This model is discontinued
AirTAC has phased out the MALJ series. You can still order this code here: we ship the direct replacement MBLJ25X80-40S, 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 MALJ25X80-40-S
The AirTAC MALJ25 Adjustable Mini Air Cylinder MALJ25X80-40-S is a double-acting aluminum mini cylinder with a rear adjustable-stroke stopper: you can trim up to 40 mm, giving a usable end-position window from 40 to 80 mm. This model is discontinued — the direct replacement is the MBLJ25X80-40-S.
- BoreØ25 mm
- Stroke80 mm
- Adjust window40–80 mm
- Port sizeG1/8
- Rod threadM10×1.25
- StatusDiscontinued → MBLJ25X80-40-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 MALJ25X80-40-S
The AirTAC MALJ25X80-40-S is a discontinued double-acting, adjustable-stroke mini cylinder. The direct replacement is the MBLJ25X80-40-S, which matches the 25mm bore, 80mm stroke, G1/8 port, and 40mm adjust code exactly. The rear screw stopper on this SKU creates a usable travel window of 40-80mm, letting you dial in the exact end position without adding external stops.
This -S variant has a magnet for the older CS1-M or DS1-M reed switches, whereas the MBLJ replacement uses the newer CMSG, DMSG, or EMSG sensor families. The original MALJ features threaded covers and a fixed rubber bumper to soften end impacts, while the MBLJ upgrades to a riveted rolling-packed body. Remember that the rear adjuster is a travel stop, not a lock; it sets the end position but will not hold a load without live air pressure.
Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X80-40-S Technical Specifications
| Model | Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X80-40-S |
|---|---|
| Series | MALJ adjustable-stroke mini cylinder (discontinued) |
| Replacement | MBLJ25X80-40-S |
| Bore size | Ø25 mm |
| Stroke | 80 mm |
| Adjustable window | 40 – 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 MBLJ25X80-40-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 MBLJ25X80-40-S matches these values.
Model Code: Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X80-40-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. |
| -40 | Adjustable amount: trim the end to a 40–80 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 MALJ25X80-40-S Is Used
Label Applicator Tamp
Fine-tune the tamp stroke on a bottle labeling head; the rear stopper lets you tweak reach without machining new brackets, while the 206N pull force retracts the pad cleanly.
Small-Part Press Fit
Press small bearings or pins into an aluminum housing by adjusting the stroke to control the exact insertion depth, relying on the fixed rubber bumper to absorb the final end impact.
Replacing the Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X80-40-S with MBLJ25X80-40-S
To replace the MALJ25X80-40-S, order the exact direct replacement MBLJ25X80-40-S. Confirm the 25mm bore, 80mm stroke, 40mm adjust code, G1/8 port, M10x1.25 rod-end thread, and FA or LB mounting (there is no back-cover or SDB option). You must also update your sensors: the MALJ -S magnet works with CS1-M/DS1-M switches, but the MBLJ requires CMSG/DMSG/EMSG sensors. The rear adjuster is a travel stop, not a lock, so add an external pneumatic lock if you need to hold a load without air.
Upgrade checklist
- ✓ Order the MBLJ25X80-40-S (same bore/stroke/adjust)
- ✓ Same 40–80 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 MBLJ25X80-40-S instead of this discontinued model.
Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X80-40-S FAQ
Yes, the MALJ25X80-40-S is discontinued. The direct replacement is the MBLJ25X80-40-S, which matches the 25mm bore, 80mm stroke, 40mm adjust code, and G1/8 port. You will need to swap your CS1-M or DS1-M sensors for the CMSG, DMSG, or EMSG sensor family used on the new riveted body.
The usable stroke window is 40-80mm, set by trimming up to 40mm at the rear screw stopper. The adjuster is a travel stop, not a lock, so it will not hold a load without live air pressure.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
Direct Upgrade
The MBLJ25X80-40-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
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