This model is discontinued
AirTAC has phased out the MALJ series. You can still order this code here: we ship the direct replacement MBLJ20X275-10-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 MALJ20X275-10-S
The AirTAC MALJ20 Adjustable Mini Cylinder MALJ20X275-10-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 265 to 275 mm. This model is discontinued — the direct replacement is the MBLJ20X275-10-S.
- BoreØ20 mm
- Stroke275 mm
- Adjust window265–275 mm
- Port sizeG1/8
- Rod threadM8×1.25
- StatusDiscontinued → MBLJ20X275-10-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 MALJ20X275-10-S
The AirTAC MALJ20X275-10-S is a discontinued double-acting, double-rod mini cylinder with a 20mm bore and 275mm stroke. It provides a usable adjustable stroke window of 265-275mm via a 10mm rear stopper screw.
This -S magnet model uses older CS1-M / DS1-M switches, while the MBLJ upgrade uses CMSG / DMSG / EMSG sensors. The original MALJ features threaded covers, whereas the MBLJ uses a riveted rolling-packed body. The rear adjuster is a travel stop, not a lock; it sets the end position but will not hold a load without live air. End impact is softened by a fixed rubber bumper, not an adjustable air cushion.
Airtac MALJ20 Adjustable Mini Cylinder MALJ20X275-10-S Technical Specifications
| Model | Airtac MALJ20 Adjustable Mini Cylinder MALJ20X275-10-S |
|---|---|
| Series | MALJ adjustable-stroke mini cylinder (discontinued) |
| Replacement | MBLJ20X275-10-S |
| Bore size | Ø20 mm |
| Stroke | 275 mm |
| Adjustable window | 265 – 275 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 MBLJ20X275-10-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 MBLJ20X275-10-S matches these values.
Model Code: Airtac MALJ20 Adjustable Mini Cylinder MALJ20X275-10-S
| MALJ | Adjustable-stroke aluminum mini cylinder, double acting (discontinued). |
|---|---|
| 20 | Bore size in mm (20/25/32/40). |
| ×275 | Nominal stroke length in mm. |
| -10 | Adjustable amount: trim the end to a 265–275 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 MALJ20X275-10-S Is Used
Connector Pin Insertion
Fine-tunes the end position within a 10mm window to seat delicate pins without bottoming out the 8mm rod.
Thin Film Winding
Trims the stroke to maintain exact web tension on a converting line, preventing telescoping of the roll.
Replacing the Airtac MALJ20 Adjustable Mini Cylinder MALJ20X275-10-S with MBLJ20X275-10-S
To replace the MALJ20X275-10-S, order the exact direct replacement MBLJ20X275-10-S. Confirm the 20mm bore, 275mm stroke, 10mm adjuster code, G1/8 PT port, and M8x1.25 rod-end thread. Mounting is FA or LB only (no back cover or SDB). Remember the adjuster is a stop, not a lock, so add an external lock for held loads.
At 275mm stroke, prevent rod bending by ensuring rigid guidance and minimizing side loads.
Upgrade checklist
- ✓ Order the MBLJ20X275-10-S (same bore/stroke/adjust)
- ✓ Same 265–275 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 MBLJ20X275-10-S instead of this discontinued model.
Airtac MALJ20 Adjustable Mini Cylinder MALJ20X275-10-S FAQ
Yes, the MALJ20X275-10-S is discontinued. The direct replacement is the MBLJ20X275-10-S, matching the 20mm bore, 275mm stroke, 10mm adjuster, and G1/8 port. You will need to upgrade your sensors from CS1-M / DS1-M to the CMSG / DMSG / EMSG family.
The usable adjustable stroke window is 265-275mm (275mm stroke minus the 10mm rear adjuster).
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
Direct Upgrade
The MBLJ20X275-10-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
Request a Quote (Airtac MALJ20 Adjustable Mini Cylinder MALJ20X275-10-S → MBLJ20X275-10-S)
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