This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAUJ100X275-30S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAUJ100X275-30S in place of this model. 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 drop-in 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
About the Airtac SUJ Adjustable Cylinder SUJ100X275-30S
The AirTAC SUJ100X275-30S is a double-acting single-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. This 100 mm bore delivers substantial thrust—3927 N push and 3681 N pull at 0.5 MPa, scaling to 7068 N at 0.9 MPa. 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 drop-in 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. For sizing, a safe working load is roughly 2356 N (60% of the 0.5 MPa push), allowing a vertical lift of about 200 kg with a 2:1 margin. 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 — a true drop-in on output. 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 drop-in SAUJ100X275-30S, ensuring you migrate your position sensing from legacy CS1-B/DS1-B switches to the current CMSG/DMSG/EMSG series. When sizing both ways, the neighboring 80 mm bore yields 2513 N push at 0.5 MPa, while the 100 mm bore offers 3927 N at 0.5 MPa or 5497 N at 0.7 MPa. 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 exact drop-in 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 100 mm bore provides 3927 N push and 3681 N pull at 0.5 MPa, 5497 N push at 0.7 MPa, 7068 N at 0.9 MPa, and a theoretical max of 801 kgf at 1.0 MPa. 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
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