Airtac MBLD Dual Axis Type Mini Cylinder MBLD20X300
The AirTAC MBLD Dual Axis Type Mini Cylinder MBLD20X300 is a genuine double-acting double-rod aluminum-barrel mini cylinder with a Ø20mm bore and 300mm stroke. A rod exits both end covers, so extend and retract force are EQUAL — about 132 N each way at 0.5 MPa. Fixed rubber bumper.
- BoreØ20 mm
- Stroke300 mm
- Port sizeG1/8
- Acting typeDouble acting, double rod
- Rod threadM8×1.25
- CushionFixed rubber bumper
- 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 MBLD Dual Axis Type Mini Cylinder MBLD20X300
The AirTAC MBLD20X300 is a compact double-acting double-rod aluminum mini cylinder engineered for equal force in both directions, delivering 132 N at 0.5 MPa. A single piston carries an Ø8 mm carbon-steel rod through both end covers, meaning extend and retract forces are identical. This 300 mm stroke hits the maximum standard limit for a 20 mm bore, making it ideal for long-travel actuation in tight spaces where a larger ISO body would not fit.
Because a rod protrudes from the rear, you can mount a position flag or cam on one end and drive the workpiece on the other. The riveted rolling-packed aluminum barrel and grease-retaining piston seal ensure stable operation, while the fixed rubber bumper softens end-of-travel impact. This specific SKU lacks a built-in magnet, so it cannot support CMSG, DMSG, or EMSG electronic position sensing.
Airtac MBLD Dual Axis Type Mini Cylinder MBLD20X300 Technical Specifications
| Model | Airtac MBLD Dual Axis Type Mini Cylinder MBLD20X300 |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder (double rod) |
| Bore size | Ø20 mm |
| Stroke | 300 mm |
| Acting type | Double acting, double rod |
| Port size | G1/8 |
| Rod thread | M8×1.25 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 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 overall length = A + 2 × stroke — leave clearance for the rear rod. MBLD/MBLCD mounting is Basic / FA / LB only (no SDB, no back-cover code). Thread options: PT / G / NPT.
Output Force (Ø20mm, equal both ways)
| Pressure | Extend & retract force |
|---|---|
| 0.5 MPa | 132 N |
| 0.7 MPa | 185 N |
| Max (@1.0 MPa) | 27 kgf |
A rod on both piston faces makes the annulus area equal, so extend and retract force (and speed) are the same. Actual usable force is lower due to friction.
Model Code: Airtac MBLD Dual Axis Type Mini Cylinder MBLD20X300
| MBLD | MBLD aluminum-barrel double-rod mini cylinder. |
|---|---|
| 20 | Bore size in mm. |
| ×300 | Stroke length in mm. |
| S | Optional built-in magnet for a CMSG/DMSG/EMSG sensor switch. |
| FA / LB | Mounting: FA flange or LB foot (no SDB on double-rod). |
Related: MBLCD (double rod, adjustable cushion), MBLC (single rod + cushion), MBL (single rod).
Where the Airtac MBLD Dual Axis Type Mini Cylinder MBLD20X300 Is Used
PCB Stacking Elevator
Drives a 300 mm lift platform in a PCB unstacking machine, using the equal 132 N both-way force to raise and lower light fiberboard panels without speed mismatch.
Textile Yarn Guide
Shifts a yarn guide carriage across a 300 mm path in a loom, utilizing the rear rod end to mount a mechanical cam that triggers a thread break detector.
Chip Tray Sorter
Pushes empty chip trays out of a testing cell, relying on the compact 20 mm body to fit within dense semiconductor handling machinery.
Is the Airtac MBLD Dual Axis Type Mini Cylinder MBLD20X300 the Right Cylinder?
When sizing this 20 mm bore model, stepping down is not possible as it is the smallest available size. Stepping up to the 25 mm bore yields 206 N at 0.5 MPa if your application demands greater force. Keep in mind the MBLD has no back-cover or SDB pivot mounting options; mounting is limited to Basic, FA flange, or LB foot styles. If you need adjustable air cushioning instead of the fixed rubber bumper, choose the MBLCD variant. To replace this unit, verify the 20 mm bore, 300 mm stroke, G1/8 port, and PT thread.
At 300 mm of stroke on an Ø8 mm rod, side-load and rod bending risks are high. Even with twin rods providing better anti-rotation resistance than a single rod, an external guide is strongly recommended to prevent premature wear. Additionally, the overall length equals A plus twice the stroke, so you must leave rear-rod clearance in your layout. Note that a plain MBLD does not hold position without live air; the rod will drift, so use an external lock for holding.
Quick checklist
- ✓ Equal force both ways at your pressure
- ✓ Rear-rod clearance (length = A + 2 × stroke)
- ✓ Mounting: Basic / FA / LB only
- ✓ Magnet (S) for sensors?
- ✓ Side load — add a guide on long strokes
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Leave clearance for the rear rod (length = A + 2 × stroke).
- check Avoid side load; add an external guide on long strokes.
- check Mounting: Basic / FA flange / LB foot (no SDB, no back-cover code).
- check Installation by qualified personnel per AirTAC docs.
Airtac MBLD Dual Axis Type Mini Cylinder MBLD20X300 FAQ
Because the MBLD20X300 is a double-rod cylinder, the effective piston area is identical on both sides, resulting in equal force for both extend and retract. The output is 132 N at 0.5 MPa and 185 N at 0.7 MPa, with a maximum theoretical force of 27 kgf at 1.0 MPa.
No. This specific SKU lacks the built-in -S magnet, meaning it cannot support AirTAC CMSG reed or DMSG/EMSG electronic solid-state sensors. If you need position feedback, you must select the MBLD20X300S variant. The double-rod design also differs from single-rod MBL cylinders by offering equal force both ways and providing a rear rod for mounting secondary mechanisms.
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