This model is discontinued
AirTAC has phased out the MALJ series. You can still order this code here: we ship the direct replacement MBLJ20X500-10, 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 MALJ20X500-10
The AirTAC Airtac MALJ20 Adjustable Mini Cylinder MALJ20X500-10 is a double-acting aluminum mini cylinder with a rear adjustable-stroke stopper: you can trim up to 10 mm, giving a usable end-position window from 490 to 500 mm. This model is discontinued — the direct replacement is the MBLJ20X500-10.
- BoreØ20 mm
- Stroke500 mm
- Adjust window490–500 mm
- Port sizeG1/8
- Rod threadM8×1.25
- StatusDiscontinued → MBLJ20X500-10
- 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 MALJ20X500-10
The AirTAC MALJ20X500-10 is a discontinued double-acting, double-rod mini cylinder. It features a 20mm bore and a 500mm non-standard stroke, making it a made-to-order unit that exceeds the 300mm standard limit. The rear screw stopper allows you to trim up to 10mm, giving a usable stroke window of 490-500mm to fine-tune the end position without external stops.
The direct replacement is the MBLJ20X500-10, matching the bore, stroke, adjust code, and G1/8 port. This SKU has no -S magnet, so it cannot take a position sensor. The MBLJ upgrade switches from threaded covers to a riveted rolling-packed body. Note that the adjuster is a travel stop, not a lock; it sets the end position but does not hold load without live air. End impact is softened by a fixed rubber bumper, as there is no adjustable air cushion.
Airtac MALJ20 Adjustable Mini Cylinder MALJ20X500-10 Technical Specifications
| Model | Airtac MALJ20 Adjustable Mini Cylinder MALJ20X500-10 |
|---|---|
| Series | MALJ adjustable-stroke mini cylinder (discontinued) |
| Replacement | MBLJ20X500-10 |
| Bore size | Ø20 mm |
| Stroke | 500 mm |
| Adjustable window | 490 – 500 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 MBLJ20X500-10 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 MBLJ20X500-10 matches these values.
Model Code: Airtac MALJ20 Adjustable Mini Cylinder MALJ20X500-10
| MALJ | Adjustable-stroke aluminum mini cylinder, double acting (discontinued). |
|---|---|
| 20 | Bore size in mm (20/25/32/40). |
| ×500 | Nominal stroke length in mm. |
| -10 | Adjustable amount: trim the end to a 490–500 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 MALJ20X500-10 Is Used
PCB Edge Conveyor Trimming
Dial in the 490-500mm reach on a PCB conveyor transfer arm. The 10mm rear stop lets you align board handoff precisely without adding external spacers to the frame.
Textile Loom Tensioner
Set the exact thread tensioning depth on a textile loom guide.
Film Winder Core Stop
Establish a precise end-of-travel stop for a packaging film winder core loader. The fixed rubber bumper absorbs the impact of the long 500mm extension, protecting the 8mm rod.
Replacing the Airtac MALJ20 Adjustable Mini Cylinder MALJ20X500-10 with MBLJ20X500-10
To replace this MALJ20X500-10, order the direct replacement MBLJ20X500-10. Confirm the 20mm bore, 500mm non-standard stroke, 10mm adjust code, G1/8 port, and M8x1.25 rod-end thread. Mounting is Basic, FA, or LB only; there is no back-cover or SDB option. Because this SKU lacks the -S magnet, it cannot accept a position sensor. The MBLJ upgrade uses CMSG/DMSG/EMSG sensors if you need them.
Because the 500mm stroke is highly extended on an 8mm rod, be wary of rod-bending under side loads. Remember the adjuster is a stop, not a lock; use an external lock for held loads.
Upgrade checklist
- ✓ Order the MBLJ20X500-10 (same bore/stroke/adjust)
- ✓ Same 490–500 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 MBLJ20X500-10 instead of this discontinued model.
Airtac MALJ20 Adjustable Mini Cylinder MALJ20X500-10 FAQ
Yes, the MALJ20X500-10 is discontinued. The direct replacement is the MBLJ20X500-10, which matches the 20mm bore, 500mm stroke, 10mm adjust code, and G1/8 port. The MBLJ upgrades the body to a riveted rolling-packed design from the original threaded covers.
The 10mm rear adjuster creates a usable stroke window of 490-500mm. The adjuster is a travel stop, not a lock, and cannot hold a load without live air.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
Direct Upgrade
The MBLJ20X500-10 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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