This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is MBLJ40X500-100 — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the MBLJ40X500-100 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 MALJ40X500-100
The AirTAC Airtac MALJ40 Adjustable Mini Cylinder MALJ40X500-100 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 400 to 500 mm. This model is discontinued — the drop-in replacement is the MBLJ40X500-100.
- BoreØ40 mm
- Stroke500 mm
- Adjust window400–500 mm
- Port sizeG1/4
- Rod threadM12×1.25
- StatusDiscontinued → MBLJ40X500-100
About the Airtac MALJ40 Adjustable Mini Cylinder MALJ40X500-100
The AirTAC MALJ40X500-100 is a discontinued double-acting, single-rod adjustable-stroke cylinder. It features a 40mm bore, 500mm stroke, and a rear screw stopper that allows you to trim up to 100mm, creating a usable stroke window of 400-500mm. Delivering 628N push and 528N pull force at 0.5 MPa, it uses a G1/4 port and a Ø16mm carbon-steel rod with a 20um hard chrome plating. The exact drop-in replacement is the MBLJ40X500-100, matching bore, stroke, force, and mounting.
This SKU lacks a -S magnet, meaning it cannot accept a position sensor. The rear adjuster is a travel stop, not a lock; it sets the end position but will not hold a load without live air. The fixed rubber bumper softens end impact but provides no adjustable cushioning. Note that the original MALJ uses threaded covers and older switches, while the MBLJ replacement features a riveted rolling-packed body and modern CMSG/DMSG/EMSG sensors if a magnet is specified.
Airtac MALJ40 Adjustable Mini Cylinder MALJ40X500-100 Technical Specifications
| Model | Airtac MALJ40 Adjustable Mini Cylinder MALJ40X500-100 |
|---|---|
| Series | MALJ adjustable-stroke mini cylinder (discontinued) |
| Replacement | MBLJ40X500-100 |
| Bore size | Ø40 mm |
| Stroke | 500 mm |
| Adjustable window | 400 – 500 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 MBLJ40X500-100 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 MBLJ40X500-100 matches these values.
Model Code: Airtac MALJ40 Adjustable Mini Cylinder MALJ40X500-100
| MALJ | Adjustable-stroke aluminum mini cylinder, double acting (discontinued). |
|---|---|
| 40 | Bore size in mm (20/25/32/40). |
| ×500 | Nominal stroke length in mm. |
| -100 | Adjustable amount: trim the end to a 400–500 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 MALJ40X500-100 Is Used
Injection Mold Ejection
Dial the 400-500mm reach to safely eject deep-cavity parts without repositioning the entire mold plate, using the 628N push force to clear the tooling.
PCB Conveyor Routing
Trim the 100mm rear stop to match varying board widths, guiding pallets through a wave soldering line while avoiding hard mechanical stops.
Long-Stroke Pallet Pusher
Move heavy workpieces between CNC machining centers, using the G1/4 port for high flow and the 880N push at 0.7 MPa to overcome sliding friction.
Replacing the Airtac MALJ40 Adjustable Mini Cylinder MALJ40X500-100 with MBLJ40X500-100
To replace the MALJ40X500-100, order the MBLJ40X500-100. Confirm the 40mm bore, 500mm stroke, 100mm adjust code, G1/4 port, PT thread, and FA/LB mounting (no back cover or SDB is used). Because this SKU lacks the -S magnet, it cannot take a sensor; if you need sensing on the MBLJ, add the -S code to switch to the CMSG/DMSG/EMSG family. The adjuster is a travel stop, not a lock. If sizing down, the 32mm bore offers 402N push at 0.5 MPa; if sizing up, 40mm is the largest available MALJ bore, delivering 880N push at 0.7 MPa and 128kgf max at 1.0 MPa.
With a 500mm stroke, minimize side-load on the rod to prevent premature seal wear and bending. The fixed rubber bumper absorbs end-of-stroke impact, but for heavy loads, verify the kinetic energy is within limits.
Upgrade checklist
- ✓ Order the MBLJ40X500-100 (same bore/stroke/adjust)
- ✓ Same 400–500 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 MBLJ40X500-100 instead of this discontinued model.
Airtac MALJ40 Adjustable Mini Cylinder MALJ40X500-100 FAQ
Yes, the MALJ40X500-100 is discontinued. The exact drop-in replacement is the MBLJ40X500-100, which matches the 40mm bore, 500mm stroke, 100mm adjust code, G1/4 port, and force. The MBLJ upgrades the body to a riveted rolling-packed design.
It delivers 628N push and 528N pull at 0.5 MPa, 880N push at 0.7 MPa, and a maximum force of 128kgf at 1.0 MPa. The 500mm stroke with a 100mm adjuster gives a usable window of 400-500mm. This SKU has no magnet (-S), so it cannot accept a position sensor.
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The MBLJ40X500-100 replaces this model 1:1.
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