Production of copper casting alloys to customer material standards, lead battery recycling and non-ferrous metal trading in Oberhausen.
F. W. Hempel Legierungsmetall GmbH
OberhausenNew on Amplifa
About HEMPEL Legierungsmetall
F. W. Hempel Legierungsmetall GmbH is a non-ferrous metals company founded in 1966 with its production site in Oberhausen. Its core business is ingot production: the company melts pre-materials and scrap in rotary drum and induction crucible furnaces and produces copper casting alloys to the material standards of its customers. The cast ingots, format 360 x 90 x 60 mm with a unit weight of 10–13 kg, are delivered on Euro exchange pallets up to a maximum net weight of 1200 kg; every delivery comes with a works inspection certificate. Further business areas are the recycling of lead-acid and Ni/Cd batteries via an approved waste intermediate storage facility as well as non-ferrous metal trading, which accepts, sorts and processes metal scrap around copper, brass and aluminium for environmentally sound recovery. Customers are renowned copper alloy foundries in Germany and Europe. The company is certified to ISO 9001:2015 and recognised as a certified waste management specialist company under § 56 KrWG.
- Site
- Oberhausen
- Processes
- Production of copper casting alloys (ingot production to customer material standards), Melting operations / alloy production to customer requirement, Lead battery recycling (collection/recovery of lead-acid and Ni/Cd batteries, waste intermediate, Non-ferrous metal trading (acceptance, sorting, processing, recovery of non-ferrous metal scrap), Testing / issuance of works inspection certificates, Production of copper casting alloys (ingot production to customer specification), Lead battery recycling (waste intermediate storage facility for lead-acid and Ni/Cd batteries), Non-ferrous metal trading (acceptance, sorting, processing and recovery of non-ferrous metal scrap)
- Materials
- Copper casting alloys, Tin bronze, Gunmetal (red brass), Brass, Aluminium, Copper, Lead, Nickel / nickel-containing raw materials
- Certificates
- ISO 9001:2015, Certified waste management specialist company, Certified waste management specialist company (§ 56 KrWG)
- Founded
- 1966
- Industries
- Non-ferrous metal foundries (copper alloy foundries), Metal recycling
- 01
Acceptance and sorting of non-ferrous metal scrap and pre-materials
- 02
Melting in rotary drum or induction crucible furnaces
- 03
Alloy production to customer material standard
- 04
Casting of ingots (360 x 90 x 60 mm, 10–13 kg)
- 05
Cooling via cooling plant
- 06
Packaging on Euro exchange pallets
- 07
Issuance of works inspection certificate
- 08
Delivery
Materials and Processes
Copper alloys
Basis of ingot production, carried out predominantly to the material standards of the foundry customers.
Tin bronze
Historically the first trading activities from 1966 onwards; part of the delivery programme for foundries.
Gunmetal (red brass)
Alloy for non-ferrous metal foundries, traded since 1966 and today part of production.
Brass
Material for ingot production as well as a central trading material in non-ferrous metal trading.
Aluminium
Accepted and recovered non-ferrous scrap in metal trading.
Lead
Raw material of battery recycling; lead-acid and Ni/Cd batteries are collected and recovered for pre-material supply.
Nickel / nickel-containing raw materials
Import goods of the founding phase and a component of the raw materials business.
Locations
Oberhausen
DEProduction and administration site: melting operations Plant I and Plant II, battery recycling, non-ferrous metal
- Part weight / size
- Ingots 10–13 kg (360 x 90 x 60 mm)
- Lot size
- Pallets up to max. 1200 kg net weight
- Materials
- Copper alloys, tin bronze, gunmetal, brass, lead
- Rotary drum furnace (tiltable, 6 t, 2006)
- Rotary drum furnaces of various sizes
- Induction crucible furnaces (Plant II, 2015)
- Crucible furnaces
- Cooling plant
- Dust extraction system
- Ingot conveyor
- Waste intermediate storage facility for lead batteries
- Non-ferrous metals hall 1,600 m²
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Production of copper casting alloys (ingot production to customer material standards)Casting | – | 360 mm (ingot format) × 90 mm × 60 mm | 10 kg – 13 kg | max. 1200 kg net weight per pallet | Copper alloys, Tin bronze, Gunmetal, Brass |
| Melting operations / alloy production to customer requirementCasting | – | – | – | – | Copper alloys |
| Lead battery recycling (collection/recovery of lead-acid and Ni/Cd batteries, waste intermediateOther (recycling) | – | – | – | – | Lead, Lead-acid batteries, Ni/Cd batteries |
| Non-ferrous metal trading (acceptance, sorting, processing, recovery of non-ferrous metal scrap)Other (recycling/trading) | – | – | – | – | Copper, Brass, Aluminium |
| Testing / issuance of works inspection certificatesTesting | – | – | – | – | Copper alloys |
8 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Rotary drum furnace (RDF), tiltable, 6 tonnes | – | 1 | 6 t charge weight | 2006 | Oberhausen |
| Rotary drum furnaces of various sizes | – | – | – | – | Oberhausen |
| Crucible furnace | – | 1 | – | 1973 | Oberhausen |
| Crucible furnaces | – | 2 | – | 1975 | Oberhausen |
| Induction crucible furnace | – | – | – | 2015 | Oberhausen (Plant II) |
| Cooling plant | – | 1 | – | 2006 | Oberhausen |
| Dust extraction system | – | 1 | – | 2006 | Oberhausen |
| Ingot conveyor | – | 1 | – | 2006 | Oberhausen |
Additional services
Reference customers
Quality and Certification
Every delivery receives a works inspection certificate in accordance with customer requirements. The quality management system for the production of copper casting alloys is certified to ISO 9001:2015 (DEKRA).
| Evidence | Oberhausen |
|---|---|
| ISO 9001:2015 | |
| Certified waste management specialist company (§ 56 KrWG) |
History
- 1966
Foundation of "Nordische Metall- und Rohstoffgesellschaft, Bremen" by Friedrich Wilhelm Hempel sen.; import of nickel and nickel-containing raw materials, first trading activities with tin bronze and gunmetal.
- 1973
Conversion into "Roland Legierungsmetall" (Bremen) and establishment of the Oberhausen production site; start of production at the end of the year with one rotary drum furnace and one crucible furnace.
- 1975
Expansion of the facilities by 2 crucible furnaces.
- 2003
Reorientation of the company with new management and adapted company processes.
- 2005
Acquisition of all company shares by F. W. Hempel Metallurgical GmbH, Düsseldorf; Christian Hempel and Oliver Mai become managing directors.
- 2006
Commissioning of a tiltable 6-tonne rotary drum furnace with cooling plant, dust extraction system and ingot conveyor; end of scrap remelting in crucible furnaces after 33 years.
- 2011
Approval of the waste intermediate storage facility for lead-acid and Ni/Cd batteries.
- 2014
Start of operations of the non-ferrous metal trading department in a new 1,600 m² metal hall.
- 2015
Completion of Plant II in Oberhausen: 1100 m² melting hall with modern induction crucible furnaces and 1150 m² warehouse.
- 2021
50 years of melting operations in Oberhausen.