This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is MBLJ40X25-30-S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the MBLJ40X25-30-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 MALJ40X25-30-S
The AirTAC Airtac MALJ40 Adjustable Mini Cylinder MALJ40X25-30-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 -5 to 25 mm. This model is discontinued — the drop-in replacement is the MBLJ40X25-30-S.
- BoreØ40 mm
- Stroke25 mm
- Adjust window-5–25 mm
- Port sizeG1/4
- Rod threadM12×1.25
- StatusDiscontinued → MBLJ40X25-30-S
About the Airtac MALJ40 Adjustable Mini Cylinder MALJ40X25-30-S
The AirTAC MALJ40X25-30-S is a discontinued double-acting, single-rod adjustable-stroke mini cylinder. It features a 40mm bore, 25mm stroke, and a 30mm rear adjuster that creates a usable end-position window from 0 to 25mm. Because the adjust code (30) exceeds the stroke (25), you can dial the extension all the way back to zero if needed. It delivers 628N push and 528N pull at 0.5MPa. The exact drop-in replacement is the MBLJ40X25-30-S, matching the bore, stroke, force, G1/4 port, and mounting.
This -S SKU includes a magnet for CS1-M or DS1-M switches; the MBLJ replacement upgrades these to CMSG, DMSG, or EMSG sensors. The MALJ uses threaded covers and a fixed rubber bumper, meaning there is no adjustable air cushion. The rear adjuster acts purely as a travel stop to fine-tune reach without external spacers, but it does not hold the load without live air pressure.
Airtac MALJ40 Adjustable Mini Cylinder MALJ40X25-30-S Technical Specifications
| Model | Airtac MALJ40 Adjustable Mini Cylinder MALJ40X25-30-S |
|---|---|
| Series | MALJ adjustable-stroke mini cylinder (discontinued) |
| Replacement | MBLJ40X25-30-S |
| Bore size | Ø40 mm |
| Stroke | 25 mm |
| Adjustable window | -5 – 25 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 MBLJ40X25-30-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 MBLJ40X25-30-S matches these values.
Model Code: Airtac MALJ40 Adjustable Mini Cylinder MALJ40X25-30-S
| MALJ | Adjustable-stroke aluminum mini cylinder, double acting (discontinued). |
|---|---|
| 40 | Bore size in mm (20/25/32/40). |
| ×25 | Nominal stroke length in mm. |
| -30 | Adjustable amount: trim the end to a -5–25 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 MALJ40X25-30-S Is Used
PCB Router Z-Axis Depth Stop
Dial the 0-25mm window to set exact cutting depth on a PCB depaneling router, using the 628N push force to maintain downward pressure without bottoming out the spindle.
Dispenser Nozzle Height Trim
Adjust the rear stopper to fine-tune the nozzle gap above a substrate, preventing crush damage on delicate components while the cylinder retracts fully under air pressure.
Small Press Tonnage Limit
Restrict the forward stroke to avoid over-travel when seating bearings in an aluminum housing, relying on the 40mm bore's 880N at 0.7MPa for reliable press fits.
Replacing the Airtac MALJ40 Adjustable Mini Cylinder MALJ40X25-30-S with MBLJ40X25-30-S
To replace the MALJ40X25-30-S, order the MBLJ40X25-30-S. Confirm the 40mm bore, 25mm stroke, 30mm adjust code, G1/4 port, PT thread, and FA or LB mounting (no back cover or SDB is used). Note that the -S magnet requires switching from CS1-M/DS1-M to CMSG/DMSG/EMSG switches. The rear adjuster sets the end position but is not a lock.
For sizing, stepping down to the 32mm bore drops the force to 402N push at 0.5MPa. Stepping up is not possible as 40mm is the largest MALJ bore, offering the maximum 628N push and 880N at 0.7MPa.
Upgrade checklist
- ✓ Order the MBLJ40X25-30-S (same bore/stroke/adjust)
- ✓ Same -5–25 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 MBLJ40X25-30-S instead of this discontinued model.
Airtac MALJ40 Adjustable Mini Cylinder MALJ40X25-30-S FAQ
Yes, the MALJ40X25-30-S is discontinued. The exact drop-in replacement is the MBLJ40X25-30-S, which matches the 40mm bore, 25mm stroke, 30mm adjuster, G1/4 port, and force. You will only need to upgrade your sensors from CS1-M/DS1-M to CMSG/DMSG/EMSG switches.
The full force set is 628N push and 528N pull at 0.5MPa, 880N push at 0.7MPa, and a maximum of 128 kgf at 1.0MPa. The 30mm adjuster lets you trim up to 30mm at the rear, but since the stroke is only 25mm, it creates a usable window from 0 to 25mm. The adjuster is a travel stop, not a lock, and will not hold a load without live air.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
Drop-in Upgrade
The MBLJ40X25-30-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 MALJ40X25-30-S → MBLJ40X25-30-S)
Tell us the quantity and destination — we quote the drop-in MBLJ40X25-30-S replacement with price, stock and lead time, usually within 7-8 hours.