This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is MBLJ40X300-75 — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the MBLJ40X300-75 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 MALJ40X300-75
The AirTAC Airtac MALJ40 Adjustable Mini Cylinder MALJ40X300-75 is a double-acting aluminum mini cylinder with a rear adjustable-stroke stopper: you can trim up to 75 mm, giving a usable end-position window from 225 to 300 mm. This model is discontinued — the drop-in replacement is the MBLJ40X300-75.
- BoreØ40 mm
- Stroke300 mm
- Adjust window225–300 mm
- Port sizeG1/4
- Rod threadM12×1.25
- StatusDiscontinued → MBLJ40X300-75
About the Airtac MALJ40 Adjustable Mini Cylinder MALJ40X300-75
The AirTAC MALJ40X300-75 is a discontinued double-acting, single-rod mini cylinder with a rear adjustable stroke stopper. It features a 40mm bore, 300mm stroke, and a 75mm adjust code, giving a usable end-position window of 225-300mm. It delivers 628N push and 528N pull force at 0.5MPa. The exact drop-in replacement is the MBLJ40X300-75, matching the bore, stroke, force, G1/4 port, and mounting.
This SKU lacks a magnet (-S), so it cannot accept a position sensor. The 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 impact, but this is not an adjustable cushion. At 300mm, the Ø16mm carbon-steel rod is vulnerable to side-load bending, so rigid guidance is critical. The original threaded covers and CS1-M/DS1-M sensor platform are upgraded in the MBLJ to a riveted rolling-packed body and CMSG/DMSG/EMSG switches.
Airtac MALJ40 Adjustable Mini Cylinder MALJ40X300-75 Technical Specifications
| Model | Airtac MALJ40 Adjustable Mini Cylinder MALJ40X300-75 |
|---|---|
| Series | MALJ adjustable-stroke mini cylinder (discontinued) |
| Replacement | MBLJ40X300-75 |
| Bore size | Ø40 mm |
| Stroke | 300 mm |
| Adjustable window | 225 – 300 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 MBLJ40X300-75 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 MBLJ40X300-75 matches these values.
Model Code: Airtac MALJ40 Adjustable Mini Cylinder MALJ40X300-75
| MALJ | Adjustable-stroke aluminum mini cylinder, double acting (discontinued). |
|---|---|
| 40 | Bore size in mm (20/25/32/40). |
| ×300 | Nominal stroke length in mm. |
| -75 | Adjustable amount: trim the end to a 225–300 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 MALJ40X300-75 Is Used
Printed Circuit Board Handler
Dialing the 225-300mm reach on this 628N cylinder sets exact insertion depth for a PCB edge-guide during automated test fixture loading, preventing connector damage without swapping physical stop blocks.
Carton Flap Folder
The 75mm rear stopper trims the 300mm stroke to time the folding arm perfectly on a packaging line, using the fixed rubber bumper to absorb the 880N impact at 0.7MPa without air cushions.
Sheet Metal Stacking Lifter
Adjusts the lift height under a blanking press to account for varying sheet thicknesses, relying on the 528N pull force to lower the magnet-free rod safely without triggering a false sensor signal.
Replacing the Airtac MALJ40 Adjustable Mini Cylinder MALJ40X300-75 with MBLJ40X300-75
To replace the MALJ40X300-75, order the exact drop-in MBLJ40X300-75. Confirm the 40mm bore, 300mm stroke, 75mm adjust code, G1/4 PT port, M12x1.25 rod thread, and FA/LB mounting (there is no back-cover or SDB option). Because this SKU has no magnet, you lose no sensor wiring during the swap, but if you ever need position detection, the MBLJ requires CMSG/DMSG/EMSG switches. Remember the rear adjuster is a stop, not a lock; use an external lock for held loads. With a 300mm stroke, maintain rigid guidance to prevent rod-bending side loads.
For sizing both ways: stepping down to the 32mm bore yields 402N push at 0.5MPa, while stepping up to the 40mm bore's maximum 500mm stroke gives the same 628N force with a longer reach.
Upgrade checklist
- ✓ Order the MBLJ40X300-75 (same bore/stroke/adjust)
- ✓ Same 225–300 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 MBLJ40X300-75 instead of this discontinued model.
Airtac MALJ40 Adjustable Mini Cylinder MALJ40X300-75 FAQ
Yes, the MALJ40X300-75 is discontinued. The exact drop-in replacement is the MBLJ40X300-75, which matches the 40mm bore, 300mm stroke, 75mm adjust code, 628N push force, G1/4 port, and FA/LB mounting. The MBLJ upgrades the threaded covers to a riveted rolling-packed body. Because this old SKU has no magnet, you have no sensor to rewire, but the new -S versions use CMSG/DMSG/EMSG switches instead of CS1-M/DS1-M.
The 75mm adjust code lets you trim the 300mm stroke, creating a usable end-position window from 225mm to 300mm. The full force set is: 628N push and 528N pull at 0.5MPa, 880N push at 0.7MPa, and a maximum of 128kgf at 1.0MPa. The adjuster is a travel stop, not a lock, and it cannot hold a load without live air.
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The MBLJ40X300-75 replaces this model 1:1.
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