Airtac MBL Aluminum Alloy Mini Cylinder MBL25X100U
The AirTAC Airtac MBL Aluminum Alloy Mini Cylinder MBL25X100U is a genuine double-acting aluminum-barrel mini round cylinder with a Ø25mm bore and 100mm 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
- Stroke100 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 MBL25X100U
The AirTAC MBL25X100U is a compact double-acting aluminum mini round cylinder engineered for tight machine spaces. It delivers 245 N of push force and 206 N of pull force at 0.5 MPa, making it well-suited for 100 mm stroke tasks like small part ejection or gate actuation. The U suffix denotes a rigid flat-end back cover for direct foot-style mounting. As a genuine AirTAC component, it provides reliable performance without claiming ISO dimensional interchangeability.
Unlike tie-rod cylinders, this unit features a riveted rolling-packed barrel where the front and rear covers are crimped to the tube, prioritizing low weight and a small footprint over rebuildability. Internal longevity is handled by a heterogeneous two-way piston seal that retains grease, while the Ø10 mm carbon-steel piston rod is protected by 20 µm hard-chrome plating for wear and corrosion resistance. Note that because this specific SKU lacks the -S suffix, it cannot accept a CMSG, DMSG, or EMSG position sensor switch.
Airtac MBL Aluminum Alloy Mini Cylinder MBL25X100U Technical Specifications
| Model | Airtac MBL Aluminum Alloy Mini Cylinder MBL25X100U |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder |
| Bore size | Ø25 mm |
| Stroke | 100 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 MBL25X100U
| MBL | Aluminum-barrel mini round cylinder, double acting. |
|---|---|
| 25 | Bore size in mm. |
| ×100 | 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 MBL25X100U Is Used
PCB Router Ejection
Deploys 245 N at 0.5 MPa to push singulated printed circuit boards out of a routing fixture, utilizing the 100 mm stroke to clear the work zone completely.
Carton Flap Folding
Actuates small packaging machine side flaps on compact taping heads where the rigid U flat-end rear mount provides a stable pivot point for the 100 mm travel.
Test Socket Clamping
Holds delicate semiconductor test sockets under 206 N of pull force at 0.5 MPa, taking advantage of the riveted aluminum body's minimal footprint in dense tester arrays.
Is the Airtac MBL Aluminum Alloy Mini Cylinder MBL25X100U the Right Cylinder?
If your application requires slightly less force, stepping down to the Ø20 bore provides 157 N of push at 0.5 MPa. Conversely, if you need more power, the Ø32 bore offers 402 N of push at 0.5 MPa. This base MBL model uses a fixed rubber bumper to soften end-of-stroke impact; for faster or heavier loads requiring adjustable air cushioning, select the MBLC variant. Keep in mind that the rubber bumper is not a locking mechanism—if air pressure drops or the valve is centered, the rod will drift and cannot hold a load without an external rod lock or pilot-operated check valve.
With a 100 mm stroke on a Ø10 mm rod, side-load tolerance is limited. For this length, ensure proper alignment or use an external guide to prevent rod-bearing bending. This SKU uses a G1/8 port with a PT thread form, a U flat-end back cover, and no built-in magnet. To match this configuration when replacing, specify the 25 mm bore, 100 mm stroke, PT thread, and rigid U rear cover.
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 MBL25X100U FAQ
At 0.5 MPa, this double-acting cylinder provides 245 N of push force and 206 N of pull force. At 0.7 MPa, the push force increases to 343 N, with a maximum theoretical force of 50 kgf at 1.0 MPa. It operates at speeds ranging from 30 to 800 mm/s.
No, the base MBL25X100U uses a fixed rubber bumper, not an adjustable air cushion screw (for adjustable cushioning, choose the MBLC variant). Additionally, because this SKU lacks the -S magnet suffix, it cannot be fitted with CMSG, DMSG, or EMSG electronic or reed position sensors.
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