Airtac MBLD Dual Axis Type Mini Cylinder MBLD50X20S
The AirTAC Airtac MBLD Dual Axis Type Mini Cylinder MBLD50X20S is a genuine double-acting double-rod aluminum-barrel mini cylinder with a Ø50mm bore and 20mm stroke. A rod exits both end covers, so extend and retract force are EQUAL — about 881 N each way at 0.5 MPa. Fixed rubber bumper.
- BoreØ50 mm
- Stroke20 mm
- Port sizeG1/4
- Acting typeDouble acting, double rod
- Rod threadM14×1.5
- 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 MBLD50X20S
The AirTAC MBLD50X20S is a compact double-acting double-rod aluminum mini cylinder delivering 881 N of force in both directions at 0.5 MPa. Because a Ø16 mm carbon-steel rod protrudes from both end covers, the annulus area is identical on extend and retract, ensuring perfectly balanced thrust and speed. The 20 mm short stroke is ideal for high-force gripping, clamping, or indexing tasks in confined spaces.
This SKU includes the -S code, meaning a built-in magnet for position detection via CMSG (reed), DMSG, or EMSG (electronic) switches. The riveted rolling-packed aluminum barrel houses a fixed rubber bumper to soften end-of-stroke impact. You can mount a workpiece on the front rod end and a cam or position flag on the rear, leveraging twin-rod guidance for superior anti-rotation resistance.
Airtac MBLD Dual Axis Type Mini Cylinder MBLD50X20S Technical Specifications
| Model | Airtac MBLD Dual Axis Type Mini Cylinder MBLD50X20S |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder (double rod) |
| Bore size | Ø50 mm |
| Stroke | 20 mm |
| Acting type | Double acting, double rod |
| Port size | G1/4 |
| Rod thread | M14×1.5 |
| 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 (Ø50mm, equal both ways)
| Pressure | Extend & retract force |
|---|---|
| 0.5 MPa | 881 N |
| 0.7 MPa | 1234 N |
| Max (@1.0 MPa) | 180 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 MBLD50X20S
| MBLD | MBLD aluminum-barrel double-rod mini cylinder. |
|---|---|
| 50 | 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 MBLD50X20S Is Used
PCB Router Clamping
Secures printed circuit board panels during routing with 881 N of equal bidirectional force, using the short 20 mm stroke to rapidly lock and release panels without shifting alignment.
Packaging Flap Folding
Drives a dual-side carton flap folder where the front rod pushes the flap and the rear rod simultaneously triggers a mechanical limit flag, keeping cycle speeds synchronized.
Semiconductor Socket Testing
Applies balanced 1233 N testing pressure at 0.7 MPa to microchip sockets, utilizing the twin-rod anti-rotation property to ensure perfectly perpendicular contact without binding.
Is the Airtac MBLD Dual Axis Type Mini Cylinder MBLD50X20S the Right Cylinder?
For 881 N both-way force, this 50 mm bore is optimal; step down to the 40 mm bore for 528 N to save space, or up to the 63 mm bore for 1457 N if your payload requires higher mass handling. Choose the MBLCD variant if your application generates excessive kinetic energy and needs adjustable air cushions, as the base MBLD only has fixed rubber bumpers. Mounting is limited to Basic, FA (flange), or LB (foot)—there is no SDB pivot or back-cover option.
Replacement matching requires a 50 mm bore, 20 mm stroke, G1/4 port, PT thread, and the -S magnet. Note that a plain MBLD cannot hold position without live air; the rod will drift if pressure drops. For secure mid-stroke holding, an external pneumatic lock valve is required.
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 MBLD50X20S FAQ
Because it is a double-rod cylinder, the force is identical in both directions. It outputs 881 N at 0.5 MPa and 1233 N at 0.7 MPa. The maximum theoretical force is 180 kgf at 1.0 MPa.
A single-rod cylinder has unequal extend and retract forces due to the rod occupying one side. The MBLD50X20S has a rod exiting both ends, making the annulus area equal for balanced force and speed. It also allows you to mount a secondary cam or position flag on the rear rod end.
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1-Year Warranty
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Standard models are processed and dispatched in 3-5 business days.
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