Minerals & Metals

Steel ERW pipe is a type of Resistance pipe that stands apart from welded pipe and DC welded pipe in two different ways, as listed below. Based on the welding frequency, the IF welding is for low frequency, and the ultra-IF welding is for high frequency. In the case of a thin-walled pipe, there is a high-frequency weld is used, typically in the case of contact welding and induction welding. When the usage is for a small-diameter pipe, they make use of DC welding. There is a high-frequency welding process used to manufacture comprehensive pipes and of ERW pipes. For oil and gas storage, the best recommended type is ERW pipes, owing to their quality, ease of transport, and cost. Pipe End: square ends (straight cut, saw cut, and torch cut). or beveled for welding, beveled, Surface: Lightly oiled, Hot dip galvanized, Electro galvanized, Black, Anti- rust oil, Protective Coatings (Coal Tar Epoxy, Fusion Bond Epoxy, 3-layer PE) Packing: Plastic plugs in both ends, Hexagonal bundles of max. 2,000kg with several steel strips, two tags on each bundle, wrapped in waterproof paper, PVC sleeve, and sackcloth with several steel strips, Plastic caps. Test: Chemical Component Analysis, Mechanical Properties (Ultimate tensile strength, Yield strength, Elongation), Technical Properties (Flattening Test, Bending Test, Hardness Test, Impact Test), Exterior Size Inspection, Hydrostatic Test, NDT TEST ( ET TEST, RT TEST, UT TEST) API 5L steel ERW pipe is for oil and gas industry pipelines, developed for different working environments. The steel line pipe material is generally carbon steel and complies with API SPEC 5L specifications. Applied for the petroleum and natural gas industries, oil industries requirements for transportation and are expected to work in extreme situations, low and high temperatures, corrosion resistance for corrosive environments, and sour services in H2S conditions. Applications of the API 5L ERW steel pipe For Petroleum and natural gas industries, steel pipe for pipeline transportation systems. JS supplied ERW Steel pipe complied to the international standard API 5L, which specified requirements for the manufacture of two product specifications levels (PSL1 and PSL2) of welded line pipe for use in pipeline transportation systems in the oil and gas industries. Why choose us as your carbon steel ERW pipe/tube manufacturer？ When choosing a carbon steel pipe/tube manufacturer, you need to consider many factors, including product quality, price, delivery time, service, etc. The following are our advantages as a carbon steel pipe/tube manufacturer, which can be used as the basis for you to choose us:

Minimum Order: 10 long tons

The 3PE Coated steel pipe has 3-layer coatings: 1. Epoxy primer coating.The first layer with epoxy powder (FBE> 100um). Directly coated at the pipe surface. Ensure the overall coating has good adhesion at higher temperatures. 2 . Copolymer adhesive. Main component for this layer is a polyolefin. The thickness of the adhesive ranges from 170um to 250um.To make sure the top anti- corrosion coating is adhesive at the primer coating and also on the pipe surface. 3 . Anti-corrosion Coating (PE layer). The top layer is extruded polyethylene; the thickness of this layer is from 2.5 mm to 3.7 mm. It is polyethylene, which has advantages in anti-water, electrical resistance, and anti-mechanical damage. It is a very important layer. Coating standard: ANSI/AWWA C104/A21.4 American National Standard for Cement ISO 21809 Petroleum and natural gas industries DIN 30670 Polyethylen coatings of steel pipes and fittings 3PE Anti-corrosion Seamless Coated Steel pipe Application? Due to the characteristics and advantages of the 3PE coated pipe, it is widely used in many kinds of applications such as oil & gas, water transmission, heat transmission, mining, fire-fighting, thermal power station, electric power, communication facilities, highway, chemical pharmaceutical, printing and dyeing, and agricultural applications. And with its further development, the 3PE-coated pipe will play a more and more important role in global development. 3PE Coating Steel Pipes are an excellent solution for customers looking for an anti-corrosion pipeline that can withstand harsh environments. The three-layer polyethylene coating provides excellent protection against corrosion, making our steel pipes durable and reliable. This technology has been proven to extend the lifespan of steel pipes, making it a cost-effective solution in the long run. Additionally, the 3PE coating provides superior insulation and reduces energy loss, making it an ideal choice for transporting fluids in extreme temperatures. Our steel pipes are compatible with a wide range of fluids, making them versatile and convenient for various applications. Trust our experienced team to provide you with the reliable, high-quality steel pipes you need. We provide high-quality steel pipes to customers all over the world Get your price list within 2 hours, now! You can send an email to info@jssteelpipes.com directly. We will quote you within 2 hours after receiving your inquiries.

