Airtac MBLD Dual Axis Type Mini Cylinder MBLD40X350S
The AirTAC MBLD Dual Axis Type Mini Cylinder MBLD40X350S is a genuine double-acting double-rod aluminum-barrel mini cylinder with a Ø40mm bore and 350mm 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
- Stroke350 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 MBLD40X350S
The AirTAC MBLD40X350S is a double-acting, double-rod aluminum mini cylinder engineered for symmetrical motion. Because a Ø16 mm carbon-steel rod exits both end covers, the annulus area is identical on each side. This yields exactly 528 N of force at 0.5 MPa in both extend and retract directions, eliminating the speed and force mismatch found in single-rod units. The built-in magnet (-S) allows CMSG reed or DMSG/EMSG electronic switches to track piston position along the 350 mm travel.
A 350 mm stroke on a 40 mm bore places high bending leverage on the rod ends. Even with twin rods providing better anti-rotation resistance than a single rod, an external guide rail is strongly recommended to prevent side-load damage. The body uses a riveted rolling-packed aluminum barrel with a fixed rubber bumper to absorb end-of-stroke impacts. Note that overall length equals the base body plus twice the stroke, so you must leave physical clearance for the rear rod to protrude freely.
Airtac MBLD Dual Axis Type Mini Cylinder MBLD40X350S Technical Specifications
| Model | Airtac MBLD Dual Axis Type Mini Cylinder MBLD40X350S |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder (double rod) |
| Bore size | Ø40 mm |
| Stroke | 350 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 MBLD40X350S
| MBLD | MBLD aluminum-barrel double-rod mini cylinder. |
|---|---|
| 40 | Bore size in mm. |
| ×350 | 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 MBLD40X350S Is Used
Textile Loom Beam Indexing
Drives a 350 mm indexing stroke on a weaving loom, using the rear rod end to trip a mechanical flag that times the rapier insertion perfectly with the 528 N cycle force.
PCB Conveyor Diverter
Pushes populated PCB panels across a dual-lane conveyor with equal push and pull velocity, preventing sudden acceleration jerks that could dislodge surface-mount components.
Semiconductor Cassette Elevator
Raises a wafer cassette 350 mm between process stations. The twin-rod geometry keeps the delicate payload guided against rotation without needing a external linear bearing.
Is the Airtac MBLD Dual Axis Type Mini Cylinder MBLD40X350S the Right Cylinder?
This 40 mm bore generates 528 N each way at 0.5 MPa. If your payload is lighter, step down to the 32 mm bore (346 N both ways); for heavier loads, step up to the 50 mm bore (881 N both ways). The fixed rubber bumper suits standard cycling, but for high kinetic energy at 350 mm stroke, consider the MBLCD variant which adds adjustable air cushions. Mounting is limited to Basic, FA flange, or LB foot brackets—MBLD does not support SDB pivot or rear back-cover mounts. For exact replacements, match the 40 mm bore, 350 mm stroke, G1/4 port, PT thread, and -S 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 MBLD40X350S FAQ
Because the double-rod design has equal piston area on both sides, extend and retract forces are identical: 528 N at 0.5 MPa, 739 N at 0.7 MPa, and a maximum theoretical 108 kgf at 1.0 MPa.
Unlike a single-rod cylinder where push force exceeds pull force, the MBLD uses a rod on both ends to equalize force and speed in both directions. The protruding rear rod can also mount a cam or position flag, though it requires rear clearance and external side-load guidance at 350 mm.
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Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
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