Plastic-Steel Office Chair

The plastic-steel office chair is an office seat made from a composite of plastic and steel, featuring high strength, wear resistance, and rust prevention. Market prices vary depending on the type and batch size.

Structure and Materials

The main structure of the plastic-steel office chair combines a steel frame with a plastic surface layer. The core structure consists of a hollow steel frame and a micro-foamed plastic layer. The hollow steel frame provides basic support, while the micro-foamed plastic layer is uniformly wrapped around the frame surface through extrusion technology, forming a steel-plastic composite structure. Both ends are sealed with injection-molded end caps, enhancing structural stability and preventing exposure of the internal steel, effectively improving bending resistance and load-bearing capacity. The outer plastic layer is cured at high temperatures to form a dense coating that combines wear resistance with rust prevention, making it suitable for long-term office use and reducing damage caused by friction or humid environments.

Manufacturing Process

During manufacturing, electrostatic spraying technology is used to uniformly adsorb plastic powder onto the surface of the steel frame, which is then cured at high temperatures to form a coating. This process avoids the pollution issues associated with traditional solvent-based coatings, meets environmental requirements, and satisfies the demands of mass production, ensuring product consistency and production efficiency. Extrusion technology is used for forming the steel-plastic composite layer, tightly bonding the plastic and steel through high temperature and pressure; injection-molded end caps are formed through mold injection, achieving precise sealing of the end structures.

Market Types and Prices

There are various types of plastic-steel office chairs on the market, with prices varying significantly based on design, batch size, and functionality. For example, simple office chairs, steel-plastic conference chairs, and foldable negotiation chairs, when purchased in bulk (≥100 units), have a unit price of ≥110 yuan, suitable for conference rooms or training settings; supplies such as plastic-steel chairs and injection-molded desk-chair sets, when purchased in bulk (≥200 units), have a unit price of ≥36 yuan, commonly used in schools or public areas; simple training chairs and office conference chairs, when purchased in bulk (≥4 units), have a unit price of ≥54 yuan, balancing stylish design with practicality, suitable for cafes or hotels. Price differences primarily stem from material thickness, structural design complexity, and bargaining space for bulk purchases.