Minimum Order: 10 long tons

In the industrial machinery sector, efficient, safe, and eco-friendly equipment remains an essential requirement. YZH's WHB810 breaker boom, with its outstanding performance and intelligent design, is emerging as a reliable asset for mining, metallurgy, and related industries. In modern industrial production, particularly in mining, metallurgical smelting, and aggregate processing, secondary crushing and efficient handling of large-sized materials remain critical processes. YZH specializes in fixed crushing equipment, renowned for its high reliability and adaptability. As one of its advanced offerings, the WHB810 breaker boom integrates electro- hydraulic technology, intelligent control systems, and modular design principles to enhance production efficiency, reduce energy consumption, and ensure operational safety. Main parameters of WHB810 breaker boom: Model No. WHB810 Boom weight(without hammer) kg 3420 Max.Horizontal Working radius mm 10700 Max.vertical working radius mm 8150 Min.vertical working radius mm 2620 Max.Height mm 6230 The Scope of Work Diagram of WHB810 breaker boom: The Features of WHB810breaker boom: The WHA810 fixed mechanical arm integrates multiple advanced technologies, with its design focused on intelligent operation, high-efficiency output, and exceptional adaptability. This equipment utilizes an electro-hydraulic drive system, delivering powerful yet smooth operation. Its working arm offers a horizontal reach ranging from 4880 mm to 20400 mm, with a swing angle of 170° to 360°, providing an extensive working range. Flexible control options include both cab operation and remote control, with a range extending up to 10-20 kilometers. This remote capability, combined with a video monitoring system, significantly enhances operational safety and convenience. The robotic arm features a modular design compatible with various front-end tools, including hydraulic breakers, hydraulic lotus claws, hydraulic shears, and grapples, enabling functions such as crushing, shredding, scooping, grabbing, digging, hooking, lifting, and scraping. Core components utilize internationally renowned brands and incorporate a high- performance shock absorption system. This effectively reduces impact loads on the entire machine and its foundation structure, ensuring long-term stable operation under harsh conditions. The Benefits of the WHB810 Breaker Boom: The WHB810 breaker boom offers advantages in energy efficiency, environmental friendliness, high production efficiency, low maintenance costs, and safety reliability. Compared to traditional diesel equipment, its energy consumption costs can be reduced by over 50%, reaching up to 60% in certain scenarios. This is primarily due to its motor-driven design, which offers high energy utilization and zero exhaust emissions, making it more environmentally friendly. Equipment failure rates are reduced by over 80% compared to traditional equipment, thanks to its optimized system design and reliable component selection. Maintenance is simplified, significantly reducing downtime and improving equipment utilization. Operators can perform tasks via remote control, staying clear of hazardous work zones and significantly enhancing workplace safety. The equipment also incorporates multiple safety protection systems to ensure both equipment and personnel safety. The equipment has low requirements for working and operating environments. It can function normally even in the harsh conditions of primary ore crushing— where ventilation is poor and dust levels are high. Optional low-temperature automatic heating and high-temperature automatic cooling systems are available to adapt to various extreme environments. The Application of WHB810 Breaker Boom: The WHA810 Breaker Boom finds extensive application across multiple industrial sectors, where its versatility and high adaptability make it the preferred equipment for numerous enterprises. Primary applications include: - Clearing material blockages at feed openings and screen separators in crushers at open-pit and underground mines; - Secondary crushing operations in mines and quarries; - Shell removal, brick dismantling, ladle handling, and coarse crushing of large materials at smelting plants for mobile ladles and metallurgical furnaces. It is also suitable for sand and gravel aggregate processing, cement plants, power stations, ports, and terminals. YZH's engineering manipulators (including the WHB series) have been successfully deployed in numerous domestic projects, earning high recognition from users. Its extensive application scenarios and proven success cases demonstrate that this equipment delivers sustained improvements in production efficiency and economic returns for enterprises.

