This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is MBLJ40X250-10-S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the MBLJ40X250-10-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 MALJ40X250-10-S
The AirTAC Airtac MALJ40 Adjustable Mini Cylinder MALJ40X250-10-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 240 to 250 mm. This model is discontinued — the drop-in replacement is the MBLJ40X250-10-S.
- BoreØ40 mm
- Stroke250 mm
- Adjust window240–250 mm
- Port sizeG1/4
- Rod threadM12×1.25
- StatusDiscontinued → MBLJ40X250-10-S
About the Airtac MALJ40 Adjustable Mini Cylinder MALJ40X250-10-S
The AirTAC MALJ40X250-10-S is a discontinued double-acting mini cylinder with a 40mm bore, 250mm stroke, and a 10mm rear travel stopper. This gives a usable end-position window of 240-250mm. It delivers 628N push and 528N pull at 0.5MPa. The exact drop-in replacement is the MBLJ40X250-10-S, matching bore, stroke, force, and G1/4 port.
The rear adjuster sets the end position but does not hold the load without live air. It uses a fixed rubber bumper, not an adjustable cushion. This MALJ has threaded covers and a -S magnet for CS1-M/DS1-M switches. The MBLJ upgrade uses a riveted rolling-packed body and CMSG/DMSG/EMSG sensors. Mounting is FA or LB only, with no back cover or SDB option.
Airtac MALJ40 Adjustable Mini Cylinder MALJ40X250-10-S Technical Specifications
| Model | Airtac MALJ40 Adjustable Mini Cylinder MALJ40X250-10-S |
|---|---|
| Series | MALJ adjustable-stroke mini cylinder (discontinued) |
| Replacement | MBLJ40X250-10-S |
| Bore size | Ø40 mm |
| Stroke | 250 mm |
| Adjustable window | 240 – 250 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 MBLJ40X250-10-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 MBLJ40X250-10-S matches these values.
Model Code: Airtac MALJ40 Adjustable Mini Cylinder MALJ40X250-10-S
| MALJ | Adjustable-stroke aluminum mini cylinder, double acting (discontinued). |
|---|---|
| 40 | Bore size in mm (20/25/32/40). |
| ×250 | Nominal stroke length in mm. |
| -10 | Adjustable amount: trim the end to a 240–250 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 MALJ40X250-10-S Is Used
PCB Router Z-Axis
Dial the 240-250mm window to set the exact cutting depth on a PCB depaneling router, using the 628N push to drive the spindle carriage.
Connector Insertion Press
Fine-tune the downstroke by 10mm to seat high-pin-count automotive connectors without crushing the housing, relying on the 880N force at 0.7MPa.
Pallet Stopper Gate
Adjust the end position to accommodate varying pallet heights on a conveyor line, using the robust 40mm body as a physical travel stop.
Replacing the Airtac MALJ40 Adjustable Mini Cylinder MALJ40X250-10-S with MBLJ40X250-10-S
To replace this MALJ40X250-10-S, order the drop-in MBLJ40X250-10-S. Confirm the 40mm bore, 250mm stroke, 10mm adjust code, G1/4 port, and M12x1.25 rod thread. The -S magnet changes sensor families: MALJ uses CS1-M/DS1-M, while the MBLJ uses CMSG/DMSG/EMSG. Mounting is FA or LB only. The adjuster is a travel stop, not a lock.
For sizing, stepping down to the 32mm bore drops thrust to 402N push at 0.5MPa. Stepping up is unavailable as 40mm is the largest MALJ bore. At 250mm stroke, prevent rod bending by guiding the load to avoid side-load forces.
Upgrade checklist
- ✓ Order the MBLJ40X250-10-S (same bore/stroke/adjust)
- ✓ Same 240–250 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 MBLJ40X250-10-S instead of this discontinued model.
Airtac MALJ40 Adjustable Mini Cylinder MALJ40X250-10-S FAQ
Yes, the MALJ40X250-10-S is discontinued. The exact drop-in replacement is the MBLJ40X250-10-S, matching the 40mm bore, 250mm stroke, 10mm adjust code, and G1/4 port. The MBLJ upgrades the body to a riveted rolling-packed design and changes the -S magnet switches from CS1-M/DS1-M to CMSG/DMSG/EMSG.
The 10mm adjuster is a travel stop that lets you trim the end position, creating a 240-250mm usable stroke window. It does not hold the load without air. 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.
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Drop-in Upgrade
The MBLJ40X250-10-S replaces this model 1:1.
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MBLJ replacements usually ship in 3-4 days.
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