This model is discontinued
AirTAC has phased out the MALJ series. You can still order this code here: we ship the direct replacement MBLJ20X225-20S, 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 MALJ20X225-20-S
The AirTAC Airtac MALJ20 Adjustable Mini Cylinder MALJ20X225-20-S 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 205 to 225 mm. This model is discontinued — the direct replacement is the MBLJ20X225-20-S.
- BoreØ20 mm
- Stroke225 mm
- Adjust window205–225 mm
- Port sizeG1/8
- Rod threadM8×1.25
- StatusDiscontinued → MBLJ20X225-20-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 MALJ20X225-20-S
The AirTAC MALJ20X225-20-S is a discontinued double-acting, double-rod mini cylinder with a 20mm bore and a 225mm stroke. It features a 20mm rear adjuster, giving a usable end-position window of 205-225mm. The direct replacement is the MBLJ20X225-20-S, matching bore, stroke, force, and G1/8 port.
This -S model includes a magnet for CS1-M or DS1-M switches; the MBLJ20X225-20-S upgrade requires CMSG, DMSG, or EMSG sensors. The MALJ uses threaded covers and a fixed rubber bumper, while the MBLJ uses a riveted rolling-packed body. The rear adjuster is a travel stop, not a lock, meaning it cannot hold a load without live air pressure.
Airtac MALJ20 Adjustable Mini Cylinder MALJ20X225-20-S Technical Specifications
| Model | Airtac MALJ20 Adjustable Mini Cylinder MALJ20X225-20-S |
|---|---|
| Series | MALJ adjustable-stroke mini cylinder (discontinued) |
| Replacement | MBLJ20X225-20-S |
| Bore size | Ø20 mm |
| Stroke | 225 mm |
| Adjustable window | 205 – 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 MBLJ20X225-20-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 MBLJ20X225-20-S matches these values.
Model Code: Airtac MALJ20 Adjustable Mini Cylinder MALJ20X225-20-S
| MALJ | Adjustable-stroke aluminum mini cylinder, double acting (discontinued). |
|---|---|
| 20 | Bore size in mm (20/25/32/40). |
| ×225 | Nominal stroke length in mm. |
| -20 | Adjustable amount: trim the end to a 205–225 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 MALJ20X225-20-S Is Used
PCB Depaneling Saw
Dials the blade retract stroke from 205 to 225mm to clear fixture heights on varying panel sizes without remounting the cylinder.
Textile Loom Guide
Fine-tunes the yarn guide return position by up to 20mm at the rear, matching fabric take-up tension without adding external stops.
Replacing the Airtac MALJ20 Adjustable Mini Cylinder MALJ20X225-20-S with MBLJ20X225-20-S
To replace this MALJ20X225-20-S, order the exact direct replacement MBLJ20X225-20-S. Confirm the 20mm bore, 225mm stroke, 20mm adjust code, PT G1/8 port, M8x1.25 rod thread, and FA/LB mounting (no back cover or SDB). Remember that the adjuster sets the end position but does not hold the load. If you need less force, the neighbouring 20mm bore shares these dimensions but you must step down the bore to a smaller mini cylinder. At 225mm, the 8mm rod is prone to bending under side loads, so ensure guided load alignment to prevent premature seal wear.
Upgrade checklist
- ✓ Order the MBLJ20X225-20-S (same bore/stroke/adjust)
- ✓ Same 205–225 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 MBLJ20X225-20-S instead of this discontinued model.
Airtac MALJ20 Adjustable Mini Cylinder MALJ20X225-20-S FAQ
Yes, the MALJ20X225-20-S is discontinued. The direct replacement is the MBLJ20X225-20-S, which matches the 20mm bore, 225mm stroke, 20mm adjust, force, and G1/8 port. The MBLJ uses a riveted rolling-packed body instead of threaded covers, and its magnet works with CMSG, DMSG, or EMSG switches rather than the older CS1-M or DS1-M.
The 20mm adjuster is a travel stop, not a lock, letting you shorten the end position to create a 205-225mm usable window. It does not hold the load without live air pressure.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
Direct Upgrade
The MBLJ20X225-20-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
Request a Quote (Airtac MALJ20 Adjustable Mini Cylinder MALJ20X225-20-S → MBLJ20X225-20-S)
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