Who is EJS?

30+ Years of Excellence in Screw Barrel Manufacturing

Since 1992, E.J.S Industry has evolved from a modest conical twin screw workshop into a global manufacturing powerhouse. Today, our 40,000m² facility houses 21 specialized workshops and employs over 400 skilled professionals, producing more than 30,500 screw barrels annually for clients across 50+ countries worldwide.

Our mission is simple yet ambitious: to make your screw barrel business easier, more efficient, and more profitable—by delivering precision-engineered products that consistently outperform expectations.

Premium Materials for Maximum Durability

Your screw barrel's performance and service life depend directly on the quality of its raw materials. That's why E.J.S sources only top-tier steel grades from certified suppliers, ensuring every product delivers exceptional wear resistance, corrosion protection, and thermal stability.

Our material portfolio includes:

This extensive selection enables us to match the perfect material to your specific application—whether you're processing highly abrasive compounds, corrosive materials, or operating under extreme temperatures.

Strategic Location in China's Screw Barrel Capital

Our factory is located in JinTang Island, Ningbo—the undisputed heart of China's screw and barrel manufacturing industry. This strategic location gives us access to a deep talent pool of over 30,000 specialized workers and a complete, vertically integrated supply chain ecosystem.

What this means for you:

• Faster production lead times—Production lead time can be down to 30 days after drawing confirmation if everything fits. For bigger projects, we E.J.S always does the best to shorten the time as much as possible.
• Competitive pricing—efficient logistics and supply chain optimization reduce your costs.
• Scalable capacity—With 40,000 square meters of production area, plus 40,000 pieces of production capacity, we’re capable of doing more for old and new partners.

Why Global Manufacturers Choose E.J.S

When you work with E.J.S, you're not just buying a screw barrel—you're gaining a manufacturing partner committed to your long-term success. Here's what that partnership delivers:

Pioneering Bimetallic Technology in China

E.J.S was among the first manufacturers in China to develop bimetallic screw barrels—and we've been leading the field ever since. Our long-standing expertise in this specialized area gives us a competitive edge that directly benefits your production.

Our bimetallic capabilities include:

• Four distinct alloy compositions—tailored to your specific application requirements
• Tungsten carbide content ranging from 35% to 45% for superior wear resistance
• Plasma spray coatings including Ni60, Colmonoy 56, and Colmonoy 83
• Advanced surface hardening for extended service life in demanding environments

Global Reach, Proven Performance

Our products are trusted by OEM partners and end users across five continents, including:

Expanding for the future: To meet surging global demand, a new production facility is currently under construction—further increasing our capacity and reducing lead times for customers worldwide.

Solutions for Every Industry

Our screw barrels and components are trusted across a wide spectrum of industries—from building materials to pharmaceuticals, from food processing to advanced recycling:

Whatever your application, E.J.S has the expertise and product range to optimize your production line.