This model is discontinued
AirTAC has phased out the MALJ series. You can still order this code here: we ship the direct replacement MBLJ20X80-20, 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 MALJ20 Adjustable Mini Cylinder MALJ20X80-20
The AirTAC Airtac MALJ20 Adjustable Mini Cylinder MALJ20X80-20 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 60 to 80 mm. This model is discontinued — the direct replacement is the MBLJ20X80-20.
- BoreØ20 mm
- Stroke80 mm
- Adjust window60–80 mm
- Port sizeG1/8
- Rod threadM8×1.25
- StatusDiscontinued → MBLJ20X80-20
- 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 MALJ20 Adjustable Mini Cylinder MALJ20X80-20
The AirTAC MALJ20X80-20 is a discontinued double-acting mini cylinder with a 20 mm bore and 80 mm stroke. It features a rear screw stopper that lets you trim up to 20 mm of travel, creating a usable end-position window of 60-80 mm. The direct replacement is the MBLJ20X80-20, matching the bore, stroke, adjust code, and G1/8 port.
This SKU has no -S magnet and cannot accept a position sensor. The adjuster is a travel stop, not a load lock; it sets the end position but will not hold a load without live air. The fixed rubber bumper softens end impact without offering adjustable cushioning. Note the construction shift: the MALJ uses threaded covers, while the MBLJ replacement features a riveted rolling-packed body.
Airtac MALJ20 Adjustable Mini Cylinder MALJ20X80-20 Technical Specifications
| Model | Airtac MALJ20 Adjustable Mini Cylinder MALJ20X80-20 |
|---|---|
| Series | MALJ adjustable-stroke mini cylinder (discontinued) |
| Replacement | MBLJ20X80-20 |
| Bore size | Ø20 mm |
| Stroke | 80 mm |
| Adjustable window | 60 – 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 MBLJ20X80-20 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 MBLJ20X80-20 matches these values.
Model Code: Airtac MALJ20 Adjustable Mini Cylinder MALJ20X80-20
| MALJ | Adjustable-stroke aluminum mini cylinder, double acting (discontinued). |
|---|---|
| 20 | Bore size in mm (20/25/32/40). |
| ×80 | Nominal stroke length in mm. |
| -20 | Adjustable amount: trim the end to a 60–80 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 MALJ20X80-20 Is Used
Dispensing Valve Probe
Set a precise 70 mm downstroke for a fluid dispenser; the rear stop sets the depth without adding external rod collars.
Small Part Ejector
Trim the 80 mm stroke to 60 mm to eject stamped contacts from a die set, preventing overtravel on the return.
Replacing the Airtac MALJ20 Adjustable Mini Cylinder MALJ20X80-20 with MBLJ20X80-20
To replace this MALJ20X80-20, order the direct replacement MBLJ20X80-20. Confirm the 20 mm bore, 80 mm stroke, 20 mm adjust code, G1/8 port, PT thread, and basic mounting. Because this SKU lacks the -S magnet, it cannot take a sensor; upgrading to the MBLJ without an S code retains this limitation. If you need CMSG/DMSG/EMSG sensors, specify an S code on the new cylinder.
Remember the rear adjuster is a stop, not a lock, so add an external pneumatic lock for held loads.
Upgrade checklist
- ✓ Order the MBLJ20X80-20 (same bore/stroke/adjust)
- ✓ Same 60–80 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 MBLJ20X80-20 instead of this discontinued model.
Airtac MALJ20 Adjustable Mini Cylinder MALJ20X80-20 FAQ
Yes, the MALJ20X80-20 is discontinued. The direct replacement is the MBLJ20X80-20, which matches the 20 mm bore, 80 mm stroke, 20 mm adjust code, and G1/8 port. The MBLJ upgrades the body to a riveted rolling-packed design from the original threaded covers.
The bore is 20 mm with a standard 80 mm stroke. The adjustable window is 60-80 mm (trimming up to 20 mm at the rear). The port is G1/8.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
Direct Upgrade
The MBLJ20X80-20 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 MALJ20 Adjustable Mini Cylinder MALJ20X80-20 → MBLJ20X80-20)
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