This model is discontinued
AirTAC has phased out the MALJ series. You can still order this code here: we ship the direct replacement MBLJ20X100-30, 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 MALJ20X100-30
The AirTAC Airtac MALJ20 Adjustable Mini Cylinder MALJ20X100-30 is a double-acting aluminum mini cylinder with a rear adjustable-stroke stopper: you can trim up to 30 mm, giving a usable end-position window from 70 to 100 mm. This model is discontinued — the direct replacement is the MBLJ20X100-30.
- BoreØ20 mm
- Stroke100 mm
- Adjust window70–100 mm
- Port sizeG1/8
- Rod threadM8×1.25
- StatusDiscontinued → MBLJ20X100-30
- 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 MALJ20X100-30
The AirTAC MALJ20X100-30 is a discontinued 20mm bore, double-acting double-rod cylinder with a 100mm stroke and a 30mm rear adjuster. This gives a usable end-position window of 70-100mm. The direct replacement is the MBLJ20X100-30, matching bore, stroke, force, port and mounting.
The rear adjuster is a travel stop, not a lock; it sets the end position but cannot hold a load without live air. This MALJ has threaded covers and no magnet, so it cannot accept a position sensor. The MBLJ upgrade shifts to a riveted rolling-packed body. Both use a fixed rubber bumper, not an adjustable air cushion.
Airtac MALJ20 Adjustable Mini Cylinder MALJ20X100-30 Technical Specifications
| Model | Airtac MALJ20 Adjustable Mini Cylinder MALJ20X100-30 |
|---|---|
| Series | MALJ adjustable-stroke mini cylinder (discontinued) |
| Replacement | MBLJ20X100-30 |
| Bore size | Ø20 mm |
| Stroke | 100 mm |
| Adjustable window | 70 – 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 MBLJ20X100-30 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 MBLJ20X100-30 matches these values.
Model Code: Airtac MALJ20 Adjustable Mini Cylinder MALJ20X100-30
| MALJ | Adjustable-stroke aluminum mini cylinder, double acting (discontinued). |
|---|---|
| 20 | Bore size in mm (20/25/32/40). |
| ×100 | Nominal stroke length in mm. |
| -30 | Adjustable amount: trim the end to a 70–100 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 MALJ20X100-30 Is Used
Wire Cutter Feed
Trims the return position on a wire stripping machine to vary the cut length precisely, ensuring the 8mm rod retracts clear of the guide tube.
Label Applicator Tamp
Adjusts the tamp stroke down to 70mm for small cartons, applying 132N pull to retract the pad smoothly before the next label indexes.
Replacing the Airtac MALJ20 Adjustable Mini Cylinder MALJ20X100-30 with MBLJ20X100-30
Replace the MALJ20X100-30 directly with the MBLJ20X100-30. Confirm the 20mm bore, 100mm stroke, 30mm adjust code, G1/8 port, and PT thread. Mounting is FA or LB only; there is no back cover or SDB option. Because this SKU lacks the -S magnet, it cannot take a sensor; the MBLJ upgrade uses CMSG/DMSG/EMSG switches if needed. The adjuster is a stop, not a lock.
The 100mm stroke is well within the 300mm max for this bore, so rod-bending side loads are minimal. The fixed rubber bumper softens end impact only.
Upgrade checklist
- ✓ Order the MBLJ20X100-30 (same bore/stroke/adjust)
- ✓ Same 70–100 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 MBLJ20X100-30 instead of this discontinued model.
Airtac MALJ20 Adjustable Mini Cylinder MALJ20X100-30 FAQ
Yes, the MALJ20X100-30 is discontinued. The direct replacement is the MBLJ20X100-30, which matches the 20mm bore, 100mm stroke, 30mm adjust code, force, G1/8 port, and mounting. The MBLJ upgrades to a riveted rolling-packed body and CMSG/DMSG/EMSG sensors.
The 30mm adjuster trims the 100mm stroke, giving a usable end-position window of 70-100mm. The adjuster is a travel stop, not a lock, and this no-magnet SKU cannot accept a sensor.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
Direct Upgrade
The MBLJ20X100-30 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 MALJ20X100-30 → MBLJ20X100-30)
Tell us the quantity and destination — we quote the direct MBLJ20X100-30 replacement with price, stock and lead time, usually within 7-8 hours.