Airtac MBL Aluminum Alloy Mini Cylinder MBL25X30U
The AirTAC Airtac MBL Aluminum Alloy Mini Cylinder MBL25X30U is a genuine double-acting aluminum-barrel mini round cylinder with a Ø25mm bore and 30mm 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
- Stroke30 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionRubber bumper (MBLC variant: adjustable air cushion)
About the Airtac MBL Aluminum Alloy Mini Cylinder MBL25X30U
The AirTAC MBL25X30U is a double-acting aluminum mini round cylinder engineered for tight machine spaces. With a 25mm bore and 30mm stroke, it generates 245 N push and 206 N pull force at 0.5 MPa. The U suffix denotes a rigid flat-end back cover, providing a solid fixed mounting footprint ideal for straight-line push applications. This genuine AirTAC unit uses a riveted rolling-packed barrel, meaning the front and rear covers are crimped to the tube for a lightweight, compact profile rather than using heavy tie rods.
Inside, a heterogeneous two-way piston seal retains grease for long-lasting friction reduction, while the Ø10 mm carbon-steel piston rod features 20 μm hard-chrome plating to resist wear and corrosion. Because this specific SKU lacks the -S suffix, it has no built-in magnet and cannot support CMSG, DMSG, or EMSG electronic position sensors. End-of-stroke energy is absorbed by a fixed rubber bumper, which softens impact but is not an adjustable air cushion.
Airtac MBL Aluminum Alloy Mini Cylinder MBL25X30U Technical Specifications
| Model | Airtac MBL Aluminum Alloy Mini Cylinder MBL25X30U |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder |
| Bore size | Ø25 mm |
| Stroke | 30 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 MBL Aluminum Alloy Mini Cylinder MBL25X30U
| MBL | Aluminum-barrel mini round cylinder, double acting. |
|---|---|
| 25 | Bore size in mm. |
| ×30 | 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 MBL Aluminum Alloy Mini Cylinder MBL25X30U Is Used
PCB Reject Station
Uses the 245 N push force at 0.5 MPa to kick defective printed circuit boards out of a conveyor lane within a 30mm travel distance.
Connector Insertion
Presses small wire-to-board connectors into sockets on electronics assembly lines, relying on the rigid U flat-end rear to resist deflection.
Package Flap Folding
Tucks cardboard flaps on small packaging lines where a 206 N pull stroke retracts the actuator clear of the carton path.
Is the Airtac MBL Aluminum Alloy Mini Cylinder MBL25X30U the Right Cylinder?
If you need slightly less force, step down to the Ø20 bore (157 N push @0.5 MPa); for heavier moving masses, step up to the Ø32 bore (402 N push @0.5 MPa). For faster cycles with heavier loads, consider the MBLC variant, which replaces the fixed rubber bumper with an adjustable air cushion. Keep in mind that a plain MBL cylinder does not hold its load when air pressure is lost or exhausted—the rod will drift. Use an external rod lock or pilot-operated check valve if position must be maintained during an air failure. Replacement match: 25mm bore, 30mm stroke, G1/8 port, PT thread, U flat-end back cover, 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 MBL Aluminum Alloy Mini Cylinder MBL25X30U FAQ
At 0.5 MPa, this 25mm bore cylinder provides 245 N push and 206 N pull force. At 0.7 MPa, the push force increases to 343 N, with a maximum theoretical force of 50 kgf at 1.0 MPa. It uses a Ø10 mm rod with an M10x1.25 rod-end thread.
No. Because this SKU lacks the -S suffix, it has no internal magnet and cannot accept CMSG, DMSG, or EMSG sensor switches. Additionally, the base MBL uses a fixed rubber bumper to soften end-of-stroke impact; you must upgrade to the MBLC variant to get an adjustable air cushion.
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