Airtac MBL Aluminum Alloy Mini Cylinder MBL20X125-CA
The AirTAC MBL Aluminum Alloy Mini Cylinder MBL20X125-CA is a genuine double-acting aluminum-barrel mini round cylinder with a Ø20mm bore and 125mm 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
- Stroke125 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 MBL20X125-CA
The AirTAC MBL20X125-CA 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, making it well-suited for 125 mm travel tasks in light-duty assembly. Its defining feature is the CA pivot back cover, which allows the body to swing on a pin to accommodate arcing or angular loads.
This model features a riveted rolling-packed barrel where the covers are crimped to the tube, ensuring a lightweight footprint but meaning the unit is not designed to be disassembled like a tie-rod cylinder. It relies on a fixed rubber bumper to soften end-of-stroke impact rather than an adjustable cushion. Because this specific SKU lacks the -S suffix for a built-in magnet, it cannot be fitted with a CMSG, DMSG, or EMSG position sensor.
Airtac MBL Aluminum Alloy Mini Cylinder MBL20X125-CA Technical Specifications
| Model | Airtac MBL Aluminum Alloy Mini Cylinder MBL20X125-CA |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder |
| Bore size | Ø20 mm |
| Stroke | 125 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 MBL20X125-CA
| MBL | Aluminum-barrel mini round cylinder, double acting. |
|---|---|
| 20 | Bore size in mm. |
| ×125 | 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 MBL20X125-CA Is Used
Textile Loom Guide
Swings on a clevis pin to guide yarn carriers through 125 mm arcs, utilizing the 157 N push force to maintain tension in compact weaving frames.
PCB Shuttle Divert
Pivots to push populated circuit boards between conveyor lanes, fitting within tight electronics handling machinery where footprint is critical.
Pouch Packaging Flap
Handles light cardboard carton flaps during 125 mm travel, with the CA pivot absorbing misalignment as packages feed through the packaging line.
Is the Airtac MBL Aluminum Alloy Mini Cylinder MBL20X125-CA the Right Cylinder?
For lower force needs, stepping down to the 20 mm bore's smaller neighbour is not an option as it is the smallest size, but stepping up to the 25 mm bore yields a higher 245 N push at 0.5 MPa. If your process requires end-of-stroke speed regulation, choose the MBLC variant for its adjustable air cushion. Keep in mind that the fixed rubber bumper only softens impact and does not hold the load; if air pressure drops, the rod drifts, so an external rod lock or pilot-operated check valve is needed for position holding.
At 125 mm of travel, the Ø8 mm piston rod is highly susceptible to bending under side loads. To manage this, leverage the CA pivot back cover with an SDB bracket to absorb angular misalignment, or use an external guide rail. The exact replacement match for this unit is: 20 mm bore, 125 mm stroke, G1/8 port, PT thread, CA back cover, no mounting accessory, and no magnet.
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 MBL20X125-CA FAQ
This 20 mm bore cylinder delivers 157 N push and 132 N pull at 0.5 MPa, 220 N push at 0.7 MPa, and reaches a maximum theoretical force of 32 kgf at 1.0 MPa.
The base MBL20X125-CA uses a fixed rubber bumper, not an adjustable cushion; for adjustable air cushioning, you need the MBLC variant. Additionally, this SKU lacks a built-in magnet, so CMSG, DMSG, or EMSG sensor switches cannot be fitted.
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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.
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Most inquiries answered within 7-8 hours.
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