Sealing Material Rock Metal offers a wide selection of sealing materials in silicon carbide, carbon graphite, tungsten carbide, ceramic, rubber and stainless steel, etc. View our variety of sealing types equipped to handle the vast majority of sealing solutions and available for nearly all applications. Tungsten carbide Carbon graphite Silicon carbide Ceramic Stainless steel
Component Mechanical Seal --- Rock Metal Seal have managed to successfully install thousands of seals worldwide. Component mechanical seals are composed of separate rotary and stationary parts. Unlike cartridge seals, component seals are not pre-assembled and require skilled technicians to install them. Incorrect installation of seal faces, O-rings, and seal axial setting on the pump shaft will result in reduced seal life or in some cases, immediate seal failure. Advantages of Component Mechanical Seals Reduced expenses on initial seal purchase Reduced spares costs as the individual components can be stocked vs. the entire seal Superior adaptability to very small pumps Disadvantages of Component Mechanical Seals The major disadvantage for component mechanical seals are their susceptibility to damage. Component mechanical seals usually have exposed parts that are more susceptible to damage during transportation or installation. Further, component seals require precise measurements during installation to prevent seal failure. Properly installing this type of seal requires more operator time and thus a higher cost to install or re-install after a repair.
Rock Metal offers a wide range of standard cartridge seals that are versatile and easy to install, suit a wide range of duties and are commonly used in applications in the chemical, pulp & paper, power, food & beverage, mining, water/wastewater and general industries. Cartridge mechanical seal is a collection of all the parts of the mechanical seal, such as the rotary ring, stationary ring, spring, secondary seal, gland, etc. The rotating and stationary parts of this seal are pre-assembled into a whole before installation. After inspection and pressure test, they are installed in the seal cavity, fixed to the pump shaft with set screws, tighten the seal gland bolts, remove the assembly positioning plate, and the mechanical seal can be in a parallel working state and put into operation. This is not only easy to assemble but also ensures the assembly quality. Advantages of Cartridge Mechanical Seals 1. All parts of the seal are assembled into a whole, with a compact structure. 2. The seal is pre-assembled into a whole, which ensures the working height of the spring, is conducive to the operation of the seal under the designed working conditions, and it is safer. It eliminates measurement errors and improves the reliability of the seal. 3. The seal is easy and quick to install on site, without the need for on-site debugging (such as springs, sealing surfaces, etc.), which reduces the labor intensity of maintenance workers. It reduces installation human errors and reduces the occurrence of failures. 4. Prevent dust from entering or damaging the sealing surface 5. Protect customer shafts/sleeves 6. Since the seal cartridge device has an internal sleeve, a balanced seal can be operated without a customized shaft. 7. Maintenance saves time and effort, and no compression adjustment is required Disadvantages of Cartridge Mechanical Seals The disadvantage of the cartridge mechanical seal is the higher initial cost and the additional required space. To design a ready-to-go cartridge seal much information is necessary upfront.
Sleeve & Bearing & Bushing Rock Metal offers a wide selection of sleeve & bearing & bushing. They are simplest design of bearing, sleeve-shaped. They are usually found in applications that use rotating or sliding parts. They are made from a range of materials: sic, carbon, tc, ceraic, stainless steel, etc
We are glad to propose 500 MT of stain less steel mill scale. Mill scale is formed on the outer surfaces during by the hot rolling lamination of stainless-steel products. At a visual inspection the material is a hard brittle sand and is mainly composed of iron oxides, mostly ferric, and is bluish black in colour, but it also contains considerable alloying elements such as chromium and nickel. The recovery ratio after melting in furnace for the most valuable alloy elements is: - Ni: 3.5 - 4.5% - Cr: 6-8% From the chemical and physical analysis performed on the scrap, and according to the European environmental rules, the material has been classified as a special non dangerous waste, listed in green list. In particular the mill scale can be classified as follows: Waste code: 10 02 10 The material is stored on cemented flooring, and it can be loaded loose in tipper trucks or containers. Chemical analysis of the material is available on request.
Mill scale, is formed on the outer surfaces of plates, sheets or profiles when they are being produced by rolling hot iron or steel billets in rolling or steel mills. It looks like a hard brittle sand and is mainly composed of iron oxides, mostly ferric, and is bluish black in color. Being produced during the reheating, conditioning and hot rolling operation for the production of steel articles, the mill scale initially adheres to the steel surface and protects it from atmospheric corrosion, provided no break occurs in this coating. From the chemical and physical analysis performed on the scrap, and according to the european environmental rules, the material has been classified as a special non dangerous waste, listed in green list In particular the mill scale can be classified as follows: Einecs (european commission no.): 266-007-8 Waste code: 10 02 10 Basel code: b 12 30 Hs code: 2619.00
Supplier: Chemical, chemical raw material, auxiliaries, solvents, paint, coating, rubber, plastic, plasticizer, surfactant, additives, steel pipe, steel tube, stainless steel tube, stainless steel pipe, pipe fitting, flange, fasteners, steel wire, steel accessories
Services: Transportation agent,customs clearance service,
Buyer: Import chemical raw materials, auxiliaries, bulk commodities
High vacuum sealing packaging machine high temperature sterilization food sealing machine is suitable for all kinds of plastic composite film bags or aluminum foil composite film bags. After vacuum packaging, it can effectively keep fresh, guarantee quality, moistureproof, clean and clean all kinds of rice cakes, bean products, meat products, aquatic products, agricultural products, pickles, fast food products, prepared foods, powders, spices, electronics, hardware parts and drugs It can prevent mildew, rust, pollution, oxidation and vacuum sterilization, so as to prolong the shelf life. welcome order ! small type ,big type ,single chamber ,2-chamber ,rolling vacuum sealing packing machine ....!
Keep food long quality time and Food taste by rolling vacuum sealing machine vacuum packing machine ,high efficient,sanitary! welcome order!
