Airtac MBL Aluminum Alloy Mini Cylinder MBL25X400SCA
The AirTAC Airtac MBL Aluminum Alloy Mini Cylinder MBL25X400SCA is a genuine double-acting aluminum-barrel mini round cylinder with a Ø25mm bore and 400mm 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
- Stroke400 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 MBL25X400SCA
The AirTAC MBL25X400SCA is a compact double-acting aluminum mini round cylinder engineered for tight machine spaces. It generates 245 N of push force and 206 N of pull force at 0.5 MPa across a 400 mm stroke. Because this SKU includes the CA pivot back cover, it is designed to swing on a pin to accommodate arcing or angular loads, which is highly beneficial for long-stroke rotary motions. The riveted rolling-packed barrel keeps the body light and compact but means it is not designed to be disassembled like a tie-rod cylinder.
This specific configuration includes a built-in magnet (-S) for CMSG, DMSG, or EMSG sensor switches to detect rod position, and uses a standard PT port thread form. The Ø10 mm piston rod features a heterogeneous two-way piston seal that retains grease for long service life, while the carbon steel rod with 20 μm hard-chrome plating provides wear and corrosion resistance. End-of-stroke energy is absorbed by a fixed rubber bumper rather than an adjustable air cushion.
Airtac MBL Aluminum Alloy Mini Cylinder MBL25X400SCA Technical Specifications
| Model | Airtac MBL Aluminum Alloy Mini Cylinder MBL25X400SCA |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder |
| Bore size | Ø25 mm |
| Stroke | 400 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 MBL25X400SCA
| MBL | Aluminum-barrel mini round cylinder, double acting. |
|---|---|
| 25 | Bore size in mm. |
| ×400 | 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 MBL25X400SCA Is Used
Textile Loom Thread Guide
Drives a 400 mm traversing thread guide on a weaving loom, where the CA pivot back cover accommodates the slight angular arc of the carriage and the 245 N push force maintains steady tension.
Packaging Box Flap Folder
Extends across a 400 mm span to fold cardboard flaps on a packaging line, using the integrated magnet (-S) with a DMSG solid-state sensor to confirm full extension before the sealing head descends.
Warehouse Sortation Diverter
Pushes parcels down a 400 mm sortation lane on a conveyor; the lightweight aluminum riveted body minimizes overhead mass on the high-speed moving carriage.
Is the Airtac MBL Aluminum Alloy Mini Cylinder MBL25X400SCA the Right Cylinder?
With a 400 mm stroke, the unsupported Ø10 mm rod is highly susceptible to bending under side loads; always use an external guide or rely on the CA pivot back cover to absorb angular stress. If your application requires adjustable end-position cushioning for heavier moving masses, step up to the MBLC variant. If you need to hold a load in place without live air pressure, note that this cylinder will drift or drop when air is exhausted—the fixed rubber bumper softens impact but does not function as a rod lock or brake.
To size this bore both ways: stepping down to the 20 mm bore reduces the output to 157 N push at 0.5 MPa, while stepping up to the 32 mm bore increases the force to 402 N push at 0.5 MPa. This MBL25X400SCA features a 25 mm bore, 400 mm stroke, G1/8 port size, PT thread form, CA pivot back cover, and a built-in 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 MBL25X400SCA FAQ
The 25 mm bore generates 245 N push and 206 N pull at 0.5 MPa, 343 N push at 0.7 MPa, and a maximum theoretical force of 50 kgf at 1.0 MPa. The operating pressure range is 0.15-1.0 MPa.
No, the base MBL uses a fixed rubber bumper to soften end-of-stroke impact, not an adjustable cushion screw. If your 400 mm stroke moves a heavy load requiring adjustable deceleration, select the MBLC variant for its adjustable air cushion.
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