This model is discontinued
AirTAC has phased out the MALJ series. You can still order this code here: we ship the direct replacement MBLJ25X400-20, 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 MALJ25X400-20
The AirTAC MALJ25 Adjustable Mini Air Cylinder MALJ25X400-20 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 380 to 400 mm. This model is discontinued — the direct replacement is the MBLJ25X400-20.
- BoreØ25 mm
- Stroke400 mm
- Adjust window380–400 mm
- Port sizeG1/8
- Rod threadM10×1.25
- StatusDiscontinued → MBLJ25X400-20
- 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 MALJ25X400-20
The AirTAC MALJ25X400-20 is a discontinued double-acting mini cylinder with a rear adjustable stroke. It trims up to 20 mm, yielding a usable end-position window of 380-400 mm. The direct replacement is the MBLJ25X400-20, matching bore, port, and force.
This non-standard 400 mm stroke exceeds the 300 mm standard limit, requiring made-to-order attention. The adjuster is a travel stop, not a lock; it sets position without holding load. This SKU lacks a magnet (-S), so it cannot take a position sensor. Upgrade facts: the MBLJ uses a riveted rolling-packed body instead of threaded covers, and if you ever need sensors, the MBLJ uses CMSG/DMSG/EMSG switches rather than the older CS1-M/DS1-M.
Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X400-20 Technical Specifications
| Model | Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X400-20 |
|---|---|
| Series | MALJ adjustable-stroke mini cylinder (discontinued) |
| Replacement | MBLJ25X400-20 |
| Bore size | Ø25 mm |
| Stroke | 400 mm |
| Adjustable window | 380 – 400 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 MBLJ25X400-20 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 MBLJ25X400-20 matches these values.
Model Code: Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X400-20
| MALJ | Adjustable-stroke aluminum mini cylinder, double acting (discontinued). |
|---|---|
| 25 | Bore size in mm (20/25/32/40). |
| ×400 | Nominal stroke length in mm. |
| -20 | Adjustable amount: trim the end to a 380–400 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 MALJ25X400-20 Is Used
Variable-depth film cutting
Trim the rear 20 mm on wrapping film shear stations to fine-tune the cut depth against an anvil, preventing blade crash on long 400 mm strokes.
Pallet divider positioning
Set the exact retraction window for pallet lane diverts, using the fixed rubber bumper to soften end impact while guiding loads at up to 343 N at 0.7 MPa.
Replacing the Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X400-20 with MBLJ25X400-20
To replace this MALJ25X400-20, order the exact MBLJ25X400-20 direct. Confirm the G1/8 port, M10x1.25 rod-end thread, and FA/LB mounting (no back cover or SDB allowed). The adjuster is a stop, not a lock; add an external lock for held loads. Since the 400 mm stroke is non-standard and exceeds the 300 mm max, watch for rod bending under side-loads.
Upgrade checklist
- ✓ Order the MBLJ25X400-20 (same bore/stroke/adjust)
- ✓ Same 380–400 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 MBLJ25X400-20 instead of this discontinued model.
Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X400-20 FAQ
Yes, the MALJ25X400-20 is discontinued. The direct replacement is the MBLJ25X400-20, matching the 25 mm bore, 400 mm stroke, 20 mm adjust code, G1/8 port, and FA/LB mounting. The MBLJ upgrades to a riveted rolling-packed body.
The -20 adjust code trims up to 20 mm at the rear, giving a usable stroke window of 380-400 mm. This SKU has no magnet, so it cannot accept a position sensor.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
Direct Upgrade
The MBLJ25X400-20 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 MALJ25X400-20 → MBLJ25X400-20)
Tell us the quantity and destination — we quote the direct MBLJ25X400-20 replacement with price, stock and lead time, usually within 7-8 hours.