Zhejiang SOUND Machinery manufacture Co., LTD

SOUND Machinery Shaping plastics in China since 1955.

It is a leading pioneer in the plastic Injection Molding Machine industry in China.

As a key enterprise under ZHEJIANG ARTIKING GROUP CO., LTD, SOUND is among the first batch of national high-tech enterprises and one of the cornerstone companies in Zhejiang Province's advanced equipment manufacturing sector.
For more than 70 years, SOUND has been at the forefront of innovation, research, and manufacturing of high-performance injection molding machines, earning prestigious accolades including:

★ The only national silver award in the domestic plastic machinery industry

★ Second-class National Scientific and Technological Progress Award

★ First Prize for Scientific and Technological Progress in Zhejiang Province

Unlock your production’s potential with four powerhouse series:

◉ UN Precision Series (100–6000 T)
Third‑generation servo‑driven accuracy for medical, electronics, and insert molding.

◉ DP Two‑Platen Series (450–9000 T)
China’s largest 9000 T two‑platen press—ideal for massive automotive bumpers, appliance housings, and structural parts.

◉ UN‑EMH Hybrid Series (110–450 T)
Electric‑hydraulic synergy slashes energy use and cycle times for engineering plastics.

◉ FJ/GJ Twin‑Screw Series (400–4000 T)
Dual‑barrel melt mastery for high‑viscosity and filled compounds in composite and pipe applications.

From petite prototypes to full‑scale runs, Honglong delivers precision, power, and efficiency—backed by local service. Elevate your molding game today!

SOUND Machinery is more than a manufacturer — we are an innovation-driven partner committed to building a one-stop solution for injection molding plants.

We listen to customers, value our team, and drive growth through constant innovation. Our goal is to become a global leader in smart manufacturing and a trusted name in plastic injection molding machine manufacturing.