This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAUJ100X300-40 — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAUJ100X300-40 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 SUJ100X300-40
The AirTAC Airtac SUJ Adjustable Cylinder SUJ100X300-40 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 SAUJ100X300-40, which matches its bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke300 mm
- Port size1/2"
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAUJ100X300-40
About the Airtac SUJ Adjustable Cylinder SUJ100X300-40
The AirTAC SUJ100X300-40 is a double-acting single-rod profile cylinder with a 300 mm nominal stroke and a 40 mm external stop screw window, allowing you to trim the extend stroke on-site down to 260 mm. It delivers 3927 N push and 3681 N pull at 0.5 MPa, peaking at 7068 N push at 0.9 MPa. The 1/2" port and extruded aluminum profile barrel make it more compact than an equivalent fixed-stroke unit. This SUJ model is discontinued; the exact drop-in replacement is the SAUJ100X300-40, matching the bore, stroke, force, port, and FA/LB mounting.
For sizing, a safe working load is roughly 2356 N (about 60% of the 0.5 MPa push force), translating to a vertical lift capacity of approximately 200 kg with a 2:1 margin. The stop screw sets the extend 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 this SKU lacks a magnet (-S), it cannot take a magnetic switch. The SAUJ upgrade transitions from legacy CS1-B/DS1-B to current CMSG/DMSG/EMSG sensors.
Airtac SUJ Adjustable Cylinder SUJ100X300-40 Technical Specifications
| Model | Airtac SUJ Adjustable Cylinder SUJ100X300-40 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ100X300-40 |
| 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 SAUJ100X300-40 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 SAUJ100X300-40 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 SUJ100X300-40
| 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 SUJ100X300-40 Is Used
Press Fit Tuning
Adjusting the extend stroke on-site by up to 40 mm allows operators to dial in the exact insertion depth for press-fit pins without swapping the entire cylinder.
Variable Length Diverter
Trimming the extend stroke from 300 mm down to 260 mm accommodates changing package sizes on a conveyor line, ensuring the diverter meets the exact product edge.
Adjustable End Stop
Setting a precise mechanical end position between 260 mm and 300 mm provides a repeatable hard stop for pallet positioning before final clamping.
Replacing the Airtac SUJ Adjustable Cylinder SUJ100X300-40 with the SAUJ100X300-40
To replace the discontinued SUJ100X300-40, order the drop-in SAUJ100X300-40, which preserves the 100 mm bore, 300 mm nominal stroke, 1/2" port, and FA/LB mounting. When sizing both ways, the 80 mm neighbor bore yields 2513 N push at 0.5 MPa, while the 100 mm bore provides 3927 N; choose the 100 mm if you need the 2356 N safe working load. Select the -40 mm adjust window if your process requires tuning the extend stroke between 260 mm and 300 mm on-site. For the SAUJ, specify -S for CMSG/DMSG/EMSG sensor compatibility (the SUJ used CS1-B/DS1-B). At a 300 mm stroke, prevent rod bending by supporting side loads with external guides. The stop screw sets end position and is not a lock; add an external rod lock for load holding.
Replacement checklist
- ✓ Same bore / stroke → SAUJ100X300-40
- ✓ 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 SUJ100X300-40 FAQ
Yes, the SUJ100X300-40 is discontinued. The exact drop-in replacement is the SAUJ100X300-40, which matches the 100 mm bore, 300 mm stroke, 1/2" port, and FA/LB mounting. The SAUJ uses current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B.
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. The external stop screw provides a 40 mm adjust window, allowing you to shorten the 300 mm extend stroke down to 260 mm on-site. The stop sets end position but is not a load lock.
Related AirTAC SAU Cylinders
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