Environmental Technology
HTR hardens wear-resistant components for plastic recycling machines used around the world. Environmental technology refers to the technical and technological processes used to protect the environment and restore ecosystems that have already been damaged.
Plastic Recycling Machinery and System Components
An important area of environmental technology is waste management, which includes waste recycling. The Upper AustrianErema Groupisthe leader in the development and manufacture of plastic recycling machines and system components. HTR has been finishingcomponentssuch as extruder screws and screens for the company since2001.
Nitriding & Vacuum Hardening
The extruder screws are nitrided to achieve the desired component properties.
In nitriding , components gain improved corrosion protection as well as high wear and fatigue resistance. Nitriding is the only hardening process that does not cause any process-related distortion of the component. No post-processing is required. The screens, which are later used in Erema systems worldwide, are vacuum-hardened. During vacuum hardening , the component is heated in a vacuum and then quenched using nitrogen under positive pressure. This produces a bare metal surface. Thanks to precise process control, the results are highly reproducible.
Our CORE COMPETENCIES
As one of the leading hardening companies,we are your reliable partner for industrial heat treatment. For over 25 years we have been hardening steel and other metals using state-of-the-art processes – dimension-stable, wear-resistant, and reproducible. Whether individual parts or series production: we combine expertise, state-of-the-art equipment, and process controlto achieve the highest hardness quality and warp resistance .
48-hour service
Thanks to our unique organizational structure and customer-focused flexibility, we have been delivering top-quality hardened parts in record time for over 25 years.
Quality assurance
With a state-of-the-art control system, we keep an eye on all important parameters at all times and ensure that only flawless products are delivered.
Pick-up and delivery service
As part of our worry-free service package, our company-owned transport fleet enables daily pickups and deliveries in the central region of Upper Austria.
Knowledge transfer
In customized seminars, you will learn which combination of materials and hardening processes can reduce the costs of your project while achieving optimal component properties.
OUR INDUSTRIES





