Manufacturer of fine and ultra-fine copper enameled wires, self-bonding wires and high-frequency litz wires for the electrical and electronics industry.
HEERMANN GmbH
Hagen, DE (Barmerfeld 14, 58119)New on Amplifa
About HEERMANN
HEERMANN GmbH, based in Hagen (Westphalia), manufactures fine and ultra-fine copper winding wires with diameters from 0.036 mm to 1.32 mm. The product range includes single- and multi-layer enameled wires (up to 40 enamel coats), self-bonding wires, high-frequency litz wires (HEERSOLIT) as well as braided wires and strands. In addition, the company offers contract coating and contract braiding of wires made of precious metals, aluminium, brass, stainless steel, steel and resistance alloys as well as custom and special products manufactured to customer specification. Insulation is applied with polyurethane, polyesterimide, polyamideimide and polyimide enamels in temperature classes up to 240. HEERMANN's products are used primarily in the electrical and electronics industry. The company develops and builds its own machines, fixtures and test equipment, including a self-developed inline high-voltage fault-count test system, and records process data online. The HEERMANN GmbH is registered in the commercial register at the district court of Hagen under HR B 1436.
- Site
- Hagen
- Processes
- Manufacture of copper enameled wires (enameling of copper wire, up to 40 enamel coats), Manufacture of self-bonding wires, Manufacture of high-frequency litz wires (HEERSOLIT), twisting of enameled copper wires, Braiding of wires and strands, Contract coating/contract enameling of wires, Custom and special products to customer specification, In-house machine, fixture and test equipment construction, In-house development of inline high-voltage fault-count test system
- Materials
- Copper, Platinum, Gold, Silver, Aluminium, Brass, Stainless steel, Steel
- Certificates
- ISO 9001 (based on VDA 6), ISO 14001, ISO 50001, DNK reporting
- Founded
- 1900
- Industries
- Electrical and electronics industry
- 01
Copper wire as starting material
- 02
Multi-layer enameling (up to 40 coats)
- 03
Oven curing and film formation
- 04
Twisting into high-frequency litz wires
- 05
Braiding with natural silk, polyamide yarn or artificial silk
- 06
Inline high-voltage fault-count testing
- 07
Spool winding and shipping
Materials and Enamels
Copper Cu-ETP1
Standard conductor material for enameled wires and HF litz wires according to DIN EN 13602.
Copper Cu-OF1
Oxygen-free copper as conductor material according to DIN EN 13602.
Polyurethane insulating enamel
Temperature classes 155–200, solderable without stripping.
Polyesterimide insulating enamel
For thermally more demanding applications, optionally with a polyamideimide topcoat.
Polyamideimide insulating enamel
Single-layer enameling with temperature index up to 240.
Polyimide insulating enamel
Highest thermal resistance among the insulating enamels.
Natural silk, polyamide-6.6 yarn, artificial silk
Braiding materials for litz wires to increase dielectric strength.
Platinum, gold, silver
Contract coating of wires made of precious metals.
Aluminium, brass, stainless steel, steel, iron, resistance alloys
Wire materials suitable for contract coating beyond the standard product range.
Locations
Hagen
DEHeadquarters, production and sales
- Materials
- Copper, enameled wires, HF litz wires, contract coating
- In-house machine and fixture construction
- Inline high-voltage fault-count test system (in-house development)
- Online process data acquisition and visualization
Products
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Manufacture of copper enameled wires (enameling of copper wire, up to 40 enamel coats)Surface | – | – | – | – | Copper, Polyurethane enamel, Polyesterimide enamel, Polyamideimide enamel, Polyimide enamel |
| Manufacture of self-bonding wiresSurface | – | – | – | – | Copper |
| Manufacture of high-frequency litz wires (HEERSOLIT), twisting of enameled copper wiresForming | – | – | – | – | Cu-ETP1, Cu-OF1, Alloy, pure metal and bimetal wires, Natural silk, Polyamide-6.6 yarn |
| Braiding of wires and strandsForming | – | – | – | – | Natural silk, Polyamide yarn, Artificial silk |
| Contract coating/contract enameling of wiresSurface | – | – | – | – | Platinum, Gold, Silver, Aluminium, Brass, Stainless steel, Steel, Iron, Resistance alloys, Alloys |
| Custom and special products to customer specificationEngineering | – | – | – | – | – |
| In-house machine, fixture and test equipment constructionEngineering | – | – | – | – | – |
| In-house development of inline high-voltage fault-count test systemTesting | – | – | – | – | – |
1 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Machine, fixture and test equipment construction (in-house production/development) | – | – | – | – | Hagen |
Additional services
Quality
Quality management is certified according to ISO 9001 (based on VDA 6). A self-developed inline high-voltage fault-count test system as well as online process data acquisition and visualization ensure product quality.
| Evidence | Hagen |
|---|---|
| ISO 9001 (based on VDA 6) | |
| ISO 14001 | |
| ISO 50001 | |
| DNK reporting |
History
- 1900
Founded as “Märkische Metalldrahtumspinnerei Friedrich Heermann”
- 2023
First sustainability report according to DNK