This model is discontinued
AirTAC has phased out the MALJ series. You can still order this code here: we ship the direct replacement MBLJ20X225-75S, 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 MALJ20X225-75-S
The AirTAC MALJ20 Adjustable Mini Cylinder MALJ20X225-75-S is a double-acting aluminum mini cylinder with a rear adjustable-stroke stopper: you can trim up to 75 mm, giving a usable end-position window from 150 to 225 mm. This model is discontinued — the direct replacement is the MBLJ20X225-75-S.
- BoreØ20 mm
- Stroke225 mm
- Adjust window150–225 mm
- Port sizeG1/8
- Rod threadM8×1.25
- StatusDiscontinued → MBLJ20X225-75-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 MALJ20X225-75-S
The AirTAC MALJ20X225-75-S is a discontinued double-acting mini cylinder with a rear travel stop. The direct replacement is the MBLJ20X225-75-S.
This 20 mm bore, G1/8 ported unit trims up to 75 mm, yielding a 150-225 mm usable window. The adjuster is a travel stop, not a lock. The original threaded covers and CS1-M/DS1-M switches upgrade to a riveted body and CMSG/DMSG/EMSG sensors.
Airtac MALJ20 Adjustable Mini Cylinder MALJ20X225-75-S Technical Specifications
| Model | Airtac MALJ20 Adjustable Mini Cylinder MALJ20X225-75-S |
|---|---|
| Series | MALJ adjustable-stroke mini cylinder (discontinued) |
| Replacement | MBLJ20X225-75-S |
| Bore size | Ø20 mm |
| Stroke | 225 mm |
| Adjustable window | 150 – 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 MBLJ20X225-75-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 MBLJ20X225-75-S matches these values.
Model Code: Airtac MALJ20 Adjustable Mini Cylinder MALJ20X225-75-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. |
| -75 | Adjustable amount: trim the end to a 150–225 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 MALJ20X225-75-S Is Used
Wire Termination Press
Fine-tune the crimp height on an automated wire harness machine by adjusting the rear stop, ensuring the 8 mm rod hits the terminal precisely without bottoming out.
Label Applicator Drum
Adjust the stroke window on a rotary labeling machine to accommodate different bottle diameters, relying on the fixed rubber bumper to soften the end impact.
Replacing the Airtac MALJ20 Adjustable Mini Cylinder MALJ20X225-75-S with MBLJ20X225-75-S
Replace with the MBLJ20X225-75-S, confirming the 20 mm bore, 225 mm stroke, 75 mm adjust code, G1/8 port, M8x1.25 rod thread, and FA/LB mounting (no back cover or SDB). The -S magnet changes from CS1-M/DS1-M to CMSG/DMSG/EMSG sensors. The adjuster sets end position but does not hold load without air.
Stepping up to the 25 mm bore yields 245 N, while stepping down is unavailable as 20 mm is the smallest. At 225 mm stroke, the 8 mm rod is vulnerable to side-load bending; ensure rigid guidance.
Upgrade checklist
- ✓ Order the MBLJ20X225-75-S (same bore/stroke/adjust)
- ✓ Same 150–225 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 MBLJ20X225-75-S instead of this discontinued model.
Airtac MALJ20 Adjustable Mini Cylinder MALJ20X225-75-S FAQ
Yes, the MALJ20X225-75-S is discontinued. The direct replacement is the MBLJ20X225-75-S, which matches the 20 mm bore, 225 mm stroke, 75 mm adjust code, and G1/8 port. The MBLJ upgrades the body to a riveted rolling-packed design and uses CMSG/DMSG/EMSG switches instead of the older CS1-M/DS1-M.
The 75 mm adjust code allows you to trim the rear position, creating a usable stroke window of 150 to 225 mm. The adjuster is a travel stop, not a lock.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
Direct Upgrade
The MBLJ20X225-75-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.
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