This model is discontinued
AirTAC has phased out the MALJ series. You can still order this code here: we ship the direct replacement MBLJ25X125-40, 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 MALJ25X125-40
The AirTAC MALJ25 Adjustable Mini Air Cylinder MALJ25X125-40 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 85 to 125 mm. This model is discontinued — the direct replacement is the MBLJ25X125-40.
- BoreØ25 mm
- Stroke125 mm
- Adjust window85–125 mm
- Port sizeG1/8
- Rod threadM10×1.25
- StatusDiscontinued → MBLJ25X125-40
- 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 MALJ25X125-40
The AirTAC MALJ25X125-40 is a discontinued adjustable-stroke, double-acting mini cylinder. It features a 25mm bore, 125mm stroke, and a 40mm rear adjuster that creates a usable travel window of 85-125mm. The direct replacement is the MBLJ25X125-40, matching the bore, stroke, force, and port.
This SKU lacks a magnet (-S), so it cannot accept a position sensor. The original MALJ uses threaded covers and a fixed rubber bumper, while the MBLJ upgrade features a riveted rolling-packed body. Remember that the rear adjuster is a travel stop, not a lock; it sets the end position but will not hold a load without live air pressure.
Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X125-40 Technical Specifications
| Model | Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X125-40 |
|---|---|
| Series | MALJ adjustable-stroke mini cylinder (discontinued) |
| Replacement | MBLJ25X125-40 |
| Bore size | Ø25 mm |
| Stroke | 125 mm |
| Adjustable window | 85 – 125 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 MBLJ25X125-40 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 MBLJ25X125-40 matches these values.
Model Code: Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X125-40
| MALJ | Adjustable-stroke aluminum mini cylinder, double acting (discontinued). |
|---|---|
| 25 | Bore size in mm (20/25/32/40). |
| ×125 | Nominal stroke length in mm. |
| -40 | Adjustable amount: trim the end to a 85–125 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 MALJ25X125-40 Is Used
PCB Router Z-Axis
Dial in the 85-125mm depth window on a printed circuit board routing spindle to precisely control plunge depth without adding external physical stops to the head.
Packaging Fold Gate
Regulate the travel of a cardboard carton folding flap gate, trimming up to 40mm off the 125mm stroke to accommodate varying box heights without swapping hardware.
Replacing the Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X125-40 with MBLJ25X125-40
To replace the MALJ25X125-40, select the MBLJ25X125-40 to keep the exact 25mm bore, 125mm stroke, 40mm adjust code, G1/8 port, and PT thread. Mounting remains Basic, FA, or LB only, as there is no back-cover or SDB option. Since this SKU has no magnet, you lose sensor capability; the MBLJ with a -S magnet uses CMSG/DMSG/EMSG switches instead of the older CS1-M/DS1-M. The adjuster is a stop, not a lock, so add an external lock for held loads.
Upgrade checklist
- ✓ Order the MBLJ25X125-40 (same bore/stroke/adjust)
- ✓ Same 85–125 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 MBLJ25X125-40 instead of this discontinued model.
Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X125-40 FAQ
Yes, the MALJ25X125-40 is discontinued. The MBLJ upgrades the body to a riveted rolling-packed design.
The 40mm rear adjuster lets you trim the end position, creating a usable stroke window of 85-125mm. The adjuster is a travel stop, not a load lock.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
Direct Upgrade
The MBLJ25X125-40 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
Request a Quote (Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X125-40 → MBLJ25X125-40)
Tell us the quantity and destination — we quote the direct MBLJ25X125-40 replacement with price, stock and lead time, usually within 7-8 hours.