Airtac MBLD Dual Axis Type Mini Cylinder MBLD40X300S
The AirTAC MBLD Dual Axis Type Mini Cylinder MBLD40X300S 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 MBLD40X300S
The AirTAC MBLD40X300S is a double-acting, double-rod mini cylinder featuring a 40mm bore and 300mm stroke. A single piston drives a Ø16mm carbon-steel rod out of both end covers, yielding exactly 528N of force at 0.5 MPa in both extend and retract directions. The built-in magnet (-S) allows CMSG reed or DMSG/EMSG electronic sensors to track position. Equipped with a G1/4 port and M12x1.25 rod-end thread, it suits long-travel transfer tasks.
Because the rear rod protrudes continuously, total length equals A plus twice the stroke, demanding rear clearance. The riveted rolling-packed aluminum barrel and 20um hard-chrome plating resist wear, while the fixed rubber bumper absorbs end-of-travel impact. You can mount a cam or position flag on the rear rod end to trigger secondary mechanisms, leveraging the twin-rod design for superior anti-rotation guidance.
Airtac MBLD Dual Axis Type Mini Cylinder MBLD40X300S Technical Specifications
| Model | Airtac MBLD Dual Axis Type Mini Cylinder MBLD40X300S |
|---|---|
| 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 MBLD40X300S
| 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 MBLD40X300S Is Used
PCB Conveyor Width Adjuster
Uses the 528N bidirectional force and 300mm stroke to slide rail guides, matching varying board sizes on an SMT line without needing separate push/pull sizing.
Textile Loom Tentering Frame
The twin rods prevent fabric roll twisting during 300mm travel, while the rear rod end mounts a physical trip flag to actuate mechanical loom stops.
Wafer Cassette Elevator
Drives a 300mm vertical lift for silicon wafer cassettes; the -S magnet feeds DMSG electronic signals to the PLC for precise intermediate positioning.
Is the Airtac MBLD Dual Axis Type Mini Cylinder MBLD40X300S the Right Cylinder?
For 528N at 0.5 MPa, step down to the 32mm bore (346N) for lighter duties or up to the 50mm bore (881N) for heavier loads. Choose the MBLCD variant if your application requires adjustable air cushioning rather than the fixed rubber bumper. Mounting is limited to Basic, FA flange, or LB foot brackets; no SDB pivot or back-cover options exist. To match this SKU exactly, specify: 40mm bore, 300mm stroke, G1/4 port, PT thread, and S magnet.
At 300mm stroke, the Ø16mm rod is prone to bending under lateral loads, so an external guide rail is mandatory. Note that the fixed bumper softens impact but does not lock the rod; the cylinder drifts without live air pressure, so fit an external holding device for vertical loads.
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 MBLD40X300S FAQ
Because the double-rod design has equal annulus area on both sides, extend and retract forces are identical: 528N at 0.5 MPa, 739N at 0.7 MPa, and a maximum theoretical 108kgf (1059N) at 1.0 MPa.
The -S code means a built-in magnet for rod position detection. It works with AirTAC CMSG reed switches and DMSG or EMSG electronic sensors. A plain MBLD40X300 without S cannot fit any sensor.
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