This model is discontinued
AirTAC has phased out the MALJ series. You can still order this code here: we ship the direct replacement MBLJ20X135-75-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 MALJ20X135-75-S
The AirTAC Airtac MALJ20 Adjustable Mini Cylinder MALJ20X135-75-S 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 60 to 135 mm. This model is discontinued — the direct replacement is the MBLJ20X135-75-S.
- BoreØ20 mm
- Stroke135 mm
- Adjust window60–135 mm
- Port sizeG1/8
- Rod threadM8×1.25
- StatusDiscontinued → MBLJ20X135-75-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 MALJ20X135-75-S
The AirTAC MALJ20X135-75-S is a discontinued double-acting double-rod mini cylinder with a rear adjustable stroke stopper. It trims up to 75mm at the rear, giving a usable window of 60-135mm. The direct replacement is the MBLJ20X135-75-S, matching the 20mm bore, 135mm stroke, G1/8 port, and force.
The adjuster sets the end position but is a travel stop, not a lock. The MALJ uses threaded covers and a CS1-M/DS1-M magnet sensor, whereas the MBLJ upgrade features a riveted rolling-packed body and CMSG/DMSG/EMSG sensors.
Airtac MALJ20 Adjustable Mini Cylinder MALJ20X135-75-S Technical Specifications
| Model | Airtac MALJ20 Adjustable Mini Cylinder MALJ20X135-75-S |
|---|---|
| Series | MALJ adjustable-stroke mini cylinder (discontinued) |
| Replacement | MBLJ20X135-75-S |
| Bore size | Ø20 mm |
| Stroke | 135 mm |
| Adjustable window | 60 – 135 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 MBLJ20X135-75-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 MBLJ20X135-75-S matches these values.
Model Code: Airtac MALJ20 Adjustable Mini Cylinder MALJ20X135-75-S
| MALJ | Adjustable-stroke aluminum mini cylinder, double acting (discontinued). |
|---|---|
| 20 | Bore size in mm (20/25/32/40). |
| ×135 | Nominal stroke length in mm. |
| -75 | Adjustable amount: trim the end to a 60–135 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 MALJ20X135-75-S Is Used
Wire Harness Crimping
Adjust the end position to accommodate different terminal sizes in wire harness crimping presses, ensuring consistent crimp depth without swapping cylinders.
Small Parts Ejector
Fine-tune the ejection stroke on a pick-and-place nozzle changer, using the rear stop to prevent the 8mm rod from overextending and stressing delicate components.
Replacing the Airtac MALJ20 Adjustable Mini Cylinder MALJ20X135-75-S with MBLJ20X135-75-S
To replace the MALJ20X135-75-S, order the direct replacement MBLJ20X135-75-S. Confirm the 20mm bore, 135mm stroke, 75mm adjust code, PT G1/8 port, M8x1.25 rod thread, and FA/LB mounting (no back cover or SDB). The -S magnet changes from CS1-M/DS1-M to CMSG/DMSG/EMSG on the MBLJ. The rear adjuster is a stop, not a lock.
At 135mm stroke, watch for rod bending under side loads; keep the load axially aligned to prevent premature seal wear.
Upgrade checklist
- ✓ Order the MBLJ20X135-75-S (same bore/stroke/adjust)
- ✓ Same 60–135 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 MBLJ20X135-75-S instead of this discontinued model.
Airtac MALJ20 Adjustable Mini Cylinder MALJ20X135-75-S FAQ
Yes, the MALJ20X135-75-S is discontinued. The direct replacement is the MBLJ20X135-75-S, which matches the 20mm bore, 135mm stroke, 75mm adjust code, and G1/8 port. The MBLJ upgrades the body to a riveted rolling-packed design and changes the -S magnet sensors from CS1-M/DS1-M to CMSG/DMSG/EMSG.
The 75mm adjust code lets you trim the rear end position, creating a usable stroke window of 60-135mm. The adjuster is a travel stop, not a lock, and it uses a fixed rubber bumper, not an adjustable cushion.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
Direct Upgrade
The MBLJ20X135-75-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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