This model is discontinued
AirTAC has phased out the MALJ series. You can still order this code here: we ship the direct replacement MBLJ40X20-10S, 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 MALJ40 Adjustable Mini Cylinder MALJ40X20-10-S
The AirTAC Airtac MALJ40 Adjustable Mini Cylinder MALJ40X20-10-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 10 to 20 mm. This model is discontinued — the direct replacement is the MBLJ40X20-10-S.
- BoreØ40 mm
- Stroke20 mm
- Adjust window10–20 mm
- Port sizeG1/4
- Rod threadM12×1.25
- StatusDiscontinued → MBLJ40X20-10-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 MALJ40 Adjustable Mini Cylinder MALJ40X20-10-S
The AirTAC MALJ40X20-10-S is a discontinued double-acting mini cylinder with a 40mm bore and a 10mm rear adjustable stroke stopper. This gives a usable travel window of 10-20mm. The direct replacement is the MBLJ40X20-10-S, matching the bore, stroke, force, G1/4 port, and mounting.
The rear adjuster sets the end position but is a travel stop, not a lock, meaning it will not hold a load without live air. This SKU includes a magnet (-S) for CS1-M or DS1-M switches, whereas the MBLJ replacement uses CMSG, DMSG, or EMSG sensors. The MALJ uses threaded covers and a fixed rubber bumper, while the newer MBLJ features a riveted rolling-packed body.
Airtac MALJ40 Adjustable Mini Cylinder MALJ40X20-10-S Technical Specifications
| Model | Airtac MALJ40 Adjustable Mini Cylinder MALJ40X20-10-S |
|---|---|
| Series | MALJ adjustable-stroke mini cylinder (discontinued) |
| Replacement | MBLJ40X20-10-S |
| Bore size | Ø40 mm |
| Stroke | 20 mm |
| Adjustable window | 10 – 20 mm |
| Acting type | Double acting, adjustable stroke |
| Port size | G1/4 |
| Rod thread | M12×1.25 |
| 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 500 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 MBLJ40X20-10-S carries the same ratings.
Theoretical Output Force (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 528 N | 528 N |
| 0.7 MPa | 739 N | — |
| Max (@1.0 MPa) | 108 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 MBLJ40X20-10-S matches these values.
Model Code: Airtac MALJ40 Adjustable Mini Cylinder MALJ40X20-10-S
| MALJ | Adjustable-stroke aluminum mini cylinder, double acting (discontinued). |
|---|---|
| 40 | Bore size in mm (20/25/32/40). |
| ×20 | Nominal stroke length in mm. |
| -10 | Adjustable amount: trim the end to a 10–20 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 MALJ40 Adjustable Mini Cylinder MALJ40X20-10-S Is Used
Connector Insertion Travel
Sets exact insertion depth for pressing pin headers into plastic housings, preventing over-travel and cracked resin using the rear stopper.
Dispenser Valve Tare
Trims the retracted position of a micro-dosing valve by up to 10mm, keeping the nozzle clear of the fixture without adding external spacers.
Replacing the Airtac MALJ40 Adjustable Mini Cylinder MALJ40X20-10-S with MBLJ40X20-10-S
To replace the MALJ40X20-10-S, order the exact direct replacement MBLJ40X20-10-S. Confirm the 40mm bore, 20mm stroke, 10mm adjust code, G1/4 port, PT thread, and FA or LB mounting. The original has no back cover or SDB option. The -S magnet changes sensor families from the old CS1-M/DS1-M to the new CMSG/DMSG/EMSG. The adjuster is a stop, not a lock.
Upgrade checklist
- ✓ Order the MBLJ40X20-10-S (same bore/stroke/adjust)
- ✓ Same 10–20 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 MBLJ40X20-10-S instead of this discontinued model.
Airtac MALJ40 Adjustable Mini Cylinder MALJ40X20-10-S FAQ
Yes, the MALJ40X20-10-S is discontinued. The direct replacement is the MBLJ40X20-10-S, which matches the 40mm bore, 20mm stroke, 10mm adjust code, G1/4 port, and FA/LB mounting. The MBLJ upgrades the body to a riveted rolling-packed design and changes the magnet sensors from CS1-M/DS1-M to CMSG/DMSG/EMSG.
The usable stroke window is 10-20mm. The rear adjuster is a travel stop that sets the end position but does not hold the load without live air. It uses a fixed rubber bumper, not an adjustable air cushion.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
Direct Upgrade
The MBLJ40X20-10-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
Request a Quote (Airtac MALJ40 Adjustable Mini Cylinder MALJ40X20-10-S → MBLJ40X20-10-S)
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