Airtac MBLD Dual Axis Type Mini Cylinder MBLD20X50S
The AirTAC MBLD Dual Axis Type Mini Cylinder MBLD20X50S is a genuine double-acting double-rod aluminum-barrel mini cylinder with a Ø20mm bore and 50mm 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
- Stroke50 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 MBLD20X50S
The AirTAC MBLD20X50S is a compact double-acting double-rod aluminum mini cylinder engineered for equal force and speed in both directions. Because an Ø8 mm rod exits both ends, the annulus area is identical on extend and retract, yielding 132 N of push and pull force at 0.5 MPa. A 50 mm stroke on this 20 mm bore is well within the 300 mm standard limit, making it ideal for short-transfer and indexing tasks in tight spaces.
This SKU includes a built-in magnet (-S) for position sensing via CMSG reed or DMSG/EMSG electronic switches. It features a fixed rubber bumper to soften end-of-stroke impact and a riveted rolling-packed barrel. Since a rod protrudes from the rear cover, overall length is A + 2 x stroke, requiring rear clearance to mount a cam or position flag.
Airtac MBLD Dual Axis Type Mini Cylinder MBLD20X50S Technical Specifications
| Model | Airtac MBLD Dual Axis Type Mini Cylinder MBLD20X50S |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder (double rod) |
| Bore size | Ø20 mm |
| Stroke | 50 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 MBLD20X50S
| MBLD | MBLD aluminum-barrel double-rod mini cylinder. |
|---|---|
| 20 | Bore size in mm. |
| ×50 | 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 MBLD20X50S Is Used
PCB Pick-and-Place
Drives a dual-sided pick head in electronics assembly, using the 132 N equal force to lift delicate PCBs without skewing during 50 mm vertical transfers.
Slider Indexing
Shifts a small packaging slider 50 mm, utilizing the twin-rod anti-rotation特性 to keep the tool plate level without needing an external guide rod.
Sensor Cam Trigger
Uses the protruding rear rod to trip a remote limit switch, confirming the 50 mm stroke completed while the front rod actuates a wire crimping mechanism.
Is the Airtac MBLD Dual Axis Type Mini Cylinder MBLD20X50S the Right Cylinder?
At 132 N both ways, this 20 mm bore suits light-duty guiding and transfer. If you need less force, the range stops here—20 mm is the smallest MBLD size. If your payload increases, step up to the 25 mm bore, which provides 206 N at 0.5 MPa. For heavier side-loads at this 50 mm stroke, add an external guide; the 8 mm rod handles compression well but external rails prevent premature seal wear.
Mounting is limited to Basic, FA flange, or LB foot brackets—no back-cover or SDB pivot exists for this double-rod body. The port thread is default PT. If you need adjustable air cushions rather than fixed rubber bumpers, specify the MBLCD variant. To replace this unit, match the 20 mm bore, 50 mm stroke, PT port, and -S magnet.
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 MBLD20X50S FAQ
Because the rod occupies both sides of the piston, force is equal in both directions: 132 N at 0.5 MPa, 185 N at 0.7 MPa, and a maximum of 27 kgf at 1.0 MPa.
A single-rod cylinder has unequal extend/retract areas, but the MBLD20X50S provides identical speed and force both ways. The rear rod can also mount a position flag or cam, though it requires rear clearance.
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Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
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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Most inquiries answered within 7-8 hours.
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