This model is discontinued
AirTAC has phased out the MALJ series. You can still order this code here: we ship the direct replacement MBLJ20X225-100S, 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 MALJ20X225-100-S
The AirTAC Airtac MALJ20 Adjustable Mini Cylinder MALJ20X225-100-S is a double-acting aluminum mini cylinder with a rear adjustable-stroke stopper: you can trim up to 100 mm, giving a usable end-position window from 125 to 225 mm. This model is discontinued — the direct replacement is the MBLJ20X225-100-S.
- BoreØ20 mm
- Stroke225 mm
- Adjust window125–225 mm
- Port sizeG1/8
- Rod threadM8×1.25
- StatusDiscontinued → MBLJ20X225-100-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 MALJ20X225-100-S
The AirTAC MALJ20X225-100-S is a discontinued double-acting mini cylinder with a rear adjustable stroke. The 100mm adjuster creates a usable reach window of 125-225mm. The direct replacement is the MBLJ20X225-100-S, matching the 20mm bore, G1/8 port, and force.
This -S magnet SKU uses the older CS1-M / DS1-M switches, while the MBLJ replacement uses CMSG / DMSG / EMSG sensors. The original MALJ has threaded covers; the MBLJ uses a riveted rolling-packed body. The rear adjuster is a travel stop, not a lock; it sets the end position but cannot hold a load without live air. Impact is softened by a fixed rubber bumper, as there is no air cushion.
Airtac MALJ20 Adjustable Mini Cylinder MALJ20X225-100-S Technical Specifications
| Model | Airtac MALJ20 Adjustable Mini Cylinder MALJ20X225-100-S |
|---|---|
| Series | MALJ adjustable-stroke mini cylinder (discontinued) |
| Replacement | MBLJ20X225-100-S |
| Bore size | Ø20 mm |
| Stroke | 225 mm |
| Adjustable window | 125 – 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 MBLJ20X225-100-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 MBLJ20X225-100-S matches these values.
Model Code: Airtac MALJ20 Adjustable Mini Cylinder MALJ20X225-100-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. |
| -100 | Adjustable amount: trim the end to a 125–225 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 MALJ20X225-100-S Is Used
Carton Flap Folder
Adjust the end position on the fly to fold varying box heights on a packaging line, relying on the fixed rubber bumper to absorb the stroke impact.
Textile Fabric Tensioner
Trim the 100mm rear stop to fine-tune fabric web tension dynamically, preventing tears while the 8mm carbon-steel rod cycles continuously.
Replacing the Airtac MALJ20 Adjustable Mini Cylinder MALJ20X225-100-S with MBLJ20X225-100-S
To replace the MALJ20X225-100-S with the MBLJ20X225-100-S, confirm the 20mm bore, 225mm stroke, 100mm adjust code, PT G1/8 port, and M8x1.25 rod thread. Mounting is Basic, FA, or LB only; there is no back cover or SDB option. Because this stroke is 225mm, be mindful of rod bending under heavy side loads. Note that the -S magnet requires a sensor family change from CS1-M/DS1-M to CMSG/DMSG/EMSG.
Upgrade checklist
- ✓ Order the MBLJ20X225-100-S (same bore/stroke/adjust)
- ✓ Same 125–225 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 MBLJ20X225-100-S instead of this discontinued model.
Airtac MALJ20 Adjustable Mini Cylinder MALJ20X225-100-S FAQ
Yes, the MALJ20X225-100-S is discontinued. The direct replacement is the MBLJ20X225-100-S, which matches the 20mm bore, 225mm stroke, 100mm adjust code, G1/8 port, and mounting. You will need to upgrade your sensors from CS1-M / DS1-M to CMSG / DMSG / EMSG.
The usable adjustable window is 125-225mm, created by trimming up to 100mm at the rear. The adjuster is a travel stop, not a lock.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
Direct Upgrade
The MBLJ20X225-100-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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