This model is discontinued
AirTAC has phased out the MALJ series. You can still order this code here: we ship the direct replacement MBLJ40X60-20-S, 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 MALJ40 Adjustable Mini Cylinder MALJ40X60-20-S
The AirTAC Airtac MALJ40 Adjustable Mini Cylinder MALJ40X60-20-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 40 to 60 mm. This model is discontinued — the direct replacement is the MBLJ40X60-20-S.
- BoreØ40 mm
- Stroke60 mm
- Adjust window40–60 mm
- Port sizeG1/4
- Rod threadM12×1.25
- StatusDiscontinued → MBLJ40X60-20-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 MALJ40 Adjustable Mini Cylinder MALJ40X60-20-S
The AirTAC MALJ40X60-20-S is a discontinued 40mm bore adjustable-stroke mini cylinder. It is double-acting with a double rod and a rear travel stopper that lets you trim the end position by up to 20mm, yielding a usable stroke window of 40-60mm. The direct replacement is the MBLJ40X60-20-S, matching the bore, stroke, adjust code, and G1/4 port.
This SKU includes a -S magnet for position sensing. The legacy MALJ uses CS1-M or DS1-M reed switches, while the MBLJ upgrade uses CMSG, DMSG, or EMSG sensors. The older MALJ body relies on threaded covers, whereas the current MBLJ features a riveted rolling-packed body for higher structural integrity. Both generations use a fixed rubber bumper to soften end-of-travel impact and lack an adjustable air cushion.
Airtac MALJ40 Adjustable Mini Cylinder MALJ40X60-20-S Technical Specifications
| Model | Airtac MALJ40 Adjustable Mini Cylinder MALJ40X60-20-S |
|---|---|
| Series | MALJ adjustable-stroke mini cylinder (discontinued) |
| Replacement | MBLJ40X60-20-S |
| Bore size | Ø40 mm |
| Stroke | 60 mm |
| Adjustable window | 40 – 60 mm |
| Acting type | Double acting, adjustable stroke |
| Port size | G1/4 |
| Rod thread | M12×1.25 |
| 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 500 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 MBLJ40X60-20-S carries the same ratings.
Theoretical Output Force (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 528 N | 528 N |
| 0.7 MPa | 739 N | — |
| Max (@1.0 MPa) | 108 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 MBLJ40X60-20-S matches these values.
Model Code: Airtac MALJ40 Adjustable Mini Cylinder MALJ40X60-20-S
| MALJ | Adjustable-stroke aluminum mini cylinder, double acting (discontinued). |
|---|---|
| 40 | Bore size in mm (20/25/32/40). |
| ×60 | Nominal stroke length in mm. |
| -20 | Adjustable amount: trim the end to a 40–60 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 MALJ40 Adjustable Mini Cylinder MALJ40X60-20-S Is Used
Plastic Injection Mold Breaker
Fine-tune the rear stopper to 50mm to knock injection-molded parts off the tool face consistently, avoiding the need to swap physical spacers for each mold run.
Aluminum Extrusion Press
Set the end position to 40mm for a light squaring operation on soft aluminum profiles, using the fixed rubber bumper to absorb the 528N pull impact.
Replacing the Airtac MALJ40 Adjustable Mini Cylinder MALJ40X60-20-S with MBLJ40X60-20-S
To replace the MALJ40X60-20-S, order the MBLJ40X60-20-S. Confirm the 40mm bore, 60mm stroke, 20mm adjust code, PT G1/4 port, M12x1.25 rod thread, and FA or LB mounting (no back cover or SDB is used). Remember the rear adjuster is a travel stop, not a lock; it sets the end position but will not hold a load without live air pressure. If you need to hold a load mechanically, add an external locking device.
Because this is the largest MALJ bore (40mm), 32mm is your only standard downward neighbor. For any stroke approaching 300mm or more, support the rod to prevent bending under side loads.
Upgrade checklist
- ✓ Order the MBLJ40X60-20-S (same bore/stroke/adjust)
- ✓ Same 40–60 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 MBLJ40X60-20-S instead of this discontinued model.
Airtac MALJ40 Adjustable Mini Cylinder MALJ40X60-20-S FAQ
Yes, the MALJ40X60-20-S is discontinued. The direct replacement is the MBLJ40X60-20-S, which matches the 40mm bore, 60mm stroke, 20mm adjust code, and G1/4 port. You will need to upgrade your position sensors, as the legacy CS1-M/DS1-M switches are replaced by CMSG/DMSG/EMSG sensors on the MBLJ.
The 20mm adjuster lets you trim the rear travel stop, creating a usable stroke window of 40-60mm. The adjuster is a travel stop, not a lock.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
Direct Upgrade
The MBLJ40X60-20-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.
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