Airtac MBL Aluminum Alloy Mini Cylinder MBL25X150U
The AirTAC Airtac MBL Aluminum Alloy Mini Cylinder MBL25X150U is a genuine double-acting aluminum-barrel mini round cylinder with a Ø25mm bore and 150mm 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
- Stroke150 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 MBL25X150U
The AirTAC MBL25X150U is a compact double-acting aluminum mini round cylinder engineered for tight machine spaces. It features a 25mm bore and 150mm stroke, generating 245 N of push force and 206 N of pull force at 0.5 MPa. The U suffix denotes a rigid flat-end back cover, providing a solid fixed rear mounting for straightforward inline installations.
This model relies on a fixed rubber bumper to soften end-of-stroke impacts rather than an adjustable air cushion. Its riveted rolling-packed barrel crimps the front and rear covers directly to the tube, yielding a lightweight body that is not designed to be disassembled like a traditional tie-rod cylinder. Furthermore, because this specific SKU lacks the -S magnet suffix, it cannot support a CMSG, DMSG, or EMSG position sensor switch.
Airtac MBL Aluminum Alloy Mini Cylinder MBL25X150U Technical Specifications
| Model | Airtac MBL Aluminum Alloy Mini Cylinder MBL25X150U |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder |
| Bore size | Ø25 mm |
| Stroke | 150 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 MBL25X150U
| MBL | Aluminum-barrel mini round cylinder, double acting. |
|---|---|
| 25 | Bore size in mm. |
| ×150 | 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 MBL25X150U Is Used
PCB Component Insertion
Pushes connectors into printed circuit boards with 245 N of force, where the 150mm stroke accommodates varying board thicknesses on a tight assembly line.
Small Carton Flap Folding
Closes packaging flaps on compact cartoning machines; the rigid U flat-end cover mounts solidly to the frame while the 150mm travel reaches across the box width.
Parts Ejection Chute
Ejects small plastic moulded parts from a press, using the 206 N pull force to retract a 150mm kicker arm clear of the mould before the next cycle.
Is the Airtac MBL Aluminum Alloy Mini Cylinder MBL25X150U the Right Cylinder?
If you need less force, step down to the 20mm bore (157 N push @0.5 MPa); if your application requires more power, step up to the 32mm bore (402 N push @0.5 MPa). For tasks needing spring-return single action, consider the MSBL or MTBL variants, while the MBLC variant provides an adjustable air cushion for heavier loads. Remember that a plain MBL does not hold its load if air pressure drops or the valve is centred—the rod will drift.
With a 150mm stroke on a Ø10mm rod, the unsupported length invites bending under side loads. To prevent rod-bearing wear, use an external guide, pair the cylinder with a CA pivot back cover, or switch to the MBLD double-rod anti-rotation type. Replacement match: 25mm bore, 150mm stroke, G1/8 port, PT thread, U flat-end 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 MBL25X150U FAQ
At 0.5 MPa, this 25mm bore cylinder provides 245 N push and 206 N pull. At 0.7 MPa, the push force is 343 N. The maximum theoretical force is 50 kgf at 1.0 MPa.
No. The base MBL uses a fixed rubber bumper to absorb impact, not an adjustable cushion screw. If your application requires adjustable air cushioning for faster speeds or heavier moving masses, you must specify the MBLC variant.
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