Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC25X15SU
The AirTAC Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC25X15SU is a genuine double-acting aluminum-barrel mini round cylinder with a Ø25mm bore and 15mm 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
- Stroke15 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 MBLC25X15SU
The AirTAC MBLC25X15SU is a double-acting, 25mm bore mini cylinder engineered for extremely short 15mm strokes. It delivers 245N of push force and 206N of pull force at 0.5 MPa. Unlike the base MBL series, this variant features a screw-adjustable pneumatic air cushion at both ends. This allows you to tune the end-of-stroke deceleration, effectively absorbing impact energy on rapid traverses where a fixed rubber bumper would degrade or fail.
Built with a riveted rolling-packed aluminum barrel, the body remains highly compact and lightweight for tight assembly spaces. The heterogeneous two-way grease-retaining piston seal works alongside a 20 µm hard-chrome plated carbon-steel rod to ensure low-friction movement. The U flat-end back cover provides a rigid rear mounting face, and the built-in magnet (-S) supports CMSG, DMSG, and EMSG sensor switches for precise position detection in high-speed automation.
Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC25X15SU Technical Specifications
| Model | Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC25X15SU |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder |
| Bore size | Ø25 mm |
| Stroke | 15 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 MBLC25X15SU
| MBL | Aluminum-barrel mini round cylinder, double acting. |
|---|---|
| 25 | Bore size in mm. |
| ×15 | 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 MBLC25X15SU Is Used
PCB Router Z-Axis
Drives the vertical plunge of a PCB depaneling router. The 15mm stroke and 245N force provide rapid tool clearance, while the tuned cushion prevents chassis bounce at the stroke end.
Thermoform Pin Pop-up
Ejects small blister packs from a thermoforming press. The U flat-end rear mounts rigidly to the lower platen, and the magnetic piston triggers a DMSG sensor to confirm ejection.
Connector Insertion Press
Pushes pin headers into automotive connectors. The 25mm bore supplies 206N of pull on retraction, and the adjustable cushion softens the 15mm stroke impact to protect delicate pins.
Is the Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC25X15SU the Right Cylinder?
This 25mm bore generates 245N push at 0.5 MPa. If your assembly requires less force, stepping down to the 20mm bore yields 157N push. If you need more clamping power, the 32mm bore provides 402N push. The 15mm stroke is optimal for micro-movements; for longer travels, AirTAC standard strokes extend up to 500mm. Choose the MBLC over the standard MBL when cycling speeds are high enough that the fixed bumper cannot adequately absorb the kinetic energy. For replacement, match the 25mm bore, 15mm stroke, G1/8 port, M10x1.25 rod thread, PT thread form, U flat-end cover, and the -S magnet. Note that the air cushion only decelerates the piston near the stroke ends; it does not lock the rod. If you need to hold position without continuous air pressure, use an external rod lock or pilot-operated check valve.
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 MBLC25X15SU FAQ
The MBLC25X15SU is a double-acting cylinder with an adjustable air cushion at both ends. It delivers 245N push and 206N pull at 0.5 MPa, 343N push at 0.7 MPa, and a maximum theoretical force of 50 kgf at 1.0 MPa.
Yes, the -S code indicates a built-in magnet compatible with AirTAC CMSG (reed), DMSG, and EMSG (electronic) sensor switches. The cushion is a screw-tunable needle that traps exhaust air to decelerate the piston near the stroke ends; it is not a fixed bumper or a load-holding brake.
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