This model is discontinued
AirTAC has phased out the MALJ series. You can still order this code here: we ship the direct replacement MBLJ20X100-20, 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 MALJ20X100-20
The AirTAC Airtac MALJ20 Adjustable Mini Cylinder MALJ20X100-20 is a double-acting aluminum mini cylinder with a rear adjustable-stroke stopper: you can trim up to 20 mm, giving a usable end-position window from 80 to 100 mm. This model is discontinued — the direct replacement is the MBLJ20X100-20.
- BoreØ20 mm
- Stroke100 mm
- Adjust window80–100 mm
- Port sizeG1/8
- Rod threadM8×1.25
- StatusDiscontinued → MBLJ20X100-20
- 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 MALJ20X100-20
The AirTAC MALJ20X100-20 is a discontinued double-acting mini cylinder with a 20mm bore and 100mm stroke. It features a rear adjustable stopper that lets you trim up to 20mm, providing a usable stroke window of 80-100mm. The direct replacement is the MBLJ20X100-20, matching bore, stroke, force, and mounting.
This SKU lacks a magnet (-S), so it cannot take a position sensor. The adjuster is a travel stop, not a lock; it sets the end position but will not hold a load without live air. Impact is softened by a fixed rubber bumper, as there is no adjustable air cushion. Note the construction shift: the old MALJ uses threaded covers and CS1-M/DS1-M sensors, while the MBLJ upgrade features a riveted rolling-packed body and CMSG/DMSG/EMSG switches.
Airtac MALJ20 Adjustable Mini Cylinder MALJ20X100-20 Technical Specifications
| Model | Airtac MALJ20 Adjustable Mini Cylinder MALJ20X100-20 |
|---|---|
| Series | MALJ adjustable-stroke mini cylinder (discontinued) |
| Replacement | MBLJ20X100-20 |
| Bore size | Ø20 mm |
| Stroke | 100 mm |
| Adjustable window | 80 – 100 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 MBLJ20X100-20 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 MBLJ20X100-20 matches these values.
Model Code: Airtac MALJ20 Adjustable Mini Cylinder MALJ20X100-20
| MALJ | Adjustable-stroke aluminum mini cylinder, double acting (discontinued). |
|---|---|
| 20 | Bore size in mm (20/25/32/40). |
| ×100 | Nominal stroke length in mm. |
| -20 | Adjustable amount: trim the end to a 80–100 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 MALJ20X100-20 Is Used
Label Applicator Tamp
Fine-tune the tamp head depth on a bottle labeling line, trimming 20mm at the rear to compensate for varying container heights without swapping hardware.
Small Part Ejection
Eject small molded plastic parts from a die, relying on the 132N pull force at 0.5 MPa to retract the rod within the 80-100mm travel window.
Replacing the Airtac MALJ20 Adjustable Mini Cylinder MALJ20X100-20 with MBLJ20X100-20
To replace the MALJ20X100-20, order the MBLJ20X100-20. Confirm the 20mm bore, 100mm stroke, 20mm adjust code, G1/8 port, PT thread, and FA/LB mounting (no back cover or SDB). Because this SKU has no -S magnet, it cannot support a sensor; the MBLJ upgrade uses CMSG/DMSG/EMSG switches. The rear adjuster is a travel stop, not a lock.
For sizing, stepping down to a 20mm bore is the minimum here, but if you need less force, check the smaller bores. At 100mm stroke, keep side-load minimized to prevent rod bending, as the fixed rubber bumper does not arrest kinetic energy like an air cushion.
Upgrade checklist
- ✓ Order the MBLJ20X100-20 (same bore/stroke/adjust)
- ✓ Same 80–100 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 MBLJ20X100-20 instead of this discontinued model.
Airtac MALJ20 Adjustable Mini Cylinder MALJ20X100-20 FAQ
Yes, the MALJ20X100-20 is discontinued. The direct replacement is the MBLJ20X100-20, matching the 20mm bore, 100mm stroke, 20mm adjust code, G1/8 port, and FA/LB mounting. The MBLJ upgrades the construction to a riveted rolling-packed body.
The usable stroke window is 80-100mm, set by trimming the rear adjuster up to 20mm. The adjuster is a travel stop, not a lock.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
Direct Upgrade
The MBLJ20X100-20 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
Request a Quote (Airtac MALJ20 Adjustable Mini Cylinder MALJ20X100-20 → MBLJ20X100-20)
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