This model is discontinued
AirTAC has phased out the MALJ series. You can still order this code here: we ship the direct replacement MBLJ25X300-100, 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 MALJ25X300-100
The AirTAC MALJ25 Adjustable Mini Air Cylinder MALJ25X300-100 is a double-acting aluminum mini cylinder with a rear adjustable-stroke stopper: you can trim up to 100 mm, giving a usable end-position window from 200 to 300 mm. This model is discontinued — the direct replacement is the MBLJ25X300-100.
- BoreØ25 mm
- Stroke300 mm
- Adjust window200–300 mm
- Port sizeG1/8
- Rod threadM10×1.25
- StatusDiscontinued → MBLJ25X300-100
- 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 MALJ25X300-100
The AirTAC MALJ25X300-100 is a discontinued double-acting, double-rod adjustable-stroke cylinder. It features a 25 mm bore, a 300 mm stroke, and a 100 mm rear adjuster, creating a usable end-position window of 200-300 mm. The direct replacement is the MBLJ25X300-100, matching the bore, stroke, force, and G1/8 port.
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 uses threaded covers and a fixed rubber bumper, while the MBLJ upgrade features a riveted rolling-packed body. This SKU lacks a magnet, so it cannot accept a position sensor.
Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X300-100 Technical Specifications
| Model | Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X300-100 |
|---|---|
| Series | MALJ adjustable-stroke mini cylinder (discontinued) |
| Replacement | MBLJ25X300-100 |
| Bore size | Ø25 mm |
| Stroke | 300 mm |
| Adjustable window | 200 – 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 MBLJ25X300-100 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 MBLJ25X300-100 matches these values.
Model Code: Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X300-100
| MALJ | Adjustable-stroke aluminum mini cylinder, double acting (discontinued). |
|---|---|
| 25 | Bore size in mm (20/25/32/40). |
| ×300 | Nominal stroke length in mm. |
| -100 | Adjustable amount: trim the end to a 200–300 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 MALJ25X300-100 Is Used
Textile Fabric Stretching
Tune the end position from 300 mm down to 200 mm to accommodate varying fabric widths on a textile stenter frame, using the 206 N pull force to maintain tension without adding external stops.
Carton Flap Folding
Adjust the stroke window on a packaging line carton folder to 280 mm, ensuring the 50 kgf maximum force at 1.0 MPa cleanly tucks varying box flaps without crushing the corrugated board.
Replacing the Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X300-100 with MBLJ25X300-100
To replace this MALJ25X300-100, order the MBLJ25X300-100. Confirm your 25 mm bore, 300 mm stroke, 100 mm adjust code, G1/8 PT port, and FA/LB mounting (no back cover or SDB). Because this SKU lacks the -S magnet, it cannot take a sensor; if you need position detection, step up to an MBLJ25X300-100S and use CMSG/DMSG/EMSG switches instead of the older CS1-M/DS1-M.
Note that 300 mm is the maximum standard stroke for a 25 mm bore. At this length, even slight rod side-loads or misalignment can cause bending; ensure your guide rails carry the load and use a floating joint to protect the rod.
Upgrade checklist
- ✓ Order the MBLJ25X300-100 (same bore/stroke/adjust)
- ✓ Same 200–300 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 MBLJ25X300-100 instead of this discontinued model.
Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X300-100 FAQ
Yes, the MALJ25X300-100 is discontinued. The direct replacement is the MBLJ25X300-100, which matches the 25 mm bore, 300 mm stroke, 100 mm adjuster, and G1/8 port. The MBLJ upgrades the construction with a riveted rolling-packed body instead of threaded covers, but the force and mounting remain identical.
The usable adjustable stroke window is 200-300 mm. Remember the rear screw is a travel stop that sets this window, not a lock; it will not hold a load without live air.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
Direct Upgrade
The MBLJ25X300-100 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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