The AirTAC AirTAC MBL63X400U Mini Cylinder | 63mm Bore 400mm is a genuine double-acting aluminum-barrel mini round cylinder with a Ø63mm bore and 400mm stroke, G1/4 air ports and a fixed rubber bumper. Its compact riveted body suits push, hold and clamp motion in tight machine spaces.
The AirTAC MBL63X400U is a double-acting aluminum mini round cylinder engineered for heavy-duty clamping in spatially constrained machinery. Delivering a robust 1558 N of push force at 0.5 MPa and 1457 N of pull force, this 63 mm bore unit drives a 400 mm stroke via a Ø16 mm carbon-steel rod plated with 20 μm hard chrome for high wear and corrosion resistance. The U flat-end back cover provides a rigid fixed rear mounting surface, ideal for straight-line thrust applications. Because this specific SKU lacks the -S suffix, it has no built-in magnet and cannot support CMSG, DMSG, or EMSG electronic position sensing.
Built with a riveted rolling-packed aluminum barrel, the front and back covers are crimped directly to the tube to yield an exceptionally light yet compact footprint. The internal sealing relies on a heterogeneous two-way piston seal that actively retains grease for extended operational life. End-of-stroke energy is absorbed by a fixed rubber bumper on the base MBL body, which softens impact but is not an adjustable air cushion (for adjustable cushioning, consider the MBLC variant).
| Model | AirTAC MBL63X400U Mini Cylinder | 63mm Bore 400mm |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder |
| Bore size | Ø63 mm |
| Stroke | 400 mm |
| Acting type | Double acting |
| 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 | Rubber bumper (MBLC variant: adjustable air cushion) |
| Max stroke | Up to 500 mm |
Specifications follow the official AirTAC MBL series datasheet. Confirm against the product label before installation. Standard stroke to 500 mm (special order to 800 mm). Thread options: PT / G / NPT.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 1559 N | 1458 N |
| 0.7 MPa | 2182 N | — |
| Max (@1.0 MPa) | 318 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
| MBL | Aluminum-barrel mini round cylinder, double acting. |
|---|---|
| 63 | Bore size in mm. |
| ×400 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Related variants: MBLC (adjustable cushion), MBLD (double rod), MBLJ (adjustable stroke), MSBL/MTBL (single acting).
Provides the 1558 N of 0.5 MPa push force needed to eject dense plastic parts from confined injection molding tooling bases.
Drives a 400 mm stroke to push heavy pallets laterally across transfer lines where a larger profile cylinder would exceed the frame envelope.
Applies sustained downward pressure for seating electronic connectors onto PCB assemblies within densely packaged testing stations.
This 63 mm bore provides the maximum standard thrust in the MBL family, pushing 1558 N at 0.5 MPa. If your assembly requires less force, stepping down to the 50 mm bore yields 981 N of push force. As 63 mm is the largest available bore, moving up in force requires transitioning to an ISO 15552 profile cylinder. The 400 mm stroke is well within the 500 mm standard limit, but the long unsupported travel of the Ø16 mm rod creates a high risk of bending under side-load; utilizing an external guide, a CA pivot back cover, or the MBLD double-rod anti-rotation type is strongly recommended.
Keep in mind that the fixed rubber bumper only softens end-of-stroke impact and does not hold the load. If air pressure is lost or the valve is centered, the rod will drift or drop; maintaining a load without live pressure requires an external rod lock or a pilot-operated check valve. Direct replacement specifications: 63 mm bore, 400 mm stroke, G1/4 port, PT thread, U flat-end back cover, no magnet, and standard double-acting function.
Quick checklist
At 0.5 MPa, this 63 mm bore cylinder pushes with 1558 N and pulls with 1457 N. At 0.7 MPa, the push force increases to 2181 N, with a theoretical maximum of 318 kgf at 1.0 MPa. The operational speed range is 30-800 mm/s.
No, the base MBL63X400U uses a fixed rubber bumper to soften end-of-stroke impacts, not an adjustable air cushion. If your application requires adjustable cushioning for heavier moving loads, the MBLC variant is the correct choice.
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