This model is discontinued
AirTAC has phased out the MALJ series. You can still order this code here: we ship the direct replacement MBLJ20X65-30-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 MALJ20X65-30-S
The AirTAC Airtac MALJ20 Adjustable Mini Cylinder MALJ20X65-30-S is a double-acting aluminum mini cylinder with a rear adjustable-stroke stopper: you can trim up to 30 mm, giving a usable end-position window from 35 to 65 mm. This model is discontinued — the direct replacement is the MBLJ20X65-30-S.
- BoreØ20 mm
- Stroke65 mm
- Adjust window35–65 mm
- Port sizeG1/8
- Rod threadM8×1.25
- StatusDiscontinued → MBLJ20X65-30-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 MALJ20X65-30-S
The AirTAC MALJ20X65-30-S is a discontinued double-acting, double-rod mini cylinder with a 20mm bore and 65mm stroke. It features a rear adjuster that lets you trim up to 30mm, creating a usable end-position window of 35-65mm without adding external stops. The direct replacement is the MBLJ20X65-30-S, matching the bore, stroke, force, G1/8 port, and mounting.
This -S SKU includes a magnet for CS1-M or DS1-M switches. The MBLJ upgrade shifts to CMSG/DMSG/EMSG sensors and uses a riveted rolling-packed body instead of the MALJ's threaded covers. The adjuster is a travel stop, not a lock, and the fixed rubber bumper softens end impact without providing air-cushion adjustment.
Airtac MALJ20 Adjustable Mini Cylinder MALJ20X65-30-S Technical Specifications
| Model | Airtac MALJ20 Adjustable Mini Cylinder MALJ20X65-30-S |
|---|---|
| Series | MALJ adjustable-stroke mini cylinder (discontinued) |
| Replacement | MBLJ20X65-30-S |
| Bore size | Ø20 mm |
| Stroke | 65 mm |
| Adjustable window | 35 – 65 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 MBLJ20X65-30-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 MBLJ20X65-30-S matches these values.
Model Code: Airtac MALJ20 Adjustable Mini Cylinder MALJ20X65-30-S
| MALJ | Adjustable-stroke aluminum mini cylinder, double acting (discontinued). |
|---|---|
| 20 | Bore size in mm (20/25/32/40). |
| ×65 | Nominal stroke length in mm. |
| -30 | Adjustable amount: trim the end to a 35–65 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 MALJ20X65-30-S Is Used
Dispenser Nozzle Height Trim
Fine-tune the nozzle landing distance on a adhesive dispenser, trimming up to 30mm at the rear stopper to accommodate different circuit board thicknesses.
Small Part Ejector Stroke
Adjust the ejection reach on a stamping press outfeed, ensuring the 8mm rod clears varying die heights while the fixed rubber bumper absorbs the end impact.
Replacing the Airtac MALJ20 Adjustable Mini Cylinder MALJ20X65-30-S with MBLJ20X65-30-S
To replace the MALJ20X65-30-S, specify the MBLJ20X65-30-S to keep the 20mm bore, 65mm stroke, 30mm adjust code, G1/8 PT port, and FA/LB mounting (no back cover or SDB). Update your sensor inventory: the MALJ -S magnet works with CS1-M/DS1-M switches, while the MBLJ uses CMSG/DMSG/EMSG. Remember the rear adjuster sets the end position but will not hold a load without live air.
At 65mm stroke, keep rod side-load minimal to avoid bending the 8mm rod.
Upgrade checklist
- ✓ Order the MBLJ20X65-30-S (same bore/stroke/adjust)
- ✓ Same 35–65 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 MBLJ20X65-30-S instead of this discontinued model.
Airtac MALJ20 Adjustable Mini Cylinder MALJ20X65-30-S FAQ
Yes, the MALJ20X65-30-S is discontinued. The direct replacement is the MBLJ20X65-30-S, which matches the 20mm bore, 65mm stroke, 30mm adjust code, and G1/8 port. You must update your sensors, as the MALJ -S magnet uses CS1-M/DS1-M switches while the MBLJ uses CMSG/DMSG/EMSG.
The usable adjustable window is 35-65mm, set by trimming up to 30mm at the rear. The rear adjuster is a travel stop, not a lock, so it will not hold a load without live air pressure.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
Direct Upgrade
The MBLJ20X65-30-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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