This model is discontinued
AirTAC has phased out the MALJ series. You can still order this code here: we ship the direct replacement MBLJ20X150-30, 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
The AirTAC Airtac MALJ20 Adjustable Mini Cylinder MALJ20X150-30 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.
- BoreØ20 mm
- Stroke150 mm
- Adjust window120–150 mm
- Port sizeG1/8
- Rod threadM8×1.25
- StatusDiscontinued → MBLJ20X150-30
- 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
The AirTAC MALJ20X150-30 is a discontinued double-acting, double-rod mini cylinder with a 30 mm rear adjustable stroke. It provides a usable reach window of 120-150 mm.
This 20 mm bore unit uses an M8x1.25 rod, a G1/8 port, and a fixed rubber bumper. The rear adjuster is a travel stop, not a lock, so it cannot hold a load without live air. The original threaded covers and lack of a magnet switch to a riveted body in the replacement.
Airtac MALJ20 Adjustable Mini Cylinder MALJ20X150-30 Technical Specifications
| Model | Airtac MALJ20 Adjustable Mini Cylinder MALJ20X150-30 |
|---|---|
| Series | MALJ adjustable-stroke mini cylinder (discontinued) |
| Replacement | MBLJ20X150-30 |
| 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 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 matches these values.
Model Code: Airtac MALJ20 Adjustable Mini Cylinder MALJ20X150-30
| 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 Is Used
Dispenser Valve Dosing
Tune the rear stopper to restrict the extend stroke, metering out precise two-part epoxy drops in an automated dispensing head.
Leather Skiving Press
Adjust the end position to control the blade contact depth on a leather skiving machine, ensuring consistent thinning without changing the tooling.
Replacing the Airtac MALJ20 Adjustable Mini Cylinder MALJ20X150-30 with MBLJ20X150-30
To replace this MALJ20X150-30, order the direct replacement MBLJ20X150-30, matching the 20 mm bore, 150 mm stroke, 30 mm adjust code, G1/8 port, and FA/LB mounting (no back cover or SDB). Since this SKU lacks the -S magnet, it cannot take a position sensor. The MBLJ upgrade uses CMSG/DMSG/EMSG switches if you add one.
At 150 mm stroke, avoid side-load rod-bending by guiding the load. The rear adjuster sets end position but is not a lock.
Upgrade checklist
- ✓ Order the MBLJ20X150-30 (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 instead of this discontinued model.
Airtac MALJ20 Adjustable Mini Cylinder MALJ20X150-30 FAQ
Yes, the MALJ20X150-30 is discontinued. The direct replacement is the MBLJ20X150-30, which matches the 20 mm bore, 150 mm stroke, 30 mm adjust code, G1/8 port, and FA/LB mounting. The MBLJ upgrades the body to a riveted rolling-packed design.
The 30 mm adjuster creates a usable stroke window of 120-150 mm. The adjuster is a travel stop, not a lock.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
Direct Upgrade
The MBLJ20X150-30 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 MALJ20X150-30 → MBLJ20X150-30)
Tell us the quantity and destination — we quote the direct MBLJ20X150-30 replacement with price, stock and lead time, usually within 7-8 hours.