Airtac MBL Aluminum Alloy Mini Cylinder MBL25X50U
The AirTAC Airtac MBL Aluminum Alloy Mini Cylinder MBL25X50U is a genuine double-acting aluminum-barrel mini round cylinder with a Ø25mm bore and 50mm 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
- Stroke50 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionRubber bumper (MBLC variant: adjustable air cushion)
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac MBL Aluminum Alloy Mini Cylinder MBL25X50U
The AirTAC MBL25X50U is a double-acting aluminum mini round cylinder engineered for tight machine spaces. Generating 245 N of push force and 206 N of pull force at 0.5 MPa, it suits light-duty positioning and ejection tasks. The U suffix denotes a rigid flat-end rear cover, providing a fixed mounting footprint where axial alignment is guaranteed. Unlike tie-rod bodies, the aluminum barrel is riveted and rolling-packed, crimping the covers to the tube for minimal weight, though this means the unit is not designed to be disassembled for rebuilding.
Internal mechanics feature a heterogeneous two-way piston seal that retains grease for long cycle life, paired with a carbon-steel piston rod plated with 20 µm of hard chrome to resist wear and corrosion. Because this specific SKU lacks the -S magnet suffix, it cannot accommodate a CMSG, DMSG, or EMSG sensor switch for position detection. End-of-stroke deceleration is handled by a fixed rubber bumper, which softens impact but is not an adjustable air cushion or a mechanical lock.
Airtac MBL Aluminum Alloy Mini Cylinder MBL25X50U Technical Specifications
| Model | Airtac MBL Aluminum Alloy Mini Cylinder MBL25X50U |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder |
| Bore size | Ø25 mm |
| Stroke | 50 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 MBL25X50U
| MBL | Aluminum-barrel mini round cylinder, double acting. |
|---|---|
| 25 | Bore size in mm. |
| ×50 | 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 MBL25X50U Is Used
PCB Depaneling Ejector
Uses the 245 N push force at 0.5 MPa to eject singulated circuit boards from a routing fixture without damaging delicate surface-mount components.
Pharmaceutical Tray Loader
Employs the 50 mm stroke and rigid U flat-end mounting to push lightweight metal trays into a sealing press within a compact packaging machine envelope.
Connector Insertion Press
Relies on the 206 N pull force and 20 µm chrome-plated carbon rod to retract an insertion toolhead after seating a ribbon cable connector into an electronics housing.
Is the Airtac MBL Aluminum Alloy Mini Cylinder MBL25X50U the Right Cylinder?
If your application requires less force, stepping down to the 20 mm bore yields 157 N of push force at 0.5 MPa, while moving up to the 32 mm bore provides 402 N for heavier loads. The G1/8 port and M10x1.25 rod-end thread remain standard for this 25 mm bore. To replace this exact unit, match the 25 mm bore, 50 mm stroke, PT tapered port thread, U flat-end back cover, and double-acting function without a magnet.
For faster or heavier moving masses that require end-stroke tuning, select the MBLC variant, which adds an adjustable air cushion instead of the fixed rubber bumper. If your process loses supply pressure, this cylinder will not hold its load or position—the rod drifts or drops when air is exhausted or the valve is centered. An external rod lock or pilot-operated check valve is required for fail-safe holding.
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 MBL25X50U FAQ
At 0.5 MPa, this 25 mm bore cylinder generates 245 N of push force and 206 N of pull force. At 0.7 MPa, the push force increases to 343 N. The maximum theoretical force is 50 kgf at 1.0 MPa, and the cylinder operates within a 0.15-1.0 MPa pressure range.
No. The base MBL25X50U uses a fixed rubber bumper to soften end-of-stroke impact, not an adjustable air cushion (for that, use the MBLC variant). Additionally, because this SKU lacks the -S magnet suffix, it cannot accept CMSG, DMSG, or EMSG electronic position sensors.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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