This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is MBLJ40X125-20-S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the MBLJ40X125-20-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 MALJ40X125-20-S
The AirTAC Airtac MALJ40 Adjustable Mini Cylinder MALJ40X125-20-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 105 to 125 mm. This model is discontinued — the drop-in replacement is the MBLJ40X125-20-S.
- BoreØ40 mm
- Stroke125 mm
- Adjust window105–125 mm
- Port sizeG1/4
- Rod threadM12×1.25
- StatusDiscontinued → MBLJ40X125-20-S
About the Airtac MALJ40 Adjustable Mini Cylinder MALJ40X125-20-S
The AirTAC MALJ40X125-20-S is a discontinued 40mm bore, double-acting single-rod mini cylinder with a 125mm stroke and a 20mm rear adjuster. This yields a usable end-position window of 105-125mm. It delivers 628N push and 528N pull at 0.5MPa. The exact drop-in replacement is the MBLJ40X125-20-S, matching the bore, stroke, 1/4in port, and mounting.
This SKU includes a magnet (-S) for CS1-M/DS1-M switches; the MBLJ upgrade shifts to CMSG/DMSG/EMSG sensors. The MALJ uses threaded covers and a fixed rubber bumper, while the MBLJ features a riveted rolling-packed body. The rear adjuster is a travel stop, not a lock, so it cannot hold a load without live air pressure.
Airtac MALJ40 Adjustable Mini Cylinder MALJ40X125-20-S Technical Specifications
| Model | Airtac MALJ40 Adjustable Mini Cylinder MALJ40X125-20-S |
|---|---|
| Series | MALJ adjustable-stroke mini cylinder (discontinued) |
| Replacement | MBLJ40X125-20-S |
| Bore size | Ø40 mm |
| Stroke | 125 mm |
| Adjustable window | 105 – 125 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 MBLJ40X125-20-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 MBLJ40X125-20-S matches these values.
Model Code: Airtac MALJ40 Adjustable Mini Cylinder MALJ40X125-20-S
| MALJ | Adjustable-stroke aluminum mini cylinder, double acting (discontinued). |
|---|---|
| 40 | Bore size in mm (20/25/32/40). |
| ×125 | Nominal stroke length in mm. |
| -20 | Adjustable amount: trim the end to a 105–125 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 MALJ40X125-20-S Is Used
Press Brake Backgauge
Dial the 105-125mm stroke window to set the exact backstop depth for sheet metal bending, using the 628N push force to hold the gauge firmly.
PCB Routing Depth Stop
Trim the 125mm stroke by up to 20mm to tune the end position for a routing spindle, preventing board damage without adding external stops.
Packaging Flap Folder
Adjust the rear travel to 105mm for shorter carton flaps while retaining the full 125mm for larger boxes, keeping the 528N pull consistent.
Replacing the Airtac MALJ40 Adjustable Mini Cylinder MALJ40X125-20-S with MBLJ40X125-20-S
Replace the MALJ40X125-20-S with the drop-in MBLJ40X125-20-S. Confirm the 40mm bore, 125mm stroke, 20mm adjust code, G1/4 port, PT thread, and FA/LB mounting (no back cover or SDB). The -S magnet changes sensor families from CS1-M/DS1-M to CMSG/DMSG/EMSG. The adjuster is a stop, not a lock. If sizing down, the 32mm bore yields 402N push at 0.5MPa; if sizing up, there is no larger MALJ bore, so consider an ISO 15552 cylinder for higher force.
Upgrade checklist
- ✓ Order the MBLJ40X125-20-S (same bore/stroke/adjust)
- ✓ Same 105–125 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 MBLJ40X125-20-S instead of this discontinued model.
Airtac MALJ40 Adjustable Mini Cylinder MALJ40X125-20-S FAQ
Yes, the MALJ40X125-20-S is discontinued. The exact drop-in replacement is the MBLJ40X125-20-S, matching the 40mm bore, 125mm stroke, 20mm adjust code, G1/4 port, and mounting. The MBLJ upgrades the body to a riveted rolling-packed design and the sensor family to CMSG/DMSG/EMSG.
The 40mm bore provides 628N push and 528N pull at 0.5MPa, 880N push at 0.7MPa, and 128kgf max at 1.0MPa. The 20mm adjuster is a travel stop that lets you trim the end position, creating a 105-125mm usable window. It is not a lock and cannot hold a load without air.
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Drop-in Upgrade
The MBLJ40X125-20-S replaces this model 1:1.
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MBLJ replacements usually ship in 3-4 days.
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