This model is discontinued
AirTAC has phased out the MALJ series. You can still order this code here: we ship the direct replacement MBLJ20X225-40, 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 MALJ20X225-40
The AirTAC Airtac MALJ20 Adjustable Mini Cylinder MALJ20X225-40 is a double-acting aluminum mini cylinder with a rear adjustable-stroke stopper: you can trim up to 40 mm, giving a usable end-position window from 185 to 225 mm. This model is discontinued — the direct replacement is the MBLJ20X225-40.
- BoreØ20 mm
- Stroke225 mm
- Adjust window185–225 mm
- Port sizeG1/8
- Rod threadM8×1.25
- StatusDiscontinued → MBLJ20X225-40
- 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 MALJ20X225-40
The AirTAC MALJ20X225-40 is a discontinued adjustable-stroke mini cylinder. The 40 mm adjust code lets you trim the rear travel stop, creating a usable end-position window of 185-225 mm. The direct replacement is the MBLJ20X225-40, matching the 20 mm bore, 225 mm stroke, G1/8 port, and mounting footprint.
This SKU lacks the -S magnet, so it cannot accept a position sensor. It uses a fixed rubber bumper, meaning the adjustable stroke sets the end position but is not an adjustable cushion. The adjuster is a travel stop, not a lock, so it will not hold a load without live air. Upgrading to the MBLJ20X225-40 replaces the threaded covers with a riveted rolling-packed body.
Airtac MALJ20 Adjustable Mini Cylinder MALJ20X225-40 Technical Specifications
| Model | Airtac MALJ20 Adjustable Mini Cylinder MALJ20X225-40 |
|---|---|
| Series | MALJ adjustable-stroke mini cylinder (discontinued) |
| Replacement | MBLJ20X225-40 |
| Bore size | Ø20 mm |
| Stroke | 225 mm |
| Adjustable window | 185 – 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 MBLJ20X225-40 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 MBLJ20X225-40 matches these values.
Model Code: Airtac MALJ20 Adjustable Mini Cylinder MALJ20X225-40
| MALJ | Adjustable-stroke aluminum mini cylinder, double acting (discontinued). |
|---|---|
| 20 | Bore size in mm (20/25/32/40). |
| ×225 | Nominal stroke length in mm. |
| -40 | Adjustable amount: trim the end to a 185–225 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 MALJ20X225-40 Is Used
Dispenser Valve Probe
Trim the rear stop up to 40 mm to fine-tune the touch-down height of a fluid dispenser valve, preventing nozzle crash on varying substrate heights.
Small Parts Ejector
Adjust the extension length on a small plastic parts ejector, using the fixed rubber bumper to soften the end impact before the air retracts the 8 mm rod.
Replacing the Airtac MALJ20 Adjustable Mini Cylinder MALJ20X225-40 with MBLJ20X225-40
To replace the MALJ20X225-40, order the exact direct replacement MBLJ20X225-40. Confirm the 20 mm bore, 225 mm stroke, 40 mm adjust code, PT G1/8 port, and FA/LB mounting (no back cover or SDB). Because this SKU has no -S magnet, it cannot take a sensor; the MBLJ upgrade moves to the CMSG / DMSG / EMSG switch family if you add an -S version. Remember the rear adjuster is a stop, not a lock.
At 225 mm stroke, minimize side-load to prevent rod bending.
Upgrade checklist
- ✓ Order the MBLJ20X225-40 (same bore/stroke/adjust)
- ✓ Same 185–225 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 MBLJ20X225-40 instead of this discontinued model.
Airtac MALJ20 Adjustable Mini Cylinder MALJ20X225-40 FAQ
Yes, the MALJ20X225-40 is discontinued. The direct replacement is the MBLJ20X225-40, which matches the 20 mm bore, 225 mm stroke, 40 mm adjust code, and G1/8 port. The MBLJ upgrades the threaded covers to a riveted rolling-packed body.
Because this specific SKU lacks the -S magnet, it cannot accept a position sensor. The adjuster is a travel stop, not a lock.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
Direct Upgrade
The MBLJ20X225-40 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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