The AirTAC AirTAC MBL50X400SCA 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 MBL50X400SCA is a compact double-acting aluminum mini round cylinder engineered for tight machine spaces. It delivers a robust 981 N push and 881 N pull force at 0.5 MPa, extending across a 400 mm stroke. The riveted rolling-packed barrel crimps the covers directly to the tube, ensuring a lightweight footprint that is not designed to be disassembled like a tie-rod body. A heterogeneous two-way piston seal retains grease for long service life, while the Ø16 carbon-steel piston rod features 20 µm hard-chrome plating to resist wear and corrosion.
This specific SKU includes a built-in magnet (-S) for non-contact position sensing using AirTAC CMSG (reed), DMSG, or EMSG (electronic) switches. It is fitted with a CA pivot back cover, allowing the cylinder body to swing on a pin to accommodate arcing or angular loads. The base MBL uses a fixed rubber bumper to soften end-of-stroke impacts rather than an adjustable air cushion (which requires the MBLC variant).
| Model | AirTAC MBL50X400SCA 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).
Drives a pivoting diverter arm on an electronics assembly line, using the CA clevis to swing the 400 mm stroke smoothly and route PCB panels into testing stations with 981 N of push force.
Ejects filled cartons from a continuous flow wrapper, where the DMSG electronic sensor confirms the full 400 mm extension and the compact aluminum body fits within the machine's tight frame.
Actuates a tensioning guide on a textile loom, relying on the CA pivot to accommodate the arcing travel of the fabric feed while providing 881 N of pull force at 0.5 MPa.
At 0.5 MPa, this 50 mm bore generates 981 N of thrust. If you need less force, the 40 mm bore provides 628 N push; if your application demands more power, stepping up to the 63 mm bore yields 1558 N. For applications requiring softer end-of-stroke deceleration at these higher forces, the MBLC variant offers an adjustable air cushion. Because the base MBL relies on a fixed rubber bumper, it cannot be tuned for impact speed. Additionally, this cylinder does not hold its load when air pressure is lost or the valve is centered—the rod will drift or drop. Use an external rod lock or pilot-operated check valve if position holding is required.
With a 400 mm stroke on a Ø16 mini rod, the unsupported length is highly susceptible to side-load bending. To prevent rod-bearing failure, guide the load externally, rely on the CA pivot back cover to absorb angular misalignment, or switch to the MBLD double-rod type for anti-rotation support. The exact replacement match is: 50 mm bore, 400 mm stroke, G1/4 port, PT thread, CA pivot back cover, and -S magnet.
Quick checklist
This double-acting cylinder delivers a push force of 981 N and a pull force of 881 N at 0.5 MPa. At 0.7 MPa, the push force increases to 1374 N, with a theoretical maximum of 200 kgf at 1.0 MPa. The operating speed ranges from 30-800 mm/s.
The base MBL uses a fixed rubber bumper that cannot be adjusted; for adjustable air cushioning, you need the MBLC variant. However, this specific SKU includes a built-in magnet (-S), allowing you to mount CMSG, DMSG, or EMSG sensor switches directly onto the body for end-of-stroke detection.
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