This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ100X30-20S, 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 SUJ100X30-20S
The AirTAC Airtac SUJ Adjustable Cylinder SUJ100X30-20S is a double-acting profile-type standard cylinder with a Ø100mm bore and 30mm stroke, 1/2" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAUJ100X30-20S, which matches its bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke30 mm
- Port size1/2"
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAUJ100X30-20S
- 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 SUJ100X30-20S
The AirTAC SUJ100X30-20S 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, giving a usable 10-30 mm extend window from the 30 mm nominal maximum. It features a 1/2" port, an M20x1.5 rod thread, and 29 mm adjustable cushions. This SUJ model is discontinued; the direct replacement is the SAUJ100X30-20S, which retains the same compact profile body, bore, force, and FA/LB mounting.
Two key upgrade notes: the SAUJ replacement transitions from the legacy CS1-B/DS1-B switches to current CMSG/DMSG/EMSG sensors, and the SAU line adds a built-in-valve SAUF variant the SU series lacked. Remember the stop screw sets end position only—it is not a load lock; use an external rod lock for held loads.
Airtac SUJ Adjustable Cylinder SUJ100X30-20S Technical Specifications
| Model | Airtac SUJ Adjustable Cylinder SUJ100X30-20S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ100X30-20S |
| Bore size | Ø100 mm |
| Stroke | 30 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 SAUJ100X30-20S 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 SAUJ100X30-20S 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 SUJ100X30-20S
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×30 | 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 SUJ100X30-20S Is Used
Short-Stroke Clamping
Ideal for clamping heavy parts where the exact contact point varies by up to 20 mm, allowing operators to dial in the 10-30 mm extend stroke on-site without swapping cylinders.
Variable Length Stops
Used as an adjustable conveyor stop where product lengths change frequently, trimming the extend stroke by up to 20 mm to accommodate different package sizes on the fly.
Replacing the Airtac SUJ Adjustable Cylinder SUJ100X30-20S with the SAUJ100X30-20S
To replace the discontinued SUJ100X30-20S, order the direct replacement SAUJ100X30-20S, which matches the 100 mm bore, 30 mm stroke, 20 mm adjust window, 1/2" port, and FA/LB mounting. Choose the 20 mm adjust window if your assembly requires precise 10-30 mm extend tuning on-site. Because this unit has the -S magnet, upgrade your position sensing from CS1-B/DS1-B to CMSG/DMSG/EMSG switches. The stop screw defines the end position but does not lock the load; add an external rod lock for pneumatic load-holding. Side-load alignment is less critical at this 30 mm stroke, but always verify rod guidance.
Replacement checklist
- ✓ Same bore / stroke → SAUJ100X30-20S
- ✓ 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 SUJ100X30-20S FAQ
Yes, the SUJ100X30-20S is discontinued. The direct replacement is the SAUJ100X30-20S, which shares the same 100 mm bore, 30 mm stroke, 20 mm adjust window, 1/2" port, and FA/LB mounting. You will only need to upgrade the position sensors from the legacy CS1-B/DS1-B to the current CMSG/DMSG/EMSG switches.
The nominal 30 mm extend stroke can be shortened by up to 20 mm on-site via the external stop screw, yielding a 10-30 mm usable window. The stop sets end position only and is not a load lock.
Related AirTAC SAU Cylinders
Request a Quote for the SAUJ100X30-20S
Send us the quantity and destination. We confirm price, stock and lead time on the SAUJ100X30-20S replacement — usually within 7-8 hours.