This model is discontinued
AirTAC has phased out the MALJ series. You can still order this code here: we ship the direct replacement MBLJ40X250-75, with the same bore, stroke, output force, port and mounting, so it fits the same application. 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 MALJ40X250-75
The AirTAC Airtac MALJ40 Adjustable Mini Cylinder MALJ40X250-75 is a double-acting aluminum mini cylinder with a rear adjustable-stroke stopper: you can trim up to 75 mm, giving a usable end-position window from 175 to 250 mm. This model is discontinued — the direct replacement is the MBLJ40X250-75.
- BoreØ40 mm
- Stroke250 mm
- Adjust window175–250 mm
- Port sizeG1/4
- Rod threadM12×1.25
- StatusDiscontinued → MBLJ40X250-75
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac MALJ40 Adjustable Mini Cylinder MALJ40X250-75
The AirTAC MALJ40X250-75 is a discontinued double-acting mini cylinder with a 40 mm bore and 250 mm stroke. It features a rear adjustable stopper that trims up to 75 mm, yielding a usable end-position window of 175-250 mm. The direct replacement is the MBLJ40X250-75, matching bore, stroke, port, and force.
This SKU lacks a -S magnet, so it cannot accept a position sensor. The original MALJ uses threaded covers and a CS1-M/DS1-M sensor track, while the MBLJ upgrade features a riveted rolling-packed body and CMSG/DMSG/EMSG switches. The adjuster sets end reach without external stops but does not hold load without live air. It uses a fixed rubber bumper, not an adjustable cushion.
Airtac MALJ40 Adjustable Mini Cylinder MALJ40X250-75 Technical Specifications
| Model | Airtac MALJ40 Adjustable Mini Cylinder MALJ40X250-75 |
|---|---|
| Series | MALJ adjustable-stroke mini cylinder (discontinued) |
| Replacement | MBLJ40X250-75 |
| Bore size | Ø40 mm |
| Stroke | 250 mm |
| Adjustable window | 175 – 250 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 MBLJ40X250-75 carries the same ratings.
Theoretical Output Force (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 528 N | 528 N |
| 0.7 MPa | 739 N | — |
| Max (@1.0 MPa) | 108 kgf | |
MALJ is double-rod: the rear rod that carries the stroke adjuster passes through the rear cover, so both piston faces lose rod area. Push is shown at the annular-area value (conservative), lower than a single-rod MAL push of the same bore. The MBLJ40X250-75 matches these values.
Model Code: Airtac MALJ40 Adjustable Mini Cylinder MALJ40X250-75
| MALJ | Adjustable-stroke aluminum mini cylinder, double acting (discontinued). |
|---|---|
| 40 | Bore size in mm (20/25/32/40). |
| ×250 | Nominal stroke length in mm. |
| -75 | Adjustable amount: trim the end to a 175–250 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 MALJ40X250-75 Is Used
Bending press locator
Set an exact 175-250 mm backstop on a manual bending press, leveraging the 40 mm bore force to hold sheet metal alignment firmly before the clamp cycle.
Palletizer push-off
Tune the end position on a palletizer push-off arm to accommodate varying box widths without remounting the cylinder or adding external hard stops.
Replacing the Airtac MALJ40 Adjustable Mini Cylinder MALJ40X250-75 with MBLJ40X250-75
Replace this MALJ40X250-75 directly with the MBLJ40X250-75. Confirm the 40 mm bore, 250 mm stroke, 75 mm adjust code, G1/4 port, PT thread, and FA/LB mounting (no back cover or SDB). Because this SKU has no -S magnet, it cannot take a sensor. The rear adjuster is a travel stop, not a lock.
Upgrade checklist
- ✓ Order the MBLJ40X250-75 (same bore/stroke/adjust)
- ✓ Same 175–250 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 MBLJ40X250-75 instead of this discontinued model.
Airtac MALJ40 Adjustable Mini Cylinder MALJ40X250-75 FAQ
Yes, the MALJ40X250-75 is discontinued. The direct replacement is the MBLJ40X250-75, matching the 40 mm bore, 250 mm stroke, 75 mm adjust code, G1/4 port, and mounting. The MBLJ upgrades the body to a riveted rolling-packed design.
The 75 mm adjust code allows trimming the 250 mm stroke to a usable 175-250 mm window. The adjuster is a travel stop, not a lock.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
Direct Upgrade
The MBLJ40X250-75 replaces this model 1:1.
Fast Dispatch
MBLJ replacements are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
Recommended AirTAC MBLJ Replacements
Request a Quote (Airtac MALJ40 Adjustable Mini Cylinder MALJ40X250-75 → MBLJ40X250-75)
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