Airtac MBL Aluminum Alloy Mini Cylinder MBL20X40SU
The AirTAC MBL Aluminum Alloy Mini Cylinder MBL20X40SU is a genuine double-acting aluminum-barrel mini round cylinder with a Ø20mm bore and 40mm 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
- Stroke40 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 MBL20X40SU
The AirTAC MBL20X40SU is a compact double-acting aluminum mini round cylinder engineered for tight machine spaces. Operating at 0.5 MPa, it provides 157 N of push force and 132 N of pull force over a 40 mm stroke, making it well-suited for precise small-part positioning. Its riveted rolling-packed barrel design keeps the unit exceptionally light, though it is not intended for field disassembly like a tie-rod body.
This SKU includes a built-in magnet (-S) for non-contact position detection via CMSG reed or DMSG and EMSG solid-state switches. The U suffix denotes a rigid flat-end rear cover for direct mounting. Inside, a heterogeneous two-way piston seal retains grease for extended lifespan, while the Ø8 mm carbon-steel rod features 20 µm hard-chrome plating to resist wear and corrosion.
Airtac MBL Aluminum Alloy Mini Cylinder MBL20X40SU Technical Specifications
| Model | Airtac MBL Aluminum Alloy Mini Cylinder MBL20X40SU |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder |
| Bore size | Ø20 mm |
| Stroke | 40 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 MBL20X40SU
| MBL | Aluminum-barrel mini round cylinder, double acting. |
|---|---|
| 20 | Bore size in mm. |
| ×40 | 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 MBL20X40SU Is Used
PCB Test Handlers
Provides 157 N of push force at 0.5 MPa to actuate delicate test probes on printed circuit board handlers without damaging the substrate.
Lab Diagnostic Carousels
Drives the 40 mm stroke indexing pin on small clinical analyzer carousels, using the rigid U back cover for stable, wobble-free alignment.
Carton Label Applicators
Tamps pressure-sensitive labels onto small packaging with precise 40 mm travel, utilizing the -S magnet to confirm label placement via a DMSG sensor.
Is the Airtac MBL Aluminum Alloy Mini Cylinder MBL20X40SU the Right Cylinder?
If you need less force, there is no smaller MBL bore, so you would look at lowering pressure; if you need more power, step up to the 25 mm bore which yields 245 N push at 0.5 MPa. Because this 20 mm model uses a fixed rubber bumper instead of an adjustable air cushion, choose the MBLC variant if your application requires softer end-of-stroke deceleration for heavier moving masses. Note that a plain MBL cannot hold a load if air pressure drops—the rod will drift—so add an external pilot-operated check valve if position retention is required. Replacement match: 20 mm bore, 40 mm stroke, G1/8 port, PT thread, U flat-end back cover, magnet included.
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 MBL20X40SU FAQ
At 0.5 MPa it delivers 157 N push and 132 N pull; at 0.7 MPa push increases to 220 N. The theoretical maximum force is 32 kgf at 1.0 MPa. The operational speed ranges from 30-800 mm/s.
No, the base MBL features a fixed rubber bumper to soften end-of-stroke impact. If you need adjustable air cushioning to slow down heavier loads, you must select the MBLC variant.
Authorized Export Seller
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.
Request a Quote for Airtac MBL Aluminum Alloy Mini Cylinder MBL20X40SU
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