Airtac MBLD Dual Axis Type Mini Cylinder MBLD40X225
The AirTAC MBLD Dual Axis Type Mini Cylinder MBLD40X225 is a genuine double-acting double-rod aluminum-barrel mini cylinder with a Ø40mm bore and 225mm stroke. A rod exits both end covers, so extend and retract force are EQUAL — about 528 N each way at 0.5 MPa. Fixed rubber bumper.
- BoreØ40 mm
- Stroke225 mm
- Port sizeG1/4
- Acting typeDouble acting, double rod
- Rod threadM12×1.25
- 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 MBLD40X225
The AirTAC MBLD40X225 is a double-acting, double-rod aluminum mini cylinder featuring a 40 mm bore and 225 mm stroke. A single piston drives a carbon-steel rod out of both end covers, yielding an identical annulus area on each side. This means push and pull forces are perfectly equal, generating 528 N in both directions at 0.5 MPa. The 225 mm stroke is ideal for medium-travel positioning tasks. It uses a G1/4 port and a Ø16 mm rod with an M12x1.25 thread.
Because a rod protrudes from the rear, the overall length equals the base dimension plus twice the stroke, requiring rear clearance in your layout. The riveted rolling-packed aluminum barrel and grease-retaining piston seal ensure stable operation, while the fixed rubber bumper softens end-of-travel impacts. This base SKU lacks a built-in magnet, so it cannot support CMSG, DMSG, or EMSG position sensors. For applications needing adjustable air cushioning instead of a fixed bumper, the MBLCD variant is the correct choice.
Airtac MBLD Dual Axis Type Mini Cylinder MBLD40X225 Technical Specifications
| Model | Airtac MBLD Dual Axis Type Mini Cylinder MBLD40X225 |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder (double rod) |
| Bore size | Ø40 mm |
| Stroke | 225 mm |
| Acting type | Double acting, double rod |
| Port size | G1/4 |
| Rod thread | M12×1.25 |
| 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 500 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 (Ø40mm, equal both ways)
| Pressure | Extend & retract force |
|---|---|
| 0.5 MPa | 528 N |
| 0.7 MPa | 739 N |
| Max (@1.0 MPa) | 108 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 MBLD40X225
| MBLD | MBLD aluminum-barrel double-rod mini cylinder. |
|---|---|
| 40 | Bore size in mm. |
| ×225 | 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 MBLD40X225 Is Used
PCB Edge Conveyor Transfer
Drives a 225 mm pop-up transfer arm in a PCB conveyor line. The twin rods resist twist during the 528 N lift, keeping the board carrier perfectly horizontal without needing a separate guide.
Textile Yarn Guide Traversal
Shifts a yarn guide carriage across a 225 mm winding drum. The equal push/pull force ensures consistent 739 N tension at 0.7 MPa on both in and out strokes, preventing yarn slack.
Semiconductor Wafer Cassette Ejector
Pushes a FOUP wafer cassette out of a load port. The rear protruding rod simultaneously trips a mechanical limit flag, providing a hard mechanical backup signal without requiring an electronic sensor.
Is the Airtac MBLD Dual Axis Type Mini Cylinder MBLD40X225 the Right Cylinder?
When sizing this 40 mm bore, consider stepping down to the 32 mm version if your load requires less than 346 N at 0.5 MPa, or stepping up to the 50 mm bore if you need 881 N to overcome higher friction. This MBLD40X225 model uses a PT (tapered) port thread and has no magnet (no -S code), meaning no position sensing is possible without a physical external flag. Mounting is limited to Basic, FA flange, or LB foot styles; there is no SDB pivot bracket or back-cover option available for the double-rod body. At 225 mm stroke, the 16 mm rod is highly susceptible to side-load bending, so an external guide rail is mandatory to prevent premature seal failure. Remember that a plain MBLD does not hold position without live air—the rod drifts without an external locking device.
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 MBLD40X225 FAQ
Because a rod exits both ends, the effective piston area is identical on both sides. The force is equal in both directions: 528 N at 0.5 MPa, 739 N at 0.7 MPa, and a theoretical maximum of 108 kgf at 1.0 MPa.
Unlike a single-rod cylinder which has a larger push force than pull force, the MBLD40X225 has a rod on both sides of the piston, making extend and retract forces exactly equal. This rear rod can also mount a cam or position flag, but note this specific SKU has no internal magnet, so electronic sensors cannot be used.
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