This model is discontinued
AirTAC has phased out the MALJ series. You can still order this code here: we ship the direct replacement MBLJ40X20-10, 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).
The AirTAC Airtac MALJ40 Adjustable Mini Cylinder MALJ40X20-10 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.
The AirTAC MALJ40X20-10 is a discontinued double-acting, double-rod mini cylinder with a rear adjustable stroke stopper. It features a 40mm bore and a 20mm stroke, but the rear adjuster lets you trim the end position by up to 10mm, creating a usable stroke window of 10-20mm. The direct replacement is the MBLJ40X20-10, which matches the bore, stroke, adjust code, G1/4 port, and mounting options.
This SKU has no magnet (-S code absent), so it cannot accept a position sensor. The original MALJ uses threaded covers and a fixed rubber bumper, while the MBLJ upgrade features a riveted rolling-packed body. Remember that the rear adjuster is a travel stop, not a lock; it sets the end position but will not hold a load without live air pressure.
| Model | Airtac MALJ40 Adjustable Mini Cylinder MALJ40X20-10 |
|---|---|
| Series | MALJ adjustable-stroke mini cylinder (discontinued) |
| Replacement | MBLJ40X20-10 |
| 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 carries the same ratings.
| 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 matches these values.
| 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.
Set a precise 15mm end position to press wire harness connectors into housings, preventing internal damage to delicate pins during assembly.
Fine-tune the stroke depth on a small press brake to create consistent, shallow bends in thin metal panels without bottoming out the tool.
To replace the discontinued MALJ40X20-10, order the exact direct replacement MBLJ40X20-10. Confirm you are keeping the 40mm bore, 20mm stroke, 10mm adjust code, PT G1/4 port, and M12x1.25 rod thread. Mounting remains Basic, FA, or LB only, as there is no back-cover or SDB option. Since this is a no-magnet SKU, you cannot install a sensor; if you need sensing, the MBLJ upgrade requires CMSG/DMSG/EMSG switches rather than the older CS1-M/DS1-M.
The adjuster is a travel stop, not a lock, so an external lock is required for holding loads without air.
Upgrade checklist
Yes, the MALJ40X20-10 is discontinued. The direct replacement is the MBLJ40X20-10, which matches the 40mm bore, 20mm stroke, 10mm adjust code, G1/4 port, and mounting. The MBLJ upgrades the body to a riveted rolling-packed design from the original threaded covers.
The usable stroke window is 10-20mm, set by trimming up to 10mm at the rear. The adjuster is a travel stop, not a lock.
Genuine AirTAC parts produced by AirTAC factory.
The MBLJ40X20-10 replaces this model 1:1.
MBLJ replacements are processed and dispatched in 3-5 business days.
Most inquiries answered within 7-8 hours.
Tell us the quantity and destination — we quote the direct MBLJ40X20-10 replacement with price, stock and lead time, usually within 7-8 hours.