This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is MBLD20X400 — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the MBLD20X400 in place of this model. The MBLD replacement upgrades to a riveted rolling-packed body and CMSG / DMSG / EMSG sensors (the MAL used CS1-M / DS1-M).
Airtac MALD Aluminum Alloy Mini Cylinder MALD20X400
The AirTAC Airtac MALD Aluminum Alloy Mini Cylinder MALD20X400 is a double-acting, double-rod aluminum mini cylinder: a rod exits both ends of the Ø20mm bore, so push and pull force are equal. This model is discontinued — the drop-in replacement is the MBLD20X400, matching bore, stroke, force and mounting.
- BoreØ20 mm
- Stroke400 mm
- Port sizeG1/8
- Acting typeDouble acting, double rod
- Rod threadM8×1.25
- StatusDiscontinued → MBLD20X400
About the Airtac MALD Aluminum Alloy Mini Cylinder MALD20X400
The AirTAC MALD20X400 is a discontinued double-acting, double-rod mini cylinder. Because the rods exit both ends, the annulus areas match, giving exactly 132 N of force in both push and pull directions at 0.5 MPa. This specific 400 mm stroke exceeds the 300 mm standard maximum for the 20 mm bore, making it a non-standard or made-to-order part.
The direct drop-in replacement is the MBLD20X400, which matches the bore, stroke, 132 N equal force, G1/8 port, and mounting. Upgrading brings structural changes: the MALD uses threaded covers and older CS1-M/DS1-M switches if a magnet is present, while the MBLD features a riveted rolling-packed body and CMSG/DMSG/EMSG sensors. Note that this specific SKU has no -S code, so it cannot accept a position sensor.
Airtac MALD Aluminum Alloy Mini Cylinder MALD20X400 Technical Specifications
| Model | Airtac MALD Aluminum Alloy Mini Cylinder MALD20X400 |
|---|---|
| Series | MALD double-rod mini cylinder (discontinued) |
| Replacement | MBLD20X400 |
| Bore size | Ø20 mm |
| Stroke | 400 mm |
| Acting type | Double acting, double rod |
| 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 |
Double-rod types have no back-cover code and no SDB pivot; mount on the body, LB foot or FA flange. The MBLD20X400 carries the same ratings.
Output Force — Equal Both Ways (Ø20mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 132 N | 132 N |
| 0.7 MPa | 185 N | 185 N |
| Max (@1.0 MPa) | 27 kgf | |
A rod exits both ends, so the effective area — and force — is equal in both directions. The MBLD20X400 matches these values.
Model Code: Airtac MALD Aluminum Alloy Mini Cylinder MALD20X400
| MALD | Double-rod aluminum mini cylinder, double acting (discontinued). |
|---|---|
| 20 | Bore size in mm (20/25/32/40). |
| ×400 | Stroke length in mm. |
| S | Optional magnet for a CS1-M / DS1-M sensor (MBLD uses CMSG/DMSG/EMSG). |
Replacement: MALD → MBLD. No back-cover (CA/U/CM) and no SDB on double-rod. Mounting: LB / FA.
Where the Airtac MALD Aluminum Alloy Mini Cylinder MALD20X400 Is Used
PCB Edge Conveyor Tracking
Drives a dual-belt conveyor edge guide for electronics assembly. The twin rods prevent chassis twist over the 400 mm travel, while the equal 132 N push/pull force keeps the guide tracking perfectly straight without skewing.
Textile Yarn Guide Traverse
Cycles a yarn guide back and forth across a 400 mm winding drum. The fixed rubber bumper absorbs the rapid end-of-stroke reversals, and the rear rod end mounts a secondary cam to trigger a bobbin changer.
Thin-Film Web Splicing
Aligns a splicing head on a packaging line. The double-rod design provides the anti-rotation stability needed to keep the splice blade flat over the long 400 mm stroke, preventing film tearing.
Replacing the Airtac MALD Aluminum Alloy Mini Cylinder MALD20X400 with MBLD20X400
To replace the MALD20X400, order the MBLD20X400. Confirm the G1/8 port, M8x1.25 rod-end thread, and FA or LB mounting (there is no back-cover or SDB option on this double-rod body). Because this is a no-magnet SKU, you cannot add a sensor; if you need position sensing, you must upgrade to an -S MBLD variant to use CMSG/DMSG/EMSG switches. Size your load on the equal 132 N force at 0.5 MPa. If you need less force, the next size down is the 16 mm bore (confirm its lower force from the datasheet). If you need more force, the next size up is the 25 mm bore, which provides 206 N at 0.5 MPa. Also, at 400 mm stroke, the extended 8 mm rods are highly susceptible to side-load bending; ensure external guides support the load to prevent premature seal wear.
Upgrade checklist
- ✓ Order the MBLD20X400 (same bore/stroke/force)
- ✓ Force equal both ways (132 N at 0.5 MPa)
- ✓ Twin rods for anti-rotation / rear flag
- ✓ No back cover / SDB — plan a body or 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 Protect both rod ends from side load on long strokes.
- check No back-cover / SDB on double-rod — use body / FA / LB.
- check Front/rear covers are threaded — not for field disassembly.
- check For new builds, specify the MBLD20X400 instead of this discontinued model.
Airtac MALD Aluminum Alloy Mini Cylinder MALD20X400 FAQ
Yes, the MALD20X400 is discontinued. The exact drop-in replacement is the MBLD20X400, which matches the 20 mm bore, 400 mm stroke, G1/8 port, and 132 N equal force. The MBLD upgrades the threaded covers to a riveted rolling-packed body. Note that this 400 mm stroke is non-standard, exceeding the 300 mm maximum for this bore.
The double-rod design makes force equal both ways: 132 N push and 132 N pull at 0.5 MPa, 185 N at 0.7 MPa, and a maximum of 27 kgf at 1.0 MPa. This specific SKU lacks the -S magnet code, so it cannot accept a position sensor. If you need sensing, the MBLD replacement with an -S code uses CMSG/DMSG/EMSG switches.
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The MBLD20X400 replaces this model 1:1.
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