This model is discontinued
AirTAC has phased out the MALJ series. You can still order this code here: we ship the direct replacement MBLJ20X140-20-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 MALJ20X140-20-S
The AirTAC Airtac MALJ20 Adjustable Mini Cylinder MALJ20X140-20-S is a double-acting aluminum mini cylinder with a rear adjustable-stroke stopper: you can trim up to 20 mm, giving a usable end-position window from 120 to 140 mm. This model is discontinued — the direct replacement is the MBLJ20X140-20-S.
- BoreØ20 mm
- Stroke140 mm
- Adjust window120–140 mm
- Port sizeG1/8
- Rod threadM8×1.25
- StatusDiscontinued → MBLJ20X140-20-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 MALJ20X140-20-S
The AirTAC MALJ20X140-20-S is a discontinued double-acting, double-rod mini cylinder with a rear adjustable stroke. The 20mm adjuster code lets you trim up to 20mm at the rear, creating a usable travel window of 120-140mm.
The direct replacement is the MBLJ20X140-20-S, keeping the same bore, stroke, force, and mounting. The MALJ uses threaded covers and an -S magnet for CS1-M/DS1-M switches, while the MBLJ upgrades to a riveted rolling-packed body and CMSG/DMSG/EMSG sensors. The rear adjuster is a travel stop, not a lock; it sets the end position but will not hold a load without live air.
Airtac MALJ20 Adjustable Mini Cylinder MALJ20X140-20-S Technical Specifications
| Model | Airtac MALJ20 Adjustable Mini Cylinder MALJ20X140-20-S |
|---|---|
| Series | MALJ adjustable-stroke mini cylinder (discontinued) |
| Replacement | MBLJ20X140-20-S |
| Bore size | Ø20 mm |
| Stroke | 140 mm |
| Adjustable window | 120 – 140 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 MBLJ20X140-20-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 MBLJ20X140-20-S matches these values.
Model Code: Airtac MALJ20 Adjustable Mini Cylinder MALJ20X140-20-S
| MALJ | Adjustable-stroke aluminum mini cylinder, double acting (discontinued). |
|---|---|
| 20 | Bore size in mm (20/25/32/40). |
| ×140 | Nominal stroke length in mm. |
| -20 | Adjustable amount: trim the end to a 120–140 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 MALJ20X140-20-S Is Used
Dispenser Nozzle Height
Fine-tunes the Z-axis stop for a syringe nozzle applying silicone to machined housings, preventing the 8mm rod from crashing into hard fixtures.
Wire Crimp Tooling
Adjusts the crimp die reach on a terminal press, allowing the 132N pull to seat contacts accurately without swapping mechanical spacers.
Replacing the Airtac MALJ20 Adjustable Mini Cylinder MALJ20X140-20-S with MBLJ20X140-20-S
To replace the MALJ20X140-20-S, order the direct replacement MBLJ20X140-20-S. Confirm the 20mm bore, 140mm stroke, 20mm adjust code, G1/8 port, PT thread, and FA/LB mounting (no back cover or SDB). The -S magnet requires switching from CS1-M/DS1-M to CMSG/DMSG/EMSG switches. The adjuster sets the end position but does not hold load without air; use an external lock for held loads. At 140mm stroke, watch rod-bending from side loads.
Both use the same G1/8 port.
Upgrade checklist
- ✓ Order the MBLJ20X140-20-S (same bore/stroke/adjust)
- ✓ Same 120–140 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 MBLJ20X140-20-S instead of this discontinued model.
Airtac MALJ20 Adjustable Mini Cylinder MALJ20X140-20-S FAQ
Yes, the MALJ20X140-20-S is discontinued. The direct replacement is the MBLJ20X140-20-S, matching the 20mm bore, 140mm stroke, 20mm adjust code, and G1/8 port. You will need to upgrade your switches from the old CS1-M/DS1-M to the CMSG/DMSG/EMSG family.
The 20mm adjuster is a travel stop that lets you shorten the end position, creating a usable stroke window of 120-140mm. It is not a lock and will not hold a load without live air pressure.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
Direct Upgrade
The MBLJ20X140-20-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 MALJ20 Adjustable Mini Cylinder MALJ20X140-20-S → MBLJ20X140-20-S)
Tell us the quantity and destination — we quote the direct MBLJ20X140-20-S replacement with price, stock and lead time, usually within 7-8 hours.