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Crosshead The crosshead links the piston and the connecting rod and has a guiding effect. It slides on the guide plate, and transmits the gas pressure in the cylinder to the crank connecting rod mechanism, ther...
II. Fastener Manufacturing Process (3) 2.2.6 TurningTurning is a type of machining that primarily uses lathes to perform cutting operations on work piece blanks to achieve the desired workpiece profile.Turning operations include lathe cutt...
Inspection & Measurement The quality management department of Jinan ZhongChuan Equipment Co., Ltd (JNZC). is fully responsible for the company's quality management work and has established project management, quality syst...
Surface Treatment Surface Treatment:In-house solutionsBlack oxidePhosphatingFlake zinc-aluminum coating (Dacromet, Geomet)HDG (Hot dip galvanizing)Electro galvanizingMechanical galvanizingCopper platingTeflonSpecial co...
Hexagon Fit Bolts The front thread of hexagon fit bolts is used for connection, and the back end without thread is used for positioning. It can withstand lateral and axial loads. The lateral load-bearing method depends...
Coupling Bolts Coupling bolts are mainly used in the diesel engine industry.All items are produced in strict accordance with industry standards or client-specific requirements.
Heavy Trucks, Construction & Mining Equipment Due to the harsh working conditions, heavy trucks, construction & mining machinery require fasteners to have high reliability such as anti-loosening and wear resistance.Jinan ZhongChuan's (JNZ...
Super Nuts Hydraulic nuts are used for bolts that need to be disassembled frequently, pre-tightening of super-large bolts, and locking of large workpieces.The principle of the hydraulic nut is that the hydraulic...
Flanges Flanges are parts that are connected between shafts and are used for connection between pipe ends. It is also useful for flanges on equipment inlets and outlets, which can be used as the connection be...
II. Fastener Manufacturing Process (4) 2.2.8 Heat TreatmentHeat treatment is a comprehensive technological process in which materials are heated, held at temperature, and cooled within a specific medium to control their properties by alter...
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Inspection Integrated tests and inspection instruments for chemical, mechanical, and precision measurement
Hexagon Bolts The hexagonal bolt is an externally threaded fastener with a hexagonal head shape, which cooperates with a nut and is used to fasten and connect two parts with through holes.High-strength hexagonal bo...
Wheel Studs Wheel studs are mainly used in heavy trucks, engineering, and mining machinery industries, and are threaded fasteners used to fix wheels.All items are produced in strict accordance with industry stand...
Heavy Lift For the long-term reliability of operation, the key parts of heavy lifting equipment at offshore engineering and ports, such as slewing bearings, key joints of booms, etc., all require reliable High S...

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