This model is discontinued
AirTAC has phased out the MALJ series. You can still order this code here: we ship the direct replacement MBLJ20X35-30-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 MALJ20X35-30-S
The AirTAC Airtac MALJ20 Adjustable Mini Cylinder MALJ20X35-30-S 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 5 to 35 mm. This model is discontinued — the direct replacement is the MBLJ20X35-30-S.
- BoreØ20 mm
- Stroke35 mm
- Adjust window5–35 mm
- Port sizeG1/8
- Rod threadM8×1.25
- StatusDiscontinued → MBLJ20X35-30-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 MALJ20X35-30-S
The AirTAC MALJ20X35-30-S is a discontinued adjustable-stroke mini cylinder. It features a 20mm bore, 35mm stroke, and a 30mm rear adjuster, giving a usable end-position window of 5-35mm. The direct replacement is the MBLJ20X35-30-S, matching bore, stroke, force, and G1/8 port.
The rear adjuster sets travel limits but is a stop, not a lock; it cannot hold a load without live air. This SKU includes a magnet (-S) for CS1-M/DS1-M switches, while the MBLJ replacement upgrades to CMSG/DMSG/EMSG sensors. The original uses threaded covers, whereas the MBLJ features a riveted rolling-packed body. Both use a fixed rubber bumper, not an adjustable cushion.
Airtac MALJ20 Adjustable Mini Cylinder MALJ20X35-30-S Technical Specifications
| Model | Airtac MALJ20 Adjustable Mini Cylinder MALJ20X35-30-S |
|---|---|
| Series | MALJ adjustable-stroke mini cylinder (discontinued) |
| Replacement | MBLJ20X35-30-S |
| Bore size | Ø20 mm |
| Stroke | 35 mm |
| Adjustable window | 5 – 35 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 MBLJ20X35-30-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 MBLJ20X35-30-S matches these values.
Model Code: Airtac MALJ20 Adjustable Mini Cylinder MALJ20X35-30-S
| MALJ | Adjustable-stroke aluminum mini cylinder, double acting (discontinued). |
|---|---|
| 20 | Bore size in mm (20/25/32/40). |
| ×35 | Nominal stroke length in mm. |
| -30 | Adjustable amount: trim the end to a 5–35 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 MALJ20X35-30-S Is Used
Connector Insertion
Fine-tunes the depth stop for inserting ribbon-cable headers, preventing internal shorting by adjusting the rear travel limit precisely.
Micro-Clamp Actuation
Provides variable reach for clamping small plastic housings during ultrasonic welding, easily shortening the stroke to fit varying part heights.
Replacing the Airtac MALJ20 Adjustable Mini Cylinder MALJ20X35-30-S with MBLJ20X35-30-S
To replace the MALJ20X35-30-S, order the exact direct replacement MBLJ20X35-30-S. Confirm your 20mm bore, 35mm stroke, 30mm adjust code, G1/8 port, and M8x1.25 rod thread. Mounting is FA or LB only (no back cover or SDB). Remember the adjuster is a travel stop, not a load lock.
Upgrade checklist
- ✓ Order the MBLJ20X35-30-S (same bore/stroke/adjust)
- ✓ Same 5–35 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 MBLJ20X35-30-S instead of this discontinued model.
Airtac MALJ20 Adjustable Mini Cylinder MALJ20X35-30-S FAQ
Yes, the MALJ20X35-30-S is discontinued. The direct replacement is the MBLJ20X35-30-S, matching the 20mm bore, 35mm stroke, 30mm adjuster, and G1/8 port. You must upgrade your sensors from CS1-M/DS1-M to CMSG/DMSG/EMSG switches.
The 30mm adjuster gives a usable stroke window of 5-35mm. The adjuster acts as a travel stop, not a lock.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
Direct Upgrade
The MBLJ20X35-30-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
Request a Quote (Airtac MALJ20 Adjustable Mini Cylinder MALJ20X35-30-S → MBLJ20X35-30-S)
Tell us the quantity and destination — we quote the direct MBLJ20X35-30-S replacement with price, stock and lead time, usually within 7-8 hours.