This model is discontinued
AirTAC has phased out the MALJ series. You can still order this code here: we ship the direct replacement MBLJ20X75-20, 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 MALJ20X75-20
The AirTAC Airtac MALJ20 Adjustable Mini Cylinder MALJ20X75-20 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 55 to 75 mm. This model is discontinued — the direct replacement is the MBLJ20X75-20.
- BoreØ20 mm
- Stroke75 mm
- Adjust window55–75 mm
- Port sizeG1/8
- Rod threadM8×1.25
- StatusDiscontinued → MBLJ20X75-20
- 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 MALJ20X75-20
The AirTAC MALJ20X75-20 is a discontinued double-acting, double-rod mini cylinder with a rear adjustable stroke stopper. The 20 mm adjust code lets you trim the end position by up to 20 mm, providing a usable stroke window of 55-75 mm. The direct replacement is the MBLJ20X75-20, matching the 20 mm bore, 75 mm stroke, G1/8 port, and force ratings.
This SKU has no -S magnet, so it cannot accept a position sensor. The rear adjuster is a travel stop, not a lock; it sets the end position but will not hold a load without live air. End impact is softened by a fixed rubber bumper, as there is no adjustable air cushion. Upgrading to the MBLJ20X75-20 changes the construction from threaded covers to a riveted rolling-packed body, and if a sensor is later needed, the MBLJ uses CMSG/DMSG/EMSG switches instead of the older CS1-M/DS1-M family.
Airtac MALJ20 Adjustable Mini Cylinder MALJ20X75-20 Technical Specifications
| Model | Airtac MALJ20 Adjustable Mini Cylinder MALJ20X75-20 |
|---|---|
| Series | MALJ adjustable-stroke mini cylinder (discontinued) |
| Replacement | MBLJ20X75-20 |
| Bore size | Ø20 mm |
| Stroke | 75 mm |
| Adjustable window | 55 – 75 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 MBLJ20X75-20 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 MBLJ20X75-20 matches these values.
Model Code: Airtac MALJ20 Adjustable Mini Cylinder MALJ20X75-20
| MALJ | Adjustable-stroke aluminum mini cylinder, double acting (discontinued). |
|---|---|
| 20 | Bore size in mm (20/25/32/40). |
| ×75 | Nominal stroke length in mm. |
| -20 | Adjustable amount: trim the end to a 55–75 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 MALJ20X75-20 Is Used
Micro-Dispense Valve
Fine-tune the shot size on an adhesive micro-dispense valve by trimming 20 mm off the rear stop, ensuring the 8 mm rod retracts cleanly without stressing the glass syringe.
Small Part Ejector
Adjust the kick-out distance on a small part ejection chute in a watch-movement assembly machine, using the fixed rubber bumper to soften the repeated end impact.
Replacing the Airtac MALJ20 Adjustable Mini Cylinder MALJ20X75-20 with MBLJ20X75-20
To replace the MALJ20X75-20, order the exact direct replacement MBLJ20X75-20. Confirm the 20 mm bore, 75 mm stroke, 20 mm adjust code, G1/8 PT port, M8x1.25 rod thread, and Basic/FA/LB mounting (there is no back cover or SDB option). Because this SKU lacks the -S magnet, it cannot hold a sensor; the MBLJ upgrade uses CMSG/DMSG/EMSG switches. Remember the adjuster is a stop, not a lock, so add an external lock for held loads.
At 75 mm stroke, keep side-load minimal to avoid rod bending, as the 8 mm rod is relatively slender.
Upgrade checklist
- ✓ Order the MBLJ20X75-20 (same bore/stroke/adjust)
- ✓ Same 55–75 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 MBLJ20X75-20 instead of this discontinued model.
Airtac MALJ20 Adjustable Mini Cylinder MALJ20X75-20 FAQ
Yes, the MALJ20X75-20 is discontinued. The direct replacement is the MBLJ20X75-20, matching the 20 mm bore, 75 mm stroke, 20 mm adjust code, G1/8 port, and force. The MBLJ upgrades the body from threaded covers to a riveted rolling-packed design.
The 20 mm adjust code lets you trim the rear stop, giving a usable stroke window of 55-75 mm. The adjuster is a travel stop, not a lock.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
Direct Upgrade
The MBLJ20X75-20 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 MALJ20X75-20 → MBLJ20X75-20)
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