This model is discontinued
AirTAC has phased out the MALJ series. You can still order this code here: we ship the direct replacement MBLJ20X150-30S, 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 MALJ20X150-30-S
The AirTAC Airtac MALJ20 Adjustable Mini Cylinder MALJ20X150-30-S is a double-acting aluminum mini cylinder with a rear adjustable-stroke stopper: you can trim up to 30 mm, giving a usable end-position window from 120 to 150 mm. This model is discontinued — the direct replacement is the MBLJ20X150-30-S.
- BoreØ20 mm
- Stroke150 mm
- Adjust window120–150 mm
- Port sizeG1/8
- Rod threadM8×1.25
- StatusDiscontinued → MBLJ20X150-30-S
- 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 MALJ20X150-30-S
The AirTAC MALJ20X150-30-S is a discontinued double-acting, double-rod mini cylinder with a rear adjustable-stroke stopper. It provides a usable extension window of 120-150 mm by letting you trim up to 30 mm at the rear without external stops. The direct replacement is the MBLJ20X150-30-S.
This -S SKU includes a magnet for position sensing. The older MAL uses CS1-M / DS1-M switches and threaded covers, while the MBLJ upgrades to CMSG / DMSG / EMSG sensors and a riveted rolling-packed body. The fixed rubber bumper softens end impact, but the rear adjuster is strictly a travel stop, not a lock, so it will not hold a load without live air.
Airtac MALJ20 Adjustable Mini Cylinder MALJ20X150-30-S Technical Specifications
| Model | Airtac MALJ20 Adjustable Mini Cylinder MALJ20X150-30-S |
|---|---|
| Series | MALJ adjustable-stroke mini cylinder (discontinued) |
| Replacement | MBLJ20X150-30-S |
| Bore size | Ø20 mm |
| Stroke | 150 mm |
| Adjustable window | 120 – 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 MBLJ20X150-30-S 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 MBLJ20X150-30-S matches these values.
Model Code: Airtac MALJ20 Adjustable Mini Cylinder MALJ20X150-30-S
| MALJ | Adjustable-stroke aluminum mini cylinder, double acting (discontinued). |
|---|---|
| 20 | Bore size in mm (20/25/32/40). |
| ×150 | Nominal stroke length in mm. |
| -30 | Adjustable amount: trim the end to a 120–150 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 MALJ20X150-30-S Is Used
PCB Router Z-Axis Depth
Dials the cutting depth on a printed circuit board router. The 120-150 mm window lets an operator fine-tune the 157 N plunge reach without swapping hardware.
Dispenser Nozzle Calibration
Sets the exact dispense height for an adhesive nozzle. The 30 mm rear stopper trims the extension safely, while the rubber bumper softens the end impact.
Light-Part Ejector Stroke
Ejects small plastic clips from an injection mold. The 132 N pull force retracts the rod, and the adjustable stop prevents over-travel into the mold cavity.
Replacing the Airtac MALJ20 Adjustable Mini Cylinder MALJ20X150-30-S with MBLJ20X150-30-S
To replace this MALJ20X150-30-S, order the MBLJ20X150-30-S. Confirm the 20 mm bore, 150 mm stroke, 30 mm adjust code, G1/8 PT port, M8x1.25 rod thread, and FA/LB mounting (there is no back cover or SDB option). If sizing down, the adjacent bore is unavailable below 20 mm. Note that the -S magnet requires switching from CS1-M / DS1-M to CMSG / DMSG / EMSG sensors on the new body. The rear adjuster sets the end position but does not hold load without air; use an external lock for held loads.
Upgrade checklist
- ✓ Order the MBLJ20X150-30-S (same bore/stroke/adjust)
- ✓ Same 120–150 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 MBLJ20X150-30-S instead of this discontinued model.
Airtac MALJ20 Adjustable Mini Cylinder MALJ20X150-30-S FAQ
Yes, the MALJ20X150-30-S is discontinued. The direct replacement is the MBLJ20X150-30-S, which matches the 20 mm bore, 150 mm stroke, 30 mm adjust code, and G1/8 port. You will need to upgrade your sensors from CS1-M / DS1-M to CMSG / DMSG / EMSG switches for the new riveted body.
The 30 mm adjust code creates a usable stroke window of 120-150 mm. The rear adjuster is a travel stop, not a lock, so it cannot hold a load without live air.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
Direct Upgrade
The MBLJ20X150-30-S 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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