This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is MBLJ40X30-20 — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the MBLJ40X30-20 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).
The AirTAC Airtac MALJ40 Adjustable Mini Cylinder MALJ40X30-20 is a double-acting aluminum mini cylinder with a rear adjustable-stroke stopper: you can trim up to 20 mm, giving a usable end-position window from 10 to 30 mm. This model is discontinued — the drop-in replacement is the MBLJ40X30-20.
The AirTAC MALJ40X30-20 is a discontinued 40mm bore, double-acting single-rod mini cylinder with a rear adjustable stroke stopper. By trimming up to 20mm at the rear, it provides a usable end-position window of 10-30mm. It delivers 628N push and 528N pull force at 0.5MPa, and uses a fixed rubber bumper to soften end impact. The exact drop-in replacement is the MBLJ40X30-20, matching the bore, stroke, adjust code, and G1/4 port.
This SKU lacks a -S magnet, so it cannot accept a position sensor. The rear adjuster is a travel stop, not a lock; it sets the end position but will not hold a load without live air. Upgrading to the MBLJ40X30-20 moves you from threaded covers to a riveted rolling-packed body. If you need sensors on the new unit, the switch family changes from the legacy CS1-M/DS1-M to the modern CMSG/DMSG/EMSG series.
| Model | Airtac MALJ40 Adjustable Mini Cylinder MALJ40X30-20 |
|---|---|
| Series | MALJ adjustable-stroke mini cylinder (discontinued) |
| Replacement | MBLJ40X30-20 |
| Bore size | Ø40 mm |
| Stroke | 30 mm |
| Adjustable window | 10 – 30 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 MBLJ40X30-20 carries the same ratings.
| 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 MBLJ40X30-20 matches these values.
| MALJ | Adjustable-stroke aluminum mini cylinder, double acting (discontinued). |
|---|---|
| 40 | Bore size in mm (20/25/32/40). |
| ×30 | Nominal stroke length in mm. |
| -20 | Adjustable amount: trim the end to a 10–30 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.
Dialing the end position down into the 10-30mm window lets a 628N push force set precise routing depth on a PCB depaneling router without adding external physical stops to the head.
The 40mm bore provides 528N pull at 0.5MPa to seat motor stator laminations, while the rear adjuster fine-tunes the pressing depth to compensate for stack height variations.
A capping head uses the 10-30mm stroke window to adjust for different bottle neck heights on a packaging line, relying on the fixed rubber bumper to absorb the 880N @0.7MPa impact.
Replace this MALJ40X30-20 with the drop-in MBLJ40X30-20. Confirm your 40mm bore, 30mm stroke, 20mm adjust code, PT G1/4 port, and M12x1.25 rod thread. Mounting is FA or LB only; there is no back-cover or SDB option. Because this SKU has no -S magnet, it cannot take a sensor; if your machine needs end-of-stroke detection, specify an MBLJ40X30-20S and use a CMSG/DMSG/EMSG switch. Remember the adjuster is a stop, not a lock, so add an external lock for any held load.
To size both ways: stepping down to the 32mm bore yields 402N push at 0.5MPa, while stepping up to the next available bore gives higher force. The 40mm bore gives 628N push and 528N pull at 0.5MPa, peaking at 128kgf at 1.0MPa. This 30mm stroke is short and highly resistant to rod-bending side loads.
Upgrade checklist
Yes, the MALJ40X30-20 is discontinued. The exact drop-in replacement is the MBLJ40X30-20, matching the 40mm bore, 30mm stroke, 20mm adjust code, and G1/4 port. The MBLJ upgrades the construction from threaded covers to a riveted rolling-packed body. Because this specific MALJ SKU lacks a -S magnet, it cannot take a position sensor; if you need detection on the MBLJ, order the -S version which uses CMSG/DMSG/EMSG switches.
The -20 adjust code means you can trim up to 20mm at the rear, creating a usable stroke window of 10-30mm. The adjuster is a travel stop, not a lock, and will not hold a load without live air. The 40mm bore force set is: 628N push and 528N pull at 0.5MPa, 880N push at 0.7MPa, and a maximum of 128kgf at 1.0MPa.
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The MBLJ40X30-20 replaces this model 1:1.
MBLJ replacements usually ship in 3-4 days.
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