Airtac MBLD Dual Axis Type Mini Cylinder MBLD40X400
The AirTAC MBLD Dual Axis Type Mini Cylinder MBLD40X400 is a genuine double-acting double-rod aluminum-barrel mini cylinder with a Ø40mm bore and 400mm 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
- Stroke400 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 MBLD40X400
The AirTAC MBLD40X400 is a double-acting, double-rod aluminum mini cylinder engineered for symmetrical actuation. Because a Ø16 mm carbon-steel rod exits both end covers, the annulus area is identical on each side, yielding exactly 528 N of force at 0.5 MPa on both extend and retract. This 400 mm stroke suits long-travel transfer and indexing tasks in tight machine frames.
The riveted rolling-packed barrel houses a heterogeneous two-way grease-retaining piston seal, and end-of-stroke impact is absorbed by a fixed rubber bumper. Note that this specific SKU lacks a built-in magnet, meaning it cannot support CMSG, DMSG, or EMSG position sensors without physical modification. Overall length equals the base body dimension plus twice the stroke, so you must leave rear-rod clearance for the protruding shaft.
Airtac MBLD Dual Axis Type Mini Cylinder MBLD40X400 Technical Specifications
| Model | Airtac MBLD Dual Axis Type Mini Cylinder MBLD40X400 |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder (double rod) |
| Bore size | Ø40 mm |
| Stroke | 400 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 MBLD40X400
| MBLD | MBLD aluminum-barrel double-rod mini cylinder. |
|---|---|
| 40 | Bore size in mm. |
| ×400 | 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 MBLD40X400 Is Used
PCB Conveyor Gate
Lifts and lowers a 400 mm conveyor gate section for PCB routing, using the equal both-way 528 N force to reliably raise and lower the guide without speed variation.
Textile Yarn Guide
Drives a dual-sided yarn traversing carriage where the rear rod end mounts a mechanical flag to trigger an external pneumatic limit valve at each stroke extreme.
Packaging Fold Mechanism
Actuates a 400 mm carton folding arm, leveraging the twin-rod anti-rotation resistance to keep the folding blade perfectly aligned during rapid extend and retract cycles.
Is the Airtac MBLD Dual Axis Type Mini Cylinder MBLD40X400 the Right Cylinder?
Step down to the 32 mm bore if your application only requires 346 N at 0.5 MPa, or step up to the 50 mm bore if you need 881 N to overcome higher friction. This 40 mm bore uses a G1/4 port and an M12x1.25 rod-end thread. Mounting is limited to Basic, FA flange, or LB foot brackets; MBLD does not offer a back-cover or SDB pivot option.
At 400 mm of travel, the Ø16 mm rod is susceptible to side-load bending despite the dual-rod guidance, so an external linear guide is strongly recommended to prevent premature seal wear. The fixed rubber bumper softens end impact but does not lock the rod; a plain MBLD drifts without live air, so fit an external locking device if you need true position holding. For high-cycle applications requiring adjustable air cushions, consider the MBLCD variant instead.
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 MBLD40X400 FAQ
Because the MBLD40X400 is a double-rod cylinder, the effective piston area is identical on both sides, meaning force is exactly equal in both directions. The output is 528 N at 0.5 MPa, 739 N at 0.7 MPa, and the maximum theoretical force is 108 kgf at 1.0 MPa.
This specific MBLD40X400 SKU lacks the built-in magnet (no -S suffix), so it cannot accept AirTAC CMSG, DMSG, or EMSG sensor switches. Unlike a single-rod MBL cylinder, the double-rod MBLD provides equal extend/retract force and speed, while the protruding rear rod can be used to mount a cam or secondary mechanism.
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