The AirTAC AirTAC MBL50X20SU Mini Cylinder | 50mm Bore 20mm Stroke is a genuine double-acting aluminum-barrel mini round cylinder with a Ø50mm bore and 20mm 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 MBL50X20SU is a double-acting aluminum mini round cylinder engineered for compact spaces. It delivers a robust 981 N push force at 0.5 MPa and features a short 20 mm stroke for high-cycle clamping or ejecting tasks. The riveted rolling-packed barrel permanently crimps the front and rear covers to the tube, yielding a lightweight, space-saving body that is not designed to be disassembled like traditional tie-rod cylinders.
This specific SKU includes a U flat-end back cover for rigid, fixed mounting and a built-in magnet (-S) for non-contact position sensing. The magnet is fully compatible with AirTAC CMSG reed switches, as well as DMSG and EMSG solid-state electronic sensors. Inside, a heterogeneous two-way piston seal retains grease for long service life, while the carbon-steel piston rod features 20 μm hard-chrome plating to resist wear and surface corrosion in humid industrial environments.
| Model | AirTAC MBL50X20SU Mini Cylinder | 50mm Bore 20mm Stroke |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder |
| Bore size | Ø50 mm |
| Stroke | 20 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. |
| ×20 | 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).
Uses the 981 N push force to knock finished plastic parts out of injection molds where press height is restricted and a short 20 mm stroke is ideal.
Pivots a guide rail on a packaging line to sort filled beverage bottles, relying on the compact riveted aluminum body to fit between narrow conveyor frames.
Secures printed circuit boards during automated wave soldering, using the -S magnet and a DMSG solid-state sensor to confirm the clamp is engaged before heating.
Select this 50 mm bore when your application requires 981 N of push force at 0.5 MPa. If you need less force, step down to the 40 mm bore which provides 628 N push at 0.5 MPa; if you need significantly more power, the 63 mm bore offers 1558 N push at 0.5 MPa. Because this base MBL uses a fixed rubber bumper rather than an adjustable air cushion, choose the MBLC variant if your process involves heavy moving masses and requires precise end-of-stroke deceleration to prevent impact damage.
Note that this cylinder cannot hold a load or maintain its position if air pressure is lost or the valve is centered; the rod will drift. Use an external rod lock or pilot-operated check valve for fail-safe load holding. The exact replacement match for this SKU is: 50 mm bore, 20 mm stroke, G1/4 port, PT thread form, U flat-end back cover, and a built-in 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.
No, the base MBL50X20SU uses a fixed rubber bumper to soften end-of-stroke impact. It does not feature an adjustable air cushion; if you need adjustable cushioning for heavier loads, select the MBLC variant.
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