Australia temporary fence is designed to provide secure and flexible boundaries for various applications. Our temporary fencing is a self-supporting structure that does not require additional support. The wire mesh fences are interlocked and secured with specific clamps, ensuring a high degree of portability and flexibility, making it suitable for use in a wide range of scenarios.   Australia temporary fence features These fence panels are supported by a counterweight base and can be equipped with a variety of accessories such as gates, handrails, bases and support poles according to different application requirements. • Quick Installation: Modular components allow for rapid setup, saving time and labor. • No Ground Disturbance: There is no need to dig holes or lay foundations, which means no disruption to the ground. • Durable Construction: The galvanized temporary fencing panels are built to last, withstanding harsh weather conditions and heavy use. • Anti-UV Base: The anti-UV base improves the life expectancy of the temp fence australia, ensuring long-term durability. • Versatile Accessories: A variety of fence kits and accessories are available, including gates, handrails, bases, and support poles, to meet different application requirements. https://www.wiremesh8.com/

Stainless steel filter mesh is a filter element made of stainless steel, suitable for filtering impurities in liquids or gases. Mainly selected stainless steel materials such as 304, 304L, 316 and 316L, these materials show good acid resistance, alkali resistance, high temperature resistance and corrosion resistance. This type of filter mesh is commonly used in screening and filtering operations in acid and alkali environments, as well as the separation of gases, liquids and other media. Commonly used materials for making stainless steel mesh include stainless steel wire, nickel wire and copper wire, etc., and the weaving methods include plain weave, twill, mat type, herringbone and other types. Its specifications range from 5 mesh to 630 mesh, with stable filtering performance and delicate filtering effect, and can be customized according to user needs. Different models of products. According to the weaving method, the stainless steel mesh for acid and alkali can be divided into plain weave, twill weave, plain Dutch weave, herringbone weave, mat type weave, etc., and the materials include SUS304, 304L, SUS316, SUS316L, etc. In addition, the product can be designed and manufactured according to user requirements, and provide processing services for supplied materials.   Features are as follows:   1. Stable filtering effect, not easy to deform; 2. High strength, excellent pressure resistance; 3. Easy to clean, especially suitable for backwashing; 4. High temperature resistance, up to 480℃; 5. Corrosion resistance, excellent wear resistance; 6. Easy to process, suitable for cutting, bending, stretching, welding and other processes.

Barbed wire, also known as caltrops, is a metal product widely used in various isolation and protection occasions. It is mainly made of high-quality low- carbon steel wire twisted and woven by a fully automated barbed wire machine. According to different weaving methods and raw material processing processes, barbed wire can be divided into many types.   Types and characteristics:   According to the weaving method, it can be divided into two types: single-wire twisted and double-wire twisted. The structure of single-wire twisted barbed wire is relatively simple, the price is low, and it is suitable for general protection needs; the double-wire twisted barbed wire has a stronger structure and stronger durability. According to the raw material processing process, it can be divided into electrogalvanizing, hot-dip galvanizing, plastic coating (including PVC coating) and spraying. These surface treatment processes can not only improve the service life of the barbed wire, but also meet different aesthetic needs through color changes, such as blue, green, yellow, etc.   Uses:   The main use of barbed wire is for isolation and protection in places such as grassland boundaries, railways, highways, military facilities, prisons, detention centers, and government agencies. Due to its beautiful appearance, economical and practical, good barrier effect, and convenient construction, it has been widely used in various occasions at home and abroad in recent years.

BRC fence, also known as roll-top fence or welded fence, is a specially designed welded wire mesh fence. It is characterized by a unique "roll-up" design at the top and bottom. The guardrail is welded with high-strength steel wire and bent at both ends to form a triangular roll-top shape, which ensures the structural strength and mesh accuracy. The roll top fence, also known as the welded mesh panel fence or BRC fence, is a safe and durable option for various applications. It features a rolled top and bottom with no sharp edges, ensuring safety. The wire mesh fence can be customized in height and width to suit specific project needs. Roll-top fence specifications Material: high-quality low-carbon steel Wire diameter (mm): 3.0/4.0, 4.0/5.0, 5.0/6.0 Mesh size: 50 x 100 mm, 75 x 150mm, 50 x 200mm or as required Height (mm): 900-2400 or as required Length (mm): 1500, 2000, 2500, 3000 or as required Surface treatment: powder coating, PVC coating, hot-dip galvanizing, etc. All colors are RAL colors Roll top fence advantages Looking for a fence that is both practical and beautiful, BRC mesh fences are the best choice. Its unique curling design not only provides a user-friendly contact surface, but also achieves excellent rigidity and visibility through 4- 5 mm rectangular holes. Here are some highlights of BRC guardrails: • High safety performance: The special construction of the top and bottom ensures that the edges are not sharp, and the smooth curved edges effectively reduce potential harm to the human body. • Excellent structural strength: With thicker steel wire and hot-dip galvanizing, roll top mesh can effectively withstand external force impact while maintaining long-term beauty and strength. • Precise size specifications: The electrofusion welding technology of brc fencing mesh ensures the accuracy of panel and grid sizes. • High transparency: The high transparency of BRC fences allows your garden scenery to be perfectly displayed, and it can be clearly viewed even at night. • Elegant appearance: The unique triangular top and bottom design makes its appearance more attractive and gives people a comfortable feeling. • Flexible and convenient: Single panels can be easily replaced, and installation and removal are convenient and quick. • Economic and environmentally friendly: BRC fencing mesh panels are not only affordable, but also recyclable, which is more economical than 358 guardrails and fence guardrails.   Roll top fence applications Roll top fencing is widely used to define areas, protect, fence, and ensure high reliability requirements, such as infrastructure, transportation service places, public areas, industrial areas, parks, schools, playgrounds, factories, parking lots, residential areas and agricultural areas. BRC fences are based on conventional welded mesh, with the top and bottom bent and thicker steel wires used to enhance impact resistance. Its precise mesh structure ensures a clear view and can be viewed at night.

