This model is discontinued
AirTAC has phased out the MALJ series. You can still order this code here: we ship the direct replacement MBLJ20X80-100, 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 MALJ20X80-100
The AirTAC Airtac MALJ20 Adjustable Mini Cylinder MALJ20X80-100 is a double-acting aluminum mini cylinder with a rear adjustable-stroke stopper: you can trim up to 100 mm, giving a usable end-position window from -20 to 80 mm. This model is discontinued — the direct replacement is the MBLJ20X80-100.
- BoreØ20 mm
- Stroke80 mm
- Adjust window-20–80 mm
- Port sizeG1/8
- Rod threadM8×1.25
- StatusDiscontinued → MBLJ20X80-100
- 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 MALJ20X80-100
The AirTAC MALJ20X80-100 is a discontinued double-acting mini cylinder with a rear adjustable stroke stopper. It has a 20mm bore, 80mm stroke, and a 100mm adjust code, creating a usable end-position window from 0 to 80mm. The direct replacement is the MBLJ20X80-100, matching bore, stroke, port, and force.
This SKU lacks the -S magnet option, so it cannot take a position sensor. The rear adjuster is a travel stop, not a lock; it sets the end position but will not hold a load without live air. The original MALJ uses threaded covers and a fixed rubber bumper, while the MBLJ upgrade features a riveted rolling-packed body.
Airtac MALJ20 Adjustable Mini Cylinder MALJ20X80-100 Technical Specifications
| Model | Airtac MALJ20 Adjustable Mini Cylinder MALJ20X80-100 |
|---|---|
| Series | MALJ adjustable-stroke mini cylinder (discontinued) |
| Replacement | MBLJ20X80-100 |
| Bore size | Ø20 mm |
| Stroke | 80 mm |
| Adjustable window | -20 – 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 MBLJ20X80-100 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 MBLJ20X80-100 matches these values.
Model Code: Airtac MALJ20 Adjustable Mini Cylinder MALJ20X80-100
| MALJ | Adjustable-stroke aluminum mini cylinder, double acting (discontinued). |
|---|---|
| 20 | Bore size in mm (20/25/32/40). |
| ×80 | Nominal stroke length in mm. |
| -100 | Adjustable amount: trim the end to a -20–80 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 MALJ20X80-100 Is Used
Wire Straightener Feeder
Trims the rear travel stop to tune the wire pull length without adding external physical stops to the compact feeder head.
Small Parts Ejector
Adjusts the kick-out reach on a pick-and-place gantry to safely eject small plastic parts without overtraveling the 8mm rod.
Replacing the Airtac MALJ20 Adjustable Mini Cylinder MALJ20X80-100 with MBLJ20X80-100
To replace the MALJ20X80-100, order the direct replacement MBLJ20X80-100. Confirm the 20mm bore, 80mm stroke, 100mm adjust code, G1/8 port, and PT thread. Mounting is Basic, FA, or LB only (no back cover or SDB). Because this SKU has no -S magnet, it cannot accept a sensor; the MBLJ upgrade uses CMSG/DMSG/EMSG switches if you need sensing. The adjuster is a stop, not a lock.
For any stroke >= 300mm, add a side-load / rod-bending line. (This 80mm stroke is safe from rod-bending concerns).
Upgrade checklist
- ✓ Order the MBLJ20X80-100 (same bore/stroke/adjust)
- ✓ Same -20–80 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 MBLJ20X80-100 instead of this discontinued model.
Airtac MALJ20 Adjustable Mini Cylinder MALJ20X80-100 FAQ
Yes, the MALJ20X80-100 is discontinued. The direct replacement is the MBLJ20X80-100, which matches the 20mm bore, 80mm stroke, 100mm adjust code, G1/8 port, and mounting. The MBLJ upgrades the body to a riveted rolling-packed design from the original threaded covers.
The 100mm adjust code lets you trim the rear stop, creating a usable window from 0 to 80mm. The adjuster is a travel stop, not a lock.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
Direct Upgrade
The MBLJ20X80-100 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
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