Airtac MBLD Dual Axis Type Mini Cylinder MBLD40X20S
The AirTAC MBLD Dual Axis Type Mini Cylinder MBLD40X20S is a genuine double-acting double-rod aluminum-barrel mini cylinder with a Ø40mm bore and 20mm stroke. A rod exits both end covers, so extend and retract force are EQUAL — about 528 N each way at 0.5 MPa. Fixed rubber bumper.
- BoreØ40 mm
- Stroke20 mm
- Port sizeG1/4
- Acting typeDouble acting, double rod
- Rod threadM12×1.25
- 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 MBLD40X20S
The AirTAC MBLD40X20S is a compact double-acting double-rod aluminum mini cylinder engineered for applications requiring symmetric output. Because a Ø16 mm carbon-steel rod with 20 um hard-chrome plating exits both end covers, the annulus area is identical on each side. This yields exactly 528 N of force at 0.5 MPa on both extend and retract strokes, eliminating the speed and force differential found in single-rod designs.
This 20 mm stroke variant is tailored for short, high-cycle motions. The riveted rolling-packed aluminum barrel houses a heterogeneous two-way grease-retaining piston seal, while end-of-travel deceleration relies on a fixed rubber bumper rather than an adjustable air cushion. The built-in magnet (-S) allows CMSG reed or DMSG/EMSG electronic sensors to track position. Overall length equals A + 2 x stroke, so you must leave rear-rod clearance for the protruding shaft.
Airtac MBLD Dual Axis Type Mini Cylinder MBLD40X20S Technical Specifications
| Model | Airtac MBLD Dual Axis Type Mini Cylinder MBLD40X20S |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder (double rod) |
| Bore size | Ø40 mm |
| Stroke | 20 mm |
| Acting type | Double acting, double rod |
| Port size | G1/4 |
| Rod thread | M12×1.25 |
| 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 500 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 (Ø40mm, equal both ways)
| Pressure | Extend & retract force |
|---|---|
| 0.5 MPa | 528 N |
| 0.7 MPa | 739 N |
| Max (@1.0 MPa) | 108 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 MBLD40X20S
| MBLD | MBLD aluminum-barrel double-rod mini cylinder. |
|---|---|
| 40 | Bore size in mm. |
| ×20 | 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 MBLD40X20S Is Used
PCB Depaneling Saw
Drives a short 20 mm cut stroke on a circular saw blade carriage. The twin rods keep the blade aligned against side loading, while the 528 N bidirectional force ensures smooth advance and retract.
Pneumatic Gripper Jaws
Actuates synchronized gripper jaws on an assembly pick-and-place robot. Equal force both ways means the jaws clamp and release with identical 528 N authority, preventing part deformation.
Connector Insertion Press
Pushes ribbon cable connectors into PCB sockets. The rear protruding rod mounts a mechanical flag that trips an external limit switch, confirming the 20 mm insertion depth is complete.
Is the Airtac MBLD Dual Axis Type Mini Cylinder MBLD40X20S the Right Cylinder?
Select this 40 mm bore when you need 528 N of equal bidirectional force at 0.5 MPa within a tight footprint. If your payload is lighter, step down to the 32 mm bore (346 N); for heavier loads, step up to the 50 mm bore (881 N). Unlike the single-rod MBL or the adjustable-cushion MBLCD, this base MBLD uses a fixed rubber bumper and lacks a back-cover or SDB pivot option—mounting is limited to Basic, FA flange, or LB foot brackets.
When ordering a replacement, verify the 40 mm bore, 20 mm stroke, G1/4 port, and PT tapered thread form. The -S code confirms the internal magnet is present for sensor switching. Note that the fixed bumper softens end impact but does not lock the rod; the cylinder drifts without live air, so fit an external locking device if you need strict position 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 MBLD40X20S FAQ
Because the MBLD40X20S is a double-rod cylinder, the push and pull forces are equal. It delivers 528 N at 0.5 MPa and 739 N at 0.7 MPa in both directions. The maximum theoretical force is 108 kgf at 1.0 MPa.
A rod exits both ends, providing equal extend/retract force and allowing a cam or position flag to be mounted on the rear rod. The S denotes a built-in magnet, enabling AirTAC CMSG reed or DMSG/EMSG electronic sensors to detect piston position.
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Standard models are processed and dispatched in 3-5 business days.
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