Galvanized steel chain link fencing, also known as diamond mesh fence. This type of wire mesh fencing is made from galvanized steel wires woven into a diamond-shaped mesh pattern. It is a popular choice for residential, industrial, and commercial applications due to its durability and cost- effectiveness. Our chain link fences are available in various materials, including stainless steel, galvanized, and PVC-coated wires, providing flexibility in design and functionality.   Chain link fences features • Durability: Made from galvanized steel, our chain link fences are highly resistant to rust and corrosion, ensuring a long service life. • Easy Installation: The modular design allows for quick and easy installation, reducing labor costs and time. • Versatile Applications: Suitable for a wide range of applications, including residential boundaries, sports fields, industrial sites, and event crowd management. • Customizable Options: Available in various heights, mesh sizes, and finishes, allowing for customization to meet specific security and aesthetic requirements. • Cost-Effective: Galvanized chain link fencing is an economical choice compared to other fencing options, offering excellent value for its performance.   Galvanized Chain Link Fence vs. PVC-Coated Chain Link Fence • Coating: Galvanized chain link has a zinc coating for corrosion resistance, while PVC-coated chain link offers additional color options and enhanced appearance. • Cost: Galvanized chain link is generally more cost-effective than PVC-coated options. • Maintenance: Both require minimal maintenance, but pvc coated chain link fence may need occasional cleaning to maintain their appearance.   Galvanized Chain Link Fence vs. Stainless Steel Chain Link Fence • Material: Stainless steel chain link fence offers higher resistance to corrosion and is suitable for high-grade applications, while galvanized steel is more economical and durable. • Appearance: Stainless steel maintains a bright luster, making it ideal for decorative purposes.

The 358 anti-climbing fence is designed to prevent climbing and shearing, and is difficult to damage even with ordinary hand tools. Its panels are equipped with small holes to effectively prevent feet and fingers from hooking, and have good anti-climbing characteristics, excellent visual transparency and damage resistance. Each joint of the 358 security fence adopts high-strength welding technology to ensure its sturdy and durable characteristics. The wire mesh fence is designed to provide solid protection for industrial and commercial properties and public facilities. When used with electronic alarm and detection systems, it is also suitable for military bases, airports, prisons and other places with high security requirements.   Panel Introduction The anti climb security fence is composed of tough welded mesh panels with fine mesh. This structure makes it difficult for conventional tools to implement damage. The name 358 comes from the size specifications of the panel mesh - about 3×0.5×8 (about 75mm×12.5mm×4mm). This mesh structure is suitable for both high-security places and low-risk areas where a sense of security needs to be enhanced. Its tiny hole design makes it difficult for potential intruders to climb with fingers or toes, and it is also difficult to insert cutting tools. Panels are woven from steel mesh with a width of 2515 mm and heights between 2007 mm and 3302 mm, providing a high level of safety. Multiple panels can be stacked to achieve a total height of up to 6300 mm. Grid pattern: 75 mm (3) x 12.5 mm (0.5) cross points with good resistance welding. Wire diameter: 4 mm horizontal and vertical wires. Weld strength: Between 540 and 690 N/m2. Finish: 358 anti climb fencing panels use hot dip galvanized steel wire followed by PVC powder coating (minimum 100 microns thick) or PVC powder painting. This adds extra protection and may extend service life. Mounting: Overlap posts by at least 75 mm and secure using slotted clamps and M8 diameter bolts.   Yaoguang 358 anti-climbing fence features: • Anti-climbing: The dense mesh design prevents fingers from being inserted, effectively deterring climbing attempts. • Anti-shearing: The dense and high-strength wires make 358 high security fence impossible for pliers to be inserted, making it difficult to cut. • Good Visibility: Anti climb anti cut fence facilitates inspection and lighting needs, allowing for clear visibility while maintaining security. • Flexible Connection Options: Multiple meshes can be connected, making it suitable for protective projects with specific height requirements. • Compatibility with Razor Wire: 358 security mesh can be overlapped with razor wire for enhanced security measures.

