Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC25X125SU
The AirTAC Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC25X125SU 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 MBLC Aluminum Alloy Mini Air Cylinder MBLC25X125SU
The AirTAC MBLC25X125SU is a double-acting aluminum mini cylinder engineered for compact spaces requiring precise end-of-stroke control. It generates 245 N of push force and 206 N of pull force at 0.5 MPa across a 125 mm stroke. Unlike the standard fixed-bumper MBL, this variant features a screw-adjustable pneumatic cushion at both ends, allowing you to tune the deceleration rate to match heavier loads or faster cycling speeds, thereby minimizing impact noise and end-cover wear.
This specific configuration includes a U flat-end back cover for rigid rear mounting and a built-in magnet (the S code) for position detection. The riveted rolling-packed aluminum barrel keeps the unit lightweight, while the Ø10 mm carbon-steel rod features 20 µm hard-chrome plating to resist corrosion and scoring. The heterogeneous two-way grease-retaining piston seal ensures consistent lubrication over the cylinder's operational life.
Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC25X125SU Technical Specifications
| Model | Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC25X125SU |
|---|---|
| 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 MBLC Aluminum Alloy Mini Air Cylinder MBLC25X125SU
| 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 MBLC Aluminum Alloy Mini Air Cylinder MBLC25X125SU Is Used
PCB Depaneling Router
Provides the 245 N push force needed to clamp populated circuit boards during routing, while the tuned air cushion absorbs the rapid 125 mm stroke impact to protect delicate solder joints from shock.
Connector Insertion Press
Drives delicate ribbon connectors into sockets with a 125 mm stroke, using the -S magnet to confirm insertion depth and the adjustable cushion to prevent hard mechanical crashes at full extension.
Carton Flap Folder
Actuates a folding arm on a packaging line where the 206 N pull force retracts the mechanism, and the needle-tuned cushion dampens the high-frequency cycling noise generated by the riveted aluminum body.
Is the Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC25X125SU the Right Cylinder?
Select this 25 mm bore when your application requires 245 N of thrust at 0.5 MPa but the 20 mm bore (157 N push) is underpowered, or when you want a more compact footprint than the 32 mm bore (402 N push). The 125 mm stroke is ideal for mid-range linear actuation. Choose this MBLC cushioned version over the base MBL if your cycle speeds push past the point where a fixed rubber bumper causes excessive shock or vibration.
The adjustable air cushion only decelerates the piston near the stroke ends; it is not a brake and will not hold the rod in place if air pressure is lost or the valve centers. For position holding without live air, an external rod lock or pilot-operated check valve is required. This SKU uses a PT port thread, a U flat-end back cover, and includes the -S magnet for use with CMSG, DMSG, or EMSG sensor switches.
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 MBLC Aluminum Alloy Mini Air Cylinder MBLC25X125SU 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. The maximum theoretical force is 50 kgf at 1.0 MPa. It uses a G1/8 port, a Ø10 mm rod with an M10x1.25 thread, and operates at speeds between 30 and 800 mm/s.
The adjustable air cushion uses a screw-tuned needle valve at both ends to trap and bleed exhaust air, decelerating the piston smoothly before it hits the end cover. This protects the cylinder on fast or heavy moves, unlike a fixed rubber bumper. The -S code indicates a built-in magnet that allows external CMSG (reed) or DMSG/EMSG (electronic) sensors to detect the rod position.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC25X125SU
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.