Airtac MBLD Dual Axis Type Mini Cylinder MBLD40X300
The AirTAC MBLD Dual Axis Type Mini Cylinder MBLD40X300 is a genuine double-acting double-rod aluminum-barrel mini cylinder with a Ø40mm bore and 300mm 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
- Stroke300 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 MBLD40X300
The AirTAC MBLD40X300 is a double-acting, double-rod aluminum mini cylinder engineered for symmetrical motion control. Because a Ø16 mm carbon-steel rod exits both end covers, the annular piston area is identical on extend and retract, yielding an equal 528 N of force both ways at 0.5 MPa. The 300 mm stroke suits long-travel transfer and indexing tasks, while the riveted rolling-packed barrel keeps the assembly light and compact for tight machine envelopes.
This configuration uses a fixed rubber bumper to soften end-of-stroke impact rather than an adjustable air cushion (which requires the MBLCD variant). Note that this specific SKU lacks a built-in magnet, meaning it cannot host CMSG, DMSG, or EMSG position sensors without a model change. The overall length equals the base body length plus twice the stroke, so you must leave physical clearance for the protruding rear rod.
Airtac MBLD Dual Axis Type Mini Cylinder MBLD40X300 Technical Specifications
| Model | Airtac MBLD Dual Axis Type Mini Cylinder MBLD40X300 |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder (double rod) |
| Bore size | Ø40 mm |
| Stroke | 300 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 MBLD40X300
| MBLD | MBLD aluminum-barrel double-rod mini cylinder. |
|---|---|
| 40 | 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 MBLD40X300 Is Used
PCB Stacking Elevator
Drives a dual-sided lifting carriage in a printed circuit board handling line, using the 528 N equal both-way force to raise and lower boards smoothly without drift.
Textile Yarn Guide
Shifts a yarn guide carriage 300 mm across a weaving machine; the rear rod end mounts a mechanical flag to trip an external mechanical limit switch.
Bottle Divert Arm
Actuates a 300 mm diverting arm in a packaging conveyor, using the twin-rod geometry to resist torsional twisting during high-speed lane changes.
Is the Airtac MBLD Dual Axis Type Mini Cylinder MBLD40X300 the Right Cylinder?
Stepping down to the 32 mm bore drops the both-way force to 346 N at 0.5 MPa, whereas stepping up to the 63 mm bore increases it to 1457 N. At 300 mm stroke, the slender 16 mm rod is susceptible to bending under side loads, so an external linear guide is mandatory to prevent premature seal wear. Mounting is restricted to Basic, FA flange, or LB foot brackets—there is no back-cover or SDB pivot option for this double-rod format. Additionally, a plain MBLD relies on live air to hold position; the rubber bumper softens impact but does not lock the rod. To replace this unit, match the 40 mm bore, 300 mm stroke, G1/4 port, PT thread, and non-magnet configuration.
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 MBLD40X300 FAQ
Because the double-rod design has equal annular piston areas on both sides, it provides 528 N of force in both extend and retract directions at 0.5 MPa, and 739 N both ways at 0.7 MPa. The maximum theoretical force is 108 kgf at 1.0 MPa.
No, this specific MBLD40X300 SKU lacks the built-in magnet (-S code) and cannot accept CMSG, DMSG, or EMSG electronic or reed sensors. You must select an MBLD40X300S model to enable solid-state or reed switch position detection.
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