
Since the early 2000s, mobile twin-shaft shredders have been marketed with the promise of offering an affordable and relatively simple solution for producing marketable shredded material.
While these machines have been the go-to for small operators looking to add value to their material, most operators quickly find that achieving sufficient material density requires running the material through a shredder multiple times. Even then, achieving optimal separation and recovering nonferrous materials remain challenging. This leaves many operators wondering if twin-shaft shredders are the ultimate solution that many were led to believe.
What if there was a way to overcome these limitations, improve productivity, reduce operational costs and unlock higher revenue with a simple upgrade?
Enter ZB Group’s THOR 6363 K mobile hammermill—a game-changing solution designed to deliver cleaner, denser and more valuable scrap efficiently.
“In 2012, we identified a significant gap between the output of twin-shaft shredders and the density and cleanliness steel mills demanded,” ZB Group CEO Lander Arrieta says. “That’s when we engineered the THOR 6363 K to bridge that gap and provide a versatile, low-cost solution for producing value-added material.”
At ZB Group, we have been prioritizing innovation and product development for more than 40 years, and it’s with that spirit that the THOR 6363 K was engineered as a versatile and low-operational-cost hammermill tailored to provide higher-value material with significantly improved density for those operating twin-shaft shredders.
Maximized productivity, low operating costs
The THOR 6363 K was engineered with efficiency and productivity in mind. Designed to process between 20-25 gross tons (GT) per hour of preshredded material, the hammermill operates on a small engine.
The standard application runs on a 755-brake horsepower (BHP) diesel engine, which powers the rotor and all the auxiliary systems (tracks, hydraulics, etc.). However, higher power and/or electric options are available when needed.
In a market where labor is increasingly hard to find, the compact design of the THOR 6363 K ensures it can be operated by the crane loader feeding the material, reducing the need for additional personnel.
Our patented technology, “ZBrain,” ensures seamless operation of all components—feeding system, rotor, motor, outfeed system and auxiliary systems (magnets and eddy currents). This intelligent automation allows operators to focus on loading material, while the software handles optimization, boosting productivity and cutting costs.
A cost-effective solution with significant value
One of the most attractive features of the THOR 6363 K is its relatively low operating cost, which typically ranges between $15 and $25 per GT. Because the THOR 6363 K can upgrade your material to higher-value products, this cost becomes a small price to pay. For example, upgrading material from HMS No. 2 to shredded scrap can generate an additional $40 to $60 per GT in most markets.
Beyond increasing the value of the material, the THOR 6363 K’s ability to produce regular and homogeneously sized output greatly facilitates the separation of nonferrous materials, aiding in the recovery of zorba and bringing in an additional revenue stream. With zorba fetching a market value of 78 cents to 88 cents per pound, this nonferrous recovery can be a significant contributor to your bottom line, further boosting the overall profitability of your operation.

High ROI and flexibility for all operations
The THOR 6363 K offers an outstanding ROI of 30-50 percent in most markets, making it an investment that pays for itself quickly.
The flexibility of the design ensures it can be used in a variety of environments with minimal preparation. While a concrete slab is recommended for optimal operation, compacted ground or gravel is sufficient to set up the machine. The Thor 6363 K arrives fully assembled and, once unloaded from the low-boy, is ready to operate, minimizing downtime and maximizing productivity.
This mobility, combined with its durable construction and high-quality components, ensures the THOR 6363 K maintains a high residual value, further adding to its appeal as an investment.
Designed for durability, local support
At ZB Group, we focus on delivering high-quality products designed for longevity. The THOR 6363 K is built with top-tier components from leading manufacturers, ensuring reliable performance and availability of parts locally. We understand downtime can be costly, so we partner with global brands to ensure fast and efficient service and support.
The modular design allows for multiple variations (infeed system, feeding rollers, power unit, etc.) to best fit every application based on customers’ needs. If those needs change, the smart sectional construction allows for modules to be changed, increasing the efficiency of the operation and helping maximize the investment.
“Once we arrived in the U.S. back in 2013, it became clear that the North American market demanded local support” Lander says. “We take the trust our customers place in us and our products very seriously. That’s why, in 2015, we decided to open a postservice subsidiary, ZB North America, in Atlanta.”
Our local team is always well-stocked and available to provide assistance and guidance to ensure your machine operates at peak performance.
Paring the right machine to the right application
When it comes to achieving high-density material, purity and efficient nonferrous recovery, the THOR 6363 K is the ideal solution for operators currently using twin-shaft shredders but struggling with efficiency and profitability.
If you’ve found that running material multiple times through your shredder is costing you more than it’s worth, it could be time to consider the THOR 6363 K. By adding a hammermill to your process, you’ll be able to achieve cleaner, denser and more valuable scrap while reducing your operating costs.
Ready to revolutionize your recycling operation? Interested in meeting real customers who already have made this upgrade? Contact ZB Group today to learn how the THOR 6363 K mobile hammermill can increase your profitability with minimal investment. Let us help you achieve cleaner, denser and more valuable scrap—backed by our world-class service and support.

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