This model is discontinued
AirTAC has phased out the MALJ series. You can still order this code here: we ship the direct replacement MBLJ25X350-20, 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 MALJ25X350-20
The AirTAC MALJ25 Adjustable Mini Air Cylinder MALJ25X350-20 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 330 to 350 mm. This model is discontinued — the direct replacement is the MBLJ25X350-20.
- BoreØ25 mm
- Stroke350 mm
- Adjust window330–350 mm
- Port sizeG1/8
- Rod threadM10×1.25
- StatusDiscontinued → MBLJ25X350-20
- 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 MALJ25X350-20
The AirTAC MALJ25X350-20 is a discontinued double-acting, double-rod mini cylinder with a 25 mm bore and 350 mm stroke. A rear screw lets you trim up to 20 mm, giving a usable 330-350 mm end-position window. The direct replacement is the MBLJ25X350-20.
This non-standard 350 mm stroke exceeds the 300 mm max standard, making it a made-to-order item. It uses a fixed rubber bumper, not an adjustable cushion. The adjuster is a travel stop, not a lock. This SKU lacks a magnet, so it cannot take a position sensor. The original threaded covers and CS1-M/DS1-M switches upgrade to a riveted body and CMSG/DMSG/EMSG sensors on the MBLJ.
Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X350-20 Technical Specifications
| Model | Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X350-20 |
|---|---|
| Series | MALJ adjustable-stroke mini cylinder (discontinued) |
| Replacement | MBLJ25X350-20 |
| Bore size | Ø25 mm |
| Stroke | 350 mm |
| Adjustable window | 330 – 350 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 MBLJ25X350-20 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 MBLJ25X350-20 matches these values.
Model Code: Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X350-20
| MALJ | Adjustable-stroke aluminum mini cylinder, double acting (discontinued). |
|---|---|
| 25 | Bore size in mm (20/25/32/40). |
| ×350 | Nominal stroke length in mm. |
| -20 | Adjustable amount: trim the end to a 330–350 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 MALJ25X350-20 Is Used
Long-Reach Tube Insertion
Feed a fitting into a hydraulic hose end at a fixed 350 mm extension, trimming 20 mm at the rear if the hose length varies batch-to-batch.
Carton Flap Folder
Fine-tune the tucking arm reach on a case sealer to 340 mm, ensuring the 206 N pull retracts the arm cleanly without tearing the cardboard.
Replacing the Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X350-20 with MBLJ25X350-20
To replace this MALJ25X350-20, order the exact MBLJ25X350-20 direct. Confirm the 25 mm bore, 350 mm stroke, 20 mm adjust code, G1/8 port, PT threads, and FA/LB mounting (no back cover or SDB). Because this SKU lacks an -S magnet, it cannot accept a sensor; the MBLJ upgrade moves to CMSG/DMSG/EMSG switches if you add one. The adjuster sets end position but does not hold load without live air.
At 350 mm, the 10 mm rod is highly susceptible to side-load bending; use a guide to prevent premature seal wear.
Upgrade checklist
- ✓ Order the MBLJ25X350-20 (same bore/stroke/adjust)
- ✓ Same 330–350 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 MBLJ25X350-20 instead of this discontinued model.
Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X350-20 FAQ
Yes, the MALJ25X350-20 is discontinued. The direct replacement is the MBLJ25X350-20, which matches the 25 mm bore, 350 mm stroke, 20 mm adjust code, force, and G1/8 port. The MBLJ upgrades the threaded covers to a riveted rolling-packed body.
The 350 mm stroke is non-standard (exceeding the 300 mm max), and the 20 mm rear adjuster provides a usable 330-350 mm window. It uses a fixed rubber bumper, and the adjuster is a travel stop, not a lock.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
Direct Upgrade
The MBLJ25X350-20 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
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