This model is discontinued
AirTAC has phased out the MALJ series. You can still order this code here: we ship the direct replacement MBLJ40X150-40, 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 MALJ40X150-40
The AirTAC Airtac MALJ40 Adjustable Mini Cylinder MALJ40X150-40 is a double-acting aluminum mini cylinder with a rear adjustable-stroke stopper: you can trim up to 40 mm, giving a usable end-position window from 110 to 150 mm. This model is discontinued — the direct replacement is the MBLJ40X150-40.
- BoreØ40 mm
- Stroke150 mm
- Adjust window110–150 mm
- Port sizeG1/4
- Rod threadM12×1.25
- StatusDiscontinued → MBLJ40X150-40
- 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 MALJ40X150-40
The AirTAC MALJ40X150-40 is a discontinued double-acting double-rod cylinder with a 40 mm bore and 150 mm stroke. It provides a usable extension window of 110-150 mm via a 40 mm rear travel stopper. The direct replacement is the MBLJ40X150-40, matching the bore, stroke, adjust code, G1/4 port and mounting.
This SKU lacks the -S magnet, so it cannot accept a position sensor. The rear adjuster sets the end position but does not hold the load without live air. The original MALJ uses threaded covers and a CS1-M/DS1-M sensor family, whereas the MBLJ upgrade features a riveted rolling-packed body and CMSG/DMSG/EMSG sensors. Impact is absorbed by a fixed rubber bumper, not an adjustable air cushion.
Airtac MALJ40 Adjustable Mini Cylinder MALJ40X150-40 Technical Specifications
| Model | Airtac MALJ40 Adjustable Mini Cylinder MALJ40X150-40 |
|---|---|
| Series | MALJ adjustable-stroke mini cylinder (discontinued) |
| Replacement | MBLJ40X150-40 |
| Bore size | Ø40 mm |
| Stroke | 150 mm |
| Adjustable window | 110 – 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 MBLJ40X150-40 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 MBLJ40X150-40 matches these values.
Model Code: Airtac MALJ40 Adjustable Mini Cylinder MALJ40X150-40
| MALJ | Adjustable-stroke aluminum mini cylinder, double acting (discontinued). |
|---|---|
| 40 | Bore size in mm (20/25/32/40). |
| ×150 | Nominal stroke length in mm. |
| -40 | Adjustable amount: trim the end to a 110–150 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 MALJ40X150-40 Is Used
Printed Circuit Board Press
Set a precise 120 mm end position to press connectors onto PCBs. The fixed rubber bumper softens the end impact to protect delicate electronic substrates.
Pneumatic Riveting Clamp
Adjust the reach on an assembly line riveting fixture. The 40 mm trim allows operators to accommodate varying panel thicknesses without machining new stop blocks.
Replacing the Airtac MALJ40 Adjustable Mini Cylinder MALJ40X150-40 with MBLJ40X150-40
To replace this MALJ40X150-40, swap to the MBLJ40X150-40. Confirm the 40 mm bore, 150 mm stroke, 40 mm adjust code, G1/4 port, PT thread, and FA or LB mounting. There is no back cover or SDB option. Because this SKU has no -S magnet, you cannot mount a sensor; the MBLJ upgrade requires CMSG/DMSG/EMSG switches if you add one. The adjuster is a travel stop, not a lock.
For this 150 mm stroke, minimize side-load on the 16 mm rod to prevent bending and premature seal wear.
Upgrade checklist
- ✓ Order the MBLJ40X150-40 (same bore/stroke/adjust)
- ✓ Same 110–150 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 MBLJ40X150-40 instead of this discontinued model.
Airtac MALJ40 Adjustable Mini Cylinder MALJ40X150-40 FAQ
Yes, the MALJ40X150-40 is discontinued. The direct replacement is the MBLJ40X150-40, which matches the 40 mm bore, 150 mm stroke, 40 mm adjust code, G1/4 port, and mounting. The MBLJ upgrades the body to a riveted rolling-packed design.
The -40 adjust code lets you trim the rear end position by up to 40 mm, creating a usable stroke window of 110-150 mm. The adjuster is a travel stop, not a lock, and cannot hold a load without air pressure.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
Direct Upgrade
The MBLJ40X150-40 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
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