This model is discontinued
AirTAC has phased out the MALJ series. You can still order this code here: we ship the direct replacement MBLJ20X100-100, 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 MALJ20 Adjustable Mini Cylinder MALJ20X100-100 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 0 to 100 mm. This model is discontinued — the direct replacement is the MBLJ20X100-100.
The AirTAC MALJ20X100-100 is a discontinued double-acting mini cylinder with a 20mm bore and 100mm stroke. It provides a usable stroke window of 0-100mm via a 100mm rear adjuster. The direct replacement is the MBLJ20X100-100.
This SKU lacks a magnet, so it cannot take a position sensor. The adjuster sets the end position but is a travel stop, not a lock. It uses a fixed rubber bumper, not an adjustable cushion. The old threaded covers upgrade to a riveted body on the MBLJ.
| Model | Airtac MALJ20 Adjustable Mini Cylinder MALJ20X100-100 |
|---|---|
| Series | MALJ adjustable-stroke mini cylinder (discontinued) |
| Replacement | MBLJ20X100-100 |
| Bore size | Ø20 mm |
| Stroke | 100 mm |
| Adjustable window | 0 – 100 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 MBLJ20X100-100 carries the same ratings.
| 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 MBLJ20X100-100 matches these values.
| MALJ | Adjustable-stroke aluminum mini cylinder, double acting (discontinued). |
|---|---|
| 20 | Bore size in mm (20/25/32/40). |
| ×100 | Nominal stroke length in mm. |
| -100 | Adjustable amount: trim the end to a 0–100 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.
Sets a precise 0-100mm nozzle height for epoxy dispensing on electronic relays, preventing crushing with its fixed rubber bumper.
Trims the kick-out stroke on a small plastic mold ejector, ensuring delicate parts clear the cavity safely at 132N pull.
Replace with the MBLJ20X100-100, confirming the 20mm bore, 100mm stroke, 100mm adjust code, G1/8 port, and FA/LB mounting. Since this SKU has no -S magnet, it uses no sensor; an MBLJ upgrade moves to CMSG/DMSG/EMSG switches. The adjuster is a stop, not a lock. If sizing down, the 20mm bore is the smallest available.
Upgrade checklist
Yes, the MALJ20X100-100 is discontinued. The direct replacement is the MBLJ20X100-100, matching the 20mm bore, 100mm stroke, 100mm adjust code, and G1/8 port.
The 100mm adjuster creates a usable stroke window of 0-100mm. It has no -S magnet, so it cannot take a sensor.
Genuine AirTAC parts produced by AirTAC factory.
The MBLJ20X100-100 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 MBLJ20X100-100 replacement with price, stock and lead time, usually within 7-8 hours.