This model is discontinued
AirTAC has phased out the MALJ series. You can still order this code here: we ship the direct replacement MBLJ25X300-75, 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 MALJ25 Adjustable Mini Air Cylinder MALJ25X300-75
The AirTAC MALJ25 Adjustable Mini Air Cylinder MALJ25X300-75 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 225 to 300 mm. This model is discontinued — the direct replacement is the MBLJ25X300-75.
- BoreØ25 mm
- Stroke300 mm
- Adjust window225–300 mm
- Port sizeG1/8
- Rod threadM10×1.25
- StatusDiscontinued → MBLJ25X300-75
- 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 MALJ25 Adjustable Mini Air Cylinder MALJ25X300-75
The AirTAC MALJ25X300-75 is a discontinued double-acting double-rod mini cylinder with a 25 mm bore and 300 mm stroke. It provides a usable extension window of 225-300 mm via its 75 mm rear adjuster. The direct replacement is the MBLJ25X300-75, matching the bore, stroke, adjust code, G1/8 port, and mounting.
This SKU lacks the -S magnet, so it cannot accept a position sensor. The rear adjuster is a travel stop that sets the end position but does not hold the load without live air. Upgrading to the MBLJ25X300-75 moves you from threaded covers to a riveted rolling-packed body. Because the stroke is 300 mm, minimize side loads to prevent rod bending.
Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X300-75 Technical Specifications
| Model | Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X300-75 |
|---|---|
| Series | MALJ adjustable-stroke mini cylinder (discontinued) |
| Replacement | MBLJ25X300-75 |
| Bore size | Ø25 mm |
| Stroke | 300 mm |
| Adjustable window | 225 – 300 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 MBLJ25X300-75 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 MBLJ25X300-75 matches these values.
Model Code: Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X300-75
| MALJ | Adjustable-stroke aluminum mini cylinder, double acting (discontinued). |
|---|---|
| 25 | Bore size in mm (20/25/32/40). |
| ×300 | Nominal stroke length in mm. |
| -75 | Adjustable amount: trim the end to a 225–300 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 MALJ25X300-75 Is Used
Textile Loom Tension Arm
Trim the 75 mm rear stopper to tune the full extension of a fabric guide arm, preventing over-travel on large loom frames while maintaining consistent tension.
Carton Flap Folder
Adjust the end position on a packaging line folder to accommodate varying box heights, relying on the fixed rubber bumper to soften the 300 mm stroke impact.
Replacing the Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X300-75 with MBLJ25X300-75
To replace this MALJ25X300-75, order the MBLJ25X300-75. Confirm the 25 mm bore, 300 mm stroke, 75 mm adjust code, PT G1/8 port, and FA or LB mounting. There is no back cover or SDB option. Since this unit lacks the -S magnet, it cannot take a sensor; if you need sensing on the new MBLJ, specify the -S code to use CMSG/DMSG/EMSG switches instead of the older CS1-M/DS1-M. Remember the rear screw is a travel stop, not a lock.
At 300 mm stroke, ensure your mounting guides absorb lateral forces to avoid rod bending.
Upgrade checklist
- ✓ Order the MBLJ25X300-75 (same bore/stroke/adjust)
- ✓ Same 225–300 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 MBLJ25X300-75 instead of this discontinued model.
Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X300-75 FAQ
Yes, the MALJ25X300-75 is discontinued. The direct replacement is the MBLJ25X300-75, which matches the 25 mm bore, 300 mm stroke, 75 mm adjust code, G1/8 port, and mounting. The MBLJ upgrades the construction to a riveted rolling-packed body from the original threaded covers.
The -75 adjust code lets you trim up to 75 mm at the rear, creating a usable stroke window of 225-300 mm. The adjuster is a travel stop, not a lock, and cannot hold a load without live air.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
Direct Upgrade
The MBLJ25X300-75 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 MALJ25 Adjustable Mini Air Cylinder MALJ25X300-75 → MBLJ25X300-75)
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