This model is discontinued
AirTAC has phased out the MALJ series. You can still order this code here: we ship the direct replacement MBLJ20X150-20, 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 MALJ20X150-20
The AirTAC Airtac MALJ20 Adjustable Mini Cylinder MALJ20X150-20 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 130 to 150 mm. This model is discontinued — the direct replacement is the MBLJ20X150-20.
- BoreØ20 mm
- Stroke150 mm
- Adjust window130–150 mm
- Port sizeG1/8
- Rod threadM8×1.25
- StatusDiscontinued → MBLJ20X150-20
- 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 MALJ20X150-20
The AirTAC MALJ20X150-20 is a discontinued 20mm bore, double-acting double-rod mini cylinder with a 150mm stroke and a 20mm rear adjustable stroke stopper. This gives a usable end-position window of 130-150mm. The direct replacement is the MBLJ20X150-20, matching bore, stroke, force, G1/8 port and mounting.
This SKU lacks the -S magnet, so it cannot take a position sensor. The adjuster is a travel stop, not a lock; it sets the end position but will not hold a load without live air. The MALJ uses threaded covers and a fixed rubber bumper, while the MBLJ upgrade features a riveted rolling-packed body. Use this compact cylinder to fine-tune reach without adding external stops.
Airtac MALJ20 Adjustable Mini Cylinder MALJ20X150-20 Technical Specifications
| Model | Airtac MALJ20 Adjustable Mini Cylinder MALJ20X150-20 |
|---|---|
| Series | MALJ adjustable-stroke mini cylinder (discontinued) |
| Replacement | MBLJ20X150-20 |
| Bore size | Ø20 mm |
| Stroke | 150 mm |
| Adjustable window | 130 – 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 MBLJ20X150-20 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 MBLJ20X150-20 matches these values.
Model Code: Airtac MALJ20 Adjustable Mini Cylinder MALJ20X150-20
| MALJ | Adjustable-stroke aluminum mini cylinder, double acting (discontinued). |
|---|---|
| 20 | Bore size in mm (20/25/32/40). |
| ×150 | Nominal stroke length in mm. |
| -20 | Adjustable amount: trim the end to a 130–150 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 MALJ20X150-20 Is Used
Wire Straightener Exit Guide
Trim the exit position by up to 20mm on a fine-wire straightening machine to accommodate different wire spool depths, relying on the compact 20mm bore to fit tight machine frames.
Label Applicator Tamp Stroke
Adjust the tamp reach within the 130-150mm window for a label applicator head, fine-tuning the contact distance against varying box heights without swapping the cylinder body.
Replacing the Airtac MALJ20 Adjustable Mini Cylinder MALJ20X150-20 with MBLJ20X150-20
To replace the MALJ20X150-20, order the MBLJ20X150-20. Confirm the 20mm bore, 150mm stroke, 20mm adjust code, G1/8 port, PT thread, and FA or LB mounting (no back cover or SDB). Because this SKU has no -S magnet, it cannot accept a sensor; if you need switches, the MBLJ replacement uses CMSG/DMSG/EMSG sensors instead of the older CS1-M/DS1-M. Remember the adjuster is a stop, not a lock.
With a 150mm stroke, avoid side-load to prevent rod-bending; guide the load externally.
Upgrade checklist
- ✓ Order the MBLJ20X150-20 (same bore/stroke/adjust)
- ✓ Same 130–150 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 MBLJ20X150-20 instead of this discontinued model.
Airtac MALJ20 Adjustable Mini Cylinder MALJ20X150-20 FAQ
Yes, the MALJ20X150-20 is discontinued. The direct replacement is the MBLJ20X150-20. It matches the 20mm bore, 150mm stroke, 20mm adjust code, G1/8 port, and FA/LB mounting. The MBLJ upgrades to a riveted rolling-packed body from the original threaded covers.
The 20mm rear adjuster allows a usable stroke window of 130-150mm. The adjuster is a travel stop, not a lock; it cannot hold a load without live air. This SKU has no magnet and cannot take a sensor.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
Direct Upgrade
The MBLJ20X150-20 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 MALJ20X150-20 → MBLJ20X150-20)
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