This model is discontinued
AirTAC has phased out the MALJ series. You can still order this code here: we ship the direct replacement MBLJ20X80-40, 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 MALJ20 Adjustable Mini Cylinder MALJ20X80-40
The AirTAC Airtac MALJ20 Adjustable Mini Cylinder MALJ20X80-40 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 40 to 80 mm. This model is discontinued — the direct replacement is the MBLJ20X80-40.
- BoreØ20 mm
- Stroke80 mm
- Adjust window40–80 mm
- Port sizeG1/8
- Rod threadM8×1.25
- StatusDiscontinued → MBLJ20X80-40
- 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 MALJ20 Adjustable Mini Cylinder MALJ20X80-40
The AirTAC MALJ20X80-40 is a discontinued double-acting, double-rod mini cylinder with a 20 mm bore and an 80 mm stroke. A rear screw lets you trim up to 40 mm, yielding a usable end-position window of 40-80 mm. The direct replacement is the MBLJ20X80-40, matching the bore, stroke, adjust code, and G1/8 port.
This SKU has no -S magnet, so it cannot take a position sensor. The adjuster is a travel stop, not a lock; it sets the end position but does not hold load without live air. The fixed rubber bumper softens end impact, but it is not an adjustable cushion. Upgrading to the MBLJ20X80-40 replaces the threaded covers with a riveted rolling-packed body.
Airtac MALJ20 Adjustable Mini Cylinder MALJ20X80-40 Technical Specifications
| Model | Airtac MALJ20 Adjustable Mini Cylinder MALJ20X80-40 |
|---|---|
| Series | MALJ adjustable-stroke mini cylinder (discontinued) |
| Replacement | MBLJ20X80-40 |
| Bore size | Ø20 mm |
| Stroke | 80 mm |
| Adjustable window | 40 – 80 mm |
| Acting type | Double acting, adjustable stroke |
| Port size | G1/8 |
| Rod thread | M8×1.25 |
| 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 MBLJ20X80-40 carries the same ratings.
Theoretical Output Force (Ø20mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 132 N | 132 N |
| 0.7 MPa | 185 N | — |
| Max (@1.0 MPa) | 27 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 MBLJ20X80-40 matches these values.
Model Code: Airtac MALJ20 Adjustable Mini Cylinder MALJ20X80-40
| MALJ | Adjustable-stroke aluminum mini cylinder, double acting (discontinued). |
|---|---|
| 20 | Bore size in mm (20/25/32/40). |
| ×80 | Nominal stroke length in mm. |
| -40 | Adjustable amount: trim the end to a 40–80 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 MALJ20 Adjustable Mini Cylinder MALJ20X80-40 Is Used
Dispense Valve Profiling
Sets the exact retract distance for a 20 mm bore needle valve, allowing precise shot tuning without reprogramming the PLC.
Wire Cut-to-Length
Trims the stroke window to 40-80 mm for varying wire lengths, ensuring the cutter returns to a safe clearance point.
Replacing the Airtac MALJ20 Adjustable Mini Cylinder MALJ20X80-40 with MBLJ20X80-40
To replace this MALJ20X80-40, order the MBLJ20X80-40. Confirm the 20 mm bore, 80 mm stroke, 40 mm adjust code, G1/8 port, PT threads, and Basic/FA/LB mounting (no back cover or SDB). Since this SKU lacks the -S magnet, it cannot accept a sensor; if you need sensing, the MBLJ replacement will require CMSG/DMSG/EMSG switches instead of the older CS1-M/DS1-M. The adjuster is a stop, not a lock.
At 80 mm stroke, keep the rod guided to prevent side-load bending.
Upgrade checklist
- ✓ Order the MBLJ20X80-40 (same bore/stroke/adjust)
- ✓ Same 40–80 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 MBLJ20X80-40 instead of this discontinued model.
Airtac MALJ20 Adjustable Mini Cylinder MALJ20X80-40 FAQ
Yes, the MALJ20X80-40 is discontinued. The direct replacement is the MBLJ20X80-40, matching the 20 mm bore, 80 mm stroke, 40 mm adjust code, and G1/8 port. The MBLJ upgrades the body to a riveted rolling-packed design.
The -40 adjuster lets you trim up to 40 mm at the rear, giving a usable window of 40-80 mm. The adjuster is a travel stop, not a lock; it sets the end position but does not hold load without live air.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
Direct Upgrade
The MBLJ20X80-40 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 MALJ20 Adjustable Mini Cylinder MALJ20X80-40 → MBLJ20X80-40)
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