Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC25X25SU
The AirTAC Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC25X25SU is a genuine double-acting aluminum-barrel mini round cylinder with a Ø25mm bore and 25mm stroke, G1/8 air ports and a fixed rubber bumper. Its compact riveted body suits push, hold and clamp motion in tight machine spaces.
- BoreØ25 mm
- Stroke25 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionRubber bumper (MBLC variant: adjustable air cushion)
About the Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC25X25SU
The AirTAC MBLC25X25SU is a double-acting aluminum mini cylinder with a 25mm bore and 25mm stroke. It delivers 245 N push and 206 N pull force at 0.5 MPa, making it well-suited for short, rapid positioning tasks. The riveted rolling-packed aluminum barrel keeps the body compact and lightweight for tight assembly spaces, while the Ø10 mm carbon-steel rod features 20 µm hard-chrome plating to resist wear. A heterogeneous two-way grease-retaining piston seal maintains lubrication for a long service life.
This variant features a built-in magnet (-S) for compatibility with AirTAC CMSG, DMSG, and EMSG sensor switches to detect rod position. The U flat-end back cover provides a rigid rear mount. Unlike the standard MBL, this MBLC model incorporates a screw-adjustable pneumatic air cushion at both ends. You can tune the needle to smoothly decelerate the piston near stroke ends, absorbing impact on fast cycling moves without relying on a fixed rubber bumper.
Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC25X25SU Technical Specifications
| Model | Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC25X25SU |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder |
| Bore size | Ø25 mm |
| Stroke | 25 mm |
| Acting type | Double acting |
| Port size | G1/8 |
| Rod thread | M10×1.25 |
| 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 (Ø25mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 245 N | 206 N |
| 0.7 MPa | 344 N | — |
| Max (@1.0 MPa) | 50 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 MBLC25X25SU
| MBL | Aluminum-barrel mini round cylinder, double acting. |
|---|---|
| 25 | 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 MBLC25X25SU Is Used
PCB Router Clamping
Provides 245 N of clamping force to hold PCB panels steady during high-speed routing, using the 25mm stroke to secure the board without flexing the substrate.
Carton Flap Folding
Actuates a short 25mm folding arm on packaging lines to tuck minor flaps before case sealing, where the adjustable cushion prevents jarring stops on fast cycles.
Connector Insertion Stop
Acts as a hard mechanical stop for pneumatic connector press machines, decelerating the 206 N pull load smoothly to protect delicate pin headers during retraction.
Is the Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC25X25SU the Right Cylinder?
For 25mm bore applications requiring 245 N of push force at 0.5 MPa, this 25mm stroke model fits compact clamping needs. If you need less force, stepping down to the 20mm bore yields 157 N push. If your fixture requires more power, stepping up to the 32mm bore provides 402 N push. Choose the MBLC over the base MBL when your cycle speed is high and the fixed bumper cannot adequately absorb the end-of-stroke impact. The standard PT tapered port threads match common pneumatic fittings. Remember that the adjustable air cushion only decelerates the piston near the ends; it is not a brake. A plain double-acting cylinder will not hold position if air pressure is lost or the valve centers, so add an external rod lock if fall prevention is required.
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 MBLC25X25SU FAQ
At 0.5 MPa, this 25mm bore cylinder provides 245 N push and 206 N pull force. At 0.7 MPa, it provides 343 N push. The theoretical maximum force is 50 kgf at 1.0 MPa. It uses a G1/8 port, a Ø10 mm rod, and an M10x1.25 rod-end thread.
The MBLC25X25SU has a screw-tunable pneumatic cushion at both ends. You adjust the needle to trap a pocket of air that decelerates the piston smoothly near the end of its stroke. This reduces impact and noise on fast moves, outperforming the fixed rubber bumper found on the base MBL model. It is a deceleration device, not a load lock.
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