The AirTAC AirTAC MBL50X400SU 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 MBL50X400SU is a double-acting aluminum mini round cylinder built for compact machine layouts. It delivers a robust 981 N push and 881 N pull at 0.5 MPa, making this 50 mm bore variant ideal for moving heavier jigs over its 400 mm stroke. The riveted rolling-packed barrel keeps the overall footprint small and lightweight, though the crimped construction means it is not designed to be disassembled like a tie-rod cylinder. This specific SKU includes the U flat-end back cover for rigid fixed mounting and a built-in magnet (-S) for position sensing.
Unlike larger profile cylinders, the MBL uses a fixed rubber bumper to soften end-of-stroke impacts rather than an adjustable air cushion. The 20 um hard-chrome plating on the carbon steel rod provides high wear and corrosion resistance, while the heterogeneous two-way piston seal retains grease for a long service life. The integrated magnet allows you to track rod position directly using AirTAC CMSG, DMSG, or EMSG sensor switches.
| Model | AirTAC MBL50X400SU 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).
Indexes multi-station tool turrets over 400 mm, utilizing the 981 N push force to positively lock heavy cutting heads in place during high-speed machining.
Pushes heavy loaded pallets off a main conveyor line into a reject chute, where the 400 mm stroke provides the full reach needed to clear the belt path.
Folds large corrugated carton flaps during case erecting, using the DMSG electronic sensor to trigger the sealer head precisely when the 400 mm extension completes.
If you need less force, step down to the 40 mm bore (628 N push at 0.5 MPa); if your application requires more power, the 63 mm bore provides 1558 N push. Because this is a 400 mm stroke, the 16 mm rod is highly susceptible to side-load bending—use an external guide, a CA pivot back cover, or the MBLD double-rod anti-rotation type to prevent premature wear. Remember that the fixed rubber bumper only absorbs impact shock; it does not lock the rod. If the load must be held without live air pressure, install an external rod lock or pilot-operated check valve. Replacement match: 50 mm bore, 400 mm stroke, G1/4 port, PT thread, U back cover, LB/FA/SDB mounting, -S magnet.
Quick checklist
At 0.5 MPa, the 50 mm bore provides 981 N push and 881 N pull. At 0.7 MPa, the push force is 1374 N. The maximum theoretical force is 200 kgf at 1.0 MPa.
No, the base MBL uses a fixed rubber bumper to absorb impact, not an adjustable cushion screw. If your heavy 400 mm stroke requires adjustable end-cushioning for faster cycle speeds, upgrade to the MBLC variant.
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