This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is MBLJ40X300-10-S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the MBLJ40X300-10-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 MALJ40X300-10-S
The AirTAC Airtac MALJ40 Adjustable Mini Cylinder MALJ40X300-10-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 290 to 300 mm. This model is discontinued — the drop-in replacement is the MBLJ40X300-10-S.
- BoreØ40 mm
- Stroke300 mm
- Adjust window290–300 mm
- Port sizeG1/4
- Rod threadM12×1.25
- StatusDiscontinued → MBLJ40X300-10-S
About the Airtac MALJ40 Adjustable Mini Cylinder MALJ40X300-10-S
The AirTAC MALJ40X300-10-S is a discontinued 40mm bore, double-acting single-rod mini cylinder with a 300mm stroke and a 10mm rear adjustable stopper. It gives a usable end-position window of 290-300mm. At 0.5 MPa it delivers 628N push and 528N pull force. The drop-in replacement is the MBLJ40X300-10-S, matching the G1/4 port, M12x1.25 rod thread and 128kgf max force.
The rear adjuster is a travel stop, not a lock, so it cannot hold a load without live air. This old MALJ uses threaded covers and a CS1-M/DS1-M magnet, while the MBLJ upgrade features a riveted rolling-packed body and CMSG/DMSG/EMSG sensors. A fixed rubber bumper absorbs end impacts, as there is no adjustable air cushion.
Airtac MALJ40 Adjustable Mini Cylinder MALJ40X300-10-S Technical Specifications
| Model | Airtac MALJ40 Adjustable Mini Cylinder MALJ40X300-10-S |
|---|---|
| Series | MALJ adjustable-stroke mini cylinder (discontinued) |
| Replacement | MBLJ40X300-10-S |
| Bore size | Ø40 mm |
| Stroke | 300 mm |
| Adjustable window | 290 – 300 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 MBLJ40X300-10-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 MBLJ40X300-10-S matches these values.
Model Code: Airtac MALJ40 Adjustable Mini Cylinder MALJ40X300-10-S
| MALJ | Adjustable-stroke aluminum mini cylinder, double acting (discontinued). |
|---|---|
| 40 | Bore size in mm (20/25/32/40). |
| ×300 | Nominal stroke length in mm. |
| -10 | Adjustable amount: trim the end to a 290–300 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 MALJ40X300-10-S Is Used
Printed Circuit Board Stacking
Dial in the 290-300mm reach to press multi-layer PCBs into reflow fixtures without over-traveling and cracking the delicate FR4 substrate.
Sheet Metal Flattener
Use the 628N push force to flatten bent aluminum enclosures, relying on the 10mm stop to fine-tune the final pressing depth.
Carton Sealing Plunge
Drive a folding mandrel into corrugated cartons, trimming the rear stop to compensate for varying cardboard thickness without swapping hardware.
Replacing the Airtac MALJ40 Adjustable Mini Cylinder MALJ40X300-10-S with MBLJ40X300-10-S
To replace the MALJ40X300-10-S, order the MBLJ40X300-10-S. It is a drop-in match for the 40mm bore, 300mm stroke, 10mm adjust code, G1/4 port, PT threads, and FA/LB mounting (there is no back-cover or SDB option). Expect a sensor family change from the old CS1-M/DS1-M to the new CMSG/DMSG/EMSG switches. Remember the adjuster sets end position but does not hold load without air.
For sizing, step down to a 32mm bore for 402N push at 0.5 MPa, or step up to a larger standard body if you need more than 628N. At 300mm stroke, the 16mm carbon-steel rod is susceptible to side-load bending; use rigid guide rails to prevent rod deflection and premature seal wear.
Upgrade checklist
- ✓ Order the MBLJ40X300-10-S (same bore/stroke/adjust)
- ✓ Same 290–300 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 MBLJ40X300-10-S instead of this discontinued model.
Airtac MALJ40 Adjustable Mini Cylinder MALJ40X300-10-S FAQ
Yes, the MALJ40X300-10-S is discontinued. The exact drop-in replacement is the MBLJ40X300-10-S, matching the 40mm bore, 300mm stroke, 10mm adjust code, G1/4 port, and 128kgf max force. You will only need to upgrade your sensors from the old CS1-M/DS1-M to the new CMSG/DMSG/EMSG switches.
The 10mm adjuster creates a usable stroke window of 290-300mm. The full force figures are: 628N push at 0.5 MPa, 528N pull at 0.5 MPa, 880N push at 0.7 MPa, and a maximum of 128kgf at 1.0 MPa. The adjuster is a travel stop, not a lock, and a fixed rubber bumper absorbs end impact.
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The MBLJ40X300-10-S replaces this model 1:1.
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MBLJ replacements usually ship in 3-4 days.
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