Airtac MBL Aluminum Alloy Mini Cylinder MBL25X175U
The AirTAC Airtac MBL Aluminum Alloy Mini Cylinder MBL25X175U is a genuine double-acting aluminum-barrel mini round cylinder with a Ø25mm bore and 175mm 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
- Stroke175 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 MBL25X175U
The AirTAC MBL25X175U is a double-acting aluminum mini round cylinder engineered for tight machine spaces. With a 25mm bore and 175mm stroke, it provides 245N push and 206N pull force at 0.5 MPa. The U suffix denotes a rigid flat-end back cover for direct fixed mounting. The body uses a riveted rolling-packed construction, crimping the covers to the barrel for a lightweight footprint that is not designed to be disassembled like a tie-rod body.
Inside, a heterogeneous two-way piston seal retains grease for long service life, while the carbon steel piston rod features 20µm hard-chrome plating to resist wear and corrosion. Because this specific SKU lacks the -S suffix, it has no built-in magnet and cannot accept a CMSG, DMSG, or EMSG position sensor. End-of-stroke deceleration relies on a fixed rubber bumper, not an adjustable cushion.
Airtac MBL Aluminum Alloy Mini Cylinder MBL25X175U Technical Specifications
| Model | Airtac MBL Aluminum Alloy Mini Cylinder MBL25X175U |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder |
| Bore size | Ø25 mm |
| Stroke | 175 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 MBL25X175U
| MBL | Aluminum-barrel mini round cylinder, double acting. |
|---|---|
| 25 | Bore size in mm. |
| ×175 | 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 MBL25X175U Is Used
PCB Router Gantry
Drives a light pick-and-place head across a 175mm travel path in a compact PCB assembly router, utilizing the 245N push force to shift low-mass electronic components precisely.
Carton Flap Folder
Actuates a folding arm on a small packaging line to tuck minor flaps before sealing, where the 206N pull force easily retracts the mechanism in a narrow machine frame.
Lab Tube Ejector
Pushes a rack of centrifuge tubes out of a heating block in a clinical diagnostic analyzer, fitting the rigid U flat-end mount directly against the machine subplate.
Is the Airtac MBL Aluminum Alloy Mini Cylinder MBL25X175U the Right Cylinder?
At 0.5 MPa, this 25mm bore generates 245N of push force. If your application requires less force, step down to the 20mm bore (157N push); if you need more power, step up to the 32mm bore (402N push). For faster or heavier moving loads requiring end-stroke deceleration control, select the MBLC variant with adjustable air cushioning instead of this fixed bumper model. If you only need spring-extended or spring-retracted motion, consider the MSBL or MTBL single-acting versions.
This 175mm stroke model uses a Ø10mm rod. Because the stroke is 175mm, you must manage side-load carefully—long unsupported mini rods bend under lateral stress. Use an external guide rail to prevent rod-bearing wear. Note that a plain MBL does not hold its position or load when air pressure is lost; the rod drifts. Use an external rod lock or pilot-operated check valve if gravity or load holding 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 MBL Aluminum Alloy Mini Cylinder MBL25X175U FAQ
The 25mm bore generates 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. The port size is G1/8 with a PT thread form, and the rod-end thread is M10x1.25.
No. This SKU lacks the -S suffix, meaning it has no internal magnet and cannot fit CMSG, DMSG, or EMSG 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 adjustable air cushioning.
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