Flange Nuts
Flanged nuts, which have a wide flange at one end, act as an integral gasket, which distributes the pressure of the nut across the part being secured, reducing the possibility of component damage. The...
Wear-resisting Dowel Pins
Wear-resisting dowel pins play the role of positioning or connection, fixing the relative position between parts, and are important auxiliary parts in combined processing and assembly.Wear-resisting d...
II. Fastener Manufacturing Process
2.2 Brief Introduction to Fastener Production Procedures2.2.1 Wire RodWire rod, also referred to as coil material or coiled stock, is produced by heating and rolling steel billets. (Due to inadequate ...
Application Industries
Quality Assurance
JNZC adopts the new product development project management method, makes full use of the five major tools of APQP to improve process control, and utilizes quality management tools such as 8D, fishbone diagrams, characteristic factor diagrams, and 5Why to trace the source and continuously improve quality management.
The production process adopts the combination of operator self-inspection, mutual inspection, and inspector's special inspection to effectively control product compliance.
Jinan ZhongChuan Equipment Co., Ltd.'s strict quality management system has been in operation for more than 20 years. We have established the complete process flow from product order receipt review, and product quality planning in the early stage to final delivery to customers to achieve customer satisfaction and continuous improvement.
Metrology and Measurement Center
Jinan ZhongChuan (JNZC) Metrology and Measurement Center is mainly responsible for the verification and calibration of length measuring instruments. Product precision dimension testing items, such as ...
Diesel Engine
Marine diesel engines are generally divided into high-speed, medium-speed, and low-speed diesel engines, and can be divided into the main engine and auxiliary engine according to their role in ships. ...
Nuts & Washers
Nuts are tightly connected with the bolt of the same specification through the inner thread.Washers are used between the supporting surface of bolts, screws, nuts, etc., and the supporting surface of ...
Anchor Bolts
Anchor bolts are screw rods used to fasten equipment, etc. on concrete foundations, and have strong stability.Anchor bolts can be divided into fixed anchor bolts, movable anchor bolts, expansion ancho...
Stay Bolts
Stay bolts are mainly applied in the diesel engine industry and are often used in large and medium-sized diesel engines. They are long bolts used for connecting and fastening important parts such as c...
Connecting Rod Bolts
Connecting rod bolts are mainly used in the diesel engine industry. It is an important bolt that connects the big end bearing seat of the connecting rod and the bearing cap to make it integrated.The h...
Wheel Nuts
The wheel nut is a special nut used to fix the outer hub of the car.All items are produced in strict accordance with industry standards or client-specific requirements.
King Pins
King pins are mainly used in the automobile and heavy vehicle industry and are the turning center of the steering wheel when turning. When the steering wheel turns around the kingpin as the axis, it i...
Precision Machining/Grinding
Precision Machining/Grinding:Automatic machining robot groups ...
The International Women's Day Salon was successfully held in Jinan Zhongchuan Equipment Co., Ltd.
To celebrate the 115th International Women's Day and enrich the spiritual and cultural life of employees, JNZC planned a wonderful flower art and cake salon on the afternoon of March 7, 2025, whic...
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