This model is discontinued
AirTAC has phased out the MALJ series. You can still order this code here: we ship the direct replacement MBLJ20X90-75-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 MALJ20X90-75-S
The AirTAC Airtac MALJ20 Adjustable Mini Cylinder MALJ20X90-75-S is a double-acting aluminum mini cylinder with a rear adjustable-stroke stopper: you can trim up to 75 mm, giving a usable end-position window from 15 to 90 mm. This model is discontinued — the direct replacement is the MBLJ20X90-75-S.
- BoreØ20 mm
- Stroke90 mm
- Adjust window15–90 mm
- Port sizeG1/8
- Rod threadM8×1.25
- StatusDiscontinued → MBLJ20X90-75-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 MALJ20X90-75-S
The AirTAC MALJ20X90-75-S is a discontinued double-acting, double-rod mini cylinder with a rear adjustable stroke. Its 75 mm rear screw stopper creates a usable travel window of 15-90 mm, letting you dial in the exact reach without adding external stops. The direct replacement is the MBLJ20X90-75-S, matching the bore, stroke, force, and mounting.
This -S SKU includes a magnet for CS1-M or DS1-M reed switches; the MBLJ upgrade shifts to CMSG/DMSG/EMSG sensors and swaps the MAL's threaded covers for a riveted rolling-packed body. Remember the 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 only by a fixed rubber bumper, as there is no adjustable air cushion.
Airtac MALJ20 Adjustable Mini Cylinder MALJ20X90-75-S Technical Specifications
| Model | Airtac MALJ20 Adjustable Mini Cylinder MALJ20X90-75-S |
|---|---|
| Series | MALJ adjustable-stroke mini cylinder (discontinued) |
| Replacement | MBLJ20X90-75-S |
| Bore size | Ø20 mm |
| Stroke | 90 mm |
| Adjustable window | 15 – 90 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 MBLJ20X90-75-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 MBLJ20X90-75-S matches these values.
Model Code: Airtac MALJ20 Adjustable Mini Cylinder MALJ20X90-75-S
| MALJ | Adjustable-stroke aluminum mini cylinder, double acting (discontinued). |
|---|---|
| 20 | Bore size in mm (20/25/32/40). |
| ×90 | Nominal stroke length in mm. |
| -75 | Adjustable amount: trim the end to a 15–90 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 MALJ20X90-75-S Is Used
Dispenser Valve Positioning
Fine-tune the extension stop on an adhesive dispensing head so the nozzle sits precisely above a battery cell seam, adjusting the 75 mm travel screw rather than reprogramming the PLC.
Lightweight Parts Ejector
Trim the ejector stroke on a small plastic injection mold to kick parts clear of the cavity, using the 132 N pull force to retract the pin before the mold closes.
Replacing the Airtac MALJ20 Adjustable Mini Cylinder MALJ20X90-75-S with MBLJ20X90-75-S
To replace the MALJ20X90-75-S with the MBLJ20X90-75-S, confirm the 20 mm bore, 90 mm stroke, 75 mm adjust code, G1/8 PT port, and 8 mm rod-end thread (M8x1.25). Mounting is Basic, FA, or LB only; there is no back-cover or SDB option. You must also update your sensors: the MAL -S magnet uses older CS1-M/DS1-M switches, while the MBLJ uses CMSG/DMSG/EMSG. The rear adjuster remains a travel stop, not a lock, so add an external locking valve if you need to hold a load safely.
When sizing, you can step down to a smaller bore or up to the next size. Since the 90 mm stroke is under the 300 mm maximum, rod-bending side loads are minimal, but always guide the load to prevent rod binding.
Upgrade checklist
- ✓ Order the MBLJ20X90-75-S (same bore/stroke/adjust)
- ✓ Same 15–90 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 MBLJ20X90-75-S instead of this discontinued model.
Airtac MALJ20 Adjustable Mini Cylinder MALJ20X90-75-S FAQ
Yes, the MALJ20X90-75-S is discontinued. You will need to upgrade your sensors from the old CS1-M/DS1-M switches to the CMSG/DMSG/EMSG family, and the body construction changes from threaded covers to a riveted rolling-packed design.
The 90 mm base stroke with the 75 mm rear adjuster gives a usable travel window of 15-90 mm. Note that the adjuster is a travel stop, not a lock; it cannot hold a load without continuous air pressure, and end cushioning relies on a fixed rubber bumper.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
Direct Upgrade
The MBLJ20X90-75-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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