Airtac MBL Aluminum Alloy Mini Cylinder MBL25X125SCA
The AirTAC Airtac MBL Aluminum Alloy Mini Cylinder MBL25X125SCA is a genuine double-acting aluminum-barrel mini round cylinder with a Ø25mm bore and 125mm 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
- Stroke125 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 MBL25X125SCA
The AirTAC MBL25X125SCA is a double-acting aluminum mini round cylinder engineered for tight machine spaces. It delivers a push force of 245 N and a pull force of 206 N at 0.5 MPa, making this 125 mm stroke variant well-suited for mid-range component ejection and positioning tasks. As a genuine AirTAC component, it features a compact, riveted rolling-packed barrel where the covers are crimped to the tube, ensuring a lightweight footprint that is not designed to be disassembled like a traditional tie-rod body.
This specific SKU includes a built-in magnet (-S) for rod position detection via AirTAC CMSG reed or DMSG/EMSG electronic switches. It is configured with a CA pivot (clevis) back cover, allowing the cylinder to swing on a pin to accommodate arcing or angular loads. The carbon-steel piston rod features a 20 um hard-chrome plating for wear resistance, and the heterogeneous two-way piston seal effectively retains grease for a long service life. End-of-stroke deceleration is handled by a fixed rubber bumper, not an adjustable cushion screw.
Airtac MBL Aluminum Alloy Mini Cylinder MBL25X125SCA Technical Specifications
| Model | Airtac MBL Aluminum Alloy Mini Cylinder MBL25X125SCA |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder |
| Bore size | Ø25 mm |
| Stroke | 125 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 MBL25X125SCA
| MBL | Aluminum-barrel mini round cylinder, double acting. |
|---|---|
| 25 | Bore size in mm. |
| ×125 | 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 MBL25X125SCA Is Used
Angular Component Ejection
Ideal for pivoting small aluminum castings out of a CNC machining envelope, utilizing the CA clevis to absorb the arcing motion of the ejection arm over the 125 mm travel.
PCB Test Fixture Actuation
Drives a testing probe carriage with 245 N of force, relying on the -S magnet and a DMSG solid-state switch to confirm the exact engagement position before the electrical test begins.
Light Carton Diverting
Pushes lightweight packaging cartons on a conveyor sorting line, where the fixed rubber bumper safely absorbs the end-of-stroke impact without damaging the thin-walled boxes.
Is the Airtac MBL Aluminum Alloy Mini Cylinder MBL25X125SCA the Right Cylinder?
Select this 25 mm bore when an application requires 245 N of push force at 0.5 MPa with a 125 mm stroke. If you need less force, the neighbouring 20 mm bore provides 157 N of push force. If your mechanism requires more thrust, stepping up to the 32 mm bore yields 402 N. Because this SKU lacks an adjustable air cushion, you should choose the MBLC variant if your payload moves rapidly and requires precise end-of-stroke deceleration. For single-acting push or pull operations in the 20-40 mm bore range, consider the MSBL or MTBL series.
The CA pivot back cover is essential for safely managing angular loads during the 125 mm stroke. Note that a plain MBL does not hold its position when air pressure is lost; the rod will drift if the valve is centered or exhausted, so an external rod lock or pilot-operated check valve is required for fail-safe load holding. For replacement, match the 25 mm bore, 125 mm stroke, G1/8 port, PT thread, CA pivot back cover, and -S 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 MBL25X125SCA FAQ
At 0.5 MPa, this 25 mm bore cylinder provides 245 N of push force and 206 N of pull force. At 0.7 MPa, the push force increases to 343 N, with a theoretical maximum of 50 kgf at 1.0 MPa. The operational speed ranges from 30-800 mm/s.
No, the base MBL uses a fixed rubber bumper to soften the end-of-stroke impact and does not feature an adjustable cushion screw. If your 125 mm stroke application involves a heavy or fast-moving payload that requires precise end-of-stroke deceleration, you should step up to the AirTAC MBLC variant which includes an adjustable air cushion.
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