This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is MBLJ40X225-20-S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the MBLJ40X225-20-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 MALJ40X225-20-S
The AirTAC Airtac MALJ40 Adjustable Mini Cylinder MALJ40X225-20-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 205 to 225 mm. This model is discontinued — the drop-in replacement is the MBLJ40X225-20-S.
- BoreØ40 mm
- Stroke225 mm
- Adjust window205–225 mm
- Port sizeG1/4
- Rod threadM12×1.25
- StatusDiscontinued → MBLJ40X225-20-S
About the Airtac MALJ40 Adjustable Mini Cylinder MALJ40X225-20-S
The AirTAC MALJ40X225-20-S is a discontinued 40mm bore, double-acting single-rod mini cylinder with a 225mm stroke and a 20mm rear adjustable stopper, giving a usable reach window of 205-225mm. It delivers 628N push and 528N pull force at 0.5MPa. The exact drop-in replacement is the MBLJ40X225-20-S, matching the bore, stroke, G1/4 port, and mounting.
This SKU includes a magnet (-S) for position sensing; the legacy MALJ uses CS1-M/DS1-M switches, while the MBLJ replacement upgrades to CMSG/DMSG/EMSG sensors. The original MALJ features threaded covers and a heterogeneous grease-retaining seal, whereas the MBLJ uses a riveted rolling-packed body. The rear adjuster functions strictly as a travel stop to fine-tune the end position without external bolts; it does not hold load without live air. End impact is softened by a fixed rubber bumper, as there is no adjustable air cushion.
Airtac MALJ40 Adjustable Mini Cylinder MALJ40X225-20-S Technical Specifications
| Model | Airtac MALJ40 Adjustable Mini Cylinder MALJ40X225-20-S |
|---|---|
| Series | MALJ adjustable-stroke mini cylinder (discontinued) |
| Replacement | MBLJ40X225-20-S |
| Bore size | Ø40 mm |
| Stroke | 225 mm |
| Adjustable window | 205 – 225 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 MBLJ40X225-20-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 MBLJ40X225-20-S matches these values.
Model Code: Airtac MALJ40 Adjustable Mini Cylinder MALJ40X225-20-S
| MALJ | Adjustable-stroke aluminum mini cylinder, double acting (discontinued). |
|---|---|
| 40 | Bore size in mm (20/25/32/40). |
| ×225 | Nominal stroke length in mm. |
| -20 | Adjustable amount: trim the end to a 205–225 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 MALJ40X225-20-S Is Used
PCB Router Depth Stop
Dial in the 205-225mm reach window to set exact Z-axis plunge depth on a PCB depaneling router, using the 628N push force to drive the spindle carriage without over-traveling.
Carton Flap Folder
Adjust the end position by up to 20mm to accommodate varying corrugated box heights on a case packing line, relying on the fixed rubber bumper to soften the 880N impact at 0.7MPa.
Bending Press Back-Gauge
Fine-tune the 225mm stroke stopper on a small metal forming press to position sheet metal back-gauges accurately, ensuring the 16mm carbon-steel rod handles the repetitive positioning without drifting.
Replacing the Airtac MALJ40 Adjustable Mini Cylinder MALJ40X225-20-S with MBLJ40X225-20-S
To replace the MALJ40X225-20-S, order the drop-in MBLJ40X225-20-S. Confirm the 40mm bore, 225mm stroke, 20mm adjust code, PT G1/4 port, M12x1.25 rod thread, and FA/LB mounting (there is no back cover or SDB option). Remember the adjuster is a stop, not a lock; add an external lock for held loads. The -S magnet means a sensor family change from CS1-M/DS1-M to CMSG/DMSG/EMSG.
For sizing, you can step down to the 32mm bore (402N push at 0.5MPa) if your load is lighter, or step up if you need more force—though 40mm is the largest MALJ bore available. At 225mm stroke, avoid side-loading to prevent rod-bending; guide the load properly.
Upgrade checklist
- ✓ Order the MBLJ40X225-20-S (same bore/stroke/adjust)
- ✓ Same 205–225 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 MBLJ40X225-20-S instead of this discontinued model.
Airtac MALJ40 Adjustable Mini Cylinder MALJ40X225-20-S FAQ
Yes, the MALJ40X225-20-S is discontinued. The exact drop-in replacement is the MBLJ40X225-20-S, which matches the 40mm bore, 225mm stroke, 20mm adjust code, G1/4 port, and FA/LB mounting. The MBLJ upgrades the body to a riveted rolling-packed design and changes the -S magnet sensors from CS1-M/DS1-M to CMSG/DMSG/EMSG.
The 20mm rear adjuster lets you trim the end position, creating a usable stroke window of 205-225mm. The full force specs at 0.5MPa are 628N push and 528N pull. At 0.7MPa, push is 880N, and the maximum force is 128kgf at 1.0MPa. The adjuster is a travel stop, not a lock.
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Drop-in Upgrade
The MBLJ40X225-20-S replaces this model 1:1.
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MBLJ replacements usually ship in 3-4 days.
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