The AirTAC AirTAC MBL50X25U 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 MBL50X25U is a double-acting aluminum mini round cylinder engineered for compact installations requiring substantial force. It delivers a 981 N push and 881 N pull at 0.5 MPa, making this 25 mm stroke variant ideal for short, high-impact moves where a larger profile cylinder will not fit. The U suffix indicates a rigid flat-end rear cover for direct fixed mounting. This genuine AirTAC component uses a riveted rolling-packed barrel that crimps the front and back covers directly to the tube, yielding a lightweight body that is not designed to be disassembled like a tie-rod cylinder.
Inside, 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. Because this SKU lacks the -S suffix for a built-in magnet, it cannot accept a CMSG, DMSG, or EMSG position sensor. End-of-stroke impact is absorbed by a fixed rubber bumper rather than an adjustable air cushion.
| Model | AirTAC MBL50X25U 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 the 981 N push force needed to eject dense plastic parts from a tight mold bay where standard ISO cylinders are too bulky.
Uses the short 25 mm stroke to rapidly fold heavy cardboard flaps on packaging lines, leveraging the rigid U flat-end mount for stability.
Acts as a compact stopper arm on a diverter conveyor, applying 881 N pull to retract the rod clear of passing pallets.
Choose this 50 mm bore when a 40 mm bore falls short of your thrust needs—the 40 mm provides 628 N push at 0.5 MPa, whereas this MBL50X25U provides 981 N. If you require even more force, the 63 mm bore steps up to 1558 N push at 0.5 MPa. For applications needing end-of-stroke deceleration instead of a fixed rubber bumper, step up to the MBLC variant which features an adjustable air cushion.
This cylinder does not hold its load if air pressure is lost or the valve is centered; the rod will drift or drop. Use an external pilot-operated check valve or rod lock if the load must be held without live pressure. Replacement matching requires a 50 mm bore, 25 mm stroke, G1/4 port, PT thread, U flat-end back cover, and no magnet.
Quick checklist
At 0.5 MPa it provides 981 N push and 881 N pull, increasing to 1374 N push at 0.7 MPa. The theoretical maximum force is 200 kgf at 1.0 MPa. It operates at a speed of 30-800 mm/s.
No. The base MBL50X25U uses a fixed rubber bumper to soften end-of-stroke impact and cannot be adjusted. If you need adjustable air cushioning for heavier loads, select the MBLC variant.
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