Manufacturer of refractory ceramic products: furnace construction, kiln furniture, glass industry and unshaped products (Monolithics)
VGT-DYKO GmbH
Großalmerode (Headquarters) · Rommerode (Production plant)New on Amplifa
About VGT-DYKO
VGT-DYKO GmbH is a manufacturer specializing in refractory ceramics, headquartered in Großalmerode (Northern Hesse). The company produces ceramic products that are refractory, heat-resistant, fracture-resistant and wear-resistant, including products for general furnace construction, kiln furniture, components for the glass industry as well as unshaped products such as mortars, cements, refractory castables, casting compounds and patching compounds. Manufacturing covers the entire process, from material preparation in 10 separate mixers, via shaping (hand ramming, hydraulic pressing, vibration pressing, vibration and slip casting), computer-controlled drying and firing at up to 1,800 °C, to finishing by drilling, grinding and cutting. The material range includes silicon carbide (SICA), fireclay (HASSIA), corundum (DINIX), mullite (MULLIDUR), sillimanite (SILIDUR), zircon mullite (DYKODUR), cordierite, lightweight refractory materials (SUPO) and fused silica (Vitrodur). Customers come from the glass industry, steel industry, waste incineration, energy generation, chemical and petrochemical industries, furnace construction, carbon black reactors and the reactor industry. With an in-house laboratory equipped with testing apparatus and its own in-house mould-making team (joinery and metalworking shop), VGT-DYKO covers development and production entirely in-house and supplies, via international partners, among others to Turkey, the Middle East, the USA, the Czech Republic and
- Site
- Großalmerode
- Processes
- Hand ramming, hydraulic pressing, vibration pressing, vibration casting processes (casting), slip casting, Drying in computer-controlled drying systems, Firing at up to 1,800°C, Drilling (finishing of fired products)
- Materials
- Silicon carbide materials SICA, Fireclay materials HASSIA, Corundum materials DINIX, Mullite materials MULLIDUR, Sillimanite materials SILIDUR, Zircon mullite / zircon sand DYKODUR / ZIRKODUR, Lightweight refractory materials SUPO, Cordierite materials
- Certificates
- ISO 9001
- Industries
- Glass industry, Steel industry, Waste incineration, Energy generation, chemical industry, petrochemical industry
- 01
Raw material incoming goods inspection
- 02
Preparation/mixing of production compounds (10 separate mixers)
- 03
In-house mould making (joinery and metalworking shop)
- 04
Shaping: hand ramming, hydraulic pressing, vibration pressing,
- 05
Drying in computer-controlled drying systems
- 06
Firing at up to 1,800 °C
- 07
Finishing: drilling, grinding, cutting
- 08
Quality control and in-house laboratory
- 09
Packaging and logistics
Locations
Großalmerode
DEHeadquarters and production
- Part weight / size
- up to 1,000+ kg (casting)
- Lot size
- One-off pieces to series production
- Materials
- SICA, HASSIA, DINIX, MULLIDUR, SILIDUR, DYKODUR/ZIRKODUR, SUPO, cordierite, Vitrodur, castables
- 10 separate mixers
- Hydraulic presses
- 6 vibration presses
- Computer-controlled drying systems
- Firing units (kilns up to 1,800 °C)
- In-house mould making: joinery
- In-house mould making: metalworking shop
- Testing apparatus in the in-house laboratory
Rommerode
DEProduction plant
Products
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Hand rammingForming | – | – | – | small quantities | Silicon carbide (SICA), Fireclay (HASSIA), Corundum (DINIX), Mullite (MULLIDUR), Sillimanite (SILIDUR), Lightweight refractory (SUPO), Cordierite, Zircon mullite (DYKODUR), Zircon silicate (ZIRKODUR), Fused silica (Vitrodur) |
| hydraulic pressingForming | – | – | – | series production | Silicon carbide (SICA), Fireclay (HASSIA), Corundum (DINIX), Mullite (MULLIDUR), Sillimanite (SILIDUR), Lightweight refractory (SUPO), Zircon mullite (DYKODUR), Fused silica (Vitrodur) |
| vibration pressingForming | – | – | – | – | refractory ceramic compounds |
| vibration casting processes (casting)Casting | – | – | 1000+ kg | – | zircon mullite, zircon casting compound, refractory ceramic compounds |
| slip castingCasting | – | – | – | – | refractory ceramic compounds |
| Drying in computer-controlled drying systemsHeat treatment | – | – | – | – | – |
| Firing at up to 1,800°CHeat treatment | – | – | – | – | – |
| Drilling (finishing of fired products)Machining | – | – | – | – | refractory ceramic materials |
| Grinding (finishing of fired products)Machining | – | – | – | – | refractory ceramic materials |
| Cutting (finishing of fired products)Machining | – | – | – | – | refractory ceramic materials |
| In-house mould making (joinery and metalworking shop)Engineering | – | – | – | – | – |
| Preparation/mixing of production compoundsEngineering | – | – | – | – | – |
| Quality control and testing (in-house laboratory, testing apparatus)Testing | – | – | – | – | – |
| Production of unshaped products (Monolithics: mortars, cements, refractory castables, castingCasting | – | – | – | – | Gopelit (conventional castables), LCC castables (Lisit, Crisal), zircon compounds, SiC patching compounds (Wesa SICA), lightweight refractory castables, DINIX/Hassia/SICA/Silidur mortars and cements |
8 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Mixers (separate mixers for material preparation) | – | 10 | – | – | Großalmerode |
| hydraulic presses | – | – | – | – | Großalmerode |
| vibration presses | – | 6 | – | – | Großalmerode |
| computer-controlled drying systems | – | – | – | – | Großalmerode |
| Firing units (firing kilns, up to 1,800°C) | – | – | – | – | Großalmerode |
| In-house mould making: joinery | – | – | – | – | Großalmerode |
| In-house mould making: metalworking shop | – | – | – | – | Großalmerode |
| Testing apparatus in the in-house laboratory | – | – | – | – | Großalmerode |
Additional services
Quality
Product quality is ensured through continuous internal and external control at defined inspection intervals. The in-house laboratory offers modern testing apparatus for research, development and quality control; in addition, VGT-DYKO cooperates with external certified testing institutes.
| Evidence | Großalmerode |
|---|---|
| ISO 9001 |
History
Foundation of the 'Vereinigte Großalmeroder Tonwerke' (VGT)
Construction of the plant in Rommerode (Northern Hesse)
Acquisition of the company DYKO
Acquisition by the Vesuvius Group
125th anniversary of the company
After being sold by the Vesuvius Group, VGT-DYKO is once again active in the market as an independent company and on a growth course
VGT-DYKO establishes its products within the glass industry
VGT-DYKO continues its strong growth course and invests over €2 million in new facilities