
The AirTAC MBLD Dual Axis Type Mini Cylinder MBLD40X80S is a genuine double-acting double-rod aluminum-barrel mini cylinder with a Ø40mm bore and 80mm 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.
The AirTAC MBLD40X80S is a double-acting, double-rod aluminum mini cylinder featuring a 40mm bore and 80mm stroke. Because a Ø16mm carbon-steel rod with 20µm hard-chrome plating exits both end covers, the effective piston area is identical on extend and retract. This yields exactly 528N of force each way at 0.5MPa (739N at 0.7MPa), giving you perfectly balanced push and pull dynamics without the asymmetry of a single-rod design.
The built-in magnet (-S) allows position detection using AirTAC CMSG reed or DMSG/EMSG electronic switches. End-of-travel impact is absorbed by a fixed rubber bumper rather than an adjustable air cushion. The riveted rolling-packed barrel keeps the body light for tight spaces, but remember the overall length equals A plus twice the stroke—leave rear-rod clearance for the protruding shaft.
| Model | Airtac MBLD Dual Axis Type Mini Cylinder MBLD40X80S |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder (double rod) |
| Bore size | Ø40 mm |
| Stroke | 80 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.
| 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.
| MBLD | MBLD aluminum-barrel double-rod mini cylinder. |
|---|---|
| 40 | Bore size in mm. |
| ×80 | 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).
Drives a dual-sided conveyor belt in a PCB routing machine, using the 528N equal thrust and 80mm stroke to maintain perfectly balanced tracking tension without rotational skew.
Shifts a warp beam actuator on a textile loom, leveraging the twin-rod anti-rotation property to keep the heavy fabric guide aligned during the 80mm retraction cycle.
Mounts a reject paddle on the front rod and a physical position flag on the rear rod to trip a CMSG reed sensor, ensuring 739N of precise push/pull at 0.7MPa for semiconductor tray sorting.
Stepping down, the 32mm bore neighbor provides 346N each way at 0.5MPa, while stepping up to the 50mm bore yields 881N. Choose this 40mm bore if your mechanism requires roughly 53kgf of symmetric thrust. Unlike the single-rod MBL or the adjustable-cushion MBLCD, this base MBLD has no rear-cover mounting option and cannot use an SDB pivot bracket—mounting is limited to Basic, FA flange, or LB foot. The fixed bumper softens end impact but does not lock the rod; the cylinder drifts without live air, so use an external device for position holding. Replacement match: 40mm bore, 80mm stroke, G1/4 port, PT thread, FA/LB mount, with magnet.
Quick checklist
Because the MBLD40X80S is a double-rod cylinder, the push and pull forces are exactly equal. It generates 528N at 0.5MPa and 739N at 0.7MPa in both directions, with a maximum theoretical force of 108kgf at 1.0MPa.
The -S code indicates a built-in magnet for use with AirTAC CMSG (reed) and DMSG/EMSG (electronic) sensor switches to detect rod position. The double-rod design means a shaft protrudes from both ends, allowing you to mount a workpiece on one side and a cam or position flag on the other, while providing superior anti-rotation guidance compared to a single-rod MBL cylinder.
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