News

  • SIJ RAVNE SYSTEMS IS INVITING YOU TO THE ONLINE EVENT - BUSINESS TALKS

    Join the online event - Business talks with Chamber of Commerce and Industry of Slovenia.

    SIJ Ravne Systems BT mail

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  • SAVE THE DATE FOR IFAT 2022

    IFAT 2022 - world's leading trade fair for water, sewage, waste and raw materials management

    SIJ Ravne Systems IFAT mail4

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  • THIS IS US

    Meet the employes from SIJ ravne Systems. 

    OUR PEOPLE ARE THE KEY TO SUCCESS.

    By supporting you in choosing the right material for your application, with production at the highest level and our own heat treatment in the largest vacuum furnaces in Europe, we will help you achieve your goals in your production.

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  • SIJ RAVNE SYSTEMS PRESENTATION VIDEO

    You'll get lots of exciting insights and information about the company - with on-site footage from the headquarters in Ravne na Koroškem in Slovenia.  

    SIJ Ravne Systems Banner film preview 02

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  • What are the types and benefits of Knife Heat Treatment?

    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.

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  • Packaging and marking line for industrial knives

    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.

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  • Own chipper production center

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

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  • Knives Storage

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

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  • 400 YEARS OF STEELWORKING IN THE MEŽIŠKA VALLEY

    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.

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  • See what our customers say

     We appreciate our customers’ feedbacks!

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

     

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  • When does my knife need to be sharpened?

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  • Knives Maintenance

    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.

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  • Having problems with lifetime, throughput or cracking?

    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.

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  • Key benefits of RAVNE KNIVES

    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 industryrecyclingwood 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.

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