This model is discontinued
AirTAC has phased out the MALJ series. You can still order this code here: we ship the direct replacement MBLJ25X300-30, 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 MALJ25X300-30
The AirTAC MALJ25 Adjustable Mini Air Cylinder MALJ25X300-30 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 270 to 300 mm. This model is discontinued — the direct replacement is the MBLJ25X300-30.
- BoreØ25 mm
- Stroke300 mm
- Adjust window270–300 mm
- Port sizeG1/8
- Rod threadM10×1.25
- StatusDiscontinued → MBLJ25X300-30
- 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 MALJ25X300-30
The AirTAC MALJ25X300-30 is a discontinued double-acting, double-rod adjustable-stroke mini cylinder. It has a 25mm bore, 300mm stroke, and a 30mm rear adjuster, giving a usable end-position window of 270-300mm. The direct replacement is the MBLJ25X300-30, matching bore, stroke, force, port, and mounting.
This SKU lacks a magnet (-S) and 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. Impact is absorbed by a fixed rubber bumper. Two upgrade facts: the MALJ uses threaded covers, while the MBLJ uses a riveted rolling-packed body; and if you ever need a sensor, the MBLJ works with CMSG/DMSG/EMSG switches, whereas the older MALJ -S used CS1-M/DS1-M.
Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X300-30 Technical Specifications
| Model | Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X300-30 |
|---|---|
| Series | MALJ adjustable-stroke mini cylinder (discontinued) |
| Replacement | MBLJ25X300-30 |
| Bore size | Ø25 mm |
| Stroke | 300 mm |
| Adjustable window | 270 – 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 MBLJ25X300-30 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 MBLJ25X300-30 matches these values.
Model Code: Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X300-30
| MALJ | Adjustable-stroke aluminum mini cylinder, double acting (discontinued). |
|---|---|
| 25 | Bore size in mm (20/25/32/40). |
| ×300 | Nominal stroke length in mm. |
| -30 | Adjustable amount: trim the end to a 270–300 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 MALJ25X300-30 Is Used
Textile Loom Tensioning Arm
Trim the extended reach on a long 300mm loom tensioning arm by up to 30mm, using the fixed rubber bumper to absorb the rapid end-of-travel impact on the 206N pull stroke.
Dispenser Nozzle Height Calibration
Fine-tune the nozzle height on an adhesive dispensing line by adjusting the rear stopper, avoiding mechanical rod binding over the 300mm extension.
Replacing the Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X300-30 with MBLJ25X300-30
To replace this MALJ25X300-30, order the direct replacement MBLJ25X300-30. Confirm the 25mm bore, 300mm stroke, 30mm adjust code, G1/8 port, PT thread, and FA/LB mounting (there is no back cover or SDB option). Because this SKU has no magnet, it cannot take a sensor; the MBLJ upgrade uses CMSG/DMSG/EMSG switches. Remember the adjuster is a stop, not a lock. At 300mm stroke, long-rod bending and side-load risks are high; guide the load to prevent rod damage.
Upgrade checklist
- ✓ Order the MBLJ25X300-30 (same bore/stroke/adjust)
- ✓ Same 270–300 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 MBLJ25X300-30 instead of this discontinued model.
Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X300-30 FAQ
Yes, the MALJ25X300-30 is discontinued. The direct replacement is the MBLJ25X300-30, which matches the 25mm bore, 300mm stroke, 30mm adjust code, G1/8 port, and mounting. The MBLJ upgrades the body to a riveted rolling-packed design from the original threaded covers.
The 30mm adjuster lets you trim the end position, creating a usable stroke window of 270-300mm. This SKU has no -S magnet, so it cannot take a sensor.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
Direct Upgrade
The MBLJ25X300-30 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 MALJ25X300-30 → MBLJ25X300-30)
Tell us the quantity and destination — we quote the direct MBLJ25X300-30 replacement with price, stock and lead time, usually within 7-8 hours.