Airtac MBL Aluminum Alloy Mini Cylinder MBL20X20SU
The AirTAC MBL Aluminum Alloy Mini Cylinder MBL20X20SU is a genuine double-acting aluminum-barrel mini round cylinder with a Ø20mm bore and 20mm stroke, 1/8" air ports and a fixed rubber bumper. Its compact riveted body suits push, hold and clamp motion in tight machine spaces.
- BoreØ20 mm
- Stroke20 mm
- Port size1/8"
- Acting typeDouble acting
- Rod threadM8×1.25
- CushionRubber bumper (MBLC variant: adjustable air cushion)
- 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 MBL Aluminum Alloy Mini Cylinder MBL20X20SU
The AirTAC MBL20X20SU is a compact double-acting mini round cylinder engineered for tight machine spaces. Its small 20mm bore and 20mm stroke yield 157 N of push force and 132 N of pull force at 0.5 MPa, making it ideal for precise, short-travel actuation. The riveted rolling-packed aluminum barrel keeps the body light and permanently sealed, though it means the unit is not designed to be disassembled and rebuilt like a traditional tie-rod cylinder.
This specific SKU includes the U flat-end back cover for rigid, fixed mounting and a built-in -S magnet. The magnet enables direct position detection using AirTAC CMSG (reed) or DMSG and EMSG (solid-state electronic) sensor switches. Inside, a heterogeneous two-way piston seal retains grease for long service life, while the Ø8 mm carbon-steel piston rod features 20 µm hard-chrome plating to resist wear and corrosion. End-of-stroke impact is absorbed by a fixed rubber bumper rather than an adjustable cushion.
Airtac MBL Aluminum Alloy Mini Cylinder MBL20X20SU Technical Specifications
| Model | Airtac MBL Aluminum Alloy Mini Cylinder MBL20X20SU |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder |
| Bore size | Ø20 mm |
| Stroke | 20 mm |
| Acting type | Double acting |
| Port size | 1/8" |
| 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 | Rubber bumper (MBLC variant: adjustable air cushion) |
| Max stroke | Up to 500 mm |
Specifications follow the official AirTAC MBL series datasheet. Confirm against the product label before installation. Standard stroke to 500 mm (special order to 800 mm). Thread options: PT / G / NPT.
Theoretical Output Force (Ø20mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 157 N | 132 N |
| 0.7 MPa | 220 N | — |
| Max (@1.0 MPa) | 32 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac MBL Aluminum Alloy Mini Cylinder MBL20X20SU
| MBL | Aluminum-barrel mini round cylinder, double acting. |
|---|---|
| 20 | Bore size in mm. |
| ×20 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Related variants: MBLC (adjustable cushion), MBLD (double rod), MBLJ (adjustable stroke), MSBL/MTBL (single acting).
Where the Airtac MBL Aluminum Alloy Mini Cylinder MBL20X20SU Is Used
PCB Ejector Pins
Uses the 157 N push force at 0.5 MPa to pop finished circuit boards from test fixtures, where the 20mm stroke and compact body fit between dense connector arrays.
Sorter Diverter Gates
Quickly flicks small plastic injection-molded parts down a reject chute, leveraging the 30-800 mm/s speed range and the -S magnet to confirm gate position.
Microplate Handling
Positions 96-well microplates under a pipetting head, where the rigid U flat-end mount ensures precise alignment and the riveted aluminum body resists lab solvents.
Is the Airtac MBL Aluminum Alloy Mini Cylinder MBL20X20SU the Right Cylinder?
With a 20mm bore, this cylinder provides 157 N push at 0.5 MPa. If your application needs less force, there is no smaller standard MBL bore. If you require more power, stepping up to the 25mm bore increases thrust to 245 N. The 20mm stroke is optimal for very short movements; for slightly longer reaches, consider the 40mm stroke variant. For faster or heavier moving loads that need end-of-stroke deceleration, select the MBLC variant which features an adjustable air cushion instead of the standard fixed rubber bumper.
Because this is a double-acting cylinder, it relies on continuous air pressure to hold its position; if air is lost or the valve is centered, the rod will drift and the load will drop. The fixed rubber bumper only softens the end impact and is not a locking mechanism. For applications requiring position holding without live pressure, an external rod lock or pilot-operated check valve is required. This MBL20X20SU includes a PT tapered port thread, a U flat-end back cover, and the -S magnet for sensor switching.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT/NPT/G)
- ✓ Magnet (-S) for sensors?
- ✓ Side load — consider a guided cylinder
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Adjust end cushion screws for smooth stops.
- check Use correct mounting accessory (LB / FA / SDB) and back cover (CA pivot / U flat-end).
- check Installation by qualified personnel per AirTAC docs.
Airtac MBL Aluminum Alloy Mini Cylinder MBL20X20SU FAQ
At 0.5 MPa, this 20mm bore cylinder provides 157 N of push force and 132 N of pull force. At 0.7 MPa, the push force increases to 220 N. The maximum theoretical force is 32 kgf at 1.0 MPa.
The base MBL uses a fixed rubber bumper that cannot be adjusted; for adjustable air cushioning, you need the MBLC variant. This specific SU model includes a built-in magnet (-S), so it is fully compatible with AirTAC CMSG reed switches and DMSG/EMSG electronic sensors for rod position detection.
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Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
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