This model is discontinued
AirTAC has phased out the MALJ series. You can still order this code here: we ship the direct replacement MBLJ25X125-50, 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 MALJ25X125-50
The AirTAC MALJ25 Adjustable Mini Air Cylinder MALJ25X125-50 is a double-acting aluminum mini cylinder with a rear adjustable-stroke stopper: you can trim up to 50 mm, giving a usable end-position window from 75 to 125 mm. This model is discontinued — the direct replacement is the MBLJ25X125-50.
- BoreØ25 mm
- Stroke125 mm
- Adjust window75–125 mm
- Port sizeG1/8
- Rod threadM10×1.25
- StatusDiscontinued → MBLJ25X125-50
- 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 MALJ25X125-50
The AirTAC MALJ25X125-50 is a discontinued adjustable-stroke mini cylinder. It provides a usable stroke window of 75-125 mm by letting you trim up to 50 mm at the rear stopper. The direct replacement is the MBLJ25X125-50, which matches the bore, stroke, force, G1/8 port and mounting.
This SKU has no magnet (-S) and cannot accept a position sensor. The MALJ uses a fixed rubber bumper, not an adjustable air cushion. The rear adjuster is a travel stop, not a lock; it sets the end position but cannot hold a load without live air. The original MALJ has threaded covers, while the MBLJ upgrade features a riveted rolling-packed body.
Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X125-50 Technical Specifications
| Model | Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X125-50 |
|---|---|
| Series | MALJ adjustable-stroke mini cylinder (discontinued) |
| Replacement | MBLJ25X125-50 |
| Bore size | Ø25 mm |
| Stroke | 125 mm |
| Adjustable window | 75 – 125 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 MBLJ25X125-50 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 MBLJ25X125-50 matches these values.
Model Code: Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X125-50
| MALJ | Adjustable-stroke aluminum mini cylinder, double acting (discontinued). |
|---|---|
| 25 | Bore size in mm (20/25/32/40). |
| ×125 | Nominal stroke length in mm. |
| -50 | Adjustable amount: trim the end to a 75–125 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 MALJ25 Adjustable Mini Air Cylinder MALJ25X125-50 Is Used
Wire Crimp Press
Adjust the 125 mm stroke down to 95 mm to crimp terminal ends accurately, relying on the fixed rubber bumper to soften the impact at the end of each cycle.
Carton Flap Folder
Trim 50 mm off the rear travel to perfectly time the folding arm reach on a packaging line, ensuring the 206 N pull force retracts the arm cleanly without stressing the hinge.
Replacing the Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X125-50 with MBLJ25X125-50
To replace the MALJ25X125-50, order the MBLJ25X125-50. Confirm the 25 mm bore, 125 mm stroke, 50 mm adjust code, G1/8 port, PT thread, and FA/LB mounting (no back cover or SDB). Because this SKU lacks the -S magnet, it cannot take a sensor; the MBLJ upgrade with -S uses CMSG/DMSG/EMSG switches instead of the older CS1-M/DS1-M. The adjuster is a stop, not a lock.
At 125 mm stroke, mind rod side-load; use a guide to prevent bending the 10 mm rod.
Upgrade checklist
- ✓ Order the MBLJ25X125-50 (same bore/stroke/adjust)
- ✓ Same 75–125 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 MBLJ25X125-50 instead of this discontinued model.
Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X125-50 FAQ
Yes, the MALJ25X125-50 is discontinued. The direct replacement is the MBLJ25X125-50, matching the 25 mm bore, 125 mm stroke, 50 mm adjust code, G1/8 port and FA/LB mounting. The MBLJ upgrades the body to a riveted rolling-packed design from the original threaded covers.
The 50 mm adjust code creates a usable stroke window from 75 mm to 125 mm. The adjuster is a travel stop, not a lock.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
Direct Upgrade
The MBLJ25X125-50 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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