
The AirTAC Airtac MBLCD Aluminum Alloy Mini Cylinder MBLCD63X40 is a genuine double-acting double-rod aluminum-barrel mini cylinder with a Ø63mm bore and 40mm stroke. A rod exits both end covers, so extend and retract force are EQUAL — about 1458 N each way at 0.5 MPa. Adjustable air cushion (both ends).
The AirTAC MBLCD63X40 is a compact double-acting twin-rod mini cylinder featuring a 63mm bore and 40mm stroke. Because a Ø16mm carbon-steel rod exits both end covers, the effective piston area is identical on extend and retract, yielding equal force and speed in both directions at 1457N (0.5MPa) or 2040N (0.7MPa). Tunable screw air cushions at each end absorb kinetic energy to prevent end-cover impact on high-mass moves, a distinct upgrade over the fixed rubber bumpers found on the base MBLD series.
This 40mm stroke suits short, high-force transfer and gripping tasks in confined spaces. The riveted aluminum barrel houses a grease-retaining piston seal, and the rear rod can mount a cam or secondary tool while resisting rotational twist. Note that this specific SKU lacks a built-in magnet (no -S suffix), so it cannot accept CMSG, DMSG, or EMSG position sensors without changing the model. It uses a standard G1/4 port and PT thread form.
| Model | Airtac MBLCD Aluminum Alloy Mini Cylinder MBLCD63X40 |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder (double rod) |
| Bore size | Ø63 mm |
| Stroke | 40 mm |
| Acting type | Double acting, double rod |
| Port size | G1/4 |
| Rod thread | M14×1.5 |
| 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 | Adjustable air cushion (both ends) |
| 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 | 1458 N |
| 0.7 MPa | 2041 N |
| Max (@1.0 MPa) | 297 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.
| MBLCD | MBLCD aluminum-barrel double-rod mini cylinder with adjustable cushion. |
|---|---|
| 63 | Bore size in mm. |
| ×40 | 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: MBLD (double rod, fixed bumper), MBLC (single rod + cushion), MBL (single rod).
Drives a short 40mm ejection plate on an injection molding machine, using the 1457N both-way force to strip parts evenly while the twin rod prevents plate binding.
Folds heavy corrugated carton flaps synchronously from both sides, leveraging the equal extend/retract speed and tunable cushions to halt the 63mm bore without slamming.
Acts as a knockout pin ejector in a mechanical stamping press, where the rear rod end mounts a cam to trigger a proximity switch for timed die ejection.
To size this actuator, step down to the 50mm bore if your application requires less than 881N at 0.5MPa, or step up if you need more than the 1457N provided here—though 63mm is the largest available MBLCD bore. Choose the MBLCD over the single-rod MBLC when you need dual-side guidance, anti-rotation stability, or a rear rod for a flag. Choose it over the bumper-only MBLD when moving heavier loads at speed where the adjustable cushion is necessary to prevent end-cap damage. Mounting is limited to Basic, FA flange, or LB foot brackets; there is no back-cover or SDB pivot option. As a direct replacement, match the 63mm bore, 40mm stroke, G1/4 port, PT thread, and confirm no magnet is required. A plain MBLCD does not hold position without continuous air supply; the cushion only decelerates near end-of-stroke and is not a lock.
Quick checklist
Because the double-rod design has a rod on both sides, extend and retract forces are equal: 1457N at 0.5MPa and 2040N at 0.7MPa, with a theoretical max of 297kgf at 1.0MPa. It features adjustable air cushions at both ends to tune deceleration, which protects the end covers on heavy moves but does not lock the rod.
No. This specific MBLCD63X40 SKU does not have the -S suffix, meaning no internal magnet is fitted. To use AirTAC CMSG reed or DMSG/EMSG electronic solid-state sensors, you must specify the MBLCD63X40S model instead.
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