This model is discontinued
AirTAC has phased out the MALJ series. You can still order this code here: we ship the direct replacement MBLJ25X80-20, 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 MALJ25X80-20
The AirTAC MALJ25 Adjustable Mini Air Cylinder MALJ25X80-20 is a double-acting aluminum mini cylinder with a rear adjustable-stroke stopper: you can trim up to 20 mm, giving a usable end-position window from 60 to 80 mm. This model is discontinued — the direct replacement is the MBLJ25X80-20.
- BoreØ25 mm
- Stroke80 mm
- Adjust window60–80 mm
- Port sizeG1/8
- Rod threadM10×1.25
- StatusDiscontinued → MBLJ25X80-20
- 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 MALJ25X80-20
The AirTAC MALJ25X80-20 is a discontinued adjustable-stroke mini cylinder. The 20 mm rear adjuster creates a usable stroke window of 60-80 mm. The direct replacement is the MBLJ25X80-20, matching the 25 mm bore, 80 mm stroke, G1/8 port, and force ratings.
This SKU lacks the -S magnet, so it cannot accept a position sensor. It uses a fixed rubber bumper, not an adjustable cushion. The rear adjuster acts as a travel stop to fine-tune the end position without adding external stops, but it does not hold a load without live air. The original MALJ uses threaded covers and a carbon-steel rod with a 20 um hard chrome plating; the MBLJ upgrade shifts to a riveted rolling-packed body.
Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X80-20 Technical Specifications
| Model | Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X80-20 |
|---|---|
| Series | MALJ adjustable-stroke mini cylinder (discontinued) |
| Replacement | MBLJ25X80-20 |
| Bore size | Ø25 mm |
| Stroke | 80 mm |
| Adjustable window | 60 – 80 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 MBLJ25X80-20 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 MBLJ25X80-20 matches these values.
Model Code: Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X80-20
| MALJ | Adjustable-stroke aluminum mini cylinder, double acting (discontinued). |
|---|---|
| 25 | Bore size in mm (20/25/32/40). |
| ×80 | Nominal stroke length in mm. |
| -20 | Adjustable amount: trim the end to a 60–80 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 MALJ25X80-20 Is Used
PCB Router Z-Axis
Dial in the 60-80 mm plunge depth on a PCB routing spindle to compensate for tool wear without remounting the cylinder.
Carton Flap Folder
Fine-tune the 60-80 mm reach to meet varying box heights, letting the fixed rubber bumper absorb the end impact.
Replacing the Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X80-20 with MBLJ25X80-20
To replace the MALJ25X80-20, order the MBLJ25X80-20. Confirm the 25 mm bore, 80 mm stroke, 20 mm adjust code, G1/8 port, PT thread, and FA or LB mounting (no back cover or SDB). Because this SKU has no -S magnet, it cannot take a sensor; if you need switches, the MBLJ-S uses CMSG/DMSG/EMSG sensors instead of the older CS1-M/DS1-M. The adjuster is a travel stop, not a lock.
Upgrade checklist
- ✓ Order the MBLJ25X80-20 (same bore/stroke/adjust)
- ✓ Same 60–80 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 MBLJ25X80-20 instead of this discontinued model.
Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X80-20 FAQ
Yes, the MALJ25X80-20 is discontinued. The direct replacement is the MBLJ25X80-20, which matches the 25 mm bore, 80 mm stroke, 20 mm adjust code, force, G1/8 port, and mounting. The MBLJ upgrades the body to a riveted rolling-packed design from the original threaded covers.
The 20 mm adjust code lets you trim the 80 mm stroke, giving a usable window of 60-80 mm. The adjuster is a travel stop, not a lock.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
Direct Upgrade
The MBLJ25X80-20 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 MALJ25X80-20 → MBLJ25X80-20)
Tell us the quantity and destination — we quote the direct MBLJ25X80-20 replacement with price, stock and lead time, usually within 7-8 hours.