
The AirTAC MBLD Dual Axis Type Mini Cylinder MBLD40X500 is a genuine double-acting double-rod aluminum-barrel mini cylinder with a Ø40mm bore and 500mm 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 MBLD40X500 is a double-acting, double-rod aluminum mini cylinder featuring a 40mm bore and a 500mm stroke. Because a carbon-steel rod with 20µm hard-chrome plating exits both end covers, the effective piston area is identical on extend and retract. This yields equal force and speed in both directions, generating 528N at 0.5MPa and 739N at 0.7MPa. The 500mm stroke is a made-to-order non-standard length for this bore, extending to the absolute maximum travel limit before external guidance becomes critical.
This configuration uses a G1/4 port and an M12x1.25 rod-end thread. It features a riveted rolling-packed aluminum barrel and a fixed rubber bumper to soften end-of-stroke impact. This specific SKU is built without a magnet, so it cannot support CMSG, DMSG, or EMSG position sensors. The overall length equals the base body length plus twice the stroke, meaning the rear rod protrudes significantly and requires dedicated machine clearance.
| Model | Airtac MBLD Dual Axis Type Mini Cylinder MBLD40X500 |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder (double rod) |
| Bore size | Ø40 mm |
| Stroke | 500 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. |
| ×500 | 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 splicing jaw on a film converting line, using the 500mm stroke to fully open the mechanism while the rear rod actuates a tensioning flag at 528N.
Indexes a pallet transfer carriage between two machining stations, leveraging the equal extend and retract speed to maintain a consistent 30-800mm/s cycle rhythm.
Applies 739N of constant opposing force at 0.7MPa on a weaving loom, using the twin rods to keep the warp beam guided against rotation without a separate guide rod.
When sizing this cylinder, consider stepping down to the 32mm bore (generating 346N at 0.5MPa) for lighter loads, or stepping up to the 50mm bore (providing 881N at 0.5MPa) for heavier thrust requirements. At 500mm of travel on a 16mm rod, side-load forces are highly amplified; an external linear guide is strictly required to prevent rod bending and premature seal wear.
Unlike the single-rod MBL which offers higher forward thrust, this MBLD provides balanced dual-side actuation. If your application needs adjustable pneumatic cushioning rather than the fixed rubber bumper found here, select the MBLCD variant. Mounting is limited to Basic, FA flange, or LB foot brackets; there is no SDB pivot or back-cover option. This SKU uses PT tapered thread and lacks the -S magnet code, meaning no sensor can be fitted. Replacement requires matching the 40mm bore, 500mm stroke, G1/4 port, PT thread, and double-rod layout.
Quick checklist
Force is equal in both directions because the double-rod design creates identical annulus areas. It provides 528N at 0.5MPa and 739N at 0.7MPa. The maximum theoretical force is 108kgf (approx 1059N) at 1.0MPa.
No. This specific SKU lacks the -S code, meaning no internal magnet is fitted and it cannot trigger CMSG reed or DMSG/EMSG electronic sensors. You must use external limit switches for position detection.
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