This model is discontinued
AirTAC has phased out the MALJ series. You can still order this code here: we ship the direct replacement MBLJ25X30-20, 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 MALJ25X30-20
The AirTAC MALJ25 Adjustable Mini Air Cylinder MALJ25X30-20 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 10 to 30 mm. This model is discontinued — the direct replacement is the MBLJ25X30-20.
- BoreØ25 mm
- Stroke30 mm
- Adjust window10–30 mm
- Port sizeG1/8
- Rod threadM10×1.25
- StatusDiscontinued → MBLJ25X30-20
- 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 MALJ25X30-20
The AirTAC MALJ25X30-20 is a discontinued double-acting, double-rod mini cylinder with a 20 mm rear adjustable stroke stopper. It gives a usable end-position window of 10-30 mm. The direct replacement is the MBLJ25X30-20, matching the bore, stroke, port, and force.
This SKU has no -S magnet, so it cannot accept a position sensor. It uses a fixed rubber bumper, not an adjustable air cushion. The adjuster is a travel stop, not a lock; it will not hold a load without live air. The original MALJ uses threaded covers and PT porting, while the MBLJ upgrade features a riveted rolling-packed body.
Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X30-20 Technical Specifications
| Model | Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X30-20 |
|---|---|
| Series | MALJ adjustable-stroke mini cylinder (discontinued) |
| Replacement | MBLJ25X30-20 |
| Bore size | Ø25 mm |
| Stroke | 30 mm |
| Adjustable window | 10 – 30 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 MBLJ25X30-20 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 MBLJ25X30-20 matches these values.
Model Code: Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X30-20
| MALJ | Adjustable-stroke aluminum mini cylinder, double acting (discontinued). |
|---|---|
| 25 | Bore size in mm (20/25/32/40). |
| ×30 | Nominal stroke length in mm. |
| -20 | Adjustable amount: trim the end to a 10–30 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 MALJ25X30-20 Is Used
Pick-and-place retraction
Fine-tune the retraction window down to 10 mm on a SMD pick-and-place head, ensuring the rod clears the feeder lane without adding external physical stops.
Film cutting blade strike
Set a precise 12 mm forward stroke on a flexible packaging film cutter, letting the 206 N pull retract the blade cleanly out of the web path.
Replacing the Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X30-20 with MBLJ25X30-20
To replace the MALJ25X30-20, order the direct replacement MBLJ25X30-20. Confirm the 25 mm bore, 30 mm stroke, 20 mm adjust code, G1/8 port, M10x1.25 rod thread, and PT thread form. Mounting is Basic, FA, or LB only (no back cover or SDB allowed). Because this SKU lacks the -S magnet, it cannot hold a sensor; the MBLJ upgrade switches to CMSG/DMSG/EMSG switches if you add the -S version.
For sizing, stepping down to the 20 mm bore drops thrust to 157 N at 0.5 MPa, while stepping up to the 32 mm bore raises it to 402 N. Remember: the rear adjuster sets the end position but does not lock the load—use an external lock for holding. The fixed rubber bumper softens end impact only.
Upgrade checklist
- ✓ Order the MBLJ25X30-20 (same bore/stroke/adjust)
- ✓ Same 10–30 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 MBLJ25X30-20 instead of this discontinued model.
Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X30-20 FAQ
Yes, the MALJ25X30-20 is discontinued. 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 rear position, creating a usable stroke window from 10 mm to 30 mm. The adjuster is a travel stop, not a lock.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
Direct Upgrade
The MBLJ25X30-20 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 MALJ25X30-20 → MBLJ25X30-20)
Tell us the quantity and destination — we quote the direct MBLJ25X30-20 replacement with price, stock and lead time, usually within 7-8 hours.