This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is MBLJ40X125-10-S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the MBLJ40X125-10-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 MALJ40X125-10-S
The AirTAC Airtac MALJ40 Adjustable Mini Cylinder MALJ40X125-10-S is a double-acting aluminum mini cylinder with a rear adjustable-stroke stopper: you can trim up to 10 mm, giving a usable end-position window from 115 to 125 mm. This model is discontinued — the drop-in replacement is the MBLJ40X125-10-S.
- BoreØ40 mm
- Stroke125 mm
- Adjust window115–125 mm
- Port sizeG1/4
- Rod threadM12×1.25
- StatusDiscontinued → MBLJ40X125-10-S
About the Airtac MALJ40 Adjustable Mini Cylinder MALJ40X125-10-S
The AirTAC MALJ40X125-10-S is a discontinued double-acting single-rod cylinder with a 40 mm bore and 125 mm stroke. It provides a usable stroke window of 115-125 mm via a 10 mm rear adjuster. It delivers 628 N push and 528 N pull at 0.5 MPa. The exact drop-in replacement is the MBLJ40X125-10-S.
This unit features a fixed rubber bumper and a PT G1/4 port. The rear adjuster is a travel stop, not a lock; it cannot hold a load without live air. Upgrading to the MBLJ changes the body from threaded covers to a riveted rolling-packed design, and the -S magnet sensor family shifts from CS1-M/DS1-M to CMSG/DMSG/EMSG.
Airtac MALJ40 Adjustable Mini Cylinder MALJ40X125-10-S Technical Specifications
| Model | Airtac MALJ40 Adjustable Mini Cylinder MALJ40X125-10-S |
|---|---|
| Series | MALJ adjustable-stroke mini cylinder (discontinued) |
| Replacement | MBLJ40X125-10-S |
| Bore size | Ø40 mm |
| Stroke | 125 mm |
| Adjustable window | 115 – 125 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 MBLJ40X125-10-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 MBLJ40X125-10-S matches these values.
Model Code: Airtac MALJ40 Adjustable Mini Cylinder MALJ40X125-10-S
| MALJ | Adjustable-stroke aluminum mini cylinder, double acting (discontinued). |
|---|---|
| 40 | Bore size in mm (20/25/32/40). |
| ×125 | Nominal stroke length in mm. |
| -10 | Adjustable amount: trim the end to a 115–125 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 MALJ40X125-10-S Is Used
PCB Router Depth Stop
Dials the final 115-125 mm reach on a PCB depaneling router. The 628 N push force holds the cutting head firmly against the stopper while the fixed rubber bumper absorbs the transition impact.
Automotive Brake Caliper Press
Fine-tunes the 10 mm retraction window when seating brake pads. The G1/4 port feeds the 40 mm bore rapidly, while the rear stopper lets technicians set the exact pad clearance without external shims.
Aluminum Extrusion Notching
Sets the precise bottom position for a notching punch. The 528 N pull force retracts the tool cleanly, and the travel stop ensures the notch depth remains consistent across production batches.
Replacing the Airtac MALJ40 Adjustable Mini Cylinder MALJ40X125-10-S with MBLJ40X125-10-S
To replace this MALJ40X125-10-S, install the drop-in MBLJ40X125-10-S. Confirm the 40 mm bore, 125 mm stroke, 10 mm adjust code, PT G1/4 port, M12x1.25 rod thread, and FA/LB mounting (there is no back cover or SDB option). The -S magnet requires switching from CS1-M/DS1-M to CMSG/DMSG/EMSG sensors. The adjuster sets the end position but does not lock the load.
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 125 mm stroke, side-load is minimal, but ensure the rod-end thread is aligned to prevent rod bending.
Upgrade checklist
- ✓ Order the MBLJ40X125-10-S (same bore/stroke/adjust)
- ✓ Same 115–125 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 MBLJ40X125-10-S instead of this discontinued model.
Airtac MALJ40 Adjustable Mini Cylinder MALJ40X125-10-S FAQ
Yes, the MALJ40X125-10-S is discontinued. The exact drop-in replacement is the MBLJ40X125-10-S, which matches the 40 mm bore, 125 mm stroke, 10 mm adjust code, and PT G1/4 port. You will need to upgrade your sensors from the old CS1-M/DS1-M switches to the CMSG/DMSG/EMSG family.
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 10 mm rear adjuster creates a usable stroke window of 115-125 mm. Remember the adjuster is a travel stop, not a lock; it will not hold a load without live air.
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The MBLJ40X125-10-S replaces this model 1:1.
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