This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is MBLJ40X50-50-S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the MBLJ40X50-50-S 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 MALJ40X50-50-S
The AirTAC Airtac MALJ40 Adjustable Mini Cylinder MALJ40X50-50-S 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 0 to 50 mm. This model is discontinued — the drop-in replacement is the MBLJ40X50-50-S.
- BoreØ40 mm
- Stroke50 mm
- Adjust window0–50 mm
- Port sizeG1/4
- Rod threadM12×1.25
- StatusDiscontinued → MBLJ40X50-50-S
About the Airtac MALJ40 Adjustable Mini Cylinder MALJ40X50-50-S
The AirTAC MALJ40X50-50-S is a discontinued double-acting mini cylinder with a 50mm rear adjustable stroke stopper, yielding a usable travel window of 0-50mm. It delivers 628N push and 528N pull at 0.5MPa. The exact drop-in replacement is the MBLJ40X50-50-S, matching the 40mm bore, G1/4 port, and 128kgf max force.
This -S SKU uses a CS1-M/DS1-M magnet sensor, which upgrades to CMSG/DMSG/EMSG on the MBLJ. The MALJ features threaded covers, whereas the MBLJ uses a riveted rolling-packed body. The adjuster is a travel stop, not a lock; it sets the end position but cannot hold a load without live air. End impact is softened by a fixed rubber bumper, not an adjustable cushion.
Airtac MALJ40 Adjustable Mini Cylinder MALJ40X50-50-S Technical Specifications
| Model | Airtac MALJ40 Adjustable Mini Cylinder MALJ40X50-50-S |
|---|---|
| Series | MALJ adjustable-stroke mini cylinder (discontinued) |
| Replacement | MBLJ40X50-50-S |
| Bore size | Ø40 mm |
| Stroke | 50 mm |
| Adjustable window | 0 – 50 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 MBLJ40X50-50-S 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 MBLJ40X50-50-S matches these values.
Model Code: Airtac MALJ40 Adjustable Mini Cylinder MALJ40X50-50-S
| MALJ | Adjustable-stroke aluminum mini cylinder, double acting (discontinued). |
|---|---|
| 40 | Bore size in mm (20/25/32/40). |
| ×50 | Nominal stroke length in mm. |
| -50 | Adjustable amount: trim the end to a 0–50 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 MALJ40X50-50-S Is Used
Press-Fit Pin Insertion
Dial the 0-50mm travel stop to seat dowel pins precisely in an aluminum fixture without bottoming out the 628N force.
Depth Stop for PCB Router
Set a repeatable 25mm end position on a PCB depaneling router, using the fixed rubber bumper to absorb the 880N high-speed impact.
Variable Stroke Forming Press
Adjust the stroke down to 10mm for light metal bending tasks, leveraging the 128kgf max force to shape brackets without external stops.
Replacing the Airtac MALJ40 Adjustable Mini Cylinder MALJ40X50-50-S with MBLJ40X50-50-S
To replace the MALJ40X50-50-S with the MBLJ40X50-50-S, confirm the 40mm bore, 50mm stroke, 50mm adjust code, and G1/4 port. Mounting remains FA or LB (no back cover or SDB). The -S magnet changes from CS1-M/DS1-M to CMSG/DMSG/EMSG sensors. The rear adjuster is a travel stop, not a lock; use an external lock for held loads.
For sizing both ways: stepping down, the 32mm bore gives 402N push at 0.5MPa; stepping up is not available as 40mm is the largest MALJ bore. This 628N push cylinder is ideal for high-force tasks.
Upgrade checklist
- ✓ Order the MBLJ40X50-50-S (same bore/stroke/adjust)
- ✓ Same 0–50 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 MBLJ40X50-50-S instead of this discontinued model.
Airtac MALJ40 Adjustable Mini Cylinder MALJ40X50-50-S FAQ
Yes, the MALJ40X50-50-S is discontinued. The exact drop-in replacement is the MBLJ40X50-50-S, matching the 40mm bore, 50mm stroke, 50mm adjust code, and G1/4 port. The MBLJ upgrades the body to a riveted rolling-packed design and the -S magnet to CMSG/DMSG/EMSG sensors.
The MALJ40X50-50-S delivers 628N push and 528N pull at 0.5MPa, 880N push at 0.7MPa, and a max of 128kgf at 1.0MPa. The 50mm adjuster is a travel stop that creates a 0-50mm usable window; it does not hold the load without air.
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Drop-in Upgrade
The MBLJ40X50-50-S replaces this model 1:1.
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MBLJ replacements usually ship in 3-4 days.
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Most inquiries answered within 7-8 hours.
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