This model is discontinued
AirTAC has phased out the MALJ series. You can still order this code here: we ship the direct replacement MBLJ20X175-100, 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 MALJ20X175-100
The AirTAC MALJ20 Adjustable Mini Cylinder MALJ20X175-100 is a double-acting aluminum mini cylinder with a rear adjustable-stroke stopper: you can trim up to 100 mm, giving a usable end-position window from 75 to 175 mm. This model is discontinued — the direct replacement is the MBLJ20X175-100.
- BoreØ20 mm
- Stroke175 mm
- Adjust window75–175 mm
- Port sizeG1/8
- Rod threadM8×1.25
- StatusDiscontinued → MBLJ20X175-100
- 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 MALJ20X175-100
The AirTAC MALJ20X175-100 is a discontinued double-acting, double-rod mini cylinder. It features a 20mm bore, a 175mm stroke, and a 100mm rear adjuster that creates a usable end-position window from 75mm up to 175mm. The direct replacement is the MBLJ20X175-100, matching the bore, stroke, force, and G1/8 port.
This SKU lacks the -S magnet code, so it cannot accept a position sensor. The rear adjuster functions strictly as a travel stop to fine-tune reach without adding external stops, but it does not hold the load without live air. It uses a fixed rubber bumper to soften end impact and has threaded covers, whereas the newer MBLJ uses a riveted rolling-packed body.
Airtac MALJ20 Adjustable Mini Cylinder MALJ20X175-100 Technical Specifications
| Model | Airtac MALJ20 Adjustable Mini Cylinder MALJ20X175-100 |
|---|---|
| Series | MALJ adjustable-stroke mini cylinder (discontinued) |
| Replacement | MBLJ20X175-100 |
| Bore size | Ø20 mm |
| Stroke | 175 mm |
| Adjustable window | 75 – 175 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 MBLJ20X175-100 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 MBLJ20X175-100 matches these values.
Model Code: Airtac MALJ20 Adjustable Mini Cylinder MALJ20X175-100
| MALJ | Adjustable-stroke aluminum mini cylinder, double acting (discontinued). |
|---|---|
| 20 | Bore size in mm (20/25/32/40). |
| ×175 | Nominal stroke length in mm. |
| -100 | Adjustable amount: trim the end to a 75–175 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 MALJ20X175-100 Is Used
PCB Router Z-Axis Stop
Dial in the Z-axis plunge depth on a PCB depaneling router.
Film Web Edge Guide
Tension and track a moving film web in a packaging machine. The rear stopper sets the guide roller's resting position, using the 132N pull force to maintain steady tracking against web drift.
Pneumatic Pin Marker
Control the stroke depth of a pin marking head on an aluminum extrusion line. The fixed rubber bumper absorbs the rapid end impact, while the adjuster dials the pin's 75-175mm reach precisely.
Replacing the Airtac MALJ20 Adjustable Mini Cylinder MALJ20X175-100 with MBLJ20X175-100
To replace the MALJ20X175-100, order the MBLJ20X175-100. It matches the 20mm bore, 175mm stroke, 100mm adjust code, G1/8 port, M8x1.25 rod thread, and FA/LB mounting (no back cover or SDB). Since this SKU has no -S magnet, you lose switch capability; the MBLJ upgrade requires CMSG/DMSG/EMSG sensors if you add a magnet. The adjuster is a stop, not a lock. If sizing down, the next smaller bore is unavailable below 20mm. At 175mm stroke, be mindful of rod-to-side-load bending on this 8mm rod.
Upgrade checklist
- ✓ Order the MBLJ20X175-100 (same bore/stroke/adjust)
- ✓ Same 75–175 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 MBLJ20X175-100 instead of this discontinued model.
Airtac MALJ20 Adjustable Mini Cylinder MALJ20X175-100 FAQ
Yes, the MALJ20X175-100 is discontinued. The direct replacement is the MBLJ20X175-100, matching the 20mm bore, 175mm stroke, 100mm adjust code, and G1/8 port. The MBLJ upgrades the threaded covers to a riveted rolling-packed body.
The usable stroke window is 75-175mm via the 100mm rear adjuster. This no-S SKU cannot take a sensor.
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Direct Upgrade
The MBLJ20X175-100 replaces this model 1:1.
Fast Dispatch
MBLJ replacements are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
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