The AirTAC AirTAC MBL50X250SU Mini Cylinder | 50mm Bore 250mm is a genuine double-acting aluminum-barrel mini round cylinder with a Ø50mm bore and 250mm 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 MBL50X250SU is a double-acting aluminum mini round cylinder engineered for tight machine spaces. At 0.5 MPa, it generates 981 N of push force and 881 N of pull force, making it well-suited for driving heavier slides or actuators over its 250 mm stroke. The riveted rolling-packed barrel crimps the front and rear covers directly to the tube, yielding a lightweight, compact envelope that is not designed to be disassembled like a traditional tie-rod cylinder.
This specific SKU includes a built-in magnet (-S) for use with AirTAC CMSG, DMSG, and EMSG sensor switches to track rod position. It features a U flat-end back cover for rigid mounting and a carbon-steel piston rod with a 20 um hard-chrome plating to resist wear and corrosion. The heterogeneous two-way piston seal retains grease internally, ensuring long operational life without frequent maintenance.
| Model | AirTAC MBL50X250SU Mini Cylinder | 50mm Bore 250mm |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder |
| Bore size | Ø50 mm |
| Stroke | 250 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. |
| ×250 | 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).
Pushes 250 mm to divert heavy cardboard cartons between packaging lines, utilizing the 981 N push force to overcome friction without stalling.
Opens and closes heavy machine tool safety doors, relying on the rigid U flat-end back cover to maintain alignment during rapid 30-800 mm/s actuation.
Halts loaded pallets on a roller conveyor by extending a 250 mm stopper arm, using the DMSG solid-state sensor to confirm the block is deployed.
If 981 N of push force at 0.5 MPa is more than your application requires, step down to the 40 mm bore, which yields 628 N. For heavier loads requiring more thrust, step up to the 63 mm bore, providing 1558 N. Because this is a 250 mm stroke, the 16 mm rod is highly susceptible to side-load bending; always use an external guide rail to support the load and prevent rod-bearing damage.
This model uses a fixed rubber bumper to soften end-of-stroke impacts rather than an adjustable air cushion (which requires the MBLC variant). A plain double-acting cylinder cannot hold a load if air pressure drops; the rod will drift. Use an external pilot-operated check valve if position holding is mandatory. Replacement parts require matching the 50 mm bore, 250 mm stroke, G1/4 port, PT thread, U flat-end cover, and -S 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. The operating speed range is 30-800 mm/s.
No, the base MBL50X250SU uses a fixed rubber bumper to absorb end-of-stroke impacts, not an adjustable cushion screw. If your application involves fast cycling or heavy moving masses requiring tunable deceleration, select the MBLC variant for its adjustable air cushion.
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