This model is discontinued
AirTAC has phased out the MALJ series. You can still order this code here: we ship the direct replacement MBLJ20X225-30, 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 MALJ20X225-30
The AirTAC Airtac MALJ20 Adjustable Mini Cylinder MALJ20X225-30 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 195 to 225 mm. This model is discontinued — the direct replacement is the MBLJ20X225-30.
- BoreØ20 mm
- Stroke225 mm
- Adjust window195–225 mm
- Port sizeG1/8
- Rod threadM8×1.25
- StatusDiscontinued → MBLJ20X225-30
- 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 MALJ20X225-30
The AirTAC MALJ20X225-30 is a discontinued double-acting double-rod mini cylinder. The direct replacement is the MBLJ20X225-30, matching the 20mm bore, 225mm stroke, G1/8 port and 30mm adjust code. The rear stopper yields a usable stroke window of 195-225mm.
The adjuster is a travel stop, not a lock; it cannot hold a load without live air. This unit lacks a magnet and cannot take a position sensor. It uses a fixed rubber bumper, not an adjustable cushion. The original MALJ has threaded covers and uses CS1-M/DS1-M switches, while the MBLJ upgrade features a riveted rolling-packed body and CMSG/DMSG/EMSG sensors.
Airtac MALJ20 Adjustable Mini Cylinder MALJ20X225-30 Technical Specifications
| Model | Airtac MALJ20 Adjustable Mini Cylinder MALJ20X225-30 |
|---|---|
| Series | MALJ adjustable-stroke mini cylinder (discontinued) |
| Replacement | MBLJ20X225-30 |
| Bore size | Ø20 mm |
| Stroke | 225 mm |
| Adjustable window | 195 – 225 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 MBLJ20X225-30 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 MBLJ20X225-30 matches these values.
Model Code: Airtac MALJ20 Adjustable Mini Cylinder MALJ20X225-30
| MALJ | Adjustable-stroke aluminum mini cylinder, double acting (discontinued). |
|---|---|
| 20 | Bore size in mm (20/25/32/40). |
| ×225 | Nominal stroke length in mm. |
| -30 | Adjustable amount: trim the end to a 195–225 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 MALJ20X225-30 Is Used
Wire Cut-to-Length Gauge
Fine-tune the end position on an automated wire cutter, trimming 30mm off the 225mm stroke to hit changing length specs without reprinting mounts.
Light-Contact Forming Press
Use the 132N pull at 0.5MPa to retract a light-contact forming pin in a sheet-metal bender, relying on the fixed rubber bumper to soften the end impact.
Replacing the Airtac MALJ20 Adjustable Mini Cylinder MALJ20X225-30 with MBLJ20X225-30
To replace the MALJ20X225-30, order the direct replacement MBLJ20X225-30. Confirm the 20mm bore, 225mm stroke, 30mm adjust code, G1/8 PT port, M8x1.25 rod thread, and FA/LB mounting (no back cover or SDB). Because this SKU has no -S magnet, it cannot accept a sensor. The MBLJ upgrade changes the switch family to CMSG/DMSG/EMSG.
At 225mm, the 8mm rod is vulnerable to side-load bending; keep the load axially aligned or add external guides.
Upgrade checklist
- ✓ Order the MBLJ20X225-30 (same bore/stroke/adjust)
- ✓ Same 195–225 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 MBLJ20X225-30 instead of this discontinued model.
Airtac MALJ20 Adjustable Mini Cylinder MALJ20X225-30 FAQ
Yes, the MALJ20X225-30 is discontinued. The direct replacement is the MBLJ20X225-30, matching the 20mm bore, 225mm stroke, 30mm adjust code, and G1/8 port. The MBLJ upgrades the body to a riveted rolling-packed design and changes the sensor family from CS1-M/DS1-M to CMSG/DMSG/EMSG.
The -30 adjust code lets you trim up to 30mm at the rear, creating a usable stroke window of 195-225mm. The adjuster is a travel stop, not a lock.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
Direct Upgrade
The MBLJ20X225-30 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 MALJ20X225-30 → MBLJ20X225-30)
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