This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is MBLD20X45 — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the MBLD20X45 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 MALD20X45
The AirTAC Airtac MALD Aluminum Alloy Mini Cylinder MALD20X45 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 MBLD20X45, matching bore, stroke, force and mounting.
- BoreØ20 mm
- Stroke45 mm
- Port sizeG1/8
- Acting typeDouble acting, double rod
- Rod threadM8×1.25
- StatusDiscontinued → MBLD20X45
About the Airtac MALD Aluminum Alloy Mini Cylinder MALD20X45
The AirTAC MALD20X45 is a discontinued double-acting, double-rod miniature cylinder. A 20mm bore with a 45mm stroke outputs an equal 132 N of force in both directions at 0.5 MPa. The direct drop-in replacement is the MBLD20X45, which matches the bore, stroke, G1/8 port, and mounting.
This base SKU lacks a magnet and cannot accept a position sensor. The original MALD uses threaded covers and older CS1-M/DS1-M switches, while the MBLD upgrade features a riveted rolling-packed body and CMSG/DMSG/EMSG sensors. Twin carbon-steel rods with 20 um hard chrome resist rotation and double the bearing load for guided slide applications.
Airtac MALD Aluminum Alloy Mini Cylinder MALD20X45 Technical Specifications
| Model | Airtac MALD Aluminum Alloy Mini Cylinder MALD20X45 |
|---|---|
| Series | MALD double-rod mini cylinder (discontinued) |
| Replacement | MBLD20X45 |
| Bore size | Ø20 mm |
| Stroke | 45 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 MBLD20X45 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 MBLD20X45 matches these values.
Model Code: Airtac MALD Aluminum Alloy Mini Cylinder MALD20X45
| MALD | Double-rod aluminum mini cylinder, double acting (discontinued). |
|---|---|
| 20 | Bore size in mm (20/25/32/40). |
| ×45 | 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 MALD20X45 Is Used
PCB Edge Connector Seating
Twin rods prevent rotational drift while pushing a 45mm stroke to seat delicate PCB edge connectors, using the 132N equal push-pull force.
Pick-and-Place Rear Flag
The rear rod extension carries an external cam flag to trigger a mechanical valve, confirming the 45mm travel on a compact 20mm bore assembly.
Label Applicator Squeeze
Dual rods provide stable, anti-rotation gripping for squeezing label rollers, ensuring even pressure across the 45mm travel without twisting.
Replacing the Airtac MALD Aluminum Alloy Mini Cylinder MALD20X45 with MBLD20X45
To replace the MALD20X45 with the MBLD20X45, confirm the 20mm bore, 45mm stroke, G1/8 port, and PT thread. Mounting is limited to FA flange or LB foot, as there is no back cover or SDB option. Because this is a non-magnet SKU, it cannot hold a sensor; if you need position detection, step up to an -S model and migrate to CMSG/DMSG/EMSG switches.
Size on the equal force: this bore gives 132 N each way at 0.5 MPa. If you need less force, there is no smaller MALD bore, so you must step up to the 25mm bore, which provides 206 N at 0.5 MPa. The fixed rubber bumper softens end-of-stroke impact but provides no load holding on air loss.
Upgrade checklist
- ✓ Order the MBLD20X45 (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 MBLD20X45 instead of this discontinued model.
Airtac MALD Aluminum Alloy Mini Cylinder MALD20X45 FAQ
Yes, the MALD20X45 is discontinued. The exact drop-in replacement is the MBLD20X45, which matches the 20mm bore, 45mm stroke, G1/8 port, and equal 132N force. The MBLD upgrades to a riveted rolling-packed body.
Force is equal because both rods exit the bore, making the piston annulus area identical on the push and pull sides. The figures are 132 N at 0.5 MPa, 185 N at 0.7 MPa, and a maximum of 27 kgf at 1.0 MPa in both directions. This base SKU lacks a magnet, so it cannot take a sensor.
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Drop-in Upgrade
The MBLD20X45 replaces this model 1:1.
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MBLD replacements usually ship in 3-4 days.
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Most inquiries answered within 7-8 hours.
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