This model is discontinued
AirTAC has phased out the MALJ series. You can still order this code here: we ship the direct replacement MBLJ20X120-10-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 MALJ20X120-10-S
The AirTAC Airtac MALJ20 Adjustable Mini Cylinder MALJ20X120-10-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 110 to 120 mm. This model is discontinued — the direct replacement is the MBLJ20X120-10-S.
- BoreØ20 mm
- Stroke120 mm
- Adjust window110–120 mm
- Port sizeG1/8
- Rod threadM8×1.25
- StatusDiscontinued → MBLJ20X120-10-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 MALJ20X120-10-S
The AirTAC MALJ20X120-10-S is a discontinued double-acting, double-rod mini cylinder with a 120 mm stroke and a 10 mm rear adjuster, giving a usable end-position window of 110-120 mm. The direct replacement is the MBLJ20X120-10-S, matching the 20 mm bore, G1/8 port, and stroke.
This -S SKU includes a magnet for the older CS1-M / DS1-M switches, which changes to CMSG / DMSG / EMSG on the MBLJ upgrade. The original MALJ uses threaded covers, while the MBLJ features a riveted rolling-packed body. The rear adjuster acts as a travel stop to fine-tune depth without external bolts, but it is not a lock and cannot hold a load without live air. End impact is softened by a fixed rubber bumper, not an adjustable air cushion.
Airtac MALJ20 Adjustable Mini Cylinder MALJ20X120-10-S Technical Specifications
| Model | Airtac MALJ20 Adjustable Mini Cylinder MALJ20X120-10-S |
|---|---|
| Series | MALJ adjustable-stroke mini cylinder (discontinued) |
| Replacement | MBLJ20X120-10-S |
| Bore size | Ø20 mm |
| Stroke | 120 mm |
| Adjustable window | 110 – 120 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 MBLJ20X120-10-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 MBLJ20X120-10-S matches these values.
Model Code: Airtac MALJ20 Adjustable Mini Cylinder MALJ20X120-10-S
| MALJ | Adjustable-stroke aluminum mini cylinder, double acting (discontinued). |
|---|---|
| 20 | Bore size in mm (20/25/32/40). |
| ×120 | Nominal stroke length in mm. |
| -10 | Adjustable amount: trim the end to a 110–120 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 MALJ20X120-10-S Is Used
Dispenser Valve Tapping
Fine-tune the rear stopper by 10 mm to lower a glue dispensing nozzle onto an electronics housing, preventing the 8 mm rod from over-traveling and damaging the seat.
Lightweight Parts Ejector
Eject small molded plastic caps from a die, adjusting the retract position to clear the tooling while relying on the fixed rubber bumper to soften the end impact.
Replacing the Airtac MALJ20 Adjustable Mini Cylinder MALJ20X120-10-S with MBLJ20X120-10-S
To replace the MALJ20X120-10-S with the MBLJ20X120-10-S, confirm the 20 mm bore, 120 mm stroke, 10 mm adjust code, G1/8 PT port, and FA/LB mounting (no back cover or SDB is used). The -S magnet requires switching from the old CS1-M / DS1-M switches to the new CMSG / DMSG / EMSG sensors. Stepping down, the next smaller bore is 12 mm (not in this MALJ family), so the nearest step up is the 25 mm bore, which raises push force to 245 N at 0.5 MPa. At 120 mm stroke, the 8 mm rod is highly susceptible to side-load bending, so guide the load carefully.
Upgrade checklist
- ✓ Order the MBLJ20X120-10-S (same bore/stroke/adjust)
- ✓ Same 110–120 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 MBLJ20X120-10-S instead of this discontinued model.
Airtac MALJ20 Adjustable Mini Cylinder MALJ20X120-10-S FAQ
Yes, the MALJ20X120-10-S is discontinued. The direct replacement is the MBLJ20X120-10-S, which matches the 20 mm bore, 120 mm stroke, 10 mm adjuster, and G1/8 port. You must upgrade your sensors, as the old CS1-M / DS1-M switches are replaced by CMSG / DMSG / EMSG switches on the MBLJ.
The -10 code means the rear screw trims up to 10 mm of travel, creating a 110-120 mm stroke window. This adjuster is a travel stop, not a lock, and will not hold a load without live air.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
Direct Upgrade
The MBLJ20X120-10-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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