This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ100X275-20S, 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 SUJ100X275-20S
The AirTAC Airtac SUJ Adjustable Cylinder SUJ100X275-20S 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 SAUJ100X275-20S, which matches its bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke275 mm
- Port size1/2"
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAUJ100X275-20S
- 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 SUJ100X275-20S
The AirTAC SUJ100X275-20S 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 255-275 mm stroke from the 275 mm nominal maximum. It features a 1/2" port, a 25 mm rod, and 29 mm adjustable cushions. This SUJ model is discontinued; the direct replacement is the SAUJ100X275-20S, sharing the same bore, stroke, force, port, and FA/LB mounting.
The stop screw sets the end position but is not a load lock; use an external rod lock for held loads. The SAUJ upgrade retains the compact profile body—shorter than an ISO 15552 cylinder of the same bore—and switches from legacy CS1-B/DS1-B sensors to current CMSG/DMSG/EMSG switches.
Airtac SUJ Adjustable Cylinder SUJ100X275-20S Technical Specifications
| Model | Airtac SUJ Adjustable Cylinder SUJ100X275-20S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ100X275-20S |
| 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 SAUJ100X275-20S 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 SAUJ100X275-20S 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 SUJ100X275-20S
| 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 SUJ100X275-20S Is Used
Variable Stroke Pressing
Allows operators to dial in the exact 255-275 mm extend position for pressing bearings or pins where material thickness varies slightly per batch.
Adjustable Diverter Arm
Tunes the extend stop on-site to redirect different package sizes on a line without repositioning the cylinder's FA or LB mounts.
End-of-Stroke Cushioning Test
Provides a mechanism to incrementally shorten the extend stroke to test and optimize the 29 mm adjustable cushion under varying loads.
Replacing the Airtac SUJ Adjustable Cylinder SUJ100X275-20S with the SAUJ100X275-20S
To replace the discontinued SUJ100X275-20S, order the direct replacement SAUJ100X275-20S, which matches the 100 mm bore, 275 mm max stroke, 20 mm adjust window, 1/2" port, and FA/LB mounting. Choose the 20 mm adjust window if you need field tuning of the extend stroke; for fixed positions, a standard SAU cylinder suffices. Because this model includes the -S magnet, you must upgrade from legacy CS1-B/DS1-B switches to current CMSG/DMSG/EMSG sensors. For strokes of 300 mm or longer, verify side-load limits to prevent rod binding.
Replacement checklist
- ✓ Same bore / stroke → SAUJ100X275-20S
- ✓ 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 SUJ100X275-20S FAQ
Yes, the SUJ100X275-20S is discontinued. The direct replacement is the SAUJ100X275-20S. It shares the same 100 mm bore, 275 mm max stroke, 20 mm adjust window, 1/2" port, and FA/LB mounting. You only need to upgrade the -S magnet sensors from legacy CS1-B/DS1-B to current CMSG/DMSG/EMSG switches.
The external stop screw allows you to trim the extend stroke by up to 20 mm on-site, giving a usable stroke range of 255-275 mm from the 275 mm nominal maximum.
Related AirTAC SAU Cylinders
Request a Quote for the SAUJ100X275-20S
Send us the quantity and destination. We confirm price, stock and lead time on the SAUJ100X275-20S replacement — usually within 7-8 hours.