This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is MBLJ40X120-40-S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the MBLJ40X120-40-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 MALJ40X120-40-S
The AirTAC Airtac MALJ40 Adjustable Mini Cylinder MALJ40X120-40-S is a double-acting aluminum mini cylinder with a rear adjustable-stroke stopper: you can trim up to 40 mm, giving a usable end-position window from 80 to 120 mm. This model is discontinued — the drop-in replacement is the MBLJ40X120-40-S.
- BoreØ40 mm
- Stroke120 mm
- Adjust window80–120 mm
- Port sizeG1/4
- Rod threadM12×1.25
- StatusDiscontinued → MBLJ40X120-40-S
About the Airtac MALJ40 Adjustable Mini Cylinder MALJ40X120-40-S
The AirTAC MALJ40X120-40-S is a discontinued double-acting single-rod cylinder with a 40mm bore and 120mm stroke. The -40 adjust code lets you trim up to 40mm at the rear, creating a usable stroke window of 80-120mm. It delivers 628N push and 528N pull at 0.5MPa. The exact drop-in replacement is the MBLJ40X120-40-S, matching the bore, force, G1/4 port, and mounting.
This -S variant uses a CS1-M or DS1-M magnet sensor, whereas the MBLJ upgrade uses CMSG, DMSG or EMSG switches. The original MAL features threaded covers, while the MBLJ replacement uses a riveted rolling-packed body. Impact is absorbed by a fixed rubber bumper, not an adjustable air cushion. The rear screw is a travel stop to fine-tune reach, not a mechanical lock to hold loads without live air.
Airtac MALJ40 Adjustable Mini Cylinder MALJ40X120-40-S Technical Specifications
| Model | Airtac MALJ40 Adjustable Mini Cylinder MALJ40X120-40-S |
|---|---|
| Series | MALJ adjustable-stroke mini cylinder (discontinued) |
| Replacement | MBLJ40X120-40-S |
| Bore size | Ø40 mm |
| Stroke | 120 mm |
| Adjustable window | 80 – 120 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 MBLJ40X120-40-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 MBLJ40X120-40-S matches these values.
Model Code: Airtac MALJ40 Adjustable Mini Cylinder MALJ40X120-40-S
| MALJ | Adjustable-stroke aluminum mini cylinder, double acting (discontinued). |
|---|---|
| 40 | Bore size in mm (20/25/32/40). |
| ×120 | Nominal stroke length in mm. |
| -40 | Adjustable amount: trim the end to a 80–120 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 MALJ40X120-40-S Is Used
Injection Mold Ejection
Dial the 80-120mm stroke window to eject plastic parts precisely from varying mold depths, using the 628N push force to break the part free without over-traveling.
PCB Depaneling Saw
Set the exact end position for a depaneling blade to cut through circuit boards, relying on the fixed rubber bumper to soften the repeated end-stop impact.
Automotive Bracket Bending
Form sheet metal brackets by adjusting the rear stopper to control the bend angle, leveraging the 528N pull force for consistent retraction.
Replacing the Airtac MALJ40 Adjustable Mini Cylinder MALJ40X120-40-S with MBLJ40X120-40-S
To replace this MALJ40X120-40-S, order the MBLJ40X120-40-S. Confirm the 40mm bore, 120mm stroke, -40 adjust code, PT G1/4 port, and M12x1.25 rod thread. Mounting is FA or LB only, with no back cover or SDB option. The -S magnet requires a sensor family change from CS1-M/DS1-M to CMSG/DMSG/EMSG. The adjuster sets the end position but does not hold load without air.
For sizing flexibility, stepping down to the 32mm bore drops the force to 402N push at 0.5MPa. Stepping up is not possible as 40mm is the largest MALJ bore. At 120mm stroke, side-load risks are low, but ensure the rod-end thread is aligned to prevent rod bending.
Upgrade checklist
- ✓ Order the MBLJ40X120-40-S (same bore/stroke/adjust)
- ✓ Same 80–120 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 MBLJ40X120-40-S instead of this discontinued model.
Airtac MALJ40 Adjustable Mini Cylinder MALJ40X120-40-S FAQ
Yes, the MALJ40X120-40-S is discontinued. The exact drop-in replacement is the MBLJ40X120-40-S, which matches the 40mm bore, 120mm stroke, -40 adjust code, and G1/4 port. The MBLJ uses a riveted rolling-packed body instead of threaded covers, and requires CMSG, DMSG or EMSG sensors instead of the CS1-M/DS1-M switches.
The force output is 628N push and 528N pull at 0.5MPa, 880N push at 0.7MPa, and a maximum of 128kgf at 1.0MPa. The -40 adjust code means you can trim up to 40mm at the rear, creating a usable stroke window of 80-120mm. The rear adjuster is a travel stop to set the end position, not a mechanical lock to hold loads without air.
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Drop-in Upgrade
The MBLJ40X120-40-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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