PV Jaw Crusher Introducing the PV Jaw Crusher, a cutting-edge product from Shanbao. Our team has combined years of practical experience with advanced technology and design means to develop this new and innovative jaw crusher.  The PV Jaw Crusher is a versatile and powerful machine that can crush a wide range of materials with a compressive strength of up to 250 MPa. Its robust construction and high-quality components ensure that it is built to last, while its advanced design features make it easy to operate and maintain.  We offers variety of jaw crusher in wholesale. Contact us today for your needs.   Application Fields This series of products are widely used in the primary crushing of various ores and rocks in various fields such as mining, smelting, building materials, highways, railways, water conservancy and chemical industries. Applicable materials include limestone, iron ore, basalt, granite, river pebbles, gold ore, etc. Here are some more details on the applications of these products in various fields: 1. Mining: In the mining industry, these products are commonly used for primary crushing of various ores and rocks, such as iron ore, copper ore, gold ore, and silver ore. The jaw crusher's ability to crush materials into smaller sizes makes it a crucial piece of equipment in the mining process. This helps to increase efficiency and reduce costs associated with material handling. 2. Smelting: The smelting industry uses these products to crush raw materials that are later processed into metals. For example, the primary crushing of iron ore is an important step in the production of steel. Jaw crushers can be used to crush other materials used in smelting, such as copper ore and lead ore. 3. Building Materials: In the building materials industry, jaw crushers are used to crush materials such as concrete, brick, and asphalt. These materials are later used in the construction of buildings, roads, bridges, and other infrastructure projects. The jaw crusher's ability to crush materials into smaller sizes helps to reduce material costs and makes it easier to transport materials to construction sites. 4. Highways and Railways: In the construction of highways and railways, jaw crushers are used to crush materials such as gravel and aggregate. These materials are later used as a base layer for the road or railway track. The jaw crusher's ability to crush materials into smaller sizes helps to create a more even and stable base layer. 5. Water Conservancy: In the water conservancy industry, jaw crushers are used to crush materials such as river pebbles and granite. These materials are later used to construct dams, reservoirs, and other water conservancy projects. The jaw crusher's ability to crush materials into smaller sizes helps to create a more stable and durable structure. 6. Chemical Industries: In the chemical industry, jaw crushers are used to crush materials such as limestone, gypsum, and other minerals. These materials are later used in the production of fertilizers, chemicals, and other products. The jaw crusher's ability to crush materials into smaller sizes helps to improve the efficiency of chemical processes and reduce costs associated with material handling.  

