This model is discontinued
AirTAC has phased out the MALJ series. You can still order this code here: we ship the direct replacement MBLJ20X150-50, 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 MALJ20X150-50
The AirTAC Airtac MALJ20 Adjustable Mini Cylinder MALJ20X150-50 is a double-acting aluminum mini cylinder with a rear adjustable-stroke stopper: you can trim up to 50 mm, giving a usable end-position window from 100 to 150 mm. This model is discontinued — the direct replacement is the MBLJ20X150-50.
- BoreØ20 mm
- Stroke150 mm
- Adjust window100–150 mm
- Port sizeG1/8
- Rod threadM8×1.25
- StatusDiscontinued → MBLJ20X150-50
- 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 MALJ20X150-50
The AirTAC MALJ20X150-50 is a discontinued double-acting double-rod mini cylinder with a rear adjustable stroke. It features a 20 mm bore, 150 mm stroke, and a 50 mm adjust code, providing a usable end-position window of 100-150 mm. The direct replacement is the MBLJ20X150-50, matching the bore, stroke, force, G1/8 port, and mounting.
This SKU lacks a magnet (-S), so it cannot accept 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 fixed rubber bumper softens end impact, and there is no adjustable air cushion. Upgrading to the MBLJ20X150-50 moves you from threaded covers to a riveted rolling-packed body, and if you later need a sensor, the MBLJ uses the modern CMSG/DMSG/EMSG switches instead of the older CS1-M/DS1-M family.
Airtac MALJ20 Adjustable Mini Cylinder MALJ20X150-50 Technical Specifications
| Model | Airtac MALJ20 Adjustable Mini Cylinder MALJ20X150-50 |
|---|---|
| Series | MALJ adjustable-stroke mini cylinder (discontinued) |
| Replacement | MBLJ20X150-50 |
| Bore size | Ø20 mm |
| Stroke | 150 mm |
| Adjustable window | 100 – 150 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 MBLJ20X150-50 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 MBLJ20X150-50 matches these values.
Model Code: Airtac MALJ20 Adjustable Mini Cylinder MALJ20X150-50
| MALJ | Adjustable-stroke aluminum mini cylinder, double acting (discontinued). |
|---|---|
| 20 | Bore size in mm (20/25/32/40). |
| ×150 | Nominal stroke length in mm. |
| -50 | Adjustable amount: trim the end to a 100–150 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 MALJ20X150-50 Is Used
Wire stripping gate
Fine-tune the closure position on an automated wire stripping line, trimming the rear stop up to 50 mm to accommodate varying jacket thicknesses without swapping hardware.
Light-duty parts ejector
Eject small plastic moulded parts from a sub-assembly fixture, relying on the 132 N pull force to retract the 8 mm rod cleanly within the 150 mm stroke envelope.
Replacing the Airtac MALJ20 Adjustable Mini Cylinder MALJ20X150-50 with MBLJ20X150-50
To replace this MALJ20X150-50, order the exact direct replacement MBLJ20X150-50. Confirm the 20 mm bore, 150 mm stroke, 50 mm adjust code, G1/8 PT port, and M8x1.25 rod-end thread. Mounting is Basic, FA, or LB only; there is no back-cover or SDB option. Since this SKU lacks the -S magnet, it cannot take a sensor. Remember the adjuster is a stop, not a lock, so add an external lock for held loads. With a 150 mm stroke, be mindful of rod-to-side-load bending on extension.
Upgrade checklist
- ✓ Order the MBLJ20X150-50 (same bore/stroke/adjust)
- ✓ Same 100–150 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 MBLJ20X150-50 instead of this discontinued model.
Airtac MALJ20 Adjustable Mini Cylinder MALJ20X150-50 FAQ
Yes, the MALJ20X150-50 is discontinued. The MBLJ upgrades the body to a riveted rolling-packed design and uses CMSG/DMSG/EMSG sensors if you add an -S magnet.
The 50 mm adjust code allows you to trim the rear end position, creating a usable stroke window from 100 mm to 150 mm. The adjuster is a travel stop, not a lock.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
Direct Upgrade
The MBLJ20X150-50 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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