Manufacturer of refractory building materials and specialty products for steelworks, blast furnace plants and foundries
Bernhard Jacob GmbH
Völklingen-Ludweiler · SchifflangeNew on Amplifa
About Bernhard Jacob
Bernhard Jacob GmbH was founded in 1950 in Völklingen-Ludweiler and remains family-owned to this day. Originally focused on sand extraction and the production of silicosis-safe blasting abrasives, the company developed—via the supply of moulding sands to the iron and steel industry—into a specialist provider of refractory building materials. The portfolio includes monolithically shaped components, unshaped refractory products such as ladle covering compounds, gunning masses, refractory concretes and ramming masses, as well as products for converters, electric furnaces, casting, transport and treatment ladles, RH units, torpedo ladles and tundish runners. Production takes place at the Völklingen site on fully electronically controlled production systems, complemented by an in-house milling and classification plant for raw material preparation and large raw material storage capacities. Product development is carried out jointly with customers, supported by an in-house laboratory that controls and monitors the entire manufacturing process. The group of companies includes Jafesa GmbH (mould making, plant engineering, maintenance) and Bernhard Jacob Lux S.A. (blast furnace plants and, since 2020, foundries).
- Site
- Völklingen-Ludweiler
- Processes
- Manufacture of refractory building materials (refractory products), Manufacture of monolithically shaped components, Ladle covering compounds and gunning masses, Refractory concretes, Ramming masses, Milling and classification plant (raw material preparation), Installation of refractory products (lining), JACOCAST – vibration casting masses (lining of the hearth, pressure siphon, runner, forehearth of
- Materials
- Blasting abrasives, Quartz sands, Moulding sand, Specialty sands for the steelworks sector, Refractory building materials / refractory raw materials, Blast furnace products (LUX), Blasting abrasives / quartz sands, JACOCAST – vibration casting masses
- Certificates
- DIN EN ISO 9001:2015, ISO 14001:2015, ISO 45001:2018, ISO 50001:2018, ISO 9001:2015
- Founded
- 1950
- Industries
- Iron and steel industry, Foundry industry, Blast furnace plants
- 01
Raw material preparation (milling and classification plant)
- 02
Product development in the in-house laboratory
- 03
Manufacture of the refractory products
- 04
Quality control
- 05
Installation/lining at the customer's site
Materials & Processes
Moulding sand
Supply product through which the first contacts with the iron and steel industry arose from the 1950s onwards.
Specialty sands for the steelworks sector
Specialty sands for applications in the steelworks, produced since 1972.
Blasting abrasives / quartz sands
Silicosis-safe blasting abrasives and quartz sands formed the core of early production.
JACOCAST – vibration casting masses
Lining of the hearth, pressure siphon, runner, forehearth of the cupola furnace as well as ladles and slag pots.
JACOFLOW – self-flowing casting masses
Enable simplified and uncomplicated installation of aggregates.
JACORAM – semi-plastic ramming masses
For basic linings as well as cold and hot repairs, with increased resistance to slags and metals.
JACOGUN – gunning masses
For maintaining the refractory lining, applicable using both conventional gunning and plastic application methods.
JACOVIB – dry vibration masses
For the lining of induction crucible and induction channel furnaces.
Locations
Völklingen-Ludweiler
DEProduction and administration
- Materials
- Refractory building materials, specialty sands, blasting abrasives, quartz sands
- Milling and classification plant
- Fully electronically controlled production systems
- Systems for different installation techniques
- Laboratory
Schifflange
LUSales and application for blast furnace plants & foundries (Bernhard Jacob Lux S.A.)
- Materials
- Blast furnace products, refractory products for foundries
Products
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Manufacture of refractory building materials (refractory products)Casting | – | – | – | – | Refractory raw materials |
| Manufacture of monolithically shaped componentsCasting | – | – | – | – | Refractory |
| Ladle covering compounds and gunning massesCasting | – | – | – | – | Refractory |
| Refractory concretesCasting | – | – | – | – | Refractory |
| Ramming massesCasting | – | – | – | – | Refractory |
| Milling and classification plant (raw material preparation)Engineering | – | – | – | – | Refractory raw materials |
| Installation of refractory products (lining)Assembly | – | – | – | – | Refractory |
| JACOCAST – vibration casting masses (lining of the hearth, pressure siphon, runner, forehearth ofCasting | – | – | – | – | Refractory |
| JACOFLOW – self-flowing casting massesCasting | – | – | – | – | Refractory |
| JACORAM – semi-plastic ramming masses (basic lining, cold and hot repairs)Casting | – | – | – | – | Refractory |
| JACOGUN – gunning masses (conventional gunning method and plastic application method)Surface | – | – | – | – | Refractory |
| JACOVIB – dry vibration masses (lining of induction crucible and induction channel furnaces)Casting | – | – | – | – | Refractory |
| Construction of the moulds for refractory production as well as plant engineering and maintenanceEngineering | – | – | – | – | – |
| Laboratory and management control of manufacturing / product developmentTesting | – | – | – | – | – |
3 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Milling and classification plant | – | – | – | – | Völklingen-Ludweiler |
| Fully electronically controlled production systems (computer-controlled) | – | – | – | seit 1980 | Völklingen |
| Systems for different installation techniques | – | – | – | – | Völklingen |
Additional services
Quality
Manufacturing at the Völklingen site is completely controlled and monitored in an in-house laboratory; since the 1990s the quality management system has been accompanied by audits from steelworks and has been extended to cover environment, occupational safety and energy.
| Evidence | Völklingen-Ludweiler |
|---|---|
| ISO 9001:2015 | |
| ISO 14001:2015 | |
| ISO 45001:2018 | |
| ISO 50001:2018 |
History
- 1950
Founded by Bernhard Jacob (1923–2001) in Völklingen-Ludweiler; family-owned to this day
- 1950er
First contacts with the iron and steel industry through the supply of moulding sands
- 1970er
Joined the Güteschutzvereinigung Saar e.V.; in 1972 production of specialty sands for the steelworks sector began
- 1980
Start of increased investment in electronically controlled production systems and development
- 1990er
Audits by steelworks; expansion of the product range to refractory products
- 1995
Start of investments in environmental and social standards
- 2005
Founding of Bernhard Jacob Lux S.A. for the field of blast furnace plants
- 2020
Bernhard Jacob Lux S.A. enters the foundry sector
- 2022
First sustainability report of the group of companies