This model is discontinued
AirTAC has phased out the MALJ series. You can still order this code here: we ship the direct replacement MBLJ25X400-10, 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 MALJ25 Adjustable Mini Air Cylinder MALJ25X400-10
The AirTAC MALJ25 Adjustable Mini Air Cylinder MALJ25X400-10 is a double-acting aluminum mini cylinder with a rear adjustable-stroke stopper: you can trim up to 10 mm, giving a usable end-position window from 390 to 400 mm. This model is discontinued — the direct replacement is the MBLJ25X400-10.
- BoreØ25 mm
- Stroke400 mm
- Adjust window390–400 mm
- Port sizeG1/8
- Rod threadM10×1.25
- StatusDiscontinued → MBLJ25X400-10
- 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 MALJ25 Adjustable Mini Air Cylinder MALJ25X400-10
The AirTAC MALJ25X400-10 is a discontinued double-acting double-rod mini cylinder with a 10 mm rear stroke adjustment, yielding a usable travel window of 390-400 mm. The direct replacement is the MBLJ25X400-10, matching the 25 mm bore, 400 mm stroke, G1/8 port, and 50 kgf max force.
This non-standard 400 mm stroke exceeds the 300 mm catalog maximum for bore 25, making it a made-to-order item. Two upgrade details apply: the MALJ uses threaded covers and a fixed rubber bumper, while the MBLJ features a riveted rolling-packed body. Because this SKU lacks the -S magnet, it cannot accept a position sensor. The rear adjuster is a travel stop, not a lock; it sets the end position but will not hold a load without live air pressure.
Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X400-10 Technical Specifications
| Model | Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X400-10 |
|---|---|
| Series | MALJ adjustable-stroke mini cylinder (discontinued) |
| Replacement | MBLJ25X400-10 |
| Bore size | Ø25 mm |
| Stroke | 400 mm |
| Adjustable window | 390 – 400 mm |
| Acting type | Double acting, adjustable stroke |
| Port size | G1/8 |
| Rod thread | M10×1.25 |
| 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 300 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 MBLJ25X400-10 carries the same ratings.
Theoretical Output Force (Ø25mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 206 N | 206 N |
| 0.7 MPa | 289 N | — |
| Max (@1.0 MPa) | 42 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 MBLJ25X400-10 matches these values.
Model Code: Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X400-10
| MALJ | Adjustable-stroke aluminum mini cylinder, double acting (discontinued). |
|---|---|
| 25 | Bore size in mm (20/25/32/40). |
| ×400 | Nominal stroke length in mm. |
| -10 | Adjustable amount: trim the end to a 390–400 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 MALJ25 Adjustable Mini Air Cylinder MALJ25X400-10 Is Used
Printed Circuit Board Conveyor
Dials in a 390-400 mm transfer stroke on a PCB conveyor lane, using the 10 mm stopper to fine-tune hand-off depth without adding external spacers.
Carton Flap Folder
Sets a precise 395 mm reach on a packaging line flap folder, using the rear stop to compensate for carton size variations on the fly.
Replacing the Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X400-10 with MBLJ25X400-10
To replace the MALJ25X400-10 with the MBLJ25X400-10, confirm the 25 mm bore, 400 mm stroke, 10 mm adjust code, G1/8 PT port, and mounting (FA or LB only; no back cover or SDB). Note that the -S magnet family changes from CS1-M/DS1-M on the MALJ to CMSG/DMSG/EMSG on the MBLJ, though this specific no-magnet SKU cannot take a sensor anyway.
The 10 mm adjuster lets you dial in the exact end position, but it functions strictly as a mechanical travel stop, not a lock. At 400 mm, this non-standard stroke requires careful rod alignment to prevent side-load bending; use a guided carrier for long-reach tasks.
Upgrade checklist
- ✓ Order the MBLJ25X400-10 (same bore/stroke/adjust)
- ✓ Same 390–400 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 MBLJ25X400-10 instead of this discontinued model.
Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X400-10 FAQ
Yes, the MALJ25X400-10 is discontinued. The direct replacement is the MBLJ25X400-10, which matches the 25 mm bore, 400 mm stroke, 10 mm adjust code, G1/8 port, and 50 kgf max force. The MBLJ upgrades the construction from threaded covers to a riveted rolling-packed body.
The 10 mm adjuster is a travel stop that creates a usable stroke window of 390-400 mm. It does not hold the load without air pressure, and this no-magnet SKU cannot accept a sensor.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
Direct Upgrade
The MBLJ25X400-10 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
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