Steel parts often require some form of heat treatment to increase their hardness and obtain maximum strength and durability. We need to carefully consider the heat treatment processing requirements to ensure the optimum performance properties can be achieved from the steel used to manufacture the machine blade.

Between November 3rd and 27th, our company presented itself at the international virtual trade fair VETAS digital, which is intended for the presentation of machines, technologies and equipment for wood processing, as well as for the furniture and interior design industry.

DESIGNED BY SIJ RAVNE SYSTEMS 

We are delighted to officially announce the launch of our new packing and marking line for knives. Customized turnkey solution, from conceptual design to customized engineering and in-house installation.

SIJ Ravne Systems – one of the biggest original European producers of chipper knives

Ensure proper handling of the knives always to avoid damages and assure a long lifetime.

Ravne na Koroškem, January 29, 2020 - 400 years ago, in 1620, Melhior Puc, an ironsmith and miner from the Labot Valley, brought a concession for two melting furnaces to Črna na Koroškem and set up the first ironworks at Mušenik.

PLASTICS RECYCLING CONFERENCE AND TRADE SHOW 2020

After 3 successful days of Plastics Recycling Conference & Trade Show in Nashville, it closed the doors on 19. February 2020. The 15th annual conference had record-setting attendance and was marked by networking and knowledge-sharing.

Blechexpo 2019, which held from November 5-8, in Stuttgart, Germany, has ended successfully.

 We appreciate our customers’ feedbacks!

Here’s what some of our customers say about our work.

For perfect knife performance, proper and timely maintenance is required. It is recommended to follow machine instructions from machine manufacturer for installing the knives and setting correct cutting gap.

Ask for DURALIFE V+ KNIVES – the next generation of granulator knives

An industrial knife is the heart and soul of the recycling process. It crushes and mills different types of waste – reusable raw materials (PET, plastics, copper, aluminium, rubber etc.) into granulate. Waste is never completely homogeneous. Normally it contains a variety of foreign bodies, which is why knives are usually under constant pressure. Consequently, chipping and breaking of the blades occurs quite often and is nothing uncommon.

The main project objectives are optimizing the technological process for the production of a innovative wood peeling system and launching a new and innovative set of products on to the market.

Knife manufacturing technology at SIJ Ravne Systems has evolved tremendously over the years to meet the increasing demand for cost-effective top-quality knives for specific industrial applications (metal industry, recycling, wood and wood processing industry and also paper and tire industry). 

Our 50 years of experience and cooperation with leading machine builders (OEM) in R&D projects and knife users worldwide means we can customize knives to suit your specific application and special requirements.

SIJ Ravne Systems is a part of SIJ Group and as such remains the only knife manufacturer in the world within an integrated vertical supply chain with access to its own tool steel.