The AirTAC AirTAC MBL50X25SU Mini Cylinder | 50mm Bore 25mm Stroke is a genuine double-acting aluminum-barrel mini round cylinder with a Ø50mm bore and 25mm 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 MBL50X25SU is a compact double-acting aluminum mini round cylinder engineered to deliver 981 N of push force at 0.5 MPa. Designed with a short 25 mm stroke, it provides rapid inline actuation for heavy small-part tasks within tight machine spaces. The U flat-end back cover provides a rigid, fixed rear mounting surface, making it ideal for robust, straight-line pushes where structural squareness is critical.
This SKU includes a built-in magnet (-S) for direct compatibility with AirTAC CMSG, DMSG, and EMSG sensor switches to confirm rod position. Unlike ISO tie-rod bodies, the MBL uses a riveted rolling-packed aluminum barrel that crimps the covers to the tube for an ultra-light footprint. The bore relies on a heterogeneous two-way piston seal that retains grease for long service life, while the carbon-steel piston rod features 20 um hard-chrome plating to resist wear and corrosion in dynamic environments.
| Model | AirTAC MBL50X25SU Mini Cylinder | 50mm Bore 25mm Stroke |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder |
| Bore size | Ø50 mm |
| Stroke | 25 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. |
| ×25 | 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 981 N of push force to eject dense plastic parts from tight mold cavities where a larger profile cylinder would exceed the machine footprint.
Uses the short 25 mm stroke to rapidly drive a sealing head against heavy corrugated boxes, relying on the U flat-end cover for rigid, square mounting.
Holds rigid PCB panels during high-speed routing, using the -S magnet and a DMSG electronic sensor to confirm the clamp is engaged before the spindle cuts.
Choosing this 50 mm bore depends on your force requirements: stepping down to the 32 mm bore yields 402 N of push force at 0.5 MPa, while stepping up to the 63 mm bore provides 1558 N. The base MBL uses a fixed rubber bumper to soften end-of-stroke impact; if your application requires adjustable air cushioning for heavier moving masses, select the MBLC variant instead. Because the U flat-end back cover is rigid, ensure your mounting face is perfectly square to prevent rod binding.
This double-acting cylinder requires continuous air pressure to both extend and retract; it will not hold its load if air is exhausted or the valve is centered, as the rubber bumper is not a locking mechanism. For exact replacements, match the 50 mm bore, 25 mm stroke, G1/4 port size, PT thread form, U flat-end back cover, and the -S magnet specification.
Quick checklist
At 0.5 MPa, this double-acting cylinder provides 981 N of push force and 881 N of pull force. At 0.7 MPa, push force reaches 1374 N. The maximum theoretical force is 200 kgf at 1.0 MPa.
No, the base MBL50X25SU uses a fixed rubber bumper to absorb end-of-stroke impact, not an adjustable cushion screw. If you need adjustable air cushioning for heavier loads, select the MBLC variant.
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