This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is MBLJ40X150-20-S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the MBLJ40X150-20-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 MALJ40X150-20-S
The AirTAC Airtac MALJ40 Adjustable Mini Cylinder MALJ40X150-20-S 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 130 to 150 mm. This model is discontinued — the drop-in replacement is the MBLJ40X150-20-S.
- BoreØ40 mm
- Stroke150 mm
- Adjust window130–150 mm
- Port sizeG1/4
- Rod threadM12×1.25
- StatusDiscontinued → MBLJ40X150-20-S
About the Airtac MALJ40 Adjustable Mini Cylinder MALJ40X150-20-S
The AirTAC MALJ40X150-20-S is a discontinued double-acting, single-rod adjustable-stroke mini cylinder. It provides a usable stroke window of 130-150 mm by trimming up to 20 mm at the rear screw. The 40 mm bore yields 628 N push and 528 N pull at 0.5 MPa. The exact drop-in replacement is the MBLJ40X150-20-S, matching the bore, stroke, adjust code, G1/4 port, and mounting.
This SKU includes a magnet (-S) for CS1-M or DS1-M switches; the MBLJ upgrade moves to CMSG/DMSG/EMSG sensors. The MALJ uses threaded covers, whereas the MBLJ features a riveted rolling-packed body. The rear adjuster acts purely as a travel stop to fine-tune the end position; it does not hold a load without live air pressure. End impact is softened by a fixed rubber bumper, not an adjustable air cushion. Mounting is FA or LB only, with no back cover or SDB option.
Airtac MALJ40 Adjustable Mini Cylinder MALJ40X150-20-S Technical Specifications
| Model | Airtac MALJ40 Adjustable Mini Cylinder MALJ40X150-20-S |
|---|---|
| Series | MALJ adjustable-stroke mini cylinder (discontinued) |
| Replacement | MBLJ40X150-20-S |
| Bore size | Ø40 mm |
| Stroke | 150 mm |
| Adjustable window | 130 – 150 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 MBLJ40X150-20-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 MBLJ40X150-20-S matches these values.
Model Code: Airtac MALJ40 Adjustable Mini Cylinder MALJ40X150-20-S
| MALJ | Adjustable-stroke aluminum mini cylinder, double acting (discontinued). |
|---|---|
| 40 | Bore size in mm (20/25/32/40). |
| ×150 | Nominal stroke length in mm. |
| -20 | Adjustable amount: trim the end to a 130–150 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 MALJ40X150-20-S Is Used
Injection Mold Ejection
Dials the exact 130-150 mm reach to knock out plastic parts without repositioning the entire mold plate, using 628 N of push force at 0.5 MPa.
PCB Depaneling Saw Stop
Sets a precise depth stop for the rear travel on a depaneling router, absorbing end impact with the fixed rubber bumper while tuning the cut depth.
Pallet Case Erector
Adjusts the carton squaring arm end-position on the fly to handle minor case height variations, relying on the 528 N pull force at 0.5 MPa.
Replacing the Airtac MALJ40 Adjustable Mini Cylinder MALJ40X150-20-S with MBLJ40X150-20-S
To replace the MALJ40X150-20-S with the MBLJ40X150-20-S, confirm the 40 mm bore, 150 mm stroke, 20 mm adjust code, PT G1/4 port, and M12x1.25 rod-end thread. Verify your FA or LB mounting (no back cover or SDB) and note the sensor family change from CS1-M/DS1-M to CMSG/DMSG/EMSG. The rear adjuster is a travel stop, not a lock; use an external lock for held loads.
For sizing, stepping down to the 32 mm bore drops force to 402 N push at 0.5 MPa, while stepping up is not available as 40 mm is the largest MALJ bore. At 150 mm stroke, prevent rod bending by ensuring rigid guiding and avoiding side loads.
Upgrade checklist
- ✓ Order the MBLJ40X150-20-S (same bore/stroke/adjust)
- ✓ Same 130–150 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 MBLJ40X150-20-S instead of this discontinued model.
Airtac MALJ40 Adjustable Mini Cylinder MALJ40X150-20-S FAQ
Yes, the MALJ40X150-20-S is discontinued. The exact drop-in replacement is the MBLJ40X150-20-S, which matches the 40 mm bore, 150 mm stroke, 20 mm adjust code, G1/4 port, and FA/LB mounting. The MBLJ upgrades the body to a riveted rolling-packed design and changes the magnet switches from CS1-M/DS1-M to CMSG/DMSG/EMSG.
The 40 mm bore delivers 628 N push and 528 N pull at 0.5 MPa, 880 N push at 0.7 MPa, and a maximum of 128 kgf at 1.0 MPa. The 20 mm adjuster is a rear travel stop that lets you shorten the end position, creating a usable stroke window of 130-150 mm. It does not lock the load without live air pressure.
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The MBLJ40X150-20-S replaces this model 1:1.
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MBLJ replacements usually ship in 3-4 days.
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