Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC20X300SCA
The AirTAC Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC20X300SCA 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 MBLC20X300SCA
The AirTAC MBLC20X300SCA is a compact double-acting aluminum mini cylinder featuring a screw-adjustable pneumatic cushion at both ends. Delivering 157 N of push force and 132 N of pull force at 0.5 MPa, it uses a G1/8 port and an Ø8 mm hard-chrome carbon-steel rod. The 300 mm stroke suits extended reach tasks, while the riveted rolling-packed aluminum barrel keeps the body light for tight machinery spaces.
The CA pivot/clevis back cover swings on a pin to accommodate arcing loads, which is critical for a long 300 mm stroke on a small Ø8 rod that has low side-load tolerance. The built-in magnet (-S) enables position detection with AirTAC CMSG reed or DMSG/EMSG electronic sensor switches. You tune the cushion needle to decelerate the piston smoothly near each end, cutting impact and vibration on faster moves.
Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC20X300SCA Technical Specifications
| Model | Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC20X300SCA |
|---|---|
| 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 MBLC20X300SCA
| 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 MBLC20X300SCA Is Used
Pick-and-Place Arms
Drives extended 300 mm reach arcs for electronic component transfer, using the CA pivot to absorb angular momentum while the cushion halts the 157 N stroke smoothly.
Packaging Flap Folders
Tucks carton flaps at high speed where the adjustable air cushion prevents end-cover damage during rapid cycling, and the -S magnet confirms fold completion.
PCB Test Fixtures
Moves probing heads over long travel distances, relying on the 132 N pull force and DMSG electronic sensors for precise, repeatable end-position verification.
Is the Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC20X300SCA the Right Cylinder?
Choose this 20 mm bore when you need a 300 mm reach with 157 N push at 0.5 MPa and arcing motion. If you need less force, there is no smaller bore in this series. If your application requires more power, step up to the 25 mm bore, which provides 245 N push at 0.5 MPa. Select the MBLC over the base MBL when your cycle speeds are high enough that a fixed rubber bumper cannot absorb the end-of-stroke impact.
Because the 300 mm stroke on an Ø8 rod is highly susceptible to bending, you must manage side loads. The CA pivot cover helps, but pairing it with an external guide or an MBLD double-rod cylinder prevents rod deflection. A plain MBLC does not hold position when air is lost or the valve centers; the cushion only decelerates near the ends and acts as no brake. For drop prevention, use an external rod lock. Replacement match: 20 mm bore, 300 mm stroke, G1/8 port, PT thread, CA back cover, magnet fitted.
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 MBLC20X300SCA FAQ
This 20 mm bore cylinder uses a G1/8 port and an M8x1.25 rod thread. It generates 157 N push and 132 N pull at 0.5 MPa, 220 N push and 185 N pull at 0.7 MPa, with a maximum theoretical force of 32 kgf at 1.0 MPa.
The screw-tunable pneumatic cushion at both ends allows you to dial in the deceleration rate to match your load and speed. This reduces impact, noise, and vibration on fast or frequent cycles far better than a fixed rubber bumper. It only decelerates the piston near the stroke ends and does not lock the rod.
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Standard models usually ship in 3-4 days.
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