Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC63X20U
The AirTAC Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC63X20U is a genuine double-acting aluminum-barrel mini round cylinder with a Ø63mm bore and 20mm stroke, G1/4 air ports and a fixed rubber bumper. Its compact riveted body suits push, hold and clamp motion in tight machine spaces.
- BoreØ63 mm
- Stroke20 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM14×1.5
- CushionRubber bumper (MBLC variant: adjustable air cushion)
About the Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC63X20U
The AirTAC MBLC63X20U is a double-acting aluminum mini cylinder engineered for high-force, short-stroke tasks. It generates 1558 N of push force and 1457 N of pull force at 0.5 MPa, utilizing a 63 mm bore and a 20 mm stroke. Unlike the base MBL series, this variant features a screw-adjustable pneumatic cushion at both ends, allowing you to fine-tune end-of-stroke deceleration to match heavy loads and minimize impact vibration.
This U-coded model uses a rigid flat-end rear cover, making it ideal for straightforward linear thrust applications rather than arcing pivot moves. The riveted rolling-packed aluminum barrel keeps the body compact and lightweight, while the 20 um hard-chrome plating on the carbon-steel rod defends against wear. Note that this specific SKU lacks a built-in magnet, so it cannot support CMSG, DMSG, or EMSG position sensing.
Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC63X20U Technical Specifications
| Model | Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC63X20U |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder |
| Bore size | Ø63 mm |
| Stroke | 20 mm |
| Acting type | Double acting |
| Port size | G1/4 |
| Rod thread | M14×1.5 |
| 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 (Ø63mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 1559 N | 1458 N |
| 0.7 MPa | 2182 N | — |
| Max (@1.0 MPa) | 318 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 MBLC63X20U
| MBL | Aluminum-barrel mini round cylinder, double acting. |
|---|---|
| 63 | 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 MBLC Aluminum Alloy Mini Air Cylinder MBLC63X20U Is Used
Injection Mold Ejection
Provides robust 1558 N push force to eject dense plastic parts from injection molds, utilizing the adjustable air cushion to soften the abrupt end-of-stroke impact inherent to rapid mold-break cycles.
Heavy Pallet Stopping
Acts as a compact 20 mm stroke stopper for heavy pallets on a packaging line, using its 318 kgf maximum theoretical force capacity to arrest momentum while the tuned cushion prevents end-cover damage.
PCB Press Fit Housing
Delivers precise 1457 N pull force at 0.5 MPa to seat electronic connectors into printed circuit board housings, where the short stroke and rigid U flat-end cover ensure aligned, square retraction.
Is the Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC63X20U the Right Cylinder?
For a 20 mm stroke, sizing up or down is dictated by your force needs. If 1558 N at 0.5 MPa is excessive, step down to the 50 mm bore, which yields 981 N of push force. If you require even more thrust, this 63 mm bore is the largest standard size available, delivering a maximum theoretical output of 318 kgf at 1.0 MPa. Choose this MBLC over the fixed-bumper MBL when moving substantial masses at high speeds where a rubber bumper would degrade quickly.
Because this is a short 20 mm stroke, side-load stress on the 16 mm rod is minimal compared to longer travels. However, keep in mind that a plain double-acting cylinder does not hold position if air pressure is lost or exhausted; the rod will drift. For critical drop prevention, an external rod lock or pilot-operated check valve is required. Replacement matching requires a 63 mm bore, 20 mm stroke, G1/4 port, PT thread, U flat-end back cover, 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 MBLC Aluminum Alloy Mini Air Cylinder MBLC63X20U FAQ
At 0.5 MPa, the push force is 1558 N and the pull force is 1457 N. At 0.7 MPa, the push force increases to 2181 N. The maximum theoretical force is 318 kgf when operated at 1.0 MPa.
No, this specific SKU lacks the built-in magnet (indicated by the absence of an S in the model code), meaning it cannot accept CMSG, DMSG, or EMSG sensor switches. You would need the MBLC63X20SU variant for position detection.
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