This model is discontinued
AirTAC has phased out the MALJ series. You can still order this code here: we ship the direct replacement MBLJ20X80-75, 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 MALJ20X80-75
The AirTAC Airtac MALJ20 Adjustable Mini Cylinder MALJ20X80-75 is a double-acting aluminum mini cylinder with a rear adjustable-stroke stopper: you can trim up to 75 mm, giving a usable end-position window from 5 to 80 mm. This model is discontinued — the direct replacement is the MBLJ20X80-75.
- BoreØ20 mm
- Stroke80 mm
- Adjust window5–80 mm
- Port sizeG1/8
- Rod threadM8×1.25
- StatusDiscontinued → MBLJ20X80-75
- 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 MALJ20X80-75
The AirTAC MALJ20X80-75 is a discontinued double-acting mini cylinder with a 20mm bore and an 80mm stroke. It features a rear adjustable stopper that trims up to 75mm, yielding a usable end-position window of 5-80mm. The direct replacement is the MBLJ20X80-75, matching the bore, stroke, port, and force.
This SKU lacks a magnet and cannot accept a position sensor. The original MALJ uses threaded covers and a fixed rubber bumper; the MBLJ upgrade features a riveted rolling-packed body. The adjuster sets travel limits but does not hold loads without live air pressure. It uses an 8mm carbon-steel rod with a 20um hard chrome plating to resist wear and minor side loading.
Airtac MALJ20 Adjustable Mini Cylinder MALJ20X80-75 Technical Specifications
| Model | Airtac MALJ20 Adjustable Mini Cylinder MALJ20X80-75 |
|---|---|
| Series | MALJ adjustable-stroke mini cylinder (discontinued) |
| Replacement | MBLJ20X80-75 |
| Bore size | Ø20 mm |
| Stroke | 80 mm |
| Adjustable window | 5 – 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 MBLJ20X80-75 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 MBLJ20X80-75 matches these values.
Model Code: Airtac MALJ20 Adjustable Mini Cylinder MALJ20X80-75
| MALJ | Adjustable-stroke aluminum mini cylinder, double acting (discontinued). |
|---|---|
| 20 | Bore size in mm (20/25/32/40). |
| ×80 | Nominal stroke length in mm. |
| -75 | Adjustable amount: trim the end to a 5–80 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 MALJ20X80-75 Is Used
Label Applicator Stroke
Fine-tune the extension reach on a packaging label head, trimming the rear screw to accommodate varying box widths while the fixed rubber bumper softens the end impact.
Light-Duty Pin Insertion
Adjust the downstroke to press connector pins into plastic housings, preventing overtravel on delicate parts using the 132N pull force for safe retraction.
Replacing the Airtac MALJ20 Adjustable Mini Cylinder MALJ20X80-75 with MBLJ20X80-75
To replace the MALJ20X80-75, order the MBLJ20X80-75 direct upgrade. Confirm the 20mm bore, 80mm stroke, 75mm adjust code, G1/8 port, and PT thread. Mounting is FA or LB only; there is no back cover or SDB option. The adjuster is a travel stop, not a lock, so add an external pneumatic lock for held loads. Since this SKU has no -S magnet, it cannot take a sensor; the MBLJ upgrade uses CMSG/DMSG/EMSG switches.
At 80mm stroke, keep the rod guided to prevent side-load bending.
Upgrade checklist
- ✓ Order the MBLJ20X80-75 (same bore/stroke/adjust)
- ✓ Same 5–80 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 MBLJ20X80-75 instead of this discontinued model.
Airtac MALJ20 Adjustable Mini Cylinder MALJ20X80-75 FAQ
Yes, the MALJ20X80-75 is discontinued. The direct replacement is the MBLJ20X80-75, which matches the 20mm bore, 80mm stroke, 75mm adjust code, G1/8 port, and FA/LB mounting. The MBLJ upgrades the body to a riveted rolling-packed design and uses CMSG/DMSG/EMSG sensors if a magnet is added.
The 80mm stroke can be adjusted down by up to 75mm at the rear, giving a usable window of 5-80mm. The adjuster is a travel stop, not a lock; it cannot hold a load without live air pressure.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
Direct Upgrade
The MBLJ20X80-75 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 MALJ20X80-75 → MBLJ20X80-75)
Tell us the quantity and destination — we quote the direct MBLJ20X80-75 replacement with price, stock and lead time, usually within 7-8 hours.