This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is MBLJ40X125-30-S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the MBLJ40X125-30-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 MALJ40X125-30-S
The AirTAC Airtac MALJ40 Adjustable Mini Cylinder MALJ40X125-30-S 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 95 to 125 mm. This model is discontinued — the drop-in replacement is the MBLJ40X125-30-S.
- BoreØ40 mm
- Stroke125 mm
- Adjust window95–125 mm
- Port sizeG1/4
- Rod threadM12×1.25
- StatusDiscontinued → MBLJ40X125-30-S
About the Airtac MALJ40 Adjustable Mini Cylinder MALJ40X125-30-S
The AirTAC MALJ40X125-30-S is a discontinued 40mm bore, double-acting mini cylinder with a 125mm stroke and a 30mm rear adjustable stop. This yields a usable travel window of 95-125mm. It delivers 628N push and 528N pull at 0.5 MPa. The exact drop-in replacement is the MBLJ40X125-30-S, matching the bore, stroke, G1/4 port, and FA/LB mounting.
Two key upgrade facts apply when moving to the MBLJ. First, the MALJ uses threaded covers, while the MBLJ uses a riveted rolling-packed body for better structural integrity. Second, the -S magnet on this MALJ works with CS1-M/DS1-M switches; the MBLJ replacement requires CMSG/DMSG/EMSG sensors. The rear adjuster sets the end position but does not hold a load without live air. A fixed rubber bumper softens impact, but it is not an adjustable cushion.
Airtac MALJ40 Adjustable Mini Cylinder MALJ40X125-30-S Technical Specifications
| Model | Airtac MALJ40 Adjustable Mini Cylinder MALJ40X125-30-S |
|---|---|
| Series | MALJ adjustable-stroke mini cylinder (discontinued) |
| Replacement | MBLJ40X125-30-S |
| Bore size | Ø40 mm |
| Stroke | 125 mm |
| Adjustable window | 95 – 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 MBLJ40X125-30-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 MBLJ40X125-30-S matches these values.
Model Code: Airtac MALJ40 Adjustable Mini Cylinder MALJ40X125-30-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. |
| -30 | Adjustable amount: trim the end to a 95–125 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 MALJ40X125-30-S Is Used
Injection Mold Ejection
Dial the 95-125mm reach to safely eject plastic parts from varying mold depths without swapping the cylinder.
Printed Circuit Board Stacking
Use the 628N push force to press multi-layer PCBs into test fixtures, fine-tuning the final 30mm of travel.
Packaging Valve Actuation
Adjust the end stop to actuate diverter valves on packaging lines, compensating for different carton thicknesses.
Replacing the Airtac MALJ40 Adjustable Mini Cylinder MALJ40X125-30-S with MBLJ40X125-30-S
To replace the MALJ40X125-30-S, order the exact drop-in MBLJ40X125-30-S. Confirm the 40mm bore, 125mm stroke, 30mm adjust code, G1/4 port, PT thread, and FA/LB mounting (no back cover or SDB). Expect a sensor family change from CS1-M/DS1-M to CMSG/DMSG/EMSG. Remember the adjuster is a travel stop, not a lock; add an external lock for held loads.
For sizing flexibility, the next size down is the 32mm bore (providing 402N push at 0.5 MPa), and the next size up is the 50mm bore (providing 981N push at 0.5 MPa). At 125mm stroke, side-load and rod-bending forces are moderate, so ensure rigid front mounting to prevent binding.
Upgrade checklist
- ✓ Order the MBLJ40X125-30-S (same bore/stroke/adjust)
- ✓ Same 95–125 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 MBLJ40X125-30-S instead of this discontinued model.
Airtac MALJ40 Adjustable Mini Cylinder MALJ40X125-30-S FAQ
Yes, the MALJ40X125-30-S is discontinued. The exact drop-in replacement is the MBLJ40X125-30-S, which matches the 40mm bore, 125mm stroke, 30mm adjuster, G1/4 port, and FA/LB mounting.
The 30mm adjuster creates a usable stroke window of 95-125mm. The full force set is: 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.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
Drop-in Upgrade
The MBLJ40X125-30-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 MALJ40X125-30-S → MBLJ40X125-30-S)
Tell us the quantity and destination — we quote the drop-in MBLJ40X125-30-S replacement with price, stock and lead time, usually within 7-8 hours.