This model is discontinued
AirTAC has phased out the MALJ series. You can still order this code here: we ship the direct replacement MBLJ25X150-20, 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 MALJ25X150-20
The AirTAC MALJ25 Adjustable Mini Air Cylinder MALJ25X150-20 is a double-acting aluminum mini cylinder with a rear adjustable-stroke stopper: you can trim up to 20 mm, giving a usable end-position window from 130 to 150 mm. This model is discontinued — the direct replacement is the MBLJ25X150-20.
- BoreØ25 mm
- Stroke150 mm
- Adjust window130–150 mm
- Port sizeG1/8
- Rod threadM10×1.25
- StatusDiscontinued → MBLJ25X150-20
- 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 MALJ25X150-20
The AirTAC MALJ25X150-20 is a discontinued double-acting double-rod mini cylinder with a 20 mm rear stroke adjuster. This yields a usable travel window of 130-150 mm. The direct replacement is the MBLJ25X150-20, matching the bore, stroke, adjust code, G1/8 port and mounting.
This SKU lacks the -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. It uses a fixed rubber bumper rather than an adjustable air cushion. During the upgrade, note the MBLJ shifts from threaded covers to a riveted rolling-packed body.
Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X150-20 Technical Specifications
| Model | Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X150-20 |
|---|---|
| Series | MALJ adjustable-stroke mini cylinder (discontinued) |
| Replacement | MBLJ25X150-20 |
| Bore size | Ø25 mm |
| Stroke | 150 mm |
| Adjustable window | 130 – 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 MBLJ25X150-20 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 MBLJ25X150-20 matches these values.
Model Code: Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X150-20
| MALJ | Adjustable-stroke aluminum mini cylinder, double acting (discontinued). |
|---|---|
| 25 | Bore size in mm (20/25/32/40). |
| ×150 | Nominal stroke length in mm. |
| -20 | Adjustable amount: trim the end to a 130–150 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 MALJ25X150-20 Is Used
PCB Router Depth Stop
Dials the final 130-150 mm reach on a PCB depaneling router, using the 20 mm trim to set cutter depth without shimming the tool head.
Aluminum Extrusion Saw
Adjusts the clamp return position on a cut-off saw to clear different extrusion profiles, preventing the rod from bottoming out prematurely.
Replacing the Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X150-20 with MBLJ25X150-20
To replace the MALJ25X150-20 with the MBLJ25X150-20, confirm the 25 mm bore, 150 mm stroke, 20 mm adjust code, G1/8 PT port, and M10x1.25 rod thread. Mounting is FA or LB only; there is no back cover or SDB option. Because this SKU lacks the -S magnet, it cannot take a sensor; if you need sensing on the new MBLJ, you must select an -S model which uses CMSG/DMSG/EMSG switches instead of the older CS1-M/DS1-M. The adjuster is a stop, not a lock.
Upgrade checklist
- ✓ Order the MBLJ25X150-20 (same bore/stroke/adjust)
- ✓ Same 130–150 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 MBLJ25X150-20 instead of this discontinued model.
Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X150-20 FAQ
Yes, the MALJ25X150-20 is discontinued. The direct replacement is the MBLJ25X150-20, which matches the 25 mm bore, 150 mm stroke, 20 mm adjust code, G1/8 port, and 50 kgf max force. The MBLJ upgrades the construction from threaded covers to a riveted rolling-packed body.
The -20 adjust code means you can trim up to 20 mm at the rear, creating a usable stroke window of 130-150 mm. The adjuster acts only as a travel stop and does not hold the load without live air pressure.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
Direct Upgrade
The MBLJ25X150-20 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 MALJ25 Adjustable Mini Air Cylinder MALJ25X150-20 → MBLJ25X150-20)
Tell us the quantity and destination — we quote the direct MBLJ25X150-20 replacement with price, stock and lead time, usually within 7-8 hours.