This model is discontinued
AirTAC has phased out the MALJ series. You can still order this code here: we ship the direct replacement MBLJ25X80-20S, 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-S
The AirTAC MALJ25 Adjustable Mini Air Cylinder MALJ25X80-20-S 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-S.
- BoreØ25 mm
- Stroke80 mm
- Adjust window60–80 mm
- Port sizeG1/8
- Rod threadM10×1.25
- StatusDiscontinued → MBLJ25X80-20-S
- 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-S
The AirTAC MALJ25X80-20-S is a discontinued double-acting, double-rod mini cylinder with a rear adjustable stroke stopper. The 20 mm adjust code lets you trim the end position, creating a usable stroke window of 60-80 mm. The direct replacement is the MBLJ25X80-20-S, which matches the 25 mm bore, 80 mm stroke, G1/8 port, and mounting.
This bore uses a 10 mm hard-chrome carbon steel rod and an M10x1.25 rod-end thread. The -S magnet on this MALJ works with the older CS1-M / DS1-M reed switches, whereas the MBLJ upgrade moves to CMSG / DMSG / EMSG sensors. The MALJ uses threaded covers and a fixed rubber bumper, while the MBLJ features a riveted rolling-packed body. The rear adjuster sets the travel stop but does not hold a load without live air pressure.
Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X80-20-S Technical Specifications
| Model | Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X80-20-S |
|---|---|
| Series | MALJ adjustable-stroke mini cylinder (discontinued) |
| Replacement | MBLJ25X80-20-S |
| 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-S 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-S matches these values.
Model Code: Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X80-20-S
| 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-S Is Used
Leather Stamp Press Positioning
Fine-tune the end position by up to 20 mm on a leather embossing press, adjusting the 206 N pull return to accommodate varying leather thicknesses without changing the cylinder body.
Carton Flap Folder Timing
Trim the rear stopper to sync the 80 mm extension reach on a packaging line carton folder, ensuring the rod meets the flap at the exact moment the product passes underneath.
Replacing the Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X80-20-S with MBLJ25X80-20-S
To replace the MALJ25X80-20-S, order the exact direct replacement MBLJ25X80-20-S. Confirm the 25 mm bore, 80 mm stroke, 20 mm adjust code, G1/8 PT port, and M10x1.25 rod thread. Mounting is Basic, FA, or LB only, as there is no back cover or SDB option. The -S magnet means a sensor change is required, as the MBLJ upgrades from the older CS1-M / DS1-M switches to the CMSG / DMSG / EMSG family.
Remember the rear adjuster is a travel stop, not a lock; it cannot hold a load without air, so use an external lock for suspended masses.
Upgrade checklist
- ✓ Order the MBLJ25X80-20-S (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-S instead of this discontinued model.
Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X80-20-S FAQ
Yes, the MALJ25X80-20-S is discontinued. The direct replacement is the MBLJ25X80-20-S, which matches the 25 mm bore, 80 mm stroke, 20 mm adjust code, G1/8 port, and mounting. The MBLJ upgrades the body to a riveted rolling-packed design and changes the magnet switches from CS1-M / DS1-M to CMSG / DMSG / EMSG.
The 20 mm adjust code lets you trim the rear travel stop, creating a usable stroke window from 60 mm to 80 mm. The adjuster only sets the end position; it is a 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 MBLJ25X80-20-S 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-S → MBLJ25X80-20-S)
Tell us the quantity and destination — we quote the direct MBLJ25X80-20-S replacement with price, stock and lead time, usually within 7-8 hours.