Gyratory Crusher Introduction: ● The production of gyratory crushers has a long history. Compared with the jaw crusher, its product size is uniform, the wear of the crushing wall is small, the operating rate is high, and the production capacity is large. ● Since the direct-turning type of ore feeding can be used, production facilities such as raw ore silos and feeders can be omitted when choosing the crushing production process for coarse crushing. It is the preferred typical equipment for coarse crushing of various hard materials in medium and large mines and other industries. . ● Modern gyratory crushers adopt more sophisticated manufacturing processes, more sophisticated control technology, and more sophisticated sensing equipment. This new type of gyratory crusher is smarter, more efficient, and more reliable.   Gyratory Crusher Advantages High crushing ratio: Gyratory crusher has a large crushing ratio and can be crushed into smaller particles at one time, reducing the burden of subsequent crushing links. Large processing capacity: Gyratory crusher can handle a large amount of materials, suitable for large-scale ore processing operations, and improve overall production capacity. Low maintenance requirements: The use of modular design and highly wear- resistant materials reduces the maintenance frequency and cost of gyratory crusher and improves economic benefits. Uniform finished product size: The optimized crushing chamber design and precise control system of Gyratory crusher ensure uniform product size. Each crushing can produce finished products with uniform particle size distribution, reduce excessive fine crushing and oversized particles, improve product quality, and meet the high-standard building materials and ore processing requirements. Low wear on the crushing wall: Gyratory crusher uses a crushing wall made of highly wear-resistant alloy material to significantly reduce the wear rate. The unique crushing chamber design and reasonable load distribution extend the service life of the equipment, reduce the maintenance frequency and cost, reduce downtime, and ensure long-term stable operation of the equipment. High operating rate: Gyratory crusher has an optimized design, efficient power transmission system and precise control technology, which significantly improves the operating rate. Gyratory crusher design and automated control system ensure efficient operation of the equipment, reduce material residence time, improve crushing efficiency and output, and meet the needs of large-scale production. Strong production capacity: Gyratory crusher adopts high-power drive system and optimized crushing chamber design, with strong production capacity. High- efficiency crushing force and material handling capacity ensure that the equipment remains stable under high load and long-term operation, and high output and product quality are equally important, which improves the efficiency of mining and ore processing.   Gyratory Crusher Uses Gyratory crusher is widely used in the following fields: Mining: used for primary crushing of ore, especially suitable for processing hard and abrasive ores such as iron ore, copper ore and gold ore. Building materials: used to produce sand and gravel aggregates and provide high-quality building materials. Metallurgical industry: used for crushing various metal ores to improve smelting efficiency. Chemical industry: used for primary crushing of chemical raw materials to improve production efficiency.

This series of vibrating screens are also referred to as circular vibrating screens because their motion is similar to circular motion. It is a new type of multi-layer, high-efficiency vibrating screen. The machine adopts a block eccentric vibration exciter and a tire coupling to increase the service life of the equipment; the equipped spring vibration damping device can effectively reduce the impact force on the foundation and has low noise.   Application fields This series is specially designed for quarry stone screening, and can also be used for product classification in coal separation, mineral processing, building materials, electric power and chemical industries. Multi-layer screens are available to meet the needs of screening materials of different sizes.   Suitable material Limestone, granite, basalt, diabase, shale, quartz stone, river pebble, iron ore, coal gangue, non-ferrous metal ore, cobblestone, etc.   Product features: 1. Advanced structural design, strong excitation force 2. High vibration intensity 3. Small initial vibration 4. Stable across the resonance zone 5. Less screen blockage 6. Low noise, improve working environment、 7. Easy to repair, strong and durable

Shanbao SCB series vertical shaft impact crusher adopts new technology and equipment to develop and produce crushers with high technical standards. It is a model of the perfect combination of professional crushing technology and mechanical manufacturing, and is a full manifestation of new technology and new craftsmanship.   Application fields It is widely used in expressways, railways, construction, municipal engineering, concrete mixing plants, etc. to produce high-quality sand and gravel aggregates, and has become the core equipment in the artificial sand making industry and the field of stone shaping.   Suitable material Limestone, quartzite, river pebble, basalt, granite, diabase, etc.   Product features: 1. Excellent crushing performance; 2. Long service life of wearing parts, special high chromium cast iron and cemented carbide are used to reduce production costs; 3. Large processing capacity and high output; 4. One machine with multiple functions and flexible application, quickly complete the conversion between "stone hitting stone" and "stone hitting iron"; 5. Excellent product size; 6. Low noise, low vibration, and unique patented air self-circulation system, which reduces dust and is conducive to environmental protection.

This series of machines have compact structure and high production efficiency. The machine adopts bowl-shaped bearings with high precision reserves, and adopts a centralized thin oil lubrication system and a novel dry oil seal and dust-proof system. When the size of the discharge port needs to be adjusted, it can be adjusted with a hydraulic cylinder or a manual winch. When the material in the crushing chamber cannot be crushed, the spring safety device can protect the equipment from damage.   Application fields This series is usually used in secondary crushing and tertiary crushing. The standard cavity type is suitable for medium size crushing, and the medium and short head types are suitable for fine size crushing. They are widely used in mineral processing, building materials, water conservancy, chemical industry and other fields.   Suitable material Iron ore, copper ore, limestone, granite, basalt, diabase, shale, quartz stone, river pebble, etc. Product features: 1. Large crushing ratio; 2. Good material granularity; 3. The adjustment of the discharge opening is convenient and fast; 4. Overload protection against iron material’s entering; 5. Concave with uniform abrasion and long usage life; 6. Sealed by dry oil or water; 7. Low product maintenance cost; 8. Stable operation and high reliability