CAST IRON INDUSTRIAL COMPANY

What CAST IRON INDUSTRIAL COMPANY does

SIF (Société Industrielle des Fontes) is a French cast iron foundry founded in 1932 in Saint-Quentin by Maurice Staub and operating today as a privately held Société Anonyme with 51-100 employees. The company manufactures custom cast iron parts in small and average series, offering spheroidal graphite cast iron (EN GJS), lamellar graphite cast iron (EN GJL), and alloy cast iron (ni-hard, ni-resist, chromium alloy) at part weights from 0.2 kg to 80 kg and annual production capacity exceeding 2,500 tons. SIF serves twelve industrial verticals — including railway, hydraulics and industrial valves, heavy trucks, agricultural machinery, agri-food, defense, energy, shipbuilding, and textile machinery — with named certifications from SNCF, SNCB, and INFRABEL anchoring the railway segment.

The technical core is a fully automated sand-casting facility: IMPACT (800x600 ±250) and MULTIPISTONS (600x450 ±150) moulding lines, ASHLAND cold core box process (2.5 to 40 litres), 3D-printed cores for complex single parts and small series, two 1.5-ton medium-frequency induction furnaces and two 2.4-ton electrical furnaces, and six robotized deburring cells. Downstream services extend the value chain with 3-, 4-, and 5-axis CNC machining, sub-assembly, and outsourced surface treatments (painting, cataphoresis, galvanization, zinc plating, thermal treatment). In-house quality control covers spectrometer, thermal and image analysis, tensile and impact testing, Vickers/Brinell hardness, COFREND II-certified ultrasound, linear height gauging, 3D scanning, and CMM inspection. The RAID design team (Robotization, Assembly, Industrialization, Design Development) provides co-design, design-to-cost, and re-design engineering.

SIF operates a B2B, sales-led commercial model with quote-based pricing and multi-year contracts, distributed through direct sales (Phone: +33 3 23 50 69 69, [email protected]), a bilingual website, LinkedIn, and trade-show presence (CASTFORGE 2024 Stuttgart, SIFER 2025 Lille, Global Industriel 2026 Villepinte). Export sales to 11 European countries — Germany, Austria, Switzerland, Luxembourg, Belgium, Spain, Portugal, Netherlands, Italy, Sweden, Norway — account for approximately one-third of turnover. Certifications include ISO 9001, ISO 14001, ISO 50001 (DNV, August 2022), EU Pressure Equipment Directive 2014/68/UE, AD-2000 Merkblatt W0 / EN 764-5 material certification, and Lloyds Register.

Name

CAST IRON INDUSTRIAL COMPANY

Legal name

SA SOCIETE INDUSTRIELLE DES FONTES

Website

https://sifontes.com

Company type

Private

Founded year

1932

Operating status

Operating

Headcount range

51–100 employees

Short description

SIF (Société Industrielle des Fontes) is a privately held French cast iron foundry, founded 1932, manufacturing custom small/medium-series parts (0.2-80 kg) in EN GJS, EN GJL, and alloy cast iron for railway, hydraulics, defense, and heavy-equipment OEMs across Europe.

Ownership category

akta.pro rank

Product category

Industrial Cast Iron Foundry / Custom Castings Manufacturing

NAICS

Iron Foundries (331511)

SIC

Iron & Steel Foundries (3320), Industrial Process Furnaces & Ovens (3567)

akta.pro primary industry

Steel Casting (Continuous Casting, Ingots, Semi-Finished Slabs/Billets/Blooms) (IMAKABAD)

akta.pro secondary industry

Industrial Furnaces, Kilns & Thermal Processing Equipment (IMAHAEAE)

Keywords

• Cast iron foundry
• Custom castings manufacturing
• Sand casting services
• CNC machining foundry
• Spheroidal graphite iron

Headquarters

HQ city

Saint-quentin

HQ country

France

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Custom Cast Iron Parts Manufacturing: SIF manufactures small and average series of cast iron products weighing from 0.2 kg to 80 kg in spheroidal graphite cast iron, lamellar graphite cast iron, or alloy cast iron. The company produces more than 2500 tons of cast iron per year. Export represents nearly a third of the company's turnover.
2. Machining Services: CNC machining services including 3, 4, or 5 axis numerically controlled lathes and turning centres for complex machining operations
3. Assembly Services: Assembly of sets of parts, sub-assembly or accessories on casting parts to deliver complete products
4. Surface Treatment Services: Painting, cataphoresis, galvanization, zingage, and thermal treatment services delivered through subcontractor network

Pricing tiers

Go-to-market motion1 record

Distribution channels2 records

Marketing channels4 records

Core offering

SIF is a cast iron foundry manufacturing small and average series of custom cast iron parts weighing from 0.2 kg to 80 kg in spheroidal graphite cast iron (EN GJS), lamellar graphite cast iron (EN GJL), and alloy cast iron grades, with annual capacity exceeding 2,500 tons. The offering is delivered through a fully automated sand-casting process and complemented by integrated co-design, CNC machining, sub-assembly, surface treatment, and in-house quality control services for industrial customers across railway, hydraulics, defense, agri-food, heavy trucks, shipbuilding, and energy verticals.

