The AirTAC AirTAC MBL50X400U Mini Cylinder | 50mm Bore 400mm is a genuine double-acting aluminum-barrel mini round cylinder with a Ø50mm 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 MBL50X400U is a compact double-acting aluminum mini round cylinder engineered for tight machine spaces. Operating at 0.5 MPa, it generates 981 N of push force and 881 N of pull force, placing it in the heavy-duty class for small-bore pneumatics. The 400 mm stroke suits extended linear traverses in packaging or assembly equipment. A genuine AirTAC component, this SKU features a U flat-end back cover for rigid, fixed-foot rear mounting.
Inside the riveted rolling-packed aluminum barrel, a heterogeneous two-way piston seal retains grease for long service life, while the Ø16 mm carbon-steel piston rod features 20 µm hard-chrome plating to resist wear and corrosion. End-of-stroke impact is absorbed by a fixed rubber bumper, not an adjustable cushion. Note that this specific SKU lacks the -S magnet suffix, so it cannot accept a CMSG, DMSG, or EMSG position sensor.
| Model | AirTAC MBL50X400U Mini Cylinder | 50mm Bore 400mm |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder |
| Bore size | Ø50 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 | 982 N | 881 N |
| 0.7 MPa | 1374 N | — |
| Max (@1.0 MPa) | 200 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. |
|---|---|
| 50 | 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 981 N push force needed to index loaded pallet trays off a 400 mm conveyor lane in packaging lines.
Extends 400 mm to shuttle bare PCBs between inline SMT machines, utilizing the rigid U flat-end mount for fixed alignment.
Drives a 400 mm sweep arm to plow minor carton flaps during case erecting, benefiting from the 0.15-1.0 MPa operating range.
If 981 N at 0.5 MPa is excessive for your payload, step down to the 40 mm bore, which provides 628 N of push force. Conversely, heavier loads require the 63 mm bore, yielding 1558 N. For applications needing end-stroke speed damping, select the MBLC variant with its adjustable air cushion. Because the MBL50X400U has a 400 mm stroke, the unsupported Ø16 mm rod is highly susceptible to bending under side loads; you must use an external guide rail, a CA pivot back cover, or the MBLD double-rod anti-rotation type. This non-locking cylinder will drift if air pressure is lost; add an external rod lock or pilot-operated check valve to hold suspended loads safely. Replacement match: 50mm bore, 400mm stroke, G1/4 port, PT thread, U flat-end back cover, no magnet.
Quick checklist
At 0.5 MPa, the push force is 981 N and the pull force is 881 N. At 0.7 MPa, the push force reaches 1374 N. The maximum theoretical force is 200 kgf at 1.0 MPa, with a proof pressure of 1.5 MPa.
No, the base MBL50X400U uses a fixed rubber bumper to soften end-stop impact, not an adjustable air cushion. If your application requires adjustable end-stroke damping for heavier moving masses, choose the MBLC variant.
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