This model is discontinued
AirTAC has phased out the MALJ series. You can still order this code here: we ship the direct replacement MBLJ40X150-30, with the same bore, stroke, output force, port and mounting, so it fits the same application. 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 MALJ40X150-30
The AirTAC Airtac MALJ40 Adjustable Mini Cylinder MALJ40X150-30 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 120 to 150 mm. This model is discontinued — the direct replacement is the MBLJ40X150-30.
- BoreØ40 mm
- Stroke150 mm
- Adjust window120–150 mm
- Port sizeG1/4
- Rod threadM12×1.25
- StatusDiscontinued → MBLJ40X150-30
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac MALJ40 Adjustable Mini Cylinder MALJ40X150-30
The AirTAC MALJ40X150-30 is a discontinued 40mm bore, double-acting mini cylinder with a 150mm stroke and a 30mm rear adjustable stop. It gives a usable reach window of 120-150mm. The direct replacement is the MBLJ40X150-30, matching the force, G1/4 port, and mounting.
This SKU has no -S magnet, so it cannot accept a position sensor. The rear adjuster is a travel stop, not a lock; it sets end position but will not hold a load without live air. Upgrading to the MBLJ replaces the threaded covers with a riveted rolling-packed body. End impact is softened by a fixed rubber bumper, as there is no air cushion.
Airtac MALJ40 Adjustable Mini Cylinder MALJ40X150-30 Technical Specifications
| Model | Airtac MALJ40 Adjustable Mini Cylinder MALJ40X150-30 |
|---|---|
| Series | MALJ adjustable-stroke mini cylinder (discontinued) |
| Replacement | MBLJ40X150-30 |
| Bore size | Ø40 mm |
| Stroke | 150 mm |
| Adjustable window | 120 – 150 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 MBLJ40X150-30 carries the same ratings.
Theoretical Output Force (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 528 N | 528 N |
| 0.7 MPa | 739 N | — |
| Max (@1.0 MPa) | 108 kgf | |
MALJ is double-rod: the rear rod that carries the stroke adjuster passes through the rear cover, so both piston faces lose rod area. Push is shown at the annular-area value (conservative), lower than a single-rod MAL push of the same bore. The MBLJ40X150-30 matches these values.
Model Code: Airtac MALJ40 Adjustable Mini Cylinder MALJ40X150-30
| MALJ | Adjustable-stroke aluminum mini cylinder, double acting (discontinued). |
|---|---|
| 40 | Bore size in mm (20/25/32/40). |
| ×150 | Nominal stroke length in mm. |
| -30 | Adjustable amount: trim the end to a 120–150 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 MALJ40X150-30 Is Used
Automated Carton Flap Folder
Fine-tune the 150mm stroke end position on a packaging line flap folder, accommodating varying corrugated box heights without adding external spacers.
Plastic Injection Mold Ejector
Trim the rear travel by 30mm to time the ejection stroke on a plastic injection molding machine, protecting the 16mm rod from over-travel impact.
Replacing the Airtac MALJ40 Adjustable Mini Cylinder MALJ40X150-30 with MBLJ40X150-30
To replace this MALJ40X150-30, order the direct replacement MBLJ40X150-30. Confirm the 40mm bore, 150mm stroke, 30mm adjust code, G1/4 port, PT thread, and FA or LB mounting. There is no back cover or SDB option. Because this SKU lacks the -S magnet, it cannot take a sensor; if you need sensing, the MBLJ equivalent requires CMSG/DMSG/EMSG switches. The adjuster is a stop, not a lock; use an external lock for held loads.
Upgrade checklist
- ✓ Order the MBLJ40X150-30 (same bore/stroke/adjust)
- ✓ Same 120–150 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 MBLJ40X150-30 instead of this discontinued model.
Airtac MALJ40 Adjustable Mini Cylinder MALJ40X150-30 FAQ
Yes, the MALJ40X150-30 is discontinued. The direct replacement is the MBLJ40X150-30, which matches the 40mm bore, 150mm stroke, 30mm adjust code, G1/4 port, and mounting. The MBLJ upgrades the body to a riveted rolling-packed design from the original threaded covers.
The usable stroke window is 120-150mm, set by the 30mm rear adjuster. The adjuster is a travel stop, not a lock.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
Direct Upgrade
The MBLJ40X150-30 replaces this model 1:1.
Fast Dispatch
MBLJ replacements are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
Recommended AirTAC MBLJ Replacements
Request a Quote (Airtac MALJ40 Adjustable Mini Cylinder MALJ40X150-30 → MBLJ40X150-30)
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