This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAUJ100X300-30 — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAUJ100X300-30 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 SUJ100X300-30
The AirTAC Airtac SUJ Adjustable Cylinder SUJ100X300-30 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 SAUJ100X300-30, which matches its bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke300 mm
- Port size1/2"
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAUJ100X300-30
About the Airtac SUJ Adjustable Cylinder SUJ100X300-30
The AirTAC SUJ100X300-30 is a double-acting single-rod profile cylinder with an adjustable stroke. An external stop screw lets you trim the extend stroke by up to 30 mm on-site, giving a usable extend range of 270-300 mm from the 300 mm nominal maximum. This 100 mm bore delivers 3927 N push and 3681 N pull at 0.5 MPa, rising to 7068 N push at 0.9 MPa. The 1/2" port and M20x1.5 rod end handle high flow, while the 29 mm adjustable air cushions decelerate heavy loads smoothly.
This SUJ model is discontinued; the exact drop-in replacement is the SAUJ100X300-30, matching the bore, stroke, force, port, and FA/LB mounting. The SAUJ upgrades to current CMSG/DMSG/EMSG sensors, whereas this legacy unit used CS1-B/DS1-B switches. Note this non-magnetic SKU cannot take a switch. For sizing, the safe working load is roughly 2356 N (60% of the 0.5 MPa push), equating to a 200 kg vertical lift with a 2:1 margin. The stop screw sets end position only; it is not a load lock, so use an external rod lock for held loads.
Airtac SUJ Adjustable Cylinder SUJ100X300-30 Technical Specifications
| Model | Airtac SUJ Adjustable Cylinder SUJ100X300-30 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ100X300-30 |
| 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 SAUJ100X300-30 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 SAUJ100X300-30 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 SUJ100X300-30
| 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 SUJ100X300-30 Is Used
Press Fit Tuning
Adjusting the extend stroke on-site by up to 30 mm to dial in exact press-fit depths for varying assembly parts without re machining hard stops.
Variable Length Diverter
Trimming the actuator extend position in 270-300 mm increments to deflect different package sizes on a high-speed conveyor line.
Pallet Positioning Stop
Fine-tuning the end-stop position for mixed pallet heights, using the external screw to set the precise 270-300 mm extend endpoint.
Replacing the Airtac SUJ Adjustable Cylinder SUJ100X300-30 with the SAUJ100X300-30
To replace the discontinued SUJ100X300-30, specify the SAUJ100X300-30 drop-in: it preserves the 100 mm bore, 300 mm stroke, 30 mm adjust window, 1/2" port, and FA/LB mounting. If re-sizing, the neighbouring 80 mm bore yields 2513 N push at 0.5 MPa, while the 100 mm bore provides 3927 N. Choose the 30 mm adjust window when you need precise 270-300 mm extend tuning on-site. Because this is a non-magnetic SKU, it cannot accept a sensor; the SAUJ replacement with a -S suffix uses CMSG/DMSG/EMSG sensors (this SUJ used CS1-B/DS1-B). For the 300 mm stroke, verify side-load limits and use external guides to prevent rod bending.
Replacement checklist
- ✓ Same bore / stroke → SAUJ100X300-30
- ✓ 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 SUJ100X300-30 FAQ
Yes, the SUJ100X300-30 is discontinued. The exact drop-in replacement is the SAUJ100X300-30, which matches the 100 mm bore, 300 mm stroke, 30 mm adjust window, 1/2" port, and FA/LB mounting. The SAUJ also uses current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B switches.
The 100 mm bore provides 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. The external stop screw window is 30 mm, allowing you to trim the 300 mm nominal extend stroke down to 270 mm on-site. The stop sets end position and is not a load lock.
Related AirTAC SAU Cylinders
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