Valji

What Valji does

Valji d.o.o. (legal name: VALJI, proizvodnja valjev in ulitkov d.o.o.) is a privately-held Slovenian industrial manufacturer of cast rolls and castings, founded around 1900 and headquartered at Železarska cesta 3 in Štore, Slovenia. The company operates a single integrated production site that spans melting, centrifugal casting, heat treatment, mechanical finishing, and 100% inline quality control, serving three principal customer verticals: steel mills, rubber and plastics manufacturers, and the tool industry. Steel-industry products include working rolls, edger rolls, and pinch rolls engineered for HSM, CSP, ISP, ESP, Steckel, and Plate Mills; rubber and plastics customers are supplied with rolls for mixing, crushing, and plastic foil production; the tool industry receives cast sleeves, rings, and peripheral bored rolls. No public revenue, headcount, or external ownership is disclosed, and the company appears independently operated with a small leadership team.

The company's core technology is horizontal centrifugal casting, first deployed in-house in 1997 for double-layer cast rolls, which the company states delivers higher homogeneity and core-layer bonding than prior static double-layer casting. This is supported by an in-house laboratory equipped with proprietary centrifugal casting, wear-resistance, and bending test devices, plus ultrasound and Eddy Current systems integrated on grinding machines for 100% inline quality inspection. The product mix spans seven named metallurgical grades (High Speed Steel, Semi HSS, Graphitic HSS, High Chrome Steel, High Chrome Iron, Enhanced ICDP, Micro-alloyed ICDP), developed in cooperation with international research institutes. R&D, quality systems (ISO 9001:2015 since 1998, ISO 14001:2015 since 2007/2018, with ISO 45001 targeted), and capital-intensive production equipment collectively form the basis of the company's technical offering.

Valji generates revenue through one-time, quote-based sales of rolls and castings to industrial customers, with pricing determined by specifications, dimensions, and quality requirements rather than published price lists. Distribution is direct: a dedicated sales department led by a Head of Sales, sales assistants, and commercial sales staff handles customer inquiries and orders, with no resellers, distributors, or intermediaries disclosed. Marketing relies on the company website (Slovenian and English) and ISO-certified quality credentials. The company actively pursues international steel-mill customers globally, and its commercial footprint spans steel, rubber/plastics, and tool industry segments, though customer names are not publicly disclosed.

Name

Valji

Legal name

VALJI, proizvodnja valjev in ulitkov d.o.o.

Website

https://valji.si

Company type

Private

Founded year

1900

Operating status

Operating

Headcount range

101–250 employees

Short description

Valji d.o.o., founded in 1900 in Slovenia, manufactures cast rolls and castings using horizontal centrifugal casting technology for global steel mills, rubber and plastics producers, and tool industry customers from a single integrated facility in Štore.

Ownership category

akta.pro rank

Headquarters

HQ city

Store

HQ country

Slovenia

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Operations, Personnel, Infrastructure, Technology or R&D, Marketing or Sales

Revenue model

1. Roll Manufacturing and Sales: Production and sale of rolls for steel industry (hot rolling of thick and thin steel plates), rubber industry (mixing and crushing rolls), plastics industry (production of plastic foil), and profile programs. Includes work rolls for roughing and finishing stands, edger rolls, and pinch rolls for coilers.
2. Castings for Tool Industry: Production and sale of castings for tool industry including various types of sleeves, rings and peripheral bored rolls.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels2 records

Core offering

Valji manufactures and sells industrial cast rolls and castings through its own foundry in Štore, Slovenia, producing working rolls for steel industry hot rolling (HSM, CSP, ISP, ESP, Steckel, Plate Mills), rolls for rubber mixing/crushing and plastic foil production, and castings for the tool industry. Production employs proprietary horizontal centrifugal casting technology for double-layer cast rolls and indefinite chill quality rolls, with complete in-house operations from melting and heat treatment through mechanical machining and quality control.

