Airtac MBL Aluminum Alloy Mini Cylinder MBL25X20U
The AirTAC Airtac MBL Aluminum Alloy Mini Cylinder MBL25X20U is a genuine double-acting aluminum-barrel mini round cylinder with a Ø25mm bore and 20mm 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
- Stroke20 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 MBL25X20U
The AirTAC MBL25X20U is a compact double-acting aluminum mini round cylinder engineered for tight machine spaces. At 0.5 MPa it delivers 245 N push and 206 N pull force, making it well-suited for short 20 mm actuation tasks. The riveted rolling-packed barrel design keeps the body light and small, though it is not designed to be disassembled like a tie-rod cylinder.
This SKU features a rigid U flat-end back cover for fixed rear mounting. The Ø10 mm carbon steel rod has 20 µm hard-chrome plating for wear resistance, paired with a heterogeneous two-way piston seal that retains grease for long life. Because this specific configuration lacks the -S suffix, it cannot accept a CMSG, DMSG, or EMSG position sensor.
Airtac MBL Aluminum Alloy Mini Cylinder MBL25X20U Technical Specifications
| Model | Airtac MBL Aluminum Alloy Mini Cylinder MBL25X20U |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder |
| Bore size | Ø25 mm |
| Stroke | 20 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 MBL25X20U
| MBL | Aluminum-barrel mini round cylinder, double acting. |
|---|---|
| 25 | Bore size in mm. |
| ×20 | 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 MBL25X20U Is Used
PCB Test Sockets
Provides 245 N of push force at 0.5 MPa to drive 20 mm travel on automated PCB test fixtures, ensuring precise electrical contact without crushing delicate components.
Packaging Flap Folders
Executes a rapid 20 mm stroke to tuck or fold cardboard end-flaps on small format packaging lines where a larger ISO cylinder would consume too much footprint.
Microplate Sealing
Applies 206 N of pull force to press a 25 mm rod down onto adhesive film, sealing 96-well microplates in compact laboratory automation equipment.
Is the Airtac MBL Aluminum Alloy Mini Cylinder MBL25X20U the Right Cylinder?
If you need less force, step down to the Ø20 bore (157 N push @0.5 MPa); for heavier moves, step up to the Ø32 bore (402 N push @0.5 MPa). The base MBL uses a fixed rubber bumper to soften end-of-stroke impact rather than an adjustable air cushion—choose the MBLC variant if you need screw-adjustable cushioning for faster cycles. This cylinder cannot hold a load if air pressure drops; add an external rod lock or pilot-operated check valve for fail-safe positioning. Replacement match: 25 mm bore, 20 mm stroke, G1/8 port, PT thread, U back cover, no 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 MBL25X20U FAQ
At 0.5 MPa, this 25 mm bore cylinder provides 245 N push and 206 N pull force. At 0.7 MPa, push increases to 343 N, with a theoretical maximum of 50 kgf at 1.0 MPa. It operates at speeds between 30-800 mm/s.
No. The base MBL25X20U uses a fixed rubber bumper on the end caps, not an adjustable air cushion (you would need the MBLC variant for that). Additionally, because this SKU lacks the -S suffix, it has no internal magnet and cannot accept CMSG, DMSG, or EMSG electronic or reed position switches.
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 MBL Aluminum Alloy Mini Cylinder MBL25X20U
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.