This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is MBLJ40X500-30 — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the MBLJ40X500-30 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 MALJ40X500-30
The AirTAC Airtac MALJ40 Adjustable Mini Cylinder MALJ40X500-30 is a double-acting aluminum mini cylinder with a rear adjustable-stroke stopper: you can trim up to 30 mm, giving a usable end-position window from 470 to 500 mm. This model is discontinued — the drop-in replacement is the MBLJ40X500-30.
- BoreØ40 mm
- Stroke500 mm
- Adjust window470–500 mm
- Port sizeG1/4
- Rod threadM12×1.25
- StatusDiscontinued → MBLJ40X500-30
About the Airtac MALJ40 Adjustable Mini Cylinder MALJ40X500-30
The AirTAC MALJ40X500-30 is a discontinued double-acting mini cylinder with a rear adjustable stroke stopper. It provides a usable travel window of 470-500 mm by allowing you to trim up to 30 mm off the 500 mm stroke. The 40 mm bore generates 628 N push and 528 N pull force at 0.5 MPa. The exact drop-in replacement is the MBLJ40X500-30, matching the bore, stroke, adjust code, G1/4 port, and mounting.
This SKU has no magnet (-S omitted), so it cannot accept a position sensor. The adjuster functions purely as a travel stop to set the end position; it does not hold a load without live air pressure. Impact is softened by a fixed rubber bumper, meaning there is no adjustable air cushion. Upgrading to the MBLJ moves you from threaded covers to a riveted rolling-packed body, while retaining the same 128 kgf maximum force rating.
Airtac MALJ40 Adjustable Mini Cylinder MALJ40X500-30 Technical Specifications
| Model | Airtac MALJ40 Adjustable Mini Cylinder MALJ40X500-30 |
|---|---|
| Series | MALJ adjustable-stroke mini cylinder (discontinued) |
| Replacement | MBLJ40X500-30 |
| Bore size | Ø40 mm |
| Stroke | 500 mm |
| Adjustable window | 470 – 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 MBLJ40X500-30 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 MBLJ40X500-30 matches these values.
Model Code: Airtac MALJ40 Adjustable Mini Cylinder MALJ40X500-30
| MALJ | Adjustable-stroke aluminum mini cylinder, double acting (discontinued). |
|---|---|
| 40 | Bore size in mm (20/25/32/40). |
| ×500 | Nominal stroke length in mm. |
| -30 | Adjustable amount: trim the end to a 470–500 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 MALJ40X500-30 Is Used
Long-Reach Pallet Push-Off
Dials the exact 470-500 mm end position to push heavy pallets off a conveyor using the full 628 N push force without needing external physical stops.
Large Door Latching Mechanism
Trims the 30 mm rear travel to fine-tune the latch engagement depth on automated machine safety doors, preventing over-travel on the 500 mm extension.
Textile Fabric Stretching
Adjusts the stroke window to maintain precise tension profiles across long textile webs, relying on the fixed rubber bumper to absorb the rapid 800 mm/s peak impacts.
Replacing the Airtac MALJ40 Adjustable Mini Cylinder MALJ40X500-30 with MBLJ40X500-30
To replace this MALJ40X500-30, order the MBLJ40X500-30. Confirm the 40 mm bore, 500 mm stroke, 30 mm adjust code, G1/4 port, PT thread, and FA/LB mounting (there is no back cover or SDB option). Because this SKU lacks the -S magnet, it cannot take a sensor; if you need position sensing on the MBLJ, add the -S code and use CMSG/DMSG/EMSG switches instead of the older CS1-M/DS1-M. The rear adjuster sets the end position but is a stop, not a lock.
When sizing, you can step down to the 32 mm bore (providing 402 N push at 0.5 MPa) if your load is lighter, or step up if you need more force. At 500 mm stroke on a 40 mm bore, the 16 mm rod is highly susceptible to side-load and bending; ensure guide loads are supported externally to prevent premature seal wear and rod damage.
Upgrade checklist
- ✓ Order the MBLJ40X500-30 (same bore/stroke/adjust)
- ✓ Same 470–500 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 MBLJ40X500-30 instead of this discontinued model.
Airtac MALJ40 Adjustable Mini Cylinder MALJ40X500-30 FAQ
Yes, the MALJ40X500-30 is discontinued. The exact drop-in replacement is the MBLJ40X500-30, which matches the 40 mm bore, 500 mm stroke, 30 mm adjust code, G1/4 port, and mounting. The MBLJ upgrades the construction from threaded covers to a riveted rolling-packed body.
This 40 mm bore cylinder provides 628 N push and 528 N pull at 0.5 MPa, 880 N push at 0.7 MPa, and a maximum of 128 kgf at 1.0 MPa. The 30 mm adjust code allows you to trim the 500 mm stroke, creating a usable window of 470-500 mm. Note that this adjuster is a travel stop, not a lock, and this specific SKU lacks a magnet so it cannot accept a position sensor.
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The MBLJ40X500-30 replaces this model 1:1.
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