This model is discontinued
AirTAC has phased out the MALJ series. You can still order this code here: we ship the direct replacement MBLJ25X150-40, 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 MALJ25 Adjustable Mini Air Cylinder MALJ25X150-40
The AirTAC MALJ25 Adjustable Mini Air Cylinder MALJ25X150-40 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 MBLJ25X150-40.
- BoreØ25 mm
- Stroke150 mm
- Adjust window110–150 mm
- Port sizeG1/8
- Rod threadM10×1.25
- StatusDiscontinued → MBLJ25X150-40
- 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 MALJ25 Adjustable Mini Air Cylinder MALJ25X150-40
The AirTAC MALJ25X150-40 is a discontinued double-acting, double-rod mini cylinder with a 40 mm rear adjustable stroke stopper. It provides a usable travel window of 110-150 mm. You must upgrade to the direct replacement MBLJ25X150-40, which matches the bore, stroke, adjuster, force, and G1/8 port.
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 fixed rubber bumper softens end impact, and the threaded covers on the MALJ differ from the riveted rolling-packed body on the MBLJ upgrade.
Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X150-40 Technical Specifications
| Model | Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X150-40 |
|---|---|
| Series | MALJ adjustable-stroke mini cylinder (discontinued) |
| Replacement | MBLJ25X150-40 |
| Bore size | Ø25 mm |
| Stroke | 150 mm |
| Adjustable window | 110 – 150 mm |
| Acting type | Double acting, adjustable stroke |
| Port size | G1/8 |
| Rod thread | M10×1.25 |
| 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 300 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 MBLJ25X150-40 carries the same ratings.
Theoretical Output Force (Ø25mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 206 N | 206 N |
| 0.7 MPa | 289 N | — |
| Max (@1.0 MPa) | 42 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 MBLJ25X150-40 matches these values.
Model Code: Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X150-40
| MALJ | Adjustable-stroke aluminum mini cylinder, double acting (discontinued). |
|---|---|
| 25 | 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 MALJ25 Adjustable Mini Air Cylinder MALJ25X150-40 Is Used
Carton Flap Tucking Arm
Adjust the retract end-position to tuck varying minor flaps on random-size case erectors, allowing the 206 N pull force to clear the carton path without repositioning the cylinder bracket.
Pneumatic Press Feed Finger
Fine-tune the 150 mm extension reach on a stamping press feed mechanism, using the 40 mm rear trim to dial the exact strip feed pitch while the fixed rubber bumper absorbs the shock.
Replacing the Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X150-40 with MBLJ25X150-40
To replace this MALJ25X150-40, order the exact MBLJ25X150-40 direct. Confirm the 25 mm bore, 150 mm stroke, 40 mm adjust code, and G1/8 port. Mounting is FA or LB only, as there is no back cover or SDB option. Because this SKU lacks the -S magnet, it cannot take a sensor; the MBLJ upgrade uses CMSG, DMSG, or EMSG switches if you need position sensing. The adjuster is a travel stop, not a lock. For a 150 mm stroke, prevent rod bending by ensuring rigid guide alignment to avoid side-load friction.
Upgrade checklist
- ✓ Order the MBLJ25X150-40 (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 MBLJ25X150-40 instead of this discontinued model.
Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X150-40 FAQ
Yes, the MALJ25X150-40 is discontinued. The direct replacement is the MBLJ25X150-40, matching the 25 mm bore, 150 mm stroke, 40 mm adjuster, G1/8 port, and mounting. The MBLJ upgrades the body to a riveted rolling-packed design, and if you need sensing, it uses CMSG, DMSG, or EMSG switches instead of the older CS1-M or DS1-M.
The 40 mm rear adjuster creates a usable stroke window of 110-150 mm. The adjuster acts only as a travel stop and does not lock the load without air pressure.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
Direct Upgrade
The MBLJ25X150-40 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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