This model is discontinued
AirTAC has phased out the MALJ series. You can still order this code here: we ship the direct replacement MBLJ40X125-10, 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 MALJ40X125-10
The AirTAC MALJ40 Adjustable Mini Cylinder MALJ40X125-10 is a double-acting aluminum mini cylinder with a rear adjustable-stroke stopper: you can trim up to 10 mm, giving a usable end-position window from 115 to 125 mm. This model is discontinued — the direct replacement is the MBLJ40X125-10.
- BoreØ40 mm
- Stroke125 mm
- Adjust window115–125 mm
- Port sizeG1/4
- Rod threadM12×1.25
- StatusDiscontinued → MBLJ40X125-10
- 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 MALJ40X125-10
The AirTAC MALJ40X125-10 is a discontinued 40mm bore, double-acting double-rod mini cylinder with a 125mm stroke and a 10mm rear adjustable stroke stopper. This gives a usable end-position window of 115-125mm. The direct replacement is the MBLJ40X125-10, matching bore, stroke, force, G1/4 port, and mounting.
This SKU lacks the -S magnet, so it cannot take a position sensor. The adjuster is a travel stop, not a lock; it sets the end position but will not hold a load without live air. End impact is softened by a fixed rubber bumper, not an adjustable air cushion. The MALJ uses threaded covers and a carbon-steel rod with a 20um hard chrome plating, whereas the MBLJ upgrade features a riveted rolling-packed body.
Airtac MALJ40 Adjustable Mini Cylinder MALJ40X125-10 Technical Specifications
| Model | Airtac MALJ40 Adjustable Mini Cylinder MALJ40X125-10 |
|---|---|
| Series | MALJ adjustable-stroke mini cylinder (discontinued) |
| Replacement | MBLJ40X125-10 |
| Bore size | Ø40 mm |
| Stroke | 125 mm |
| Adjustable window | 115 – 125 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 MBLJ40X125-10 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 MBLJ40X125-10 matches these values.
Model Code: Airtac MALJ40 Adjustable Mini Cylinder MALJ40X125-10
| MALJ | Adjustable-stroke aluminum mini cylinder, double acting (discontinued). |
|---|---|
| 40 | Bore size in mm (20/25/32/40). |
| ×125 | Nominal stroke length in mm. |
| -10 | Adjustable amount: trim the end to a 115–125 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 MALJ40 Adjustable Mini Cylinder MALJ40X125-10 Is Used
Pallet Case Erector
Fine-tune the 125mm end stop on a corrugated case erector arm, ensuring the 40mm bore's 528N pull reliably tucks the cardboard flap without tearing it.
PCB Router Clamping
Set a precise 120mm clamping depth on a PCB depaneling router fixture, using the fixed rubber bumper to absorb the 880N @0.7MPa end-impact without damaging the board.
Replacing the Airtac MALJ40 Adjustable Mini Cylinder MALJ40X125-10 with MBLJ40X125-10
To replace this MALJ40X125-10, use the MBLJ40X125-10 direct. Confirm the 40mm bore, 125mm stroke, 10mm adjust code, PT G1/4 port, M12x1.25 rod thread, and FA/LB mounting (no back cover or SDB). Since this SKU has no -S magnet, you lose position sensing; the MBLJ upgrade requires CMSG/DMSG/EMSG switches if you add a magnet. The adjuster is a stop, not a lock.
If you need more force, 40mm is the largest MALJ bore available. For strokes over 300mm, watch for rod-bending under side loads.
Upgrade checklist
- ✓ Order the MBLJ40X125-10 (same bore/stroke/adjust)
- ✓ Same 115–125 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 MBLJ40X125-10 instead of this discontinued model.
Airtac MALJ40 Adjustable Mini Cylinder MALJ40X125-10 FAQ
Yes, the MALJ40X125-10 is discontinued. The direct replacement is the MBLJ40X125-10, which matches the 40mm bore, 125mm stroke, 10mm adjust code, G1/4 port, and mounting. The MBLJ upgrades the body to a riveted rolling-packed design from the MALJ's threaded covers.
The 10mm rear adjuster creates a usable stroke window of 115-125mm. The adjuster is a travel stop, not a lock, and this no-S SKU cannot take a position sensor.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
Direct Upgrade
The MBLJ40X125-10 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 MALJ40X125-10 → MBLJ40X125-10)
Tell us the quantity and destination — we quote the direct MBLJ40X125-10 replacement with price, stock and lead time, usually within 7-8 hours.