Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC63X25U
The AirTAC Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC63X25U is a genuine double-acting aluminum-barrel mini round cylinder with a Ø63mm bore and 25mm 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
- Stroke25 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 MBLC63X25U
The AirTAC MBLC63X25U is a compact double-acting aluminum mini cylinder engineered for high-force, short-stroke tasks. It generates 1558 N of push force at 0.5 MPa and utilizes a G1/4 port paired with a robust Ø16 mm carbon-steel rod. Unlike the base MBL, this MBLC variant features a screw-adjustable pneumatic air cushion at both ends, allowing you to precisely tune the end-of-stroke deceleration to match heavy loads and minimize impact vibration.
This specific configuration includes a U flat-end back cover for rigid, straight-line mounting. Because this SKU lacks the -S suffix, it has no built-in magnet and cannot support CMSG, DMSG, or EMSG position sensing. The riveted rolling-packed aluminum barrel keeps the body light and compact, while the heterogeneous two-way grease-retaining piston seal ensures lasting friction-free operation even under aggressive cycling pressures.
Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC63X25U Technical Specifications
| Model | Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC63X25U |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder |
| Bore size | Ø63 mm |
| Stroke | 25 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 MBLC63X25U
| MBL | Aluminum-barrel mini round cylinder, double acting. |
|---|---|
| 63 | Bore size in mm. |
| ×25 | 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 MBLC63X25U Is Used
Injection Mold Ejection
Provides the heavy 1558 N punch needed to knock out dense plastic parts from injection molds, with the cushion absorbing the sudden impact of the short 25 mm retraction.
Pallet Stopper Arm
Acts as a rigid stopper block on packaging conveyors, using its U flat-end mount to absorb the momentum of heavy product pallets arriving at a scanning station.
Press-Fit Pinning
Drives connector pins into thick PCBs in electronics assembly, relying on the 318 kgf maximum theoretical force to seat components firmly without bouncing.
Is the Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC63X25U the Right Cylinder?
Select the MBLC63X25U when your application requires substantial thrust within a very tight stroke envelope. If you need to step down, the 50 mm bore offers 981 N of push force at 0.5 MPa, which may suffice for lighter duties. Stepping up is not an option as 63 mm is the largest bore in the MBL/MBLC family, making this the maximum force choice for the series. The adjustable cushion is ideal here because the high kinetic energy of a 63 mm piston moving even 25 mm can heavily shock end covers; tuning the needle bleeds trapped air to soften the stop. Note that this cylinder does not hold position if air pressure is lost—you will need an external rod lock for fail-safe load holding.
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 MBLC63X25U FAQ
This 63 mm bore cylinder uses a Ø16 mm rod with an M14x1.5 rod-end thread and a G1/4 port. At 0.5 MPa it provides 1558 N push and 1457 N pull force. At 0.7 MPa, push increases to 2181 N. The maximum theoretical force is 318 kgf at 1.0 MPa.
The MBLC features a screw-adjustable air cushion at both ends, letting you tune end-of-stroke deceleration to protect the end covers on fast, heavy moves, whereas the MBL uses a fixed rubber bumper. The cushion only decelerates the piston; it is not a brake. This cylinder will not hold position if air is lost or the valve centers, requiring an external pilot-operated check valve for load holding.
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