This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is MBLJ40X25-30 — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the MBLJ40X25-30 in place of this model. The MBLJ replacement upgrades to a riveted rolling-packed body and CMSG / DMSG / EMSG sensors (the MAL used CS1-M / DS1-M).
Airtac MALJ40 Adjustable Mini Cylinder MALJ40X25-30
The AirTAC Airtac MALJ40 Adjustable Mini Cylinder MALJ40X25-30 is a double-acting aluminum mini cylinder with a rear adjustable-stroke stopper: you can trim up to 30 mm, giving a usable end-position window from -5 to 25 mm. This model is discontinued — the drop-in replacement is the MBLJ40X25-30.
- BoreØ40 mm
- Stroke25 mm
- Adjust window-5–25 mm
- Port sizeG1/4
- Rod threadM12×1.25
- StatusDiscontinued → MBLJ40X25-30
About the Airtac MALJ40 Adjustable Mini Cylinder MALJ40X25-30
The AirTAC MALJ40X25-30 is a discontinued double-acting mini cylinder with a 40 mm bore and 25 mm stroke. It features a rear adjustable stopper allowing you to trim up to 30 mm, creating a usable stroke window from 0 mm to 25 mm. It delivers 628 N push and 528 N pull force at 0.5 MPa. The exact drop-in replacement is the MBLJ40X25-30, matching the bore, stroke, port, and force.
This SKU lacks a magnet (-S), so it cannot accept a position sensor. The fixed rubber bumper softens end impact, but the adjuster is a travel stop, not a lock. The original MALJ uses threaded covers and PT tapered port threads, while the MBLJ upgrade features a riveted rolling-packed body for greater durability. Operating pressure is 0.1-1.0 MPa.
Airtac MALJ40 Adjustable Mini Cylinder MALJ40X25-30 Technical Specifications
| Model | Airtac MALJ40 Adjustable Mini Cylinder MALJ40X25-30 |
|---|---|
| Series | MALJ adjustable-stroke mini cylinder (discontinued) |
| Replacement | MBLJ40X25-30 |
| Bore size | Ø40 mm |
| Stroke | 25 mm |
| Adjustable window | -5 – 25 mm |
| Acting type | Double acting, adjustable stroke |
| Port size | G1/4 |
| Rod thread | M12×1.25 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.1 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Fixed rubber bumper |
| Max standard stroke | Up to 500 mm |
The rear adjuster is a travel stop, not a lock — it sets the end position but does not hold the load without live air. No back-cover code and no SDB on adjustable-stroke. The MBLJ40X25-30 carries the same ratings.
Theoretical Output Force (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 kgf | |
Single-rod force, same as a standard MAL of this bore. The MBLJ40X25-30 matches these values.
Model Code: Airtac MALJ40 Adjustable Mini Cylinder MALJ40X25-30
| MALJ | Adjustable-stroke aluminum mini cylinder, double acting (discontinued). |
|---|---|
| 40 | Bore size in mm (20/25/32/40). |
| ×25 | Nominal stroke length in mm. |
| -30 | Adjustable amount: trim the end to a -5–25 mm window. |
| S | Optional magnet for a CS1-M / DS1-M sensor (MBLJ uses CMSG/DMSG/EMSG). |
Replacement: MALJ → MBLJ. No back-cover (CA/U/CM) and no SDB. Mounting: FA / LB.
Where the Airtac MALJ40 Adjustable Mini Cylinder MALJ40X25-30 Is Used
PCB Router Z-Axis Stop
Dial in the exact 0-25 mm descent on a printed circuit board routing spindle. The 628 N push force holds the cutting depth firmly against the rubber bumper without needing a separate external stop.
Sheet Metal Forming Depth
Control the bottom dead center on a small pneumatic press brake. The 30 mm adjust window lets you tune bend depth for different material thicknesses, while the 16 mm rod handles the 880 N peak force at 0.7 MPa.
Packaging Flap Folder
Fine-tune the folding stroke on a carton erector. The rear stopper lets you shift the end position to match varying box dimensions, ensuring precise mechanical reach without swapping hardware.
Replacing the Airtac MALJ40 Adjustable Mini Cylinder MALJ40X25-30 with MBLJ40X25-30
To replace the MALJ40X25-30, order the MBLJ40X25-30. Confirm the 40 mm bore, 25 mm stroke, 30 mm adjust code, G1/4 port, and PT thread. Mounting is Basic, FA, or LB only (no back cover or SDB). Since this SKU has no magnet, it cannot take a sensor; if you need sensing on the new unit, add -S to switch to the CMSG/DMSG/EMSG sensor family. Remember the adjuster sets end position but will not hold a load without live air.
For sizing flexibility, stepping down to the 32 mm bore yields 402 N push at 0.5 MPa, while stepping up is not available as 40 mm is the largest MALJ bore. The 40 mm bore uniquely uses a G1/4 port and a 16 mm hard-chrome rod. With a 25 mm stroke, side-load risk is minimal.
Upgrade checklist
- ✓ Order the MBLJ40X25-30 (same bore/stroke/adjust)
- ✓ Same -5–25 mm adjustable window
- ✓ Adjuster is a stop, not a lock
- ✓ No back cover / SDB — plan an FA/LB mount
- ✓ Sensor: swap CS1-M/DS1-M → CMSG/DMSG/EMSG
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.1 – 1.0 MPa operating pressure.
- check The rear adjuster sets the end position — it is not a load lock.
- check No back-cover / SDB on adjustable-stroke — use FA / LB.
- check Front/rear covers are threaded — not for field disassembly.
- check For new builds, specify the MBLJ40X25-30 instead of this discontinued model.
Airtac MALJ40 Adjustable Mini Cylinder MALJ40X25-30 FAQ
Yes, the MALJ40X25-30 is discontinued. The exact drop-in replacement is the MBLJ40X25-30, matching the 40 mm bore, 25 mm stroke, 30 mm adjust code, G1/4 port, and force. The MBLJ upgrades the body to a riveted rolling-packed design from the original threaded covers.
The 30 mm adjust code lets you trim the 25 mm stroke, giving a usable window from 0 mm to 25 mm. The full force set: 628 N push and 528 N pull at 0.5 MPa, 880 N push at 0.7 MPa, and a maximum of 128 kgf at 1.0 MPa. The adjuster is a travel stop, not a lock.
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The MBLJ40X25-30 replaces this model 1:1.
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MBLJ replacements usually ship in 3-4 days.
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