Airtac MBLD Dual Axis Type Mini Cylinder MBLD25X40S
The AirTAC Airtac MBLD Dual Axis Type Mini Cylinder MBLD25X40S is a genuine double-acting double-rod aluminum-barrel mini cylinder with a Ø25mm bore and 40mm 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
- Stroke40 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 MBLD25X40S
The AirTAC MBLD25X40S is a double-acting, double-rod aluminum mini cylinder featuring a 25mm bore and 40mm stroke. Because a Ø10mm carbon-steel rod protrudes from both end covers, the piston's annular area is identical on extend and retract. This yields equal bidirectional force and speed, generating 206N at 0.5MPa and 289N at 0.7MPa in either direction. The built-in magnet (-S) enables position feedback via CMSG reed or DMSG/EMSG electronic sensors.
This 40mm stroke is ideal for short, synchronized dual-side motions. The riveted rolling-packed barrel and grease-retaining piston seal ensure durable, leak-free performance. End-of-travel impact is absorbed by fixed rubber bumpers inside both covers. Because a rod extends from the rear, overall length is A + (2 x stroke), requiring rear clearance for the protruding rod and any mounted cam or position flag.
Airtac MBLD Dual Axis Type Mini Cylinder MBLD25X40S Technical Specifications
| Model | Airtac MBLD Dual Axis Type Mini Cylinder MBLD25X40S |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder (double rod) |
| Bore size | Ø25 mm |
| Stroke | 40 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 MBLD25X40S
| MBLD | MBLD aluminum-barrel double-rod mini cylinder. |
|---|---|
| 25 | Bore size in mm. |
| ×40 | 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 MBLD25X40S Is Used
PCB Edge-Guiding Flag
Drives a 40mm stroke guiding flag on a conveyor edge while the rear rod simultaneously pushes a limit switch, ensuring synchronized board alignment with 206N of equal bidirectional force.
Textile Web Splicer
Applies anti-rotation dual-side tension on a textile web splicing jig, using the twin rods to keep the 10mm rod perfectly guided during the 40mm splicing stroke.
Connector Pick-and-Place
Handles small electronic connectors in a pick-and-place station, utilizing the compact 25mm body and built-in magnet for precise 40mm end-of-travel detection.
Is the Airtac MBLD Dual Axis Type Mini Cylinder MBLD25X40S the Right Cylinder?
For 206N of equal bidirectional force at 0.5MPa, this 25mm bore is optimal. If your task needs less force, step down to the 20mm bore providing 132N both ways. If higher thrust is required, step up to the 32mm bore delivering 346N both ways. The fixed rubber bumper suits moderate cycling, but for higher kinetic energy at cycle ends, choose the MBLCD variant with adjustable air cushions.
Mounting is limited to Basic, FA flange, or LB foot styles; no SDB pivot or back-cover CA/U brackets exist for this double-rod body. The default PT (tapered) port threads match the G1/8 port size. Note that the fixed rubber bumper softens end impacts but does not lock the rod; the cylinder drifts without live air pressure, so an external guide or lock is required for true position holding.
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 MBLD25X40S FAQ
The double-rod design provides equal force in both extend and retract directions. At 0.5MPa it delivers 206N both ways, at 0.7MPa it delivers 289N both ways, and the maximum theoretical force is 42kgf at 1.0MPa.
A rod exits both ends, making the annular piston area equal on both sides. This means push and pull forces, as well as speeds, are perfectly matched. The rear rod protrusion allows you to mount a secondary cam, position flag, or drive a second mechanism simultaneously.
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