Airtac MBL Aluminum Alloy Mini Cylinder MBL25X350SU
The AirTAC Airtac MBL Aluminum Alloy Mini Cylinder MBL25X350SU is a genuine double-acting aluminum-barrel mini round cylinder with a Ø25mm bore and 350mm 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
- Stroke350 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 MBL25X350SU
The AirTAC MBL25X350SU is a compact double-acting aluminum mini round cylinder engineered for tight machine spaces. Operating at 0.5 MPa, it provides 245 N of push force and 206 N of pull force across its 350 mm stroke. This genuine pneumatic component features a G1/8 port and an M10x1.25 rod-end thread. The built-in -S magnet allows precise rod-position detection using AirTAC CMSG (reed) or DMSG and EMSG (solid-state electronic) sensor switches.
This specific SKU utilizes a U flat-end back cover for rigid, fixed mounting. The body uses a riveted rolling-packed aluminum barrel where the covers are crimped to the tube, ensuring a lightweight footprint but meaning it is not designed to be disassembled like a tie-rod cylinder. Instead of an adjustable cushion, the base MBL relies on a fixed rubber bumper to soften end-of-stroke impacts.
Airtac MBL Aluminum Alloy Mini Cylinder MBL25X350SU Technical Specifications
| Model | Airtac MBL Aluminum Alloy Mini Cylinder MBL25X350SU |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder |
| Bore size | Ø25 mm |
| Stroke | 350 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 MBL25X350SU
| MBL | Aluminum-barrel mini round cylinder, double acting. |
|---|---|
| 25 | Bore size in mm. |
| ×350 | 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 MBL25X350SU Is Used
PCB conveyor diverting
Uses the 245 N push force at 0.5 MPa to deflect populated PCBs on a 350 mm travel path within compact electronics assembly machinery.
Pouch forming jaws
Cycles the forming jaw on a vertical form-fill-seal machine, relying on the -S magnet and DMSG sensor to confirm the 350 mm stroke end-position for bag sealing.
Pharma carton feeding
Pushes flat pharmaceutical carton blanks into a loading chute, where the U flat-end back cover provides rigid stability without pivot sway.
Is the Airtac MBL Aluminum Alloy Mini Cylinder MBL25X350SU the Right Cylinder?
Stepping down to the 20 mm bore reduces the push force to 157 N at 0.5 MPa, whereas moving up to the 32 mm bore increases it to 402 N. Choose the MBLC variant if your application requires adjustable air cushioning for heavier moving loads, or the MSBL/MTBL single-acting versions if you only need a push or pull action. Because this is a 350 mm stroke on a Ø10 mm rod, the cylinder has low side-load tolerance; an external guide or a pivot mounting accessory is highly recommended to prevent rod-bearing bending under lateral stress. Note that the fixed rubber bumper softens impact but does not lock the rod—this cylinder will drift or drop if air pressure is lost, so a pilot-operated check valve is needed to hold a load safely. Replacement matches: 25 mm bore, 350 mm stroke, G1/8 port, PT thread, U flat-end back cover, no mounting accessory included, with a built-in magnet (-S).
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 MBL25X350SU FAQ
At 0.5 MPa, this 25 mm bore cylinder outputs 245 N push and 206 N pull. At 0.7 MPa, the push force is 343 N, with a theoretical maximum of 50 kgf at 1.0 MPa. The operational speed range is 30-800 mm/s.
No, the base MBL uses a fixed rubber bumper, not an adjustable cushion screw. If you need adjustable air cushioning to decelerate heavier loads at the end of the 350 mm stroke, you must step up to the MBLC variant.
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