
Trading company for raw materials, chemicals and laboratory testing equipment for the rubber processing industry.

Avokal GmbH und Heinrich Heller GmbH
Wuppertal (Headquarters) · Hann. Münden · Rijswijk (NL)New on Amplifa
About us
Avokal GmbH and Heinrich Heller GmbH are trading companies in the third and fourth family generation respectively, based in Wuppertal, specializing in raw materials and chemicals for the rubber processing industry. The portfolio includes, among other things, vulcanization accelerators, anti-aging agents, fillers such as calcium carbonates, silicas, barium sulfates and carbon blacks, rubber-to-metal bonding agents, sulfur and sulfur preparations, resins, plasticizers, flame retardants and processing aids. In addition, the company offers custom accelerator blends (Avomix) in powder or batch form, packaged in EVA bags, laboratory testing equipment such as laboratory press, rheometer and tackiness tester (TackinessCheck), as well as sulfur dispensers. Customer industries include rubber and plastics processing, construction chemicals, water treatment and filtration technology, and road construction with asphalt modification. In addition to the headquarters in Wuppertal-Barmen, there is a site in Hann. Münden for national distribution and, since 2006, a sales office in Rijswijk, the Netherlands, serving the Benelux countries and Northern Europe.
- Site
- Wuppertal
- Processes
- Trading in raw materials and chemicals for the rubber processing industry, Laboratory testing equipment (laboratory press, TackinessCheck, rheometer), Sulfur dispensers, Custom accelerator blends (Avomix) in powder or batch form, packaged in EVA bags
- Materials
- Natural rubber (NR), SBR rubber, EPDM rubber, NBR rubber, BR rubber, IR rubber, CR rubber (chloroprene), IIR rubber (butyl)
- Founded
- 1927
- Industries
- Rubber processing industry, Rubber and plastics processing, Construction chemicals, Water treatment/filtration technology, Road construction (asphalt modification)
- 01
Procurement of raw materials and chemicals
- 02
Storage and picking
- 03
Application engineering consulting
- 04
Sales and logistics
Products and raw materials
Natural rubber
Rubber type for use with the supplied accelerators, anti-aging agents and fillers.
SBR rubber
Synthetic rubber for whose compounding the company supplies chemicals and preparations.
EPDM rubber
Frequently the carrier polymer of the Deltagran granules and target polymer for bonding agents and tackifiers.
NBR rubber
Target rubber for anti-aging agents, slip agents and rubber-to-metal bonding agents.
FKM rubber (fluoro rubber)
For bisphenol vulcanization, the company supplies calcium hydroxide as a reaction partner.
Calcium carbonate (CaCO3)
Micronized and coated calcites and limestone flours as fillers for various industrial sectors.
Silica (SiO2)
Reinforcing filler, whose activation is supported by filler activators such as Activin NT and Aktiol.
Barium sulfate (BaSO4)
Pure white baryte in various fineness grades as a filler.
Rubber powder (0–0.8 mm)
Obtained from recycled truck tires and used as a raw material for rubber products, asphalt modification and construction chemicals.
Corundum, blasting glass granulate and beads
Noble and normal corundum as well as glass granulates as blasting and filter media.
Locations
Wuppertal
DEHeadquarters of Avokal GmbH and Heinrich Heller GmbH
Hann. Münden
DESite National Sales
Rijswijk
NLSales office for Benelux and Northern Europe (since 2006)
Inside the production

Industries
6 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Laboratory press with automatic sample feed (sample holder) | – | – | – | – | – |
| Tackiness tester (tack) | TackinessCheck | – | – | – | – |
| Rheometer | Rheockeck MD-Drive | – | – | – | – |
| Homogenizer | – | – | – | – | – |
| Sulfur dispenser | – | – | – | – | – |
| Laboratory testing equipment | – | – | – | – | – |
Additional services
History
- 1927
Founding of the Heinrich Heller commercial agency in Wuppertal-Elberfeld by Heinrich Heller (01.08.).
- 1939
Relocation of the commercial agency to Wuppertal-Barmen, the companies' current seat (02.05.).
- 1956
Horst Heller, son of the founder, joins the company (01.07.).
- 1957
Conversion of the Heinrich Heller partnership into a limited partnership (02.05.).
- 1969
Heinrich Heller dies at the age of 69; Horst Heller becomes managing partner (23.10.).
- 1977
Founding of Avokal Füllstoff-Handelsgesellschaft mbH by Horst Heller (26.05.).
- 1984
Conversion of Heinrich Heller KG into a GmbH (28.06.).
- 1991
Björn Heller, grandson of the founder, joins the group of companies (01.04.).
- 1997
Thore Heller joins the group of companies (01.08.).
- 2001
Renaming of Avokal Füllstoff-Handelsgesellschaft mbH to Avokal GmbH (25.07.).
- 2006
Opening of a sales office in Rijswijk (Netherlands) for Benelux and Northern Europe (01.01.).
- 2022
Horst Heller dies at the age of 87 (13.01.); Tom Morris Heller joins the group of companies (01.06.).