Airtac MBLD Dual Axis Type Mini Cylinder MBLD25X300
The AirTAC Airtac MBLD Dual Axis Type Mini Cylinder MBLD25X300 is a genuine double-acting double-rod aluminum-barrel mini cylinder with a Ø25mm bore and 300mm stroke. A rod exits both end covers, so extend and retract force are EQUAL — about 206 N each way at 0.5 MPa. Fixed rubber bumper.
- BoreØ25 mm
- Stroke300 mm
- Port sizeG1/8
- Acting typeDouble acting, double rod
- Rod threadM10×1.25
- CushionFixed rubber bumper
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac MBLD Dual Axis Type Mini Cylinder MBLD25X300
The AirTAC MBLD25X300 is a compact, double-acting double-rod mini cylinder featuring a 25mm bore and 300mm stroke. Because a Ø10mm carbon-steel rod exits both ends of the riveted aluminum barrel, the annulus area is identical on both sides. This yields exactly 206N of force at 0.5 MPa in both extend and retract directions, ensuring perfectly balanced motion for symmetrical mechanisms.
At 300mm of travel, the overall length extends by A + 2 x stroke, meaning the rear rod protrudes significantly and requires dedicated clearance in your layout. The cylinder uses a fixed rubber bumper to soften end-of-stroke impacts and has no built-in magnet. Consequently, this specific SKU cannot support CMSG, DMSG, or EMSG position sensors without a model change.
Airtac MBLD Dual Axis Type Mini Cylinder MBLD25X300 Technical Specifications
| Model | Airtac MBLD Dual Axis Type Mini Cylinder MBLD25X300 |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder (double rod) |
| Bore size | Ø25 mm |
| Stroke | 300 mm |
| Acting type | Double acting, double rod |
| 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 | Fixed rubber bumper |
| Max standard stroke | Up to 300 mm |
Double-rod overall length = A + 2 × stroke — leave clearance for the rear rod. MBLD/MBLCD mounting is Basic / FA / LB only (no SDB, no back-cover code). Thread options: PT / G / NPT.
Output Force (Ø25mm, equal both ways)
| Pressure | Extend & retract force |
|---|---|
| 0.5 MPa | 206 N |
| 0.7 MPa | 289 N |
| Max (@1.0 MPa) | 42 kgf |
A rod on both piston faces makes the annulus area equal, so extend and retract force (and speed) are the same. Actual usable force is lower due to friction.
Model Code: Airtac MBLD Dual Axis Type Mini Cylinder MBLD25X300
| MBLD | MBLD aluminum-barrel double-rod mini cylinder. |
|---|---|
| 25 | Bore size in mm. |
| ×300 | Stroke length in mm. |
| S | Optional built-in magnet for a CMSG/DMSG/EMSG sensor switch. |
| FA / LB | Mounting: FA flange or LB foot (no SDB on double-rod). |
Related: MBLCD (double rod, adjustable cushion), MBLC (single rod + cushion), MBL (single rod).
Where the Airtac MBLD Dual Axis Type Mini Cylinder MBLD25X300 Is Used
PCB Edge Conveyor Transfer
Drives a dual-sided pusher arm in an electronics assembly line, using the 300mm stroke to bridge conveyor lanes while the twin rods prevent binding during the 206N transfer cycle.
Textile Loom Tension Flag
Mounts a mechanical position flag on the rear rod to trigger a cam switch, leveraging the equal 206N extend and retract forces to maintain consistent fabric tension across the 300mm loom path.
Semiconductor Wafer Cassette Loader
Actuates a dual-sided pick-and-place gantry in cleanroom wafer handling, where the compact 25mm body fits between processing stations and the fixed rubber bumper ensures soft 300mm end-stroke deceleration.
Is the Airtac MBLD Dual Axis Type Mini Cylinder MBLD25X300 the Right Cylinder?
When sizing this 25mm bore, step down to the 20mm bore if you only need 132N @0.5 MPa, or step up to the 32mm bore for 346N @0.5 MPa. The 300mm stroke is the maximum standard limit for this bore; longer travels demand moving to the 32mm bore family which extends up to 500mm. Because a 300mm stroke on a small Ø10mm rod invites side-load bending, an external guide rail is strongly recommended to prevent premature seal wear.
Unlike the single-rod MBL which provides higher forward push force, this MBLD prioritizes equal bidirectional output and twin-rod anti-rotation. Mounting is restricted to Basic, FA flange, or LB foot styles; there is no SDB pivot bracket or back-cover option. If your application requires position holding, note that the rubber bumper is not a lock—the cylinder drifts without live air pressure. Replacement requires matching the 25mm bore, 300mm stroke, G1/8 port, PT thread, and lack of a magnet.
Quick checklist
- ✓ Equal force both ways at your pressure
- ✓ Rear-rod clearance (length = A + 2 × stroke)
- ✓ Mounting: Basic / FA / LB only
- ✓ Magnet (S) for sensors?
- ✓ Side load — add a guide on long strokes
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Leave clearance for the rear rod (length = A + 2 × stroke).
- check Avoid side load; add an external guide on long strokes.
- check Mounting: Basic / FA flange / LB foot (no SDB, no back-cover code).
- check Installation by qualified personnel per AirTAC docs.
Airtac MBLD Dual Axis Type Mini Cylinder MBLD25X300 FAQ
Because the double-rod design creates equal annulus areas on both sides, the push and pull forces are identical: 206N @0.5 MPa, 289N @0.7 MPa, and a theoretical maximum of 42 kgf @1.0 MPa. It relies on a fixed rubber bumper for end-of-stroke cushioning and does not have an adjustable air cushion.
The double-rod configuration provides equal force and speed in both directions, and allows you to mount a secondary tool, cam, or position flag on the rear rod while keeping the load guided against rotation. This specific MBLD25X300 SKU lacks the -S magnet option, so it cannot support CMSG, DMSG, or EMSG electronic position sensors.
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