This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is MBLJ40X50-30 — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the MBLJ40X50-30 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 MALJ40X50-30
The AirTAC Airtac MALJ40 Adjustable Mini Cylinder MALJ40X50-30 is a double-acting aluminum mini cylinder with a rear adjustable-stroke stopper: you can trim up to 30 mm, giving a usable end-position window from 20 to 50 mm. This model is discontinued — the drop-in replacement is the MBLJ40X50-30.
- BoreØ40 mm
- Stroke50 mm
- Adjust window20–50 mm
- Port sizeG1/4
- Rod threadM12×1.25
- StatusDiscontinued → MBLJ40X50-30
About the Airtac MALJ40 Adjustable Mini Cylinder MALJ40X50-30
The AirTAC MALJ40X50-30 is a discontinued double-acting single-rod mini cylinder with a 40mm bore and 50mm stroke. The -30 adjust code lets you trim the rear end position by up to 30mm, creating a usable stroke window of 20-50mm. It delivers 628N push and 528N pull force at 0.5MPa. The exact drop-in replacement is the MBLJ40X50-30, matching the bore, stroke, adjust code, and G1/4 port.
This SKU lacks a -S magnet, so it cannot accept a position sensor. The rear adjuster is a travel stop, not a lock; it sets the end position but will not hold a load without live air. The fixed rubber bumper softens end impact. During the upgrade, the threaded covers change to a riveted rolling-packed body, and the older CS1-M/DS1-M sensor family is replaced by CMSG/DMSG/EMSG on the MBLJ.
Airtac MALJ40 Adjustable Mini Cylinder MALJ40X50-30 Technical Specifications
| Model | Airtac MALJ40 Adjustable Mini Cylinder MALJ40X50-30 |
|---|---|
| Series | MALJ adjustable-stroke mini cylinder (discontinued) |
| Replacement | MBLJ40X50-30 |
| Bore size | Ø40 mm |
| Stroke | 50 mm |
| Adjustable window | 20 – 50 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 MBLJ40X50-30 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 MBLJ40X50-30 matches these values.
Model Code: Airtac MALJ40 Adjustable Mini Cylinder MALJ40X50-30
| MALJ | Adjustable-stroke aluminum mini cylinder, double acting (discontinued). |
|---|---|
| 40 | Bore size in mm (20/25/32/40). |
| ×50 | Nominal stroke length in mm. |
| -30 | Adjustable amount: trim the end to a 20–50 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 MALJ40X50-30 Is Used
PCB Depaneling Saw Stop
Dial the 20-50mm window to set the exact cut depth on a depaneling router, using the 628N push force to hold the saw carriage firmly against the rear stop.
Automated Valve Seat Press
Fine-tune the insertion depth of a valve seat into an aluminum manifold head, relying on the 30mm rear adjustment to dial in the perfect seating position without new hardware.
Packaging Flap Tucker
Adjust the tucking arm reach on a carton sealing machine by trimming the stroke, using the fixed rubber bumper to absorb the 528N pull impact at the end of each cycle.
Replacing the Airtac MALJ40 Adjustable Mini Cylinder MALJ40X50-30 with MBLJ40X50-30
To replace this MALJ40X50-30, order the exact drop-in MBLJ40X50-30. Confirm the 40mm bore, 50mm stroke, 30mm adjust code, PT G1/4 port, and M12x1.25 rod thread. Mounting is Basic, FA, or LB only; there is no back cover or SDB option. Because this SKU has no magnet, you lose sensor capability unless you switch to an MBLJ-S model using CMSG/DMSG/EMSG switches. The adjuster is a stop, not a lock; use an external lock for held loads.
For sizing, the 40mm bore is the largest in this mini series, so you can only step down to a 32mm bore (402N push at 0.5MPa) if your application needs less force. If you need more force, you must move to a different cylinder family entirely. With a 50mm stroke, side-load risk is low, but ensure the rod-end thread aligns with your clevis to prevent rod bending.
Upgrade checklist
- ✓ Order the MBLJ40X50-30 (same bore/stroke/adjust)
- ✓ Same 20–50 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 MBLJ40X50-30 instead of this discontinued model.
Airtac MALJ40 Adjustable Mini Cylinder MALJ40X50-30 FAQ
Yes, the MALJ40X50-30 is discontinued. The exact drop-in replacement is the MBLJ40X50-30, which matches the 40mm bore, 50mm stroke, 30mm adjust code, and G1/4 port. The MBLJ upgrades the construction with a riveted rolling-packed body instead of threaded covers.
The 40mm bore provides 628N push and 528N pull at 0.5MPa, 880N push at 0.7MPa, and a maximum of 128kgf at 1.0MPa. The -30 adjust code allows you to trim up to 30mm at the rear, creating a usable stroke window of 20-50mm. The adjuster is a travel stop, not a lock.
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The MBLJ40X50-30 replaces this model 1:1.
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