The extrusion workshop operates 93 extrusion lines, including 72 extrusion presses below 55 MN, 11 presses at 75 MN, six presses at 90 MN, and four presses at 125 MN. Additionally, two newly introduced 225 MN extrusion presses are set to commence operation, expanding the company’s annual extrusion capacity to 1,000,000 tons.

The extrusion process is supported by equipment including a 16.5 m vertical quenching furnace, a 24 MN hydraulic stretching and straightening machine, a 30 m aluminum profile aging furnace, a single-column hydraulic press, and a roller-type aluminum profile straightening machine.

Behringer bandsaws, 24 MN hydraulic straightening presses, and vertical quenching furnaces

Zhongpeng currently operates 93 extrusion production lines of various specifications. The extruded profiles fully meet the requirements of large-section and complex-section aluminum alloy profiles, tubes, and rods used in high-speed trains, subways, ships, aerospace, heavy-duty truck bodies, containers, and industrial heat sinks, as well as curtain walls, doors, and window profiles for the construction sector. Production standards are internationally leading, with an annual output of 700,000 tons.

Zhongpeng has invested heavily in advanced equipment imported from abroad, including casting units, homogenization furnaces, hot rolling mills, stretchers, aging furnace units, and quenching furnaces. The facility also includes three-stand, two-stand, and single-stand cold rolling mills, intelligent high-bay storage, bending and straightening equipment, trimming machines, air quenching furnaces, and packing machines. Products serve applications in aerospace, aviation, shipbuilding, chemical industry, transportation, mechanical equipment, and power electronics.

The hot rolling mill has a roll width of 4,500 mm. The air quenching line and composite plate quenching technology feature a total line length of 309 m, capable of producing sheets 0.3–4.0 mm thick and 1,060–2,650 mm wide. It ranks as the world’s second-largest aluminum plate rolling mill.

The SMS cold rolling mill supports a maximum entry thickness of 12 mm, minimum exit thickness of 0.2 mm, with a finished sheet production capacity of 141,000 tons per year.

In the deep processing segment, Zhongpeng employs over 50 engineering technicians and operates more than 200 pieces of equipment. This includes 29 three-axis machining centers, 18 five-axis machines, 85 welding machines, 8 automated welding systems, 1 friction stir welding unit, and 25 bending and rolling machines. These capabilities provide optimized solutions for customers.

FOOKE gantry machining centers are used for welding large railway car body components.

Zhongpeng operates six anodizing lines, four electrophoretic coating lines, seven vertical powder coating lines, two horizontal powder coating lines, one high-pressure fluorocarbon coating line, five insulation lines, three wood-grain effect aluminum profile lines, two reciprocating polishers, and five mechanical sandblasters.