Airtac MBL Aluminum Alloy Mini Cylinder MBL32X25U
The AirTAC Airtac MBL Aluminum Alloy Mini Cylinder MBL32X25U is a genuine double-acting aluminum-barrel mini round cylinder with a Ø32mm bore and 25mm stroke, G1/8 air ports and a fixed rubber bumper. Its compact riveted body suits push, hold and clamp motion in tight machine spaces.
- BoreØ32 mm
- Stroke25 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 MBL32X25U
The AirTAC MBL32X25U is a compact double-acting aluminum mini round cylinder engineered for tight machine spaces. It delivers a push force of 402 N and a pull force of 346 N at 0.5 MPa, making it well-suited for short 25 mm ejection or clamping duties. The riveted rolling-packed barrel keeps the body light and small, though it is not designed to be disassembled and rebuilt like a tie-rod cylinder.
This specific SKU features a U flat-end back cover for rigid rear mounting and uses a standard PT port thread form. Because it lacks the -S suffix for a built-in magnet, this particular cylinder cannot accept a CMSG, DMSG, or EMSG position sensor. Internally, a heterogeneous two-way piston seal retains grease for long service life, while the Ø12 mm carbon-steel piston rod features 20 µm hard-chrome plating for wear and corrosion resistance.
Airtac MBL Aluminum Alloy Mini Cylinder MBL32X25U Technical Specifications
| Model | Airtac MBL Aluminum Alloy Mini Cylinder MBL32X25U |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder |
| Bore size | Ø32 mm |
| Stroke | 25 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 (Ø32mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 402 N | 346 N |
| 0.7 MPa | 563 N | — |
| Max (@1.0 MPa) | 82 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 MBL32X25U
| MBL | Aluminum-barrel mini round cylinder, double acting. |
|---|---|
| 32 | Bore size in mm. |
| ×25 | 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 MBL32X25U Is Used
Electronic Component Ejection
Provides 402 N of push force at 0.5 MPa to eject PCBs or connectors from test fixtures, fitting easily into dense semiconductor assembly machinery.
Packaging Flap Folding
Uses its 25 mm stroke and 346 N pull force to tuck carton flaps on high-speed packaging lines where a larger profile cylinder would obstruct the product flow.
Small Part Clamping
Secures plastic or aluminum housings during light machining or ultrasonic welding, leveraging the rigid U flat-end back cover for stable, fixed mounting.
Is the Airtac MBL Aluminum Alloy Mini Cylinder MBL32X25U the Right Cylinder?
If you need slightly less force, the MBL25X25U offers 245 N of push force at 0.5 MPa; for heavier work, the MBL40X25U provides 628 N. The base MBL relies on a fixed rubber bumper to soften end-of-stroke impact, so if your application requires adjustable end-position cushioning for faster cycling or heavier masses, step up to the MBLC variant. Note that this standard double-acting cylinder does not hold its load or position when air pressure is lost or the valve is centered—the rod will drift or drop. If you need to suspend a load safely without live pressure, install an external rod lock or a pilot-operated check valve. Replacement parts must match the 32 mm bore, 25 mm stroke, G1/8 port, PT thread, and U flat-end cover.
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 MBL32X25U FAQ
At 0.5 MPa, this 32 mm bore cylinder generates 402 N of push force and 346 N of pull force. At 0.7 MPa, the push force increases to 563 N. The maximum theoretical force is 82 kgf at 1.0 MPa.
No. The base MBL32X25U uses a fixed rubber bumper at the end of its stroke, not an adjustable air cushion (you would need the MBLC variant for that). Additionally, because this SKU lacks the -S suffix for a built-in magnet, it cannot be fitted with a CMSG, DMSG, or EMSG sensor switch.
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