This model is discontinued
AirTAC has phased out the MALJ series. You can still order this code here: we ship the direct replacement MBLJ25X350-40, 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 MALJ25X350-40
The AirTAC MALJ25 Adjustable Mini Air Cylinder MALJ25X350-40 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 310 to 350 mm. This model is discontinued — the direct replacement is the MBLJ25X350-40.
- BoreØ25 mm
- Stroke350 mm
- Adjust window310–350 mm
- Port sizeG1/8
- Rod threadM10×1.25
- StatusDiscontinued → MBLJ25X350-40
- 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 MALJ25X350-40
It uses a rear screw stopper to trim the end position by up to 40mm, giving a usable stroke window of 310-350mm. The fixed rubber bumper absorbs end impacts, but note this adjuster is a travel stop, not a lock. This SKU lacks a magnet (-S), so it cannot accept a position sensor.
The direct replacement is the MBLJ25X350-40, matching the 25mm bore, 350mm stroke, 40mm adjust code, G1/8 port, and 50 kgf max force. Upgrading brings a riveted rolling-packed body instead of the older threaded covers, and if you ever need a sensor, the MBLJ uses modern CMSG/DMSG/EMSG switches instead of the legacy CS1-M/DS1-M family.
Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X350-40 Technical Specifications
| Model | Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X350-40 |
|---|---|
| Series | MALJ adjustable-stroke mini cylinder (discontinued) |
| Replacement | MBLJ25X350-40 |
| Bore size | Ø25 mm |
| Stroke | 350 mm |
| Adjustable window | 310 – 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 MBLJ25X350-40 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 MBLJ25X350-40 matches these values.
Model Code: Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X350-40
| MALJ | Adjustable-stroke aluminum mini cylinder, double acting (discontinued). |
|---|---|
| 25 | Bore size in mm (20/25/32/40). |
| ×350 | Nominal stroke length in mm. |
| -40 | Adjustable amount: trim the end to a 310–350 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 MALJ25X350-40 Is Used
Thin-Film Web Splicer
Fine-tunes the knife extension reach on a roll-to-roll splicing station, trimming the stroke window to 310mm to cut delicate films accurately without over-travel.
Long-Reach Lever Actuator
Drives a long packaging arm where the exact end position must be dialed in on-site; the 206N pull force reliably retracts the mechanism against spring tension.
Replacing the Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X350-40 with MBLJ25X350-40
To replace this MALJ25X350-40, order the direct replacement MBLJ25X350-40. Confirm the 25mm bore, 350mm non-standard stroke, 40mm adjust code, PT thread form, and FA/LB mounting (this series uses no back cover or SDB). Because this is a non-magnet SKU, it cannot hold a sensor; if your upgrade needs sensing, specify an MBLJ with the -S option to use CMSG/DMSG/EMSG switches. Remember the rear adjuster sets the end position but will not hold a load without live air.
At 350mm, the long stroke makes the rod vulnerable to bending under side loads—ensure adequate guiding to prevent rod damage.
Upgrade checklist
- ✓ Order the MBLJ25X350-40 (same bore/stroke/adjust)
- ✓ Same 310–350 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 MBLJ25X350-40 instead of this discontinued model.
Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X350-40 FAQ
Yes, the MALJ25X350-40 is discontinued. The direct replacement is the MBLJ25X350-40, matching the 25mm bore, 350mm stroke, 40mm adjust code, and G1/8 port. The MBLJ upgrades the body to a riveted rolling-packed design from the original threaded covers.
The 350mm stroke exceeds the 25mm bore's 300mm standard maximum, making it non-standard. The 40mm adjust code creates a usable stroke window of 310-350mm.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
Direct Upgrade
The MBLJ25X350-40 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 MALJ25X350-40 → MBLJ25X350-40)
Tell us the quantity and destination — we quote the direct MBLJ25X350-40 replacement with price, stock and lead time, usually within 7-8 hours.