Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC25X80U
The AirTAC Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC25X80U is a genuine double-acting aluminum-barrel mini round cylinder with a Ø25mm bore and 80mm 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
- Stroke80 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 MBLC25X80U
The AirTAC MBLC25X80U is a compact double-acting aluminum mini cylinder engineered for 80 mm strokes, delivering a 245 N push and 206 N pull at 0.5 MPa. Unlike the standard bumper version, this variant features a screw-adjustable pneumatic air cushion at both ends. Tuning the cushion needle lets you decelerate the piston smoothly near stroke extremes, effectively minimizing end-cover impact, vibration, and noise when cycling heavier loads at higher speeds. It is a deceleration feature, not a mechanical lock.
This model utilizes a riveted rolling-packed aluminum barrel for a lightweight, space-saving profile that fits easily into tight machine cells. The Ø10 mm carbon-steel rod is protected by a 20 µm hard-chrome plating, while a heterogeneous two-way grease-retaining piston seal ensures consistent lubrication over the 30-800 mm/s operating speed range. Because this specific SKU lacks the -S suffix, it is built without a magnet and cannot host a CMSG, DMSG, or EMSG position sensor.
Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC25X80U Technical Specifications
| Model | Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC25X80U |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder |
| Bore size | Ø25 mm |
| Stroke | 80 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 MBLC25X80U
| MBL | Aluminum-barrel mini round cylinder, double acting. |
|---|---|
| 25 | Bore size in mm. |
| ×80 | 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 MBLC25X80U Is Used
PCB Depaneling Router
Provides 245 N of thrust to plunge an 80 mm stroke cutting bit into assembled circuit boards, utilizing the tuned air cushion to prevent jarring stops that could fracture delicate traces.
Carton Flap Folder
Drives a compact folding arm on high-speed packaging lines, using the adjustable end-of-stroke cushion to smoothly tuck corrugated flaps without crushing the cardboard box edges.
Connector Insertion Press
Pushes electronic ribbon connectors into headers with a controlled 206 N pull force, relying on the cushion needle to decelerate the piston before impact protects fragile housings.
Is the Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC25X80U the Right Cylinder?
Choose this 25 mm bore when an application requires roughly 245 N of push force at 0.5 MPa. If your payload is lighter, stepping down to the 20 mm bore yields 157 N of push force, whereas moving up to the 32 mm bore provides 402 N for heavier resistance. The U flat-end back cover provides rigid, straight-line mounting, making it ideal for fixed thrust applications rather than arcing or pivoting movements.
At an 80 mm stroke, the Ø10 mm rod handles moderate extension well, but always ensure external guidance for heavy off-center loads to prevent rod bending. Note that a plain double-acting cylinder does not hold position if air pressure drops or the valve centers; the rod will drift. For secure mid-stroke holding without live air, integrate an external rod lock or pilot-operated check valve. This unit uses a PT tapered port thread and an M10x1.25 rod-end thread.
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 MBLC25X80U FAQ
This 25 mm bore cylinder uses a G1/8 port and an M10x1.25 rod thread. At 0.5 MPa it pushes with 245 N and pulls with 206 N. At 0.7 MPa the push increases to 343 N. The maximum theoretical force is 50 kgf at 1.0 MPa.
The MBLC25X80U features screw-tunable pneumatic cushions at both ends rather than a fixed rubber bumper. By adjusting the needle valve, you control the exhaust flow to decelerate the piston smoothly near the 80 mm stroke ends, which is critical for reducing noise and end-cover impact on faster cycles. It only decelerates near the ends and does not lock the load.
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