Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC25X20U
The AirTAC Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC25X20U 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 MBLC Aluminum Alloy Mini Air Cylinder MBLC25X20U
The AirTAC MBLC25X20U is a double-acting aluminum mini cylinder with a 25 mm bore and 20 mm stroke. It generates 245 N of push force and 206 N of pull force at 0.5 MPa. A U flat-end back cover provides rigid rear mounting. Because this SKU lacks the -S suffix, it has no built-in magnet and cannot accept a CMSG, DMSG, or EMSG position sensor.
This variant uses an adjustable air cushion at both stroke ends instead of a fixed rubber bumper. You tune the cushion needle to smoothly decelerate the load, cutting end-cover impact and vibration on fast, short moves. The riveted rolling-packed aluminum barrel keeps the body light and compact for tight spaces, while the 20 um hard-chrome plated carbon-steel rod resists wear against the heterogeneous two-way grease-retaining piston seal.
Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC25X20U Technical Specifications
| Model | Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC25X20U |
|---|---|
| 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 MBLC Aluminum Alloy Mini Air Cylinder MBLC25X20U
| 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 MBLC Aluminum Alloy Mini Air Cylinder MBLC25X20U Is Used
PCB Stacking Heads
Drives a 20 mm stroke stacker arm in a PCB handling line, using the tuned cushion to place boards softly without bouncing the delicate components.
Connector Insertion
Pushes small wire-to-board connectors into sockets on an assembly tester, leveraging 245 N of push force for a reliable, vibration-free seat.
Pouch Dispenser
Feeds flexible packaging film into a sealing jaw on a compact pouch machine, where the short 20 mm stroke and light aluminum body fit the tight frame.
Is the Airtac MBLC Aluminum Alloy Mini Air Cylinder MBLC25X20U the Right Cylinder?
At 245 N push (0.5 MPa), this 25 mm bore fits light-duty actuation. If you need less force, the 20 mm bore offers 157 N push. For heavier payloads, step up to the 32 mm bore providing 402 N push. Choose this MBLC over the base MBL when your cycle speed is high enough that a fixed rubber bumper causes harsh stopping or noise. The U flat-end cover mounts rigidly; use a CA pivot cover if your load arcs. Note that the adjustable cushion only decelerates near the ends and is not a load lock. The cylinder will drift if air is lost or the valve centers. For position holding without live air, add an external rod lock. 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 MBLC Aluminum Alloy Mini Air Cylinder MBLC25X20U FAQ
At 0.5 MPa, it provides 245 N push and 206 N pull. At 0.7 MPa, the push increases to 343 N. The maximum theoretical force is 50 kgf at 1.0 MPa.
A screw-tunable needle at both stroke ends releases trapped air to smoothly decelerate the piston. You adjust it to match the load and speed, preventing harsh end-cover impacts that a fixed rubber bumper cannot absorb.
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 MBLC25X20U
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.