This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is MBLJ40X30-30 — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the MBLJ40X30-30 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 MALJ40X30-30
The AirTAC Airtac MALJ40 Adjustable Mini Cylinder MALJ40X30-30 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 0 to 30 mm. This model is discontinued — the drop-in replacement is the MBLJ40X30-30.
- BoreØ40 mm
- Stroke30 mm
- Adjust window0–30 mm
- Port sizeG1/4
- Rod threadM12×1.25
- StatusDiscontinued → MBLJ40X30-30
About the Airtac MALJ40 Adjustable Mini Cylinder MALJ40X30-30
The AirTAC MALJ40X30-30 is a discontinued double-acting, single-rod mini cylinder with a 40mm bore and 30mm stroke. A rear stopper screw lets you trim the end position by up to 30mm, creating a usable stroke window of 0-30mm. It delivers 628N push and 528N pull force at 0.5 MPa. The exact drop-in replacement is the MBLJ40X30-30, matching the bore, stroke, adjust code, and G1/4 port.
This SKU lacks a -S magnet, so it cannot accept a position sensor. The adjuster is a travel stop, not a lock; it sets the end position but will not hold a load without live air. Upgrading to the MBLJ40X30-30 replaces the MALJ's threaded covers with a riveted rolling-packed body. Both generations use a fixed rubber bumper, meaning there is no adjustable air cushion to tune.
Airtac MALJ40 Adjustable Mini Cylinder MALJ40X30-30 Technical Specifications
| Model | Airtac MALJ40 Adjustable Mini Cylinder MALJ40X30-30 |
|---|---|
| Series | MALJ adjustable-stroke mini cylinder (discontinued) |
| Replacement | MBLJ40X30-30 |
| Bore size | Ø40 mm |
| Stroke | 30 mm |
| Adjustable window | 0 – 30 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 MBLJ40X30-30 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 MBLJ40X30-30 matches these values.
Model Code: Airtac MALJ40 Adjustable Mini Cylinder MALJ40X30-30
| MALJ | Adjustable-stroke aluminum mini cylinder, double acting (discontinued). |
|---|---|
| 40 | Bore size in mm (20/25/32/40). |
| ×30 | Nominal stroke length in mm. |
| -30 | Adjustable amount: trim the end to a 0–30 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 MALJ40X30-30 Is Used
PCB Router Depth Stop
Dial the 0-30mm window to set exact Z-axis plunge depth on a PCB depaneling router, using the 628N push force to drive the bit without crashing the 40mm bore body.
Pneumatic Press Tonnage
Short-stroke crimping of spade terminals in a wire harness line, where the 528N pull force retracts the tooling and the fixed rubber bumper absorbs the 0.7 MPa impact.
Sheet Metal Bender
Actuating a small flap-bending jig for mild steel enclosures, relying on the 128 kgf max thrust at 1.0 MPa to form a precise 25mm bend flange.
Replacing the Airtac MALJ40 Adjustable Mini Cylinder MALJ40X30-30 with MBLJ40X30-30
To replace the MALJ40X30-30, order the exact drop-in MBLJ40X30-30. Confirm the 40mm bore, 30mm stroke, 30mm adjust code, G1/4 port, and PT thread form. Mounting is limited to FA or LB; there is no back cover or SDB option. Because this SKU lacks a magnet, you lose position sensing, but the MBLJ upgrade enables CMSG/DMSG/EMSG sensors if you add the -S option. The rear adjuster is a stop, not a lock; use an external lock for held loads. For sizing flexibility, stepping down to the 32mm bore yields 402N push force at 0.5 MPa, while stepping up is unavailable as 40mm is the largest MALJ bore.
Upgrade checklist
- ✓ Order the MBLJ40X30-30 (same bore/stroke/adjust)
- ✓ Same 0–30 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 MBLJ40X30-30 instead of this discontinued model.
Airtac MALJ40 Adjustable Mini Cylinder MALJ40X30-30 FAQ
Yes, the MALJ40X30-30 is discontinued. The exact drop-in replacement is the MBLJ40X30-30, matching the 40mm bore, 30mm stroke, 30mm adjust code, G1/4 port, and force. The MBLJ upgrades the threaded covers to a riveted rolling-packed body.
It provides 628N push and 528N pull at 0.5 MPa, 880N push at 0.7 MPa, and a maximum of 128 kgf at 1.0 MPa. The 30mm stroke has a 30mm adjust code, yielding a usable stroke window of 0-30mm. The rear adjuster is a travel stop, not a lock, and this no-S SKU cannot take a position sensor.
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The MBLJ40X30-30 replaces this model 1:1.
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MBLJ replacements usually ship in 3-4 days.
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