Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC20X300CA
The AirTAC Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC20X300CA is a genuine double-acting aluminum-barrel mini round cylinder with a Ø20mm bore and 300mm stroke, G1/8 air ports and a fixed rubber bumper. Its compact riveted body suits push, hold and clamp motion in tight machine spaces.
- BoreØ20 mm
- Stroke300 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM8×1.25
- CushionRubber bumper (MBLC variant: adjustable air cushion)
About the Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC20X300CA
The AirTAC MBLC20X300CA is a compact double-acting aluminum mini cylinder engineered for tight spaces where precise motion control is required. It features an adjustable air cushion at both ends, allowing you to screw-tune the end-of-stroke deceleration to smoothly brake the piston, reducing impact noise and vibration on fast moves. Delivering 157 N of push force at 0.5 MPa, this 20 mm bore unit is built with a riveted rolling-packed aluminum barrel for a lightweight, space-saving profile that fits where standard tie-rod bodies cannot.
This specific SKU includes a CA pivot/clevis back cover that swings on a pin to accommodate arcing or angular loads, which is essential for a 300 mm stroke on an Ø8 mm rod. Because this model lacks the -S magnet code, it cannot support CMSG, DMSG, or EMSG position sensors. The carbon-steel rod features 20 µm hard-chrome plating paired with a heterogeneous two-way grease-retaining piston seal for long service life.
Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC20X300CA Technical Specifications
| Model | Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC20X300CA |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder |
| Bore size | Ø20 mm |
| Stroke | 300 mm |
| Acting type | Double acting |
| 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 | 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 MBLC Aluminum Alloy Mini Air Cylinder MBLC20X300CA
| MBL | Aluminum-barrel mini round cylinder, double acting. |
|---|---|
| 20 | Bore size in mm. |
| ×300 | 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 MBLC Aluminum Alloy Mini Air Cylinder MBLC20X300CA Is Used
Textile Loom Weft Insertion
Drives the weft insertion guide on compact textile looms, using the 300 mm stroke and tuned cushioning to reverse direction rapidly without slamming the end covers at high frequency.
PCB Conveyor Sorting Gate
Actuates a pivot sorting gate on electronics conveyor lines, where the 157 N force easily deflects light PCB carriers and the CA clevis absorbs the arcing swing of the routing arm.
Lab Sample Centrifuge Loader
Positions test tube racks into a laboratory centrifuge, relying on the 20 mm bore's compact footprint to fit within the machine chassis while the adjustable cushion prevents fluid splashing.
Is the Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC20X300CA the Right Cylinder?
For a 20 mm bore generating 157 N push at 0.5 MPa, stepping up to the 25 mm bore yields 245 N, while stepping down is not an option as this is the smallest available size. Choose this MBLC variant over the base MBL when your cycle speeds or moved mass exceed what a fixed rubber bumper can absorb; the screw-adjustable needle decelerates the load near the ends but does not lock or hold the rod position if air is lost. The replacement match is: 20 mm bore, 300 mm stroke, G1/8 port, M8x1.25 rod thread, PT thread form, CA pivot back cover, no magnet. Because the stroke is 300 mm, the small Ø8 mm rod is highly susceptible to side-load bending; use an external guide, the CA pivot action, or an MBLD double-rod cylinder to prevent premature wear.
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 MBLC Aluminum Alloy Mini Air Cylinder MBLC20X300CA FAQ
This 20 mm bore cylinder delivers a push force of 157 N and a pull force of 132 N at 0.5 MPa. At 0.7 MPa, the push increases to 220 N. The maximum theoretical force is 32 kgf at 1.0 MPa.
The MBLC20X300CA uses a screw-tunable pneumatic needle at both ends to trap and exhaust air smoothly, decelerating the piston near stroke extremes. You tune the needle to match your load and speed, cutting end-cover impact; it is a dampener, not a load lock or brake.
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