This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is MBLJ40X250-10 — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the MBLJ40X250-10 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
The AirTAC Airtac MALJ40 Adjustable Mini Cylinder MALJ40X250-10 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.
- BoreØ40 mm
- Stroke250 mm
- Adjust window240–250 mm
- Port sizeG1/4
- Rod threadM12×1.25
- StatusDiscontinued → MBLJ40X250-10
About the Airtac MALJ40 Adjustable Mini Cylinder MALJ40X250-10
The AirTAC MALJ40X250-10 is a discontinued double-acting, single-rod adjustable-stroke mini cylinder. A rear stopper screw lets you trim up to 10 mm of travel, yielding a usable 240-250 mm end-position window without external stops. The 40 mm bore generates 628 N push and 528 N pull at 0.5 MPa. The exact drop-in replacement is the MBLJ40X250-10, matching the G1/4 port, M12x1.25 rod thread, and force ratings.
This SKU has no -S magnet, so it cannot accept a position sensor. The adjuster sets the end position but does not hold load without live air. Upgrading to the MBLJ40X250-10 moves you from threaded covers to a riveted rolling-packed body. If you previously used sensors, the MBLJ requires CMSG/DMSG/EMSG switches instead of the older CS1-M/DS1-M family.
Airtac MALJ40 Adjustable Mini Cylinder MALJ40X250-10 Technical Specifications
| Model | Airtac MALJ40 Adjustable Mini Cylinder MALJ40X250-10 |
|---|---|
| Series | MALJ adjustable-stroke mini cylinder (discontinued) |
| Replacement | MBLJ40X250-10 |
| 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 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 matches these values.
Model Code: Airtac MALJ40 Adjustable Mini Cylinder MALJ40X250-10
| 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 Is Used
CNC Pallet Changer Stop
Dials the exact 240-250 mm end position to register heavy machine-tool pallets, using the 628 N push force to seat the locator without knocking the fixture loose.
Stamping Press Ejector
Trims the return stroke 10 mm to prevent a formed sheet metal part from catching the upper die, relying on the fixed rubber bumper to soften the 880 N @0.7 MPa impact.
Injection Mold Platen Pin
Fine-tunes the reach of an ejection pin on a 250 mm cycle, letting toolmakers set the rest position without machining new hard stops or spacer blocks.
Replacing the Airtac MALJ40 Adjustable Mini Cylinder MALJ40X250-10 with MBLJ40X250-10
To replace this MALJ40X250-10, order the MBLJ40X250-10. Confirm the 40 mm bore, 250 mm stroke, 10 mm adjust code, G1/4 port, PT thread, and FA/LB mounting. There is no back-cover or SDB option. Because this SKU lacks the -S magnet, it cannot take a sensor; if your new cycle needs detection, specify an MBLJ with the -S suffix and use CMSG/DMSG/EMSG switches. The rear adjuster is a travel stop, not a lock—add an external lock for held loads. At 250 mm stroke, guard against side-load rod-bending. To size either way: step down to the 32 mm bore (402 N push @0.5 MPa) for lighter fixtures, or step up to the largest 40 mm bore standard stroke (500 mm) if you need deeper reach.
Upgrade checklist
- ✓ Order the MBLJ40X250-10 (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 instead of this discontinued model.
Airtac MALJ40 Adjustable Mini Cylinder MALJ40X250-10 FAQ
Yes, the MALJ40X250-10 is discontinued. The exact drop-in replacement is the MBLJ40X250-10, which matches the 40 mm bore, 250 mm stroke, 10 mm adjust code, G1/4 port, and force. The MBLJ upgrades the body from threaded covers to a riveted rolling-packed design.
The 40 mm bore provides 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 adjust code gives a usable 240-250 mm stroke window. This SKU has no -S magnet and cannot take a sensor. The adjuster is a travel stop, not a lock.
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The MBLJ40X250-10 replaces this model 1:1.
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