This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is MBLJ40X225-50 — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the MBLJ40X225-50 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 MALJ40X225-50
The AirTAC Airtac MALJ40 Adjustable Mini Cylinder MALJ40X225-50 is a double-acting aluminum mini cylinder with a rear adjustable-stroke stopper: you can trim up to 50 mm, giving a usable end-position window from 175 to 225 mm. This model is discontinued — the drop-in replacement is the MBLJ40X225-50.
- BoreØ40 mm
- Stroke225 mm
- Adjust window175–225 mm
- Port sizeG1/4
- Rod threadM12×1.25
- StatusDiscontinued → MBLJ40X225-50
About the Airtac MALJ40 Adjustable Mini Cylinder MALJ40X225-50
The AirTAC MALJ40X225-50 is a discontinued double-acting, adjustable-stroke mini cylinder. The drop-in replacement is the MBLJ40X225-50, which matches the 40mm bore, 225mm stroke, G1/4 port, and 628N push force at 0.5 MPa. The -50 adjuster code lets you trim the rear travel up to 50mm, creating a usable end-position window from 175 to 225mm.
This bore delivers 628N push and 528N pull at 0.5 MPa. The rear adjuster is a travel stop, not a lock; it sets the end position but will not hold a load without live air. The fixed rubber bumper softens end impacts, but this is not an adjustable cushion. This SKU lacks a magnet (-S), so it cannot accept a position sensor. The original MALJ uses threaded covers and CS1-M/DS1-M switches, while the MBLJ upgrade features a riveted rolling-packed body and CMSG/DMSG/EMSG sensors.
Airtac MALJ40 Adjustable Mini Cylinder MALJ40X225-50 Technical Specifications
| Model | Airtac MALJ40 Adjustable Mini Cylinder MALJ40X225-50 |
|---|---|
| Series | MALJ adjustable-stroke mini cylinder (discontinued) |
| Replacement | MBLJ40X225-50 |
| Bore size | Ø40 mm |
| Stroke | 225 mm |
| Adjustable window | 175 – 225 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 MBLJ40X225-50 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 MBLJ40X225-50 matches these values.
Model Code: Airtac MALJ40 Adjustable Mini Cylinder MALJ40X225-50
| MALJ | Adjustable-stroke aluminum mini cylinder, double acting (discontinued). |
|---|---|
| 40 | Bore size in mm (20/25/32/40). |
| ×225 | Nominal stroke length in mm. |
| -50 | Adjustable amount: trim the end to a 175–225 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 MALJ40X225-50 Is Used
PCB Router Z-Aaxis Depth
Dial the 175-225mm window to set exact Z-axis plunge depth on a PCB depaneling router, using the 628N force to drive the cutting bit without bottoming out.
Thermoforming Press
Adjust the rear stop to fine-tune the mold closure gap on a small thermoforming press, relying on the fixed rubber bumper to soften the 880N high-pressure impact.
Carton Flap Folder
Trim the travel on a packaging carton flap folder to accommodate varying box heights, using the G1/4 port for rapid 40mm bore actuation.
Replacing the Airtac MALJ40 Adjustable Mini Cylinder MALJ40X225-50 with MBLJ40X225-50
To replace the MALJ40X225-50, order the MBLJ40X225-50. Confirm the 40mm bore, 225mm stroke, 50mm adjust code, G1/4 port, PT thread, and FA/LB mounting (there is no back cover or SDB option). Because this SKU has no -S magnet, it cannot take a sensor; if you need sensing on the new unit, specify the -S option to use CMSG/DMSG/EMSG switches instead of the old CS1-M/DS1-M. The adjuster is a stop, not a lock, so add an external lock for held loads. If sizing this 40mm bore (628N push at 0.5 MPa), stepping down to the 32mm bore yields 402N push, while stepping up to the 50mm bore offers 981N push. For a 225mm stroke, use a rigid guide to prevent rod-bending side loads.
Upgrade checklist
- ✓ Order the MBLJ40X225-50 (same bore/stroke/adjust)
- ✓ Same 175–225 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 MBLJ40X225-50 instead of this discontinued model.
Airtac MALJ40 Adjustable Mini Cylinder MALJ40X225-50 FAQ
Yes, the MALJ40X225-50 is discontinued. The exact drop-in replacement is the MBLJ40X225-50, which matches the 40mm bore, 225mm stroke, 50mm adjust code, and G1/4 port. The MBLJ upgrade uses a riveted rolling-packed body instead of threaded covers.
The -50 adjust code allows you to trim up to 50mm of rear travel, giving a usable stroke window of 175-225mm. The 40mm bore delivers 628N push and 528N pull at 0.5 MPa, 880N 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 MBLJ40X225-50 replaces this model 1:1.
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