Product overview

Valji is an industrial manufacturing company producing rolls and castings for steel industry, rubber and plastics industry, and tool industry. The product portfolio centers on three core offerings: Rolls for Steel Industry (working rolls for various rolling mills including HSM, CSP, ISP, ESP, Steckel Mills, and Plate Mills), Rolls for Rubber and Plastics Industry (for mixing, crushing, and plastic foil production), and Castings for Tool Industry. The company operates its own foundry with centrifugal casting capabilities and mechanical treatment workshops, offering various quality grades (High Speed Steel, Semi High Speed Steel, Graphitic High Speed steel, High Chrome Steel, High Chrome Iron, Enhanced ICDP, Micro alloyed ICDP) tailored to specific industrial applications.

Differentiator

Problem solved

Functional benefit

Products and services

• Rolls for Steel Industry High-tech working rolls for steel transformation sold to steel mills, including rolls for hot rolling of thick and thin steel plates. Products include working rolls for roughing and finishing stands, edger rolls, and pinch rolls for coilers, serving rolling mills such as HSM, CSP, ISP, ESP, Steckel Mills, and Plate Mills. Available in various quality grades including High Speed Steel, Semi High Speed Steel, Graphitic High Speed Steel, High Chrome Steel, High Chrome Iron, Enhanced ICDP, and Micro alloyed ICDP.
• Rolls for Rubber and Plastics Industry Industrial rolls for mixing and crushing rubber and for production of plastic foil, sold to rubber and plastics manufacturers. The working layer is made of hard cast iron with high cementite content in pearlitic matrix for high wear resistance and hardness when in contact with highly abrasive materials.
• Castings for Tool Industry Centrifugal castings sold to the tool industry, including various types of sleeves, rings, and peripheral bored rolls. Produced through centrifugal casting processes for tool manufacturers and industrial applications requiring precision cast components.

Quantifiable outcome

• Rolls with body length up to 3500mm and maximum final machined weight of approximately 40 tons
• +2 more outcomes

Named customers6 records

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Two partnerships are on record, tiered minor and core.

• Stroka Produkt d.o.o.minorImplementation/ SI/ Consulting PartnerWebsite design and implementation partner responsible for planning, design, graphic design, technical implementation, and content creation for Valji company website.
• International Research InstitutescoreStrategic or Co-development PartnerResearch and development partnerships with international institutes for development of new qualities of working layers and improvement of existing products. R&D department cooperates with various research institutions for continuous professional development and knowledge expansion.

Scale indicators6 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Villares Rolls: Brazil-based cast roll manufacturer with global reach, producing cast iron and steel rolls for hot strip mills, plate mills, and bar mills. Direct competitor to Valji serving overlapping steel mill customers across HSM, plate, and special steel applications.
• Wuxi Paike New Materials Technology: China-based manufacturer of cast rolls for steel mills and adjacent metallurgical products. Direct competitor to Valji in cast roll manufacturing for steel industry applications across multiple mill configurations.
• Anyang Hualuo Metallurgical Materials: China-based metallurgical materials manufacturer producing cast rolls and roll-related products for the global steel industry. Direct competitor to Valji in working roll supply, with cost advantages from larger-scale Chinese operations.
• SINO ROLL: Chinese cast roll manufacturer supplying cast iron rolls for steel mills. Competes with Valji in global roll supply, particularly for standard working roll grades used in hot rolling applications.
• Akers: Sweden-based roll manufacturer producing cast iron rolls (including indefinite chill and high-chrome grades) for steel mills worldwide. Closely comparable to Valji in product category, customer base (global steel mills), and centrifugal/centrifugal-equivalent casting process.

Broad incumbents

• Ellwood Group: US-based diversified steel foundry producing castings and forged components for industrial markets including steel mills, oil & gas, and heavy equipment. Comparable to Valji in casting capabilities and steel industry customer base, but operates at broader scale, multiple US sites, and across more verticals.
• Siderforgerossi: Italian steel foundry producing steel castings, forged products, and rolls for industrial markets. Overlaps with Valji in ferrous metal casting and roll production but operates broader foundry portfolio serving multiple industrial segments.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/valji-d-o-o-store

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles7 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Valji