This model is discontinued
AirTAC has phased out the MALJ series. You can still order this code here: we ship the direct replacement MBLJ40X225-20, 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 MALJ40 Adjustable Mini Cylinder MALJ40X225-20
The AirTAC MALJ40 Adjustable Mini Cylinder MALJ40X225-20 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 205 to 225 mm. This model is discontinued — the direct replacement is the MBLJ40X225-20.
- BoreØ40 mm
- Stroke225 mm
- Adjust window205–225 mm
- Port sizeG1/4
- Rod threadM12×1.25
- StatusDiscontinued → MBLJ40X225-20
- 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 MALJ40 Adjustable Mini Cylinder MALJ40X225-20
The AirTAC MALJ40X225-20 is a discontinued double-acting mini cylinder with a 20mm rear stroke adjuster. It provides a usable travel window of 205-225mm. The direct replacement is the MBLJ40X225-20.
This SKU lacks a magnet and cannot take a position sensor. The adjuster is a travel stop, not a lock. It uses a fixed rubber bumper, not an adjustable cushion. The old threaded covers are upgraded to a riveted body on the MBLJ.
Airtac MALJ40 Adjustable Mini Cylinder MALJ40X225-20 Technical Specifications
| Model | Airtac MALJ40 Adjustable Mini Cylinder MALJ40X225-20 |
|---|---|
| Series | MALJ adjustable-stroke mini cylinder (discontinued) |
| Replacement | MBLJ40X225-20 |
| Bore size | Ø40 mm |
| Stroke | 225 mm |
| Adjustable window | 205 – 225 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 MBLJ40X225-20 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 MBLJ40X225-20 matches these values.
Model Code: Airtac MALJ40 Adjustable Mini Cylinder MALJ40X225-20
| MALJ | Adjustable-stroke aluminum mini cylinder, double acting (discontinued). |
|---|---|
| 40 | Bore size in mm (20/25/32/40). |
| ×225 | Nominal stroke length in mm. |
| -20 | Adjustable amount: trim the end to a 205–225 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 MALJ40X225-20 Is Used
PCB Test Trays
Fine-tune the end stop for PCB functional test trays without adding external shims, ensuring exact insertion depth.
Carton Flap Folders
Adjust the folding stroke on packaging lines to handle different carton heights, relying on the fixed bumper to soften impact.
Replacing the Airtac MALJ40 Adjustable Mini Cylinder MALJ40X225-20 with MBLJ40X225-20
Replace this with the MBLJ40X225-20. Confirm the 40mm bore, 225mm stroke, 20mm adjust code, G1/4 port, PT thread, and FA/LB mounting (no back cover or SDB). Since this SKU has no -S magnet, it cannot take a sensor; the MBLJ upgrade uses CMSG/DMSG/EMSG switches if needed. The adjuster sets end position but does not hold load without air.
At 225mm stroke, avoid side loads to prevent rod bending.
Upgrade checklist
- ✓ Order the MBLJ40X225-20 (same bore/stroke/adjust)
- ✓ Same 205–225 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 MBLJ40X225-20 instead of this discontinued model.
Airtac MALJ40 Adjustable Mini Cylinder MALJ40X225-20 FAQ
Yes, the MALJ40X225-20 is discontinued. The direct replacement is the MBLJ40X225-20, which matches the 40mm bore, 225mm stroke, 20mm adjuster, and G1/4 port. The MBLJ upgrades the threaded covers to a riveted body.
The 20mm rear adjuster gives a usable stroke window of 205-225mm. The adjuster is a travel stop, not a lock.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
Direct Upgrade
The MBLJ40X225-20 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 MALJ40 Adjustable Mini Cylinder MALJ40X225-20 → MBLJ40X225-20)
Tell us the quantity and destination — we quote the direct MBLJ40X225-20 replacement with price, stock and lead time, usually within 7-8 hours.