This model is discontinued
AirTAC has phased out the MALJ series. You can still order this code here: we ship the direct replacement MBLJ20X350-75, 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 MALJ20X350-75
The AirTAC Airtac MALJ20 Adjustable Mini Cylinder MALJ20X350-75 is a double-acting aluminum mini cylinder with a rear adjustable-stroke stopper: you can trim up to 75 mm, giving a usable end-position window from 275 to 350 mm. This model is discontinued — the direct replacement is the MBLJ20X350-75.
- BoreØ20 mm
- Stroke350 mm
- Adjust window275–350 mm
- Port sizeG1/8
- Rod threadM8×1.25
- StatusDiscontinued → MBLJ20X350-75
- 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 MALJ20X350-75
The AirTAC MALJ20X350-75 is a discontinued double-acting, adjustable-stroke mini cylinder. It features a 20mm bore and a non-standard 350mm stroke (exceeding the 300mm standard, making it a made-to-order item). The rear screw stopper lets you trim up to 75mm, yielding a usable travel window of 275-350mm. The direct replacement is the MBLJ20X350-75, matching bore, stroke, adjust code, and G1/8 port.
Two critical design facts: first, the adjuster is a travel stop, not a lock; it sets the end position but cannot hold a load without live air pressure. Second, this no-magnet SKU cannot accept a position sensor, whereas upgrading to the MBLJ allows modern CMSG/DMSG/EMSG switches. The MALJ uses threaded covers and a fixed rubber bumper, while the MBLJ features a riveted rolling-packed body. The bumper softens end impact only; it is not an adjustable air cushion.
Airtac MALJ20 Adjustable Mini Cylinder MALJ20X350-75 Technical Specifications
| Model | Airtac MALJ20 Adjustable Mini Cylinder MALJ20X350-75 |
|---|---|
| Series | MALJ adjustable-stroke mini cylinder (discontinued) |
| Replacement | MBLJ20X350-75 |
| Bore size | Ø20 mm |
| Stroke | 350 mm |
| Adjustable window | 275 – 350 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 MBLJ20X350-75 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 MBLJ20X350-75 matches these values.
Model Code: Airtac MALJ20 Adjustable Mini Cylinder MALJ20X350-75
| MALJ | Adjustable-stroke aluminum mini cylinder, double acting (discontinued). |
|---|---|
| 20 | Bore size in mm (20/25/32/40). |
| ×350 | Nominal stroke length in mm. |
| -75 | Adjustable amount: trim the end to a 275–350 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 MALJ20X350-75 Is Used
Carton Flap Folder
Trim the 75mm rear stopper to time foldingMechanisms on packaging lines, ensuring the stroke window matches varying box heights precisely.
Long-Reach Part Ejector
Eject molded plastic parts from deep molds using the full 350mm extension, relying on the fixed rubber bumper to absorb the end-of-stroke impact.
Replacing the Airtac MALJ20 Adjustable Mini Cylinder MALJ20X350-75 with MBLJ20X350-75
To replace the MALJ20X350-75, order the direct replacement MBLJ20X350-75. Confirm the 20mm bore, 350mm non-standard stroke, 75mm adjust code, G1/8 port, and M8x1.25 rod-end thread. Mounting is FA or LB only (no back cover or SDB). Because this SKU lacks the -S magnet, it cannot take a sensor; the MBLJ upgrade supports CMSG/DMSG/EMSG switches. Remember the rear adjuster is a stop, not a lock.
At 350mm, the 8mm rod is highly susceptible to bending under side loads; use a guide rod or external guide to prevent rod damage.
Upgrade checklist
- ✓ Order the MBLJ20X350-75 (same bore/stroke/adjust)
- ✓ Same 275–350 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 MBLJ20X350-75 instead of this discontinued model.
Airtac MALJ20 Adjustable Mini Cylinder MALJ20X350-75 FAQ
Yes, the MALJ20X350-75 is discontinued. The direct replacement is the MBLJ20X350-75, which matches the 20mm bore, 350mm stroke, 75mm adjust code, and G1/8 port. The MBLJ upgrades the body to a riveted rolling-packed design from the MALJ's threaded covers.
The 75mm adjuster is a travel stop that lets you shorten the end position, creating a usable stroke window of 275-350mm. It does not lock the load without air pressure.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
Direct Upgrade
The MBLJ20X350-75 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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