This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ100X275-30S, 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 SUJ100X275-30S
The AirTAC Airtac SUJ Adjustable Cylinder SUJ100X275-30S 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 SAUJ100X275-30S, which matches its bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke275 mm
- Port size1/2"
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAUJ100X275-30S
- 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 SUJ100X275-30S
The AirTAC SUJ100X275-30S is a double-acting double-rod profile cylinder with an external stop screw that lets you trim the extend stroke by up to 30 mm on-site, yielding a usable 245-275 mm stroke window from the 275 mm nominal maximum. The 1/2" port and Ø25 mm rod provide the structural capacity for heavy tooling, while the adjustable cushion ensures smooth deceleration.
This SUJ model is discontinued and the direct replacement is the SAUJ100X275-30S, which retains the exact bore, stroke, force, port, and FA/LB mounting. The -S suffix denotes a piston magnet for position sensing; this legacy unit used CS1-B/DS1-B switches, whereas the SAUJ upgrade uses current CMSG/DMSG/EMSG sensors. The stop screw sets the end position but is not a load lock; external air is required to hold position.
Airtac SUJ Adjustable Cylinder SUJ100X275-30S Technical Specifications
| Model | Airtac SUJ Adjustable Cylinder SUJ100X275-30S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ100X275-30S |
| 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 SAUJ100X275-30S 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 SAUJ100X275-30S 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 SUJ100X275-30S
| 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 SUJ100X275-30S Is Used
Press Fit Tooling
Trimming the extend stroke by up to 30 mm on-site allows operators to dial in the exact seating depth for bearings or pins without machining custom spacers.
Variable Length Diverter
Adjusting the stop screw lets a single diverter arm accommodate different package sizes on the fly, tuning the extend stroke within the 245-275 mm window.
Pallet Positioning Stops
Field-tuning the endpoint is critical when pallet dimensions vary, letting the hard stop define the precise 245-275 mm actuation limit for indexing.
Replacing the Airtac SUJ Adjustable Cylinder SUJ100X275-30S with the SAUJ100X275-30S
To replace the discontinued SUJ100X275-30S, order the direct replacement SAUJ100X275-30S, ensuring you migrate your position sensing from legacy CS1-B/DS1-B switches to the current CMSG/DMSG/EMSG series. Choose the -30 mm adjust window if your fixture requires precise field tuning of the extend endpoint within a 245-275 mm range. The SC-series FA and LB mounts are supported. Because the 275 mm stroke exceeds 300 mm when combined with the cylinder body, verify side-load alignment to prevent rod bearing wear. Remember that the stop screw merely sets end position and does not function as a load lock; incorporate an external rod lock for held loads.
Replacement checklist
- ✓ Same bore / stroke → SAUJ100X275-30S
- ✓ 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 SUJ100X275-30S FAQ
Yes, the SUJ100X275-30S is discontinued. The direct replacement is the SAUJ100X275-30S, which matches the 100 mm bore, 275 mm stroke, 30 mm adjust window, 1/2" port, and FA/LB mounting. You must upgrade your position sensors from the legacy CS1-B/DS1-B to the current CMSG/DMSG/EMSG series.
The external stop screw provides a 30 mm adjust window, shortening the extend stroke from the 275 mm maximum down to 245 mm. This stop sets end position and is not a load lock.
Related AirTAC SAU Cylinders
Request a Quote for the SAUJ100X275-30S
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