The Miselli Magnetic Metal Plug Series TMA is an essential component designed for draining and purifying tanks and oil chambers. Made of aluminum with a hexagonal head, it features an integrated magnetic cylinder that effectively attracts and retains ferrous particles immersed in the fluid. This process ensures ideal lubrication, improving the efficiency of the hydraulic circuit. The system includes a flat sealing gasket made of asbestos-free fiber and can be configured with ferrite, Alnico, or Neodymium magnets depending on the selected model.
The Miselli Magnetic Metal Plug Series TMA represents a reliable and technical solution for the hydraulic sector, specifically designed for fluid management and contamination control within hydraulic circuits. This component performs a dual essential function for systems: it acts as a threaded drain plug and simultaneously operates as a magnetic filter for oil purification.
From a structural standpoint, the plug features a hexagonal head design that facilitates installation and maintenance. The main body is entirely made of aluminum, ensuring an excellent balance between mechanical strength and weight. To ensure maximum system sealing, each plug is supplied as standard with a flat washer gasket made of asbestos-free fiber. For applications requiring different specifications, the gasket can be supplied in aluminum upon request. The core of the filtering system is a magnetic cylinder interference-fitted into its dedicated housing, positioned beneath the threaded section. In the standard configuration, this element is made of anisotropic ferrite, a material that ensures long-lasting magnetic performance.
The ideal installation of this component is at the bottom of the oil chamber or at the base of the tank. This position allows the Miselli Magnetic Metal Plug Series TMA to operate at maximum efficiency throughout the entire system working cycle. The magnet attracts and retains ferrous dust and microscopic metal particles suspended in the fluid. Removing these impurities from the circuit is crucial, as it ensures ideal lubrication, preserves the integrity of transmission components, and extends the operational life of the system.
The series is available in multiple variants to suit all standard fitting configurations. Depending on the selected size, the tightening key (Ch) ranges from 19 mm to 50 mm, with threads (F) spanning from G 1/4″ up to G 1 1/4″. Geometrical specifications are precise: the hex head height (h1) ranges from 7 mm for models TMA/14 and TMA/38 up to 10 mm for model TMA/114. The magnetic cylinder projection (h3) starts from 6 mm and reaches up to 15 mm, while the magnet diameter (d) ranges from 5 mm to 13 mm.
To meet specific magnetic capacity requirements, the range includes two special versions:
The model TMA/14, specifically equipped with an Alnico magnet.
The model TMA/114, supplied with a high-performance Neodymium magnet.
Technical summary table of the main characteristics of the Miselli Magnetic Metal Plug Series TMA
| Feature | Value |
|---|---|
| Product Type | Threaded hex head drain plug |
| Body Material | Aluminum |
| Standard Gasket Material | Flat washer in asbestos-free fiber |
| Gasket Material (on request) | Aluminum |
| Standard Magnet | Anisotropic ferrite cylinder |
| TMA/14 Magnet | Alnico |
| TMA/114 Magnet | Neodymium |
| Main Application | Bottom of oil chamber or tank for retaining ferrous particles |
| Thread Range (F) | From G 1/4″ to G 1 1/4″ |
| Wrench Size Range (Ch) | From 19 mm to 50 mm |