This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is MBLJ40X275-30-S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the MBLJ40X275-30-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 MALJ40X275-30-S
The AirTAC Airtac MALJ40 Adjustable Mini Cylinder MALJ40X275-30-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 245 to 275 mm. This model is discontinued — the drop-in replacement is the MBLJ40X275-30-S.
- BoreØ40 mm
- Stroke275 mm
- Adjust window245–275 mm
- Port sizeG1/4
- Rod threadM12×1.25
- StatusDiscontinued → MBLJ40X275-30-S
About the Airtac MALJ40 Adjustable Mini Cylinder MALJ40X275-30-S
The AirTAC MALJ40X275-30-S is a discontinued double-acting mini cylinder with a 40mm bore and a 275mm stroke. It provides a usable extension window of 245-275mm via a 30mm rear travel stopper, delivering 628N push and 528N pull force at 0.5MPa. The drop-in replacement is the MBLJ40X275-30-S, matching the bore, stroke, force, and G1/4 port.
This -S SKU uses the older CS1-M/DS1-M reed switches, whereas the MBLJ replacement upgrades to CMSG/DMSG/EMSG sensors. The MALJ features threaded covers, while the MBLJ uses a riveted rolling-packed body. The rear adjuster sets the end position but does not hold the load without live air, and end impact is softened only by a fixed rubber bumper.
Airtac MALJ40 Adjustable Mini Cylinder MALJ40X275-30-S Technical Specifications
| Model | Airtac MALJ40 Adjustable Mini Cylinder MALJ40X275-30-S |
|---|---|
| Series | MALJ adjustable-stroke mini cylinder (discontinued) |
| Replacement | MBLJ40X275-30-S |
| Bore size | Ø40 mm |
| Stroke | 275 mm |
| Adjustable window | 245 – 275 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 MBLJ40X275-30-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 MBLJ40X275-30-S matches these values.
Model Code: Airtac MALJ40 Adjustable Mini Cylinder MALJ40X275-30-S
| MALJ | Adjustable-stroke aluminum mini cylinder, double acting (discontinued). |
|---|---|
| 40 | Bore size in mm (20/25/32/40). |
| ×275 | Nominal stroke length in mm. |
| -30 | Adjustable amount: trim the end to a 245–275 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 MALJ40X275-30-S Is Used
PCB Router Z-Axis Depth Stop
Dial in a 245-275mm travel window to set router depth on a PCB depaneling machine, using the 628N push force to drive the spindle carriage without bottoming out the stroke.
Carton Flap Folder Tensioner
Fine-tune the 275mm end position on a packaging line folder, ensuring the 528N pull force cleanly tucks flaps without crushing the corrugated board.
Textile Fabric Edge Guide
Trim the 30mm rear stopper to align fabric edges on a loom beam, leveraging the G1/4 port's high flow to maintain rapid 30-800mm/s cycling.
Replacing the Airtac MALJ40 Adjustable Mini Cylinder MALJ40X275-30-S with MBLJ40X275-30-S
To replace the MALJ40X275-30-S with the MBLJ40X275-30-S, confirm the 40mm bore, 275mm stroke, 30mm adjust code, G1/4 port, and PT thread form. Mounting is limited to FA or LB (no back cover or SDB). If you need to step down, the 32mm bore gives 402N push at 0.5MPa; if you need to step up, the 40mm is the largest MALJ size, so you must switch series. Note that the -S magnet changes sensor families from CS1-M/DS1-M to CMSG/DMSG/EMSG.
Remember the adjuster is a travel stop, not a lock. Because this stroke is 275mm, be mindful of rod-bending: long strokes amplify side-load, so ensure your mounting guides the load to prevent rod damage.
Upgrade checklist
- ✓ Order the MBLJ40X275-30-S (same bore/stroke/adjust)
- ✓ Same 245–275 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 MBLJ40X275-30-S instead of this discontinued model.
Airtac MALJ40 Adjustable Mini Cylinder MALJ40X275-30-S FAQ
Yes, the MALJ40X275-30-S is discontinued. The exact drop-in replacement is the MBLJ40X275-30-S, which matches the 40mm bore, 275mm stroke, 30mm adjust code, force, and G1/4 port. You will need to upgrade your sensors from the older CS1-M/DS1-M switches to the CMSG/DMSG/EMSG family.
The usable adjustable window is 245-275mm (275mm stroke minus the 30mm adjust code). The force ratings at 0.5MPa are 628N push and 528N pull. At 0.7MPa it pushes 880N, and the maximum force is 128kgf at 1.0MPa. The adjuster is a travel stop, not a lock, and it cannot hold a load without live air.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
Drop-in Upgrade
The MBLJ40X275-30-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 MALJ40X275-30-S → MBLJ40X275-30-S)
Tell us the quantity and destination — we quote the drop-in MBLJ40X275-30-S replacement with price, stock and lead time, usually within 7-8 hours.