This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is MBLJ40X300-75-S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the MBLJ40X300-75-S in place of this model. 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 MALJ40X300-75-S
The AirTAC Airtac MALJ40 Adjustable Mini Cylinder MALJ40X300-75-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 225 to 300 mm. This model is discontinued — the drop-in replacement is the MBLJ40X300-75-S.
- BoreØ40 mm
- Stroke300 mm
- Adjust window225–300 mm
- Port sizeG1/4
- Rod threadM12×1.25
- StatusDiscontinued → MBLJ40X300-75-S
About the Airtac MALJ40 Adjustable Mini Cylinder MALJ40X300-75-S
The AirTAC MALJ40X300-75-S is a discontinued 40mm bore, double-acting adjustable-stroke mini cylinder. It provides a usable stroke window of 225-300mm via a 75mm rear travel stopper, delivering 628N push and 528N pull at 0.5MPa. The exact drop-in replacement is the MBLJ40X300-75-S, matching the bore, stroke, G1/4 port, and force.
This -S magnet SKU uses older CS1-M/DS1-M switches, while the MBLJ upgrade uses CMSG/DMSG/EMSG sensors. The original MALJ features threaded covers, whereas the MBLJ uses a riveted rolling-packed body. The adjuster sets the end position but does not hold the load without live air, and a fixed rubber bumper softens the end impact without providing adjustable cushioning.
Airtac MALJ40 Adjustable Mini Cylinder MALJ40X300-75-S Technical Specifications
| Model | Airtac MALJ40 Adjustable Mini Cylinder MALJ40X300-75-S |
|---|---|
| Series | MALJ adjustable-stroke mini cylinder (discontinued) |
| Replacement | MBLJ40X300-75-S |
| Bore size | Ø40 mm |
| Stroke | 300 mm |
| Adjustable window | 225 – 300 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 MBLJ40X300-75-S carries the same ratings.
Theoretical Output Force (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 kgf | |
Single-rod force, same as a standard MAL of this bore. The MBLJ40X300-75-S matches these values.
Model Code: Airtac MALJ40 Adjustable Mini Cylinder MALJ40X300-75-S
| MALJ | Adjustable-stroke aluminum mini cylinder, double acting (discontinued). |
|---|---|
| 40 | Bore size in mm (20/25/32/40). |
| ×300 | Nominal stroke length in mm. |
| -75 | Adjustable amount: trim the end to a 225–300 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 MALJ40X300-75-S Is Used
PCB Router Z-Axis Depth
Dial the 225-300mm reach on a PCB depaneling router to set the exact cutting depth without adding external physical stops to the spindle carriage.
Long-Stroke Pallet Squaring
Fine-tune the end position on a packaging conveyor pallet squaring station, using the 628N push force to align heavy boxes precisely.
Injection Mold Ejector
Adjust the 75mm travel window on an injection molding ejector to clear varying mold back-plates, preventing over-travel on the 16mm rod.
Replacing the Airtac MALJ40 Adjustable Mini Cylinder MALJ40X300-75-S with MBLJ40X300-75-S
To replace the MALJ40X300-75-S, specify the MBLJ40X300-75-S. Confirm the 40mm bore, 300mm stroke, 75mm adjust code, G1/4 port, PT threads, and FA/LB mounting (no back cover or SDB). The -S magnet means switching from CS1-M/DS1-M to CMSG/DMSG/EMSG sensors. The rear adjuster is a travel stop, not a lock. If you need to step down, the 32mm bore yields 402N push at 0.5MPa; stepping up is not possible as 40mm is the largest MALJ size. For this 300mm stroke, use a guide rail to prevent rod bending and side-load damage.
Upgrade checklist
- ✓ Order the MBLJ40X300-75-S (same bore/stroke/adjust)
- ✓ Same 225–300 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 MBLJ40X300-75-S instead of this discontinued model.
Airtac MALJ40 Adjustable Mini Cylinder MALJ40X300-75-S FAQ
Yes, the MALJ40X300-75-S is discontinued. The exact drop-in replacement is the MBLJ40X300-75-S, which matches the 40mm bore, 300mm stroke, 75mm adjuster, G1/4 port, and FA/LB mounting. You will only need to update your sensors from the old CS1-M/DS1-M to the new CMSG/DMSG/EMSG family.
This 40mm bore cylinder delivers 628N push and 528N pull at 0.5MPa, 880N push at 0.7MPa, and a maximum force of 128kgf at 1.0MPa. The 75mm rear adjuster creates a usable stroke window from 225mm to 300mm. The adjuster acts only as a travel stop and does not hold the load without air pressure.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
Drop-in Upgrade
The MBLJ40X300-75-S replaces this model 1:1.
Fast Dispatch
MBLJ replacements usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Recommended AirTAC MBLJ Replacements
Request a Quote (Airtac MALJ40 Adjustable Mini Cylinder MALJ40X300-75-S → MBLJ40X300-75-S)
Tell us the quantity and destination — we quote the drop-in MBLJ40X300-75-S replacement with price, stock and lead time, usually within 7-8 hours.