This model is discontinued
AirTAC has phased out the MALJ series. You can still order this code here: we ship the direct replacement MBLJ20X45-10-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 MALJ20X45-10-S
The AirTAC Airtac MALJ20 Adjustable Mini Cylinder MALJ20X45-10-S is a double-acting aluminum mini cylinder with a rear adjustable-stroke stopper: you can trim up to 10 mm, giving a usable end-position window from 35 to 45 mm. This model is discontinued — the direct replacement is the MBLJ20X45-10-S.
- BoreØ20 mm
- Stroke45 mm
- Adjust window35–45 mm
- Port sizeG1/8
- Rod threadM8×1.25
- StatusDiscontinued → MBLJ20X45-10-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 MALJ20X45-10-S
The AirTAC MALJ20X45-10-S is a discontinued double-acting mini cylinder with a 10 mm rear adjustable stroke stopper, yielding a usable end-position window of 35-45 mm. The direct replacement is the MBLJ20X45-10-S, matching the 20 mm bore, 45 mm stroke, G1/8 port, and FA/LB mounting.
This -S SKU uses a CS1-M / DS1-M magnet, which transitions to CMSG / DMSG / EMSG switches on the MBLJ. The original MALJ features threaded covers, while the MBLJ upgrade uses a riveted rolling-packed body. The adjuster acts purely as a travel stop to fine-tune reach without external bolts, but it does not hold load without live air.
Airtac MALJ20 Adjustable Mini Cylinder MALJ20X45-10-S Technical Specifications
| Model | Airtac MALJ20 Adjustable Mini Cylinder MALJ20X45-10-S |
|---|---|
| Series | MALJ adjustable-stroke mini cylinder (discontinued) |
| Replacement | MBLJ20X45-10-S |
| Bore size | Ø20 mm |
| Stroke | 45 mm |
| Adjustable window | 35 – 45 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 MBLJ20X45-10-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 MBLJ20X45-10-S matches these values.
Model Code: Airtac MALJ20 Adjustable Mini Cylinder MALJ20X45-10-S
| MALJ | Adjustable-stroke aluminum mini cylinder, double acting (discontinued). |
|---|---|
| 20 | Bore size in mm (20/25/32/40). |
| ×45 | Nominal stroke length in mm. |
| -10 | Adjustable amount: trim the end to a 35–45 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 MALJ20X45-10-S Is Used
Wire Harness Tensioner
Fine-tune the end position on an automotive wire harness jig, trimming the 10 mm stroke to perfectly tension wires without overstretching, relying on the 132 N pull force.
Micro-Clamp Actuator
Adjust the reach on a small electronic component clamping station to prevent crushing delicate housings, dialing the stroke back from 45 mm to 35 mm for sensitive parts.
Replacing the Airtac MALJ20 Adjustable Mini Cylinder MALJ20X45-10-S with MBLJ20X45-10-S
To replace this MALJ20X45-10-S, specify the MBLJ20X45-10-S. Confirm the 20 mm bore, 45 mm stroke, 10 mm adjust code, G1/8 port, M8x1.25 rod thread, and FA/LB mounting (no back cover or SDB). The -S magnet changes sensor families from CS1-M / DS1-M to CMSG / DMSG / EMSG. Remember the adjuster is a stop, not a lock; add an external lock for held loads.
This cylinder uses a fixed rubber bumper, not an adjustable air cushion.
Upgrade checklist
- ✓ Order the MBLJ20X45-10-S (same bore/stroke/adjust)
- ✓ Same 35–45 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 MBLJ20X45-10-S instead of this discontinued model.
Airtac MALJ20 Adjustable Mini Cylinder MALJ20X45-10-S FAQ
Yes, the MALJ20X45-10-S is discontinued. The direct replacement is the MBLJ20X45-10-S, which matches the 20 mm bore, 45 mm stroke, 10 mm adjust code, and G1/8 port. The MBLJ upgrades the body to a riveted rolling-packed design and changes the magnet switches from CS1-M / DS1-M to CMSG / DMSG / EMSG.
The usable stroke window is 35-45 mm (45 mm stroke minus the 10 mm rear adjuster). The adjuster is a travel stop, not a lock, and the cylinder uses a fixed rubber bumper.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
Direct Upgrade
The MBLJ20X45-10-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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