This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAUJ100X275-20S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAUJ100X275-20S 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 SUJ100X275-20S
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 drop-in 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
About the Airtac SUJ Adjustable Cylinder SUJ100X275-20S
The AirTAC SUJ100X275-20S is a double-acting single-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. The 100 mm bore delivers 3927 N push and 3681 N pull at 0.5 MPa, peaking at 7068 N push at 0.9 MPa. It features a 1/2" port, a 25 mm rod, and 29 mm adjustable cushions. This SUJ model is discontinued; the exact drop-in replacement is the SAUJ100X275-20S, sharing the same bore, stroke, force, port, and FA/LB mounting.
For sizing, the safe working load is roughly 2356 N (about 60% of the 0.5 MPa push force), translating to a 200 kg vertical lift with a 2:1 margin. 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 — a true drop-in on output. 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 drop-in SAUJ100X275-20S, which matches the 100 mm bore, 275 mm max stroke, 20 mm adjust window, 1/2" port, and FA/LB mounting. When sizing both ways, the neighboring 80 mm bore provides 2513 N push at 0.5 MPa, while this 100 mm bore provides 3927 N at 0.5 MPa or 7068 N at 0.9 MPa. 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 exact drop-in 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 100 mm bore single-rod design provides 3927 N push and 3681 N pull at 0.5 MPa, 5497 N push at 0.7 MPa, 7068 N push at 0.9 MPa, and a theoretical max of 801 kgf at 1.0 MPa. 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
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