This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAUJ100X300-40S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAUJ100X300-40S 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 SUJ100X300-40S
The AirTAC Airtac SUJ Adjustable Cylinder SUJ100X300-40S is a double-acting profile-type standard cylinder with a Ø100mm bore and 300mm stroke, 1/2" air ports and adjustable end cushioning. This model is discontinued — the drop-in replacement is the SAUJ100X300-40S, which matches its bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke300 mm
- Port size1/2"
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAUJ100X300-40S
About the Airtac SUJ Adjustable Cylinder SUJ100X300-40S
The AirTAC SUJ100X300-40S is a double-acting single-rod profile cylinder with an external stop screw that lets you trim the extend stroke by up to 40 mm on-site, yielding a usable 260-300 mm extend window from the 300 mm nominal maximum. This discontinued adjustable-stroke unit 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, an M20x1.5 rod thread, and 29 mm adjustable air cushions. The stop screw sets the end position but is not a load lock; a plain cylinder drifts on air loss, so use an external rod lock for held loads.
Because the SUJ is discontinued, the exact drop-in replacement is the SAUJ100X300-40S, retaining the same bore, stroke, force, 1/2" port, and FA/LB mounting. For sizing, a safe working load is roughly 2356 N (about 60% of the 0.5 MPa push), translating to a 200 kg vertical lift with a 2:1 margin. At 300 mm stroke, external guides are recommended to prevent rod bending. The SAUJ upgrade uses current CMSG/DMSG/EMSG sensors instead of this model's legacy CS1-B/DS1-B switches.
Airtac SUJ Adjustable Cylinder SUJ100X300-40S Technical Specifications
| Model | Airtac SUJ Adjustable Cylinder SUJ100X300-40S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ100X300-40S |
| Bore size | Ø100 mm |
| Stroke | 300 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 SAUJ100X300-40S 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 SAUJ100X300-40S 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 SUJ100X300-40S
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×300 | 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 SUJ100X300-40S Is Used
Variable Pitch Forming
Adjusts the extend stroke on-site to alter material bend depth without re machining the entire tooling fixture.
Variable Depth Carton Sealing
Trims the extend stroke by up to 40 mm to accommodate fluctuating box heights on a shared packaging line.
Adjustable Mechanical Stops
Sets precise end positions for varying pallet heights, allowing rapid physical stroke tuning during product changeovers.
Replacing the Airtac SUJ Adjustable Cylinder SUJ100X300-40S with the SAUJ100X300-40S
To replace the discontinued SUJ100X300-40S, specify the drop-in SAUJ100X300-40S, which matches the 100 mm bore, 300 mm stroke, 1/2" port, and FA/LB mounting. When sizing both ways, the neighboring 80 mm bore yields 2513 N push at 0.5 MPa, while this 100 mm bore provides 3927 N push at 0.5 MPa (7068 N at 0.9 MPa). Choose the 40 mm adjust window if your fixture needs field tuning between 260 and 300 mm. Because this is an -S model, swap the legacy CS1-B/DS1-B switches for current CMSG/DMSG/EMSG sensors on the SAUJ. For the 300 mm stroke, add external guides to manage side-load and rod-bending forces. The stop screw sets end position only; add an external rod lock for load holding.
Replacement checklist
- ✓ Same bore / stroke → SAUJ100X300-40S
- ✓ 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 SUJ100X300-40S FAQ
Yes, the SUJ100X300-40S is discontinued. The exact drop-in replacement is the SAUJ100X300-40S, which matches the 100 mm bore, 300 mm stroke, 40 mm adjust window, 1/2" port, and FA/LB mounting. The SAUJ uses current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B switches.
The double-acting single-rod cylinder delivers 3927 N push and 3681 N pull at 0.5 MPa, 5497 N push at 0.7 MPa, and 7068 N push at 0.9 MPa, with a theoretical max of 801 kgf at 1.0 MPa. The external stop screw provides a 40 mm adjust window, allowing the extend stroke to be shortened on-site from the 300 mm maximum down to 260 mm. The stop sets end position and is not a load lock.
Related AirTAC SAU Cylinders
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