This model is discontinued
AirTAC has phased out the MALJ series. You can still order this code here: we ship the direct replacement MBLJ20X170-75-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 MALJ20X170-75-S
The AirTAC Airtac MALJ20 Adjustable Mini Cylinder MALJ20X170-75-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 95 to 170 mm. This model is discontinued — the direct replacement is the MBLJ20X170-75-S.
- BoreØ20 mm
- Stroke170 mm
- Adjust window95–170 mm
- Port sizeG1/8
- Rod threadM8×1.25
- StatusDiscontinued → MBLJ20X170-75-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 MALJ20X170-75-S
The AirTAC MALJ20X170-75-S is a discontinued double-acting, double-rod mini cylinder with a rear adjustable stroke stopper. It trims up to 75 mm at the rear, giving a usable end-position window of 95-170 mm. The direct replacement is the MBLJ20X170-75-S, matching bore, stroke, force, G1/8 port, and mounting.
This -S SKU has a magnet for CS1-M / DS1-M switches; the MBLJ replacement uses CMSG / DMSG / EMSG sensors. The MALJ uses threaded covers, while the MBLJ upgrades to a riveted rolling-packed body. The fixed rubber bumper softens end impact, but the adjuster is a travel stop, not a lock—it cannot hold a load without live air pressure.
Airtac MALJ20 Adjustable Mini Cylinder MALJ20X170-75-S Technical Specifications
| Model | Airtac MALJ20 Adjustable Mini Cylinder MALJ20X170-75-S |
|---|---|
| Series | MALJ adjustable-stroke mini cylinder (discontinued) |
| Replacement | MBLJ20X170-75-S |
| Bore size | Ø20 mm |
| Stroke | 170 mm |
| Adjustable window | 95 – 170 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 MBLJ20X170-75-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 MBLJ20X170-75-S matches these values.
Model Code: Airtac MALJ20 Adjustable Mini Cylinder MALJ20X170-75-S
| MALJ | Adjustable-stroke aluminum mini cylinder, double acting (discontinued). |
|---|---|
| 20 | Bore size in mm (20/25/32/40). |
| ×170 | Nominal stroke length in mm. |
| -75 | Adjustable amount: trim the end to a 95–170 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 MALJ20X170-75-S Is Used
Dispensing Valve Actuation
Adjust the rear stopper to shorten the 170 mm stroke for precise epoxy dispensing, preventing the 8 mm rod from bottoming out and ensuring accurate fluid cutoff.
Light Sheet Metal Bending
Set a specific 120 mm end position to create a consistent bend angle in thin brass sheet, leveraging the 132 N pull force for reliable retraction.
Replacing the Airtac MALJ20 Adjustable Mini Cylinder MALJ20X170-75-S with MBLJ20X170-75-S
To replace the MALJ20X170-75-S, order the exact direct replacement MBLJ20X170-75-S. Confirm the 20 mm bore, 170 mm stroke, 75 mm adjust code, G1/8 PT port, and M8x1.25 rod-end thread. Mounting is FA or LB only (no back cover or SDB). The -S magnet means a sensor family change from CS1-M/DS1-M to CMSG/DMSG/EMSG. For a 170 mm stroke, use a guide rail to prevent rod bending and side-load wear. Remember, the adjuster sets end position but does not hold load without air.
Upgrade checklist
- ✓ Order the MBLJ20X170-75-S (same bore/stroke/adjust)
- ✓ Same 95–170 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 MBLJ20X170-75-S instead of this discontinued model.
Airtac MALJ20 Adjustable Mini Cylinder MALJ20X170-75-S FAQ
Yes, the MALJ20X170-75-S is discontinued. The direct replacement is the MBLJ20X170-75-S, matching the 20 mm bore, 170 mm stroke, 75 mm adjust code, G1/8 port, and mounting. You will need to upgrade your sensors from CS1-M/DS1-M to CMSG/DMSG/EMSG.
The 75 mm adjuster is a travel stop that lets you trim the rear position, creating a usable stroke window of 95-170 mm. It does not lock the load without air.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
Direct Upgrade
The MBLJ20X170-75-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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