This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is MBLJ40X500-50 — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the MBLJ40X500-50 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 MALJ40X500-50
The AirTAC Airtac MALJ40 Adjustable Mini Cylinder MALJ40X500-50 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 450 to 500 mm. This model is discontinued — the drop-in replacement is the MBLJ40X500-50.
- BoreØ40 mm
- Stroke500 mm
- Adjust window450–500 mm
- Port sizeG1/4
- Rod threadM12×1.25
- StatusDiscontinued → MBLJ40X500-50
About the Airtac MALJ40 Adjustable Mini Cylinder MALJ40X500-50
The AirTAC MALJ40X500-50 is a discontinued double-acting mini cylinder with a 40mm bore and 500mm stroke. The rear screw stopper lets you trim the end position by up to 50mm, creating a usable 450-500mm window without external stops. It delivers 628N push and 528N pull at 0.5MPa. The exact drop-in replacement is the MBLJ40X500-50, matching the bore, stroke, force, G1/4 port, and mounting.
This SKU lacks a magnet (-S) and cannot take a position sensor. The adjuster sets travel but does not hold load without live air. The fixed rubber bumper softens impact but is not an adjustable cushion. Upgrading to the MBLJ40X500-50 changes the sensor family to CMSG/DMSG/EMSG and swaps the threaded covers for a riveted rolling-packed body.
Airtac MALJ40 Adjustable Mini Cylinder MALJ40X500-50 Technical Specifications
| Model | Airtac MALJ40 Adjustable Mini Cylinder MALJ40X500-50 |
|---|---|
| Series | MALJ adjustable-stroke mini cylinder (discontinued) |
| Replacement | MBLJ40X500-50 |
| Bore size | Ø40 mm |
| Stroke | 500 mm |
| Adjustable window | 450 – 500 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 MBLJ40X500-50 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 MBLJ40X500-50 matches these values.
Model Code: Airtac MALJ40 Adjustable Mini Cylinder MALJ40X500-50
| MALJ | Adjustable-stroke aluminum mini cylinder, double acting (discontinued). |
|---|---|
| 40 | Bore size in mm (20/25/32/40). |
| ×500 | Nominal stroke length in mm. |
| -50 | Adjustable amount: trim the end to a 450–500 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 MALJ40X500-50 Is Used
Long-reach deflasher
Dials the 450-500mm stroke to press plastic parts into a deflash station, using the 628N push force to cleanly shear overflow without over-traveling the fixture.
Carton flap folder
Adjusts the 50mm end-position window to fold varying corrugated box depths on a packaging line, relying on the fixed rubber bumper to absorb the 880N impact at 0.7MPa.
Pallet depth stopper
Trims the rear stopper to act as a depth gate for wooden pallets on a conveyor, using the G1/4 port for rapid actuation while preventing mechanical lock-up.
Replacing the Airtac MALJ40 Adjustable Mini Cylinder MALJ40X500-50 with MBLJ40X500-50
To replace this MALJ40X500-50 with the MBLJ40X500-50, confirm the 40mm bore, 500mm stroke, 50mm adjust code, G1/4 PT port, and FA/LB mounting (no back cover or SDB). Because this SKU has no -S magnet, it cannot accept a sensor; the MBLJ upgrade uses CMSG/DMSG/EMSG switches if needed. The adjuster is a travel stop, not a lock.
For sizing, stepping down to the 32mm bore drops force to 402N push at 0.5MPa. Stepping up is not possible as 40mm is the largest MALJ bore. At 500mm stroke, rod side-load risks bending the 16mm rod; ensure guide alignment to prevent premature seal wear.
Upgrade checklist
- ✓ Order the MBLJ40X500-50 (same bore/stroke/adjust)
- ✓ Same 450–500 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 MBLJ40X500-50 instead of this discontinued model.
Airtac MALJ40 Adjustable Mini Cylinder MALJ40X500-50 FAQ
Yes, the MALJ40X500-50 is discontinued. The exact drop-in replacement is the MBLJ40X500-50, matching the 40mm bore, 500mm stroke, 50mm adjust code, G1/4 port, and force. The MBLJ upgrades the threaded covers to a riveted rolling-packed body.
The force ratings are 628N push and 528N pull at 0.5MPa, 880N push at 0.7MPa, and a maximum of 128kgf at 1.0MPa. The 50mm adjuster is a travel stop that shortens the stroke, creating a 450-500mm usable window. It does not hold the load without live air, and this no-magnet SKU cannot take a sensor.
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The MBLJ40X500-50 replaces this model 1:1.
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