This model is discontinued
AirTAC has phased out the MALJ series. You can still order this code here: we ship the direct replacement MBLJ25X400-100-S, 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 MALJ25X400-100-S
The AirTAC MALJ25 Adjustable Mini Air Cylinder MALJ25X400-100-S is a double-acting aluminum mini cylinder with a rear adjustable-stroke stopper: you can trim up to 100 mm, giving a usable end-position window from 300 to 400 mm. This model is discontinued — the direct replacement is the MBLJ25X400-100-S.
- BoreØ25 mm
- Stroke400 mm
- Adjust window300–400 mm
- Port sizeG1/8
- Rod threadM10×1.25
- StatusDiscontinued → MBLJ25X400-100-S
- 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 MALJ25X400-100-S
The AirTAC MALJ25X400-100-S is a discontinued double-acting, double-rod adjustable-stroke mini cylinder. It has a 25 mm bore, a 400 mm stroke, and a 100 mm rear adjuster, creating a usable end-position window of 300-400 mm. The direct replacement is the MBLJ25X400-100-S, matching the bore, stroke, force, and G1/8 port.
This 400 mm stroke exceeds the 300 mm standard maximum for bore 25, meaning it was a made-to-order item requiring careful rod-bending and side-load management. The rear adjuster is a travel stop to fine-tune reach without external shims, but it will not hold a load without live air. The fixed rubber bumper absorbs end impact, and this -S magnet variant uses the legacy CS1-M / DS1-M switches, whereas the MBLJ upgrade uses CMSG / DMSG / EMSG sensors and a riveted rolling-packed body instead of threaded covers.
Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X400-100-S Technical Specifications
| Model | Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X400-100-S |
|---|---|
| Series | MALJ adjustable-stroke mini cylinder (discontinued) |
| Replacement | MBLJ25X400-100-S |
| Bore size | Ø25 mm |
| Stroke | 400 mm |
| Adjustable window | 300 – 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 MBLJ25X400-100-S 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 MBLJ25X400-100-S matches these values.
Model Code: Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X400-100-S
| MALJ | Adjustable-stroke aluminum mini cylinder, double acting (discontinued). |
|---|---|
| 25 | Bore size in mm (20/25/32/40). |
| ×400 | Nominal stroke length in mm. |
| -100 | Adjustable amount: trim the end to a 300–400 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 MALJ25X400-100-S Is Used
Long-Reach Pallet Push-Off
Pushes warped pallets out of a packaging cell using the full 400 mm stroke, trimming up to 100 mm at the rear to clear machine guards without adding external stop blocks.
Carton Flap Plow
Deflects major carton flaps on a filling line, using the rear stopper to set the exact 350 mm plow depth for various box widths without swapping the cylinder.
Replacing the Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X400-100-S with MBLJ25X400-100-S
To replace the MALJ25X400-100-S, order the direct replacement MBLJ25X400-100-S. Confirm the 25 mm bore, 400 mm stroke, 100 mm adjust code, G1/8 port, M10x1.25 rod thread, and FA/LB mounting (no back cover or SDB). The adjuster is a travel stop, not a lock.
Because this 400 mm stroke exceeds the 300 mm standard maximum, it is a non-standard, made-to-order length. A 10 mm rod extending at this length is highly susceptible to bending under side loads. Use hardened guide rails to prevent rod damage and ensure the external load does not rely on the rear stopper for holding without air pressure.
Upgrade checklist
- ✓ Order the MBLJ25X400-100-S (same bore/stroke/adjust)
- ✓ Same 300–400 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 MBLJ25X400-100-S instead of this discontinued model.
Airtac MALJ25 Adjustable Mini Air Cylinder MALJ25X400-100-S FAQ
Yes, it is discontinued. The direct replacement is the MBLJ25X400-100-S, matching the 25 mm bore, 400 mm stroke, 100 mm adjust code, and G1/8 port. The MBLJ upgrades the body to a riveted rolling-packed design and changes the magnet switches from CS1-M / DS1-M to CMSG / DMSG / EMSG.
The usable adjustable window is 300-400 mm (400 mm stroke minus the 100 mm adjust code). The rear adjuster is a travel stop, not a lock, and the fixed rubber bumper softens end impact without providing air-cushioning.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
Direct Upgrade
The MBLJ25X400-100-S 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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