This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ100X80-50S, 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 SUJ100X80-50S
The AirTAC Airtac SUJ Adjustable Cylinder SUJ100X80-50S is a double-acting profile-type standard cylinder with a Ø100mm bore and 80mm stroke, 1/2" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAUJ100X80-50S, which matches its bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke80 mm
- Port size1/2"
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAUJ100X80-50S
- 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 SUJ100X80-50S
The AirTAC SUJ100X80-50S 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. With an 80 mm nominal stroke, the usable extend range is 30 to 80 mm. The stop screw sets the end position but is not a load lock; a plain cylinder drifts on air loss, so use an external rod lock for held loads. It features a 25 mm rod, M20x1.5 rod thread, 29 mm adjustable cushions, and a 1/2" port.
This SUJ model is discontinued; the direct replacement is the SAUJ100X80-50S, retaining the same profile body, bore, stroke, force, 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 model. The compact profile barrel is shorter than an ISO 15552 cylinder of the same bore.
Airtac SUJ Adjustable Cylinder SUJ100X80-50S Technical Specifications
| Model | Airtac SUJ Adjustable Cylinder SUJ100X80-50S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ100X80-50S |
| Bore size | Ø100 mm |
| Stroke | 80 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 SAUJ100X80-50S 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 SAUJ100X80-50S 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 SUJ100X80-50S
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×80 | 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 SUJ100X80-50S Is Used
Variable Depth Forming
Adjusts the extend stroke on press fixtures to accommodate different material thicknesses without changing the entire cylinder setup.
Adjustable Transfer Stops
Tunes the stop position on demand to handle varying package sizes on a single line, maximizing layout flexibility.
Custom Carton Sealing
Trims the extend stroke on-site to match changing flap heights, ensuring precise sealing pressure for varied carton profiles.
Replacing the Airtac SUJ Adjustable Cylinder SUJ100X80-50S with the SAUJ100X80-50S
To replace the discontinued SUJ100X80-50S, order the direct replacement SAUJ100X80-50S, which matches the 100 mm bore, 80 mm stroke, 1/2" port, and FA/LB mounting. Choose the -50 mm adjust window when you need on-site extend tuning between 30 and 80 mm; this stop sets end position and is not a lock. Select the SAUJ with -S and CMSG/DMSG/EMSG sensors to replace the legacy CS1-B/DS1-B switches. For strokes of 300 mm or longer, verify side-load limits to prevent rod distortion.
Replacement checklist
- ✓ Same bore / stroke → SAUJ100X80-50S
- ✓ 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 SUJ100X80-50S FAQ
Yes, the AirTAC SUJ100X80-50S is discontinued. The direct replacement is the SAUJ100X80-50S, which shares the same 100 mm bore, 80 mm stroke, 1/2" port, and FA/LB mounting. The SAUJ also uses current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B switches.
The external stop screw provides a 50 mm adjust window, allowing you to shorten the 80 mm nominal extend stroke down to 30 mm on-site.
Related AirTAC SAU Cylinders
Request a Quote for the SAUJ100X80-50S
Send us the quantity and destination. We confirm price, stock and lead time on the SAUJ100X80-50S replacement — usually within 7-8 hours.