Double roll crusher is composed of two separate drive roller, squeeze rolling mill shear force and rotation relative to the broken material, also called roll crusher. Double roll crusher, crushing high hardness less ore, rock and refractory materials. Double roll crusher in the refractory broken machinery more than excellent effect. Refractoriness is not lower than 1580 ℃ for a class of inorganic non-metallic materials. Refractory materials are widely used in industry metallurgy, chemical, petroleum, machinery manufacturing, silicates, power, etc., the amount of the largest crusher manufacturers in the metallurgical industry, accounting for 50% to 60% of total output. The physical properties of refractory materials include structural properties, thermal properties, mechanical properties, performance and job performance. Refractory structural properties include porosity, bulk density, water absorption, air permeability, pore size distribution. Refractory thermal properties include thermal conductivity, thermal expansion coefficient, specific heat, thermal capacity, thermal conductive coefficient, thermal emission rate. Mechanical properties of refractories include compressive strength, tensile strength, flexural strength, torsional strength, shear strength, impact strength, abrasion resistance, creep resistance, adhesive strength, elastic modulus. Performance refractories include refractoriness, load softening temperature, reheating linear change, thermal shock resistance, slag resistance, acid resistance, alkali resistance, water resistance, anti-CO erosion resistance, electrical conductivity, oxidation resistance Wait. Double roll crusher is very wearable, grinding rolls on its optional wear plates, wear plates using advanced wear-resistant materials, continuous service life of up to a year or more, severe wear, remove the cover that is can be replaced. Compression test jaw crusher how MPa at a standard jaw crusher widely used in metallurgy, chemicals, building materials, shop, transportation and other industrial sectors, the roller crusher, restraint overload damage jaw crusher, Hammer crusher, jaw crusher often must undergo a detailed maintenance and periodic maintenance, the layout is simple, solid, something reliable, easy maintenance and repair costs as well as production and configuration is less than the force jaw crusher, as well as cement, building materials and other social demand and growing range of production materials, other crusher by the operation process. For breaking strength at 147 ~ 245MPa various ores and rocks of coarse, medium and piecemeal. Thereby jaw crusher play in people a huge role in the economy, as well as the scope of the social demand and production of cement, building materials and other materials growing. Jaw crusher main frame, eccentric shaft, big belt pulley, flywheel, moving jaw, side guard, elbow board, elbow board seat, gap adjustment screw, reset spring, fixed jaw plate and movable jaw plate and other components, Benxi crusher, which also play a role as insurance bracket. Jaw crusher making it a significant advantage in gravel production line work process boost productivity, boost the rapid development of sand production line industry. During the assembly, if the part has assembly errors in the model, then, in the assembly will be prompted to place and cause of the error, which can promptly correct design errors. The establishment of a jaw crusher frame mechanical models, when the assembly first error correction should be based on the actual relationship between the various assembly components analysis, and then determine where the error is, the last of error correction; if necessary, you can enter the part environment, faulty parts to modify or re-modeling. Jaw crusher, North mine Zhongcheng (certified), Benxi crusher from Shenyang North Mine Zhongcheng machinery Limited. Shenyang North Mine Zhongcheng equipment Limited (sybkzc.com) (www.sybkzcjq.com) Liaoning Shenyang, machining leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, the maximum meet customer needs. In North mine public into leadership with the staff warmly welcome all inquiries negotiations to create the North mine public into a better future.