This model is discontinued
AirTAC has phased out the MALJ series. You can still order this code here: we ship the direct replacement MBLJ20X25-10-LB, 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 MALJ20 Adjustable Mini Cylinder MALJ20X25-10-LB
The AirTAC Airtac MALJ20 Adjustable Mini Cylinder MALJ20X25-10-LB is a double-acting aluminum mini cylinder with a rear adjustable-stroke stopper: you can trim up to 10 mm, giving a usable end-position window from 15 to 25 mm. This model is discontinued — the direct replacement is the MBLJ20X25-10-LB.
- BoreØ20 mm
- Stroke25 mm
- Adjust window15–25 mm
- Port sizeG1/8
- Rod threadM8×1.25
- StatusDiscontinued → MBLJ20X25-10-LB
- 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 MALJ20 Adjustable Mini Cylinder MALJ20X25-10-LB
The AirTAC MALJ20X25-10-LB is a discontinued double-acting, double-rod mini cylinder with an LB foot mount. The direct replacement is the MBLJ20X25-10-LB, which matches the 20mm bore, 25mm stroke, 10mm adjust code, G1/8 port, and LB mounting. This SKU has no magnet (-S) and cannot take a position sensor.
The 10mm rear adjuster creates a usable stroke window of 15-25mm, letting you dial in the end position without external stops. The adjuster is a travel stop, not a lock. Unlike the threaded covers on this MALJ, the MBLJ replacement uses a riveted rolling-packed body.
Airtac MALJ20 Adjustable Mini Cylinder MALJ20X25-10-LB Technical Specifications
| Model | Airtac MALJ20 Adjustable Mini Cylinder MALJ20X25-10-LB |
|---|---|
| Series | MALJ adjustable-stroke mini cylinder (discontinued) |
| Replacement | MBLJ20X25-10-LB |
| Bore size | Ø20 mm |
| Stroke | 25 mm |
| Adjustable window | 15 – 25 mm |
| Acting type | Double acting, adjustable stroke |
| Port size | G1/8 |
| Rod thread | M8×1.25 |
| 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 MBLJ20X25-10-LB carries the same ratings.
Theoretical Output Force (Ø20mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 132 N | 132 N |
| 0.7 MPa | 185 N | — |
| Max (@1.0 MPa) | 27 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 MBLJ20X25-10-LB matches these values.
Model Code: Airtac MALJ20 Adjustable Mini Cylinder MALJ20X25-10-LB
| MALJ | Adjustable-stroke aluminum mini cylinder, double acting (discontinued). |
|---|---|
| 20 | Bore size in mm (20/25/32/40). |
| ×25 | Nominal stroke length in mm. |
| -10 | Adjustable amount: trim the end to a 15–25 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 MALJ20 Adjustable Mini Cylinder MALJ20X25-10-LB Is Used
PCB Router Z-Axis Stop
Dial the 15-25mm window to set the exact cutting depth on a desktop PCB router without remachining the head.
Dispenser Nozzle Height
Fine-tune the 20mm bore's 132N pull retraction to clear a syringe nozzle from a printed circuit board after dosing.
Leather Skiving Feed
Set a precise sheet-feeding stroke on a leather skiving machine, using the LB foot mount to hold the frame steady.
Replacing the Airtac MALJ20 Adjustable Mini Cylinder MALJ20X25-10-LB with MBLJ20X25-10-LB
Replace this MALJ20X25-10-LB with the exact MBLJ20X25-10-LB direct. Confirm the 20mm bore, 25mm stroke, 10mm adjust code, G1/8 PT port, M8x1.25 rod thread, and LB foot mount. This SKU lacks the -S magnet, so it cannot accept a CS1-M/DS1-M sensor; the MBLJ upgrade uses CMSG/DMSG/EMSG switches if you add a magnet. The adjuster is a travel stop, not a lock.
The fixed rubber bumper softens end impact but does not hold load without live air.
Upgrade checklist
- ✓ Order the MBLJ20X25-10-LB (same bore/stroke/adjust)
- ✓ Same 15–25 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 MBLJ20X25-10-LB instead of this discontinued model.
Airtac MALJ20 Adjustable Mini Cylinder MALJ20X25-10-LB FAQ
Yes, the MALJ20X25-10-LB is discontinued. The direct replacement is the MBLJ20X25-10-LB, matching the 20mm bore, 25mm stroke, 10mm adjust code, G1/8 port, and LB mount. The MBLJ upgrades the body to a riveted rolling-packed design.
The 10mm adjust code lets you trim the rear position, creating a usable 15-25mm stroke window. The adjuster is a travel stop, not a lock.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
Direct Upgrade
The MBLJ20X25-10-LB 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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