Airtac MBLD Dual Axis Type Mini Cylinder MBLD20X40S
The AirTAC MBLD Dual Axis Type Mini Cylinder MBLD20X40S is a genuine double-acting double-rod aluminum-barrel mini cylinder with a Ø20mm bore and 40mm 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
- Stroke40 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 MBLD20X40S
The AirTAC MBLD20X40S is a double-acting, double-rod aluminum mini cylinder featuring a 20mm bore and 40mm stroke. Because a rod protrudes from both end covers, the annulus area is identical on extend and retract, yielding 132 N of force each way at 0.5 MPa. This 40mm stroke is well-suited for short indexing moves where symmetrical pushing and pulling are required.
The built-in magnet (-S) enables position detection via CMSG reed or DMSG/EMSG solid-state switches. It uses a fixed rubber bumper to soften end-of-stroke impact, while the riveted rolling-packed barrel and 20 um hard-chrome plated carbon-steel rod ensure durability. Overall length equals A + 2 x stroke, so you must leave rear-rod clearance for the protruding end.
Airtac MBLD Dual Axis Type Mini Cylinder MBLD20X40S Technical Specifications
| Model | Airtac MBLD Dual Axis Type Mini Cylinder MBLD20X40S |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder (double rod) |
| Bore size | Ø20 mm |
| Stroke | 40 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 MBLD20X40S
| MBLD | MBLD aluminum-barrel double-rod mini cylinder. |
|---|---|
| 20 | Bore size in mm. |
| ×40 | 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 MBLD20X40S Is Used
PCB Shuttle Conveyors
Drives a 40mm shuttle stroke for PCB routing machines, using the rear rod end to mount a position flag that triggers a CMSG reed sensor.
Gripper Synchronized Jaws
Actuates dual gripper jaws in packaging assembly, leveraging the twin-rod's inherent anti-rotation properties to keep the 132N grip perfectly aligned.
Label Dispenser Tamp
Tamps labels onto small electronic components, using the equal extend and retract speed to maintain a consistent 40mm apply-and-return cycle.
Is the Airtac MBLD Dual Axis Type Mini Cylinder MBLD20X40S the Right Cylinder?
At 132 N, this 20mm bore steps up to the 25mm bore (206 N @0.5 MPa) for heavier clamping, or down to a smaller mini cylinder if less force is needed. Choose the single-rod MBL for higher one-way push force, or the MBLCD variant if your application requires adjustable air cushioning instead of the fixed rubber bumper. Mounting is limited to Basic, FA, or LB; no SDB pivot or back-cover option exists. The plain cylinder does not hold position without live air. Replacement match: 20mm bore, 40mm stroke, G1/8 port, PT thread, magnet (S).
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 MBLD20X40S FAQ
It provides equal force in both directions because the rod occupies both sides of the piston. Output is 132 N at 0.5 MPa, 185 N at 0.7 MPa, and a maximum of 27 kgf at 1.0 MPa.
Instead of a single piston shaft, a rod exits both ends. This creates equal extend and retract forces and speeds, and allows you to mount a cam or position flag on the rear rod while driving a workpiece on the front.
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Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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