This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ100X275-50S, 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 SUJ100X275-50S
The AirTAC Airtac SUJ Adjustable Cylinder SUJ100X275-50S is a double-acting profile-type standard cylinder with a Ø100mm bore and 275mm stroke, 1/2" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAUJ100X275-50S, which matches its bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke275 mm
- Port size1/2"
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAUJ100X275-50S
- 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 SUJ100X275-50S
The AirTAC SUJ100X275-50S 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, yielding a usable 225-275 mm stroke. It features a 1/2" port, M20x1.5 rod thread, and 29 mm adjustable cushions. The SUJ line is discontinued; the direct replacement is the SAUJ100X275-50S, retaining the same body, force, and SC-series FA/LB mounting.
The stop screw sets end position but is not a load lock; use an external rod lock for held loads. The SAUJ upgrade switches legacy CS1-B/DS1-B sensors to current CMSG/DMSG/EMSG switches. The compact profile barrel is shorter than standard cylinders of the same bore, making it ideal when SAUJ beats a fixed SAU plus external stop.
Airtac SUJ Adjustable Cylinder SUJ100X275-50S Technical Specifications
| Model | Airtac SUJ Adjustable Cylinder SUJ100X275-50S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ100X275-50S |
| Bore size | Ø100 mm |
| Stroke | 275 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 SAUJ100X275-50S 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 SAUJ100X275-50S 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 SUJ100X275-50S
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×275 | 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 SUJ100X275-50S Is Used
Variable Pitch Indexing
Allows on-site extend stroke tuning up to 50 mm to accommodate varying product lengths without changing the entire actuator setup.
Adjustable Diverter Gates
Provides field stroke trimming for diverters handling mixed package sizes, ensuring precise routing without repositioning hardware.
Custom Press Stations
Enables operators to dial in the exact 225-275 mm extend position for different material thicknesses on manual assembly lines.
Replacing the Airtac SUJ Adjustable Cylinder SUJ100X275-50S with the SAUJ100X275-50S
To replace the discontinued SUJ100X275-50S, order the direct replacement SAUJ100X275-50S. It matches the 100 mm bore, 275 mm stroke, 50 mm adjust window, 1/2" port, and FA/LB mounting. Choose the 50 mm adjust window if you need to trim the extend stroke by up to 50 mm on-site. The -S suffix means a piston magnet is present; you must upgrade from legacy CS1-B/DS1-B sensors to current CMSG/DMSG/EMSG switches. For strokes of 300 mm or longer, verify side-load limits to prevent excessive rod wear.
Replacement checklist
- ✓ Same bore / stroke → SAUJ100X275-50S
- ✓ 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 SUJ100X275-50S FAQ
Yes, the SUJ100X275-50S is discontinued. The direct replacement is the SAUJ100X275-50S, which shares the same 100 mm bore, 275 mm stroke, 50 mm adjust window, 1/2" port, and FA/LB mounting. You only need to upgrade the sensors from legacy CS1-B/DS1-B to current CMSG/DMSG/EMSG switches.
The external stop screw window is 50 mm, allowing you to shorten the extend stroke from the 275 mm maximum down to 225 mm on-site. The stop sets end position and is not a load lock.
Related AirTAC SAU Cylinders
Request a Quote for the SAUJ100X275-50S
Send us the quantity and destination. We confirm price, stock and lead time on the SAUJ100X275-50S replacement — usually within 7-8 hours.