This model is discontinued
AirTAC has phased out the MALJ series. You can still order this code here: we ship the direct replacement MBLJ20X50-10S, 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 MALJ20 Adjustable Mini Cylinder MALJ20X50-10-S
The AirTAC Airtac MALJ20 Adjustable Mini Cylinder MALJ20X50-10-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 40 to 50 mm. This model is discontinued — the direct replacement is the MBLJ20X50-10-S.
- BoreØ20 mm
- Stroke50 mm
- Adjust window40–50 mm
- Port sizeG1/8
- Rod threadM8×1.25
- StatusDiscontinued → MBLJ20X50-10-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 MALJ20X50-10-S
The AirTAC MALJ20X50-10-S is a discontinued 20mm bore, 50mm stroke, double-acting mini cylinder with a 10mm rear adjustable stop. This gives a usable end-position window of 40-50mm. The direct replacement is the MBLJ20X50-10-S, matching the bore, stroke, G1/8 port, and FA/LB mounting.
This -S magnet variant uses older CS1-M/DS1-M switches, whereas the MBLJ upgrade uses CMSG/DMSG/EMSG sensors. The MALJ features threaded covers, while the MBLJ replacement has a riveted rolling-packed body. Remember the adjuster is a travel stop, not a lock; it sets the end position but will not hold a load without live air. Impact is softened by a fixed rubber bumper, not an adjustable air cushion.
Airtac MALJ20 Adjustable Mini Cylinder MALJ20X50-10-S Technical Specifications
| Model | Airtac MALJ20 Adjustable Mini Cylinder MALJ20X50-10-S |
|---|---|
| Series | MALJ adjustable-stroke mini cylinder (discontinued) |
| Replacement | MBLJ20X50-10-S |
| Bore size | Ø20 mm |
| Stroke | 50 mm |
| Adjustable window | 40 – 50 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 MBLJ20X50-10-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 MBLJ20X50-10-S matches these values.
Model Code: Airtac MALJ20 Adjustable Mini Cylinder MALJ20X50-10-S
| MALJ | Adjustable-stroke aluminum mini cylinder, double acting (discontinued). |
|---|---|
| 20 | Bore size in mm (20/25/32/40). |
| ×50 | Nominal stroke length in mm. |
| -10 | Adjustable amount: trim the end to a 40–50 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 MALJ20X50-10-S Is Used
Dispenser Nozzle Height Trim
Fine-tune the 10mm rear stop to adjust the syringe nozzle height on a glue dispenser, ensuring the tip clears uneven substrate heights without remounting hardware.
Small Part Ejector Pin
Act as an ejection pin for small stamped terminals, using the fixed rubber bumper to soften the end impact and the 132N pull force to retract the pin reliably.
Replacing the Airtac MALJ20 Adjustable Mini Cylinder MALJ20X50-10-S with MBLJ20X50-10-S
To replace this MALJ20X50-10-S, order the direct replacement MBLJ20X50-10-S. Confirm the 20mm bore, 50mm stroke, 10mm adjust code, PT G1/8 port, M8x1.25 rod thread, and FA/LB mounting (no back cover or SDB). The -S magnet means you must upgrade from CS1-M/DS1-M to CMSG/DMSG/EMSG switches. The 10mm adjuster is a travel stop, not a lock, so add an external lock for held loads.
Upgrade checklist
- ✓ Order the MBLJ20X50-10-S (same bore/stroke/adjust)
- ✓ Same 40–50 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 MBLJ20X50-10-S instead of this discontinued model.
Airtac MALJ20 Adjustable Mini Cylinder MALJ20X50-10-S FAQ
Yes, the MALJ20X50-10-S is discontinued. The direct replacement is the MBLJ20X50-10-S, matching the 20mm bore, 50mm stroke, 10mm adjust code, G1/8 port, and FA/LB mounting. The MBLJ upgrades the body to a riveted rolling-packed design and changes the magnet switches from CS1-M/DS1-M to CMSG/DMSG/EMSG.
The 10mm adjust code lets you trim the rear end position, creating a usable 40-50mm stroke window. The adjuster is a travel stop, not a lock, and impact is handled by a fixed rubber bumper.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
Direct Upgrade
The MBLJ20X50-10-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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