This model is discontinued
AirTAC has phased out the MALJ series. You can still order this code here: we ship the direct replacement MBLJ25X85-30-S, 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 MALJ25X85-30-S
The AirTAC MALJ25 Adjustable Mini Air Cylinder MALJ25X85-30-S 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 55 to 85 mm. This model is discontinued — the direct replacement is the MBLJ25X85-30-S.
- BoreØ25 mm
- Stroke85 mm
- Adjust window55–85 mm
- Port sizeG1/8
- Rod threadM10×1.25
- StatusDiscontinued → MBLJ25X85-30-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 MALJ25X85-30-S
The AirTAC MALJ25X85-30-S is a discontinued double-acting, double-rod adjustable-stroke mini cylinder. It features a 25mm bore and an 85mm stroke, but the rear stopper lets you trim up to 30mm, yielding a usable end-position window of 55-85mm. The direct replacement is the MBLJ25X85-30-S, matching your bore, stroke, adjust code, G1/8 port, and mounting.
This -S model includes a magnet for position sensing. The legacy MALJ works with CS1-M or DS1-M reed switches, while the MBLJ upgrade moves to CMSG/DMSG/EMSG sensors. The original MALJ uses threaded covers, whereas the MBLJ features a riveted rolling-packed body. Both generations use a fixed rubber bumper to soften end impact and lack a back cover or SDB option, restricting mounting to basic, FA, or LB.
Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X85-30-S Technical Specifications
| Model | Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X85-30-S |
|---|---|
| Series | MALJ adjustable-stroke mini cylinder (discontinued) |
| Replacement | MBLJ25X85-30-S |
| Bore size | Ø25 mm |
| Stroke | 85 mm |
| Adjustable window | 55 – 85 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 MBLJ25X85-30-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 MBLJ25X85-30-S matches these values.
Model Code: Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X85-30-S
| MALJ | Adjustable-stroke aluminum mini cylinder, double acting (discontinued). |
|---|---|
| 25 | Bore size in mm (20/25/32/40). |
| ×85 | Nominal stroke length in mm. |
| -30 | Adjustable amount: trim the end to a 55–85 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 MALJ25X85-30-S Is Used
PCB Router Depth Stop
Dial the 55-85mm reach on a pinion-driven PCB depaneling router.
Bottle Capper Pre-load
Set a precise 70mm extension on a rotary capping turret. The fixed rubber bumper absorbs the spindle impact against plastic caps, while the rear stopper dials the exact thread-seating depth.
Label Wipe-Down Press
Tune the stroke window to 60mm for a sponge wipe-down station in a pharmaceutical labeling line. The 206N pull force retracts the wiper arm cleanly, avoiding label tearing during high-speed indexing.
Replacing the Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X85-30-S with MBLJ25X85-30-S
To replace the MALJ25X85-30-S, specify the MBLJ25X85-30-S to retain the 25mm bore, 85mm stroke, 30mm adjust code, G1/8 port, PT thread, and FA/LB mounting. Remember the rear adjuster is a travel stop that sets the end position; it does not hold a load without live air pressure. If you need an external lock for a held load, add one. Your -S magnet switches must change from CS1-M/DS1-M to CMSG/DMSG/EMSG.
For sizing flexibility, stepping down to a 20mm bore drops the 0.5 MPa push force to 157N, while stepping up to a 32mm bore raises it to 402N. Since this 85mm stroke is under the 300mm limit, rod-bending side-load risks are low, but you should still avoid purely side-loaded setups.
Upgrade checklist
- ✓ Order the MBLJ25X85-30-S (same bore/stroke/adjust)
- ✓ Same 55–85 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 MBLJ25X85-30-S instead of this discontinued model.
Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X85-30-S FAQ
Yes, the MALJ25X85-30-S is discontinued. The direct replacement is the MBLJ25X85-30-S, matching the 25mm bore, 85mm stroke, 30mm adjust code, G1/8 port, and FA/LB mounting. You must upgrade your position sensors from the old CS1-M/DS1-M reed switches to the newer CMSG/DMSG/EMSG family.
The 30mm adjust code lets you trim the rear end position, giving a usable stroke window of 55-85mm. The adjuster is a travel stop, not a lock.
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Genuine AirTAC parts produced by AirTAC factory.
Direct Upgrade
The MBLJ25X85-30-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.
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