore size | Ø100 mm |
| Stroke | 75 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 SAUJ100X75-20S 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 SAUJ100X75-20S 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 SUJ100X75-20S
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×75 | 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 SUJ100X75-20S Is Used
Press Fit Calibration
Trimming the extend stroke by up to 20 mm on-site allows precise positioning of press pins without machining custom spacers.
Variable Length Diverter
Field-tuning the 75 mm extend end position adapts a diverter gate to changing package sizes on the fly.
Adjustable End Stop
Setting a hard external stop within the 55 to 75 mm window provides a repeatable mechanical end position for heavy pallet lifts.
Replacing the Airtac SUJ Adjustable Cylinder SUJ100X75-20S with the SAUJ100X75-20S
To replace the discontinued SUJ100X75-20S, specify the direct replacement SAUJ100X75-20S, retaining the 75 mm nominal stroke, 20 mm adjust window, 1/2 inch port, and FA/LB mounting. Choose the 20 mm adjust window if your mechanism requires field tuning of the extend end position within a 55 to 75 mm range. Because this unit has the -S magnet, migrate from legacy CS1-B/DS1-B switches to current CMSG/DMSG/EMSG sensors on the SAUJ. For strokes of 300 mm or longer, verify side-load constraints to prevent rod bearing wear.
Replacement checklist
- ✓ Same bore / stroke → SAUJ100X75-20S
- ✓ 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 SUJ100X75-20S FAQ
Yes, the SUJ100X75-20S is discontinued. The direct replacement is the SAUJ100X75-20S, which matches the 100 mm bore, 75 mm stroke, 20 mm adjust window, 1/2 inch port, and FA/LB mounting. You must upgrade the legacy CS1-B/DS1-B switches to current CMSG/DMSG/EMSG sensors.
The external stop screw window is 20 mm, allowing you to shorten the 75 mm nominal extend stroke down to 55 mm on-site. The stop sets end position and is not a load lock.
Related AirTAC SAU Cylinders
Request a Quote for the SAUJ100X75-20S
Send us the quantity and destination. We confirm price, stock and lead time on the SAUJ100X75-20S replacement — usually within 7-8 hours.