This model is discontinued
AirTAC has phased out the MALJ series. You can still order this code here: we ship the direct replacement MBLJ20X400-10-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 MALJ20 Adjustable Mini Cylinder MALJ20X400-10-S
The AirTAC Airtac MALJ20 Adjustable Mini Cylinder MALJ20X400-10-S is a double-acting aluminum mini cylinder with a rear adjustable-stroke stopper: you can trim up to 10 mm, giving a usable end-position window from 390 to 400 mm. This model is discontinued — the direct replacement is the MBLJ20X400-10-S.
- BoreØ20 mm
- Stroke400 mm
- Adjust window390–400 mm
- Port sizeG1/8
- Rod threadM8×1.25
- StatusDiscontinued → MBLJ20X400-10-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 MALJ20 Adjustable Mini Cylinder MALJ20X400-10-S
The AirTAC MALJ20X400-10-S is a discontinued double-acting, double-rod mini cylinder with a 10 mm rear stroke adjuster. This non-standard 400 mm stroke unit provides a usable travel window of 390-400 mm. The direct replacement is the MBLJ20X400-10-S, matching the bore, port, and mounting.
This -S variant carries a magnet for CS1-M or DS1-M reed switches; the MBLJ upgrade shifts to CMSG/DMSG/EMSG sensors. The rear adjuster is a travel stop, not a lock, so it cannot hold a load without live air. The original MALJ uses threaded covers and a fixed rubber bumper, while the MBLJ replacement features a riveted rolling-packed body.
Airtac MALJ20 Adjustable Mini Cylinder MALJ20X400-10-S Technical Specifications
| Model | Airtac MALJ20 Adjustable Mini Cylinder MALJ20X400-10-S |
|---|---|
| Series | MALJ adjustable-stroke mini cylinder (discontinued) |
| Replacement | MBLJ20X400-10-S |
| Bore size | Ø20 mm |
| Stroke | 400 mm |
| Adjustable window | 390 – 400 mm |
| Acting type | Double acting, adjustable stroke |
| Port size | G1/8 |
| Rod thread | M8×1.25 |
| 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 MBLJ20X400-10-S carries the same ratings.
Theoretical Output Force (Ø20mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 132 N | 132 N |
| 0.7 MPa | 185 N | — |
| Max (@1.0 MPa) | 27 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 MBLJ20X400-10-S matches these values.
Model Code: Airtac MALJ20 Adjustable Mini Cylinder MALJ20X400-10-S
| MALJ | Adjustable-stroke aluminum mini cylinder, double acting (discontinued). |
|---|---|
| 20 | Bore size in mm (20/25/32/40). |
| ×400 | Nominal stroke length in mm. |
| -10 | Adjustable amount: trim the end to a 390–400 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 MALJ20 Adjustable Mini Cylinder MALJ20X400-10-S Is Used
Fiber Optic Cable Stripping
Fine-tune the 10 mm rear stop on a 400 mm stroke to position a stripping blade precisely, preventing jacket tears while the cylinder retracts at speed.
Thin-Wall Tube Push-off
Eject thin-wall aluminum tubes from a machining center by trimming the end position, ensuring the 132 N pull retracts the rod cleanly without buckling the part.
Replacing the Airtac MALJ20 Adjustable Mini Cylinder MALJ20X400-10-S with MBLJ20X400-10-S
To replace this MALJ20X400-10-S, order the MBLJ20X400-10-S. Confirm the G1/8 port, M8x1.25 rod thread, and FA or LB mounting (no back cover or SDB is used). Retain the -S magnet, but note the sensor family changes from CS1-M/DS1-M to CMSG/DMSG/EMSG. The 10 mm adjuster sets end position but does not lock the load.
At 400 mm, this long stroke risks rod bending under side loads, so guide the load externally. If you need less force, no smaller MALJ bore exists.
Upgrade checklist
- ✓ Order the MBLJ20X400-10-S (same bore/stroke/adjust)
- ✓ Same 390–400 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 MBLJ20X400-10-S instead of this discontinued model.
Airtac MALJ20 Adjustable Mini Cylinder MALJ20X400-10-S FAQ
Yes, the MALJ20X400-10-S is discontinued. The direct replacement is the MBLJ20X400-10-S, which matches the 20 mm bore, 400 mm stroke, 10 mm adjuster, G1/8 port, and mounting. You must upgrade your sensors from CS1-M/DS1-M to CMSG/DMSG/EMSG.
The usable adjustable window is 390-400 mm. The rear screw is a travel stop only and does not hold the load without air pressure.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
Direct Upgrade
The MBLJ20X400-10-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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