Product overview

SIF (Société Industrielle des Fontes) is a cast iron foundry established in 1932, specializing in small and average series manufacturing of cast iron products weighing from 0.2 kg to 80 kg. The company offers a comprehensive portfolio spanning from foundry services (spheroidal graphite cast iron EN GJS, lamellar graphite cast iron EN GJL, and alloy cast iron) through machining, assembly, surface treatments, and quality control. The core offering includes manufacturing cast iron parts with various grades (EN GJS 400-700, EN GJL 150-300), supported by integrated services like co-design/re-design technical support, automated sand casting, 3D core printing, CNC machining (3-5 axis), robotic deburring, and surface treatments (painting, galvanization, thermal treatment). Production capacity exceeds 2,500 tons annually, serving diverse industries including railway, agri-food, hydraulics, defense, and energy sectors.

Differentiator

Problem solved

Functional benefit

Products and services

• Spheroidal Graphite Cast Iron (EN GJS) Parts Cast iron parts manufactured in spheroidal graphite cast iron (EN GJS grades) with weights from 0.2 kg to 80 kg, supplied in small and average series for industrial applications across railway, hydraulics, defense, energy, and heavy equipment sectors.
• Lamellar Graphite Cast Iron (EN GJL) Parts Lamellar graphite cast iron (EN GJL grades) parts produced for industrial applications requiring good castability and vibration damping, with weights from 0.2 kg to 80 kg in small and average series.
• Alloy Cast Iron Parts Custom alloy cast iron components including ni-hard, ni-resist, and chromium alloy cast iron grades manufactured to customer specifications on request.
• CNC Machining Services CNC machining services using 3, 4, or 5 axis numerically controlled lathes and turning centers for complex machining operations on cast iron parts for industrial customers.
• Sub-Assembly Services Assembly of sets of parts, sub-assemblies, and accessories onto cast iron parts to deliver complete products to industrial customers.
• Surface Treatment Services Surface treatments including painting, cataphoresis, galvanization, zinc plating, and thermal treatment with annealing capabilities delivered through a subcontractor network.
• Quality Control and Testing Services In-house quality control and testing at each manufacturing stage using thermal analyser, spectrometer, image analyser, tensile testing machine, hardness testers (Vickers and Brinell), ultrasonic testing (COFREND II certified), 3D scanning, and coordinate measuring machine for industrial castings customers.
• Co-Design and Re-Design Engineering Services Personalized technical engineering support through the RAID team (Robotization, Assembly, Industrialization, Design Development), offering co-design, design to cost, and re-design services to optimize cast iron parts for industrial customers.

Quantifiable outcome

• More than 2500 tons of cast iron produced per year
• +3 more outcomes

Named customers3 records

Segments6 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Partnerships

One partnership is on record.

• Subcontractor Network for Surface TreatmentsminorOthersSIF works with a network of subcontractors for surface treatments including painting, cataphoresis, galvanization, and zingage. This network enables SIF to deliver finished parts with desired surface treatment specifications without in-house surface treatment capabilities.

Scale indicators5 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Gienanth GmbH: German family-owned iron foundry producing complex cast iron parts for machinery, drive technology, and industrial applications; directly comparable to SIF in product (iron castings), customer base (industrial OEMs), and mid-size European footprint.
• Castings PLC: UK-listed iron foundry group producing iron castings for automotive, construction, and industrial markets; comparable to SIF as a mid-size European iron foundry with a vertically integrated casting-and-machining offering.
• Eisenwerk Erla GmbH: German iron foundry specializing in cast iron components for industrial machinery, drive systems, and hydraulics; comparable to SIF in iron-casting process, weight class range, and B2B industrial customer profile.
• Waupaca Foundry Inc. One of the largest iron foundries in the US producing gray and ductile iron castings for automotive, agricultural, and industrial OEMs; comparable to SIF in core process (sand-cast iron) and end-market profile, though at materially larger scale.
• Halberg Guss GmbH: German iron foundry producing cast iron components for automotive, commercial vehicle, and industrial applications; comparable to SIF as a similarly scaled European iron foundry serving industrial OEM customers with sand-cast components.
• Fonderie de Brousseval: French iron foundry producing cast iron components for industrial applications; a direct French-domestic peer to SIF in iron casting process, weight class, and industrial B2B customer base.

Broad incumbents

• Georg Fischer AG: Swiss-listed industrial group with a significant iron and steel casting business serving automotive, industrial, and water-management markets; comparable to SIF as a foundry incumbent in the same European industrial customer base, though operating at substantially larger scale and broader portfolio.

Regional players

• Le Belier SA: French-listed foundry group producing cast components for automotive and industrial customers from European plants; comparable to SIF as a French-based foundry serving similar industrial customers, though primarily focused on aluminum rather than iron castings.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInfr.linkedin.com/company/sifsocieteindustrielledesfontes

Compliance8 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

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 CAST IRON INDUSTRIAL COMPANY