Heat sinks, electronics enclosures, TIMs, busbars and mechanical components for power electronics.
CTX Thermal Solutions GmbH
Nettetal (DE)New on Amplifa
Expertise in Thermal Management
CTX Thermal Solutions GmbH, based in Nettetal, manufactures heat sinks, cooling electronics enclosures, thermal interface materials (TIMs), busbars and mechanical components for the active and passive cooling of industrial power electronics. Depending on cooling performance, installation space and volume, a broad range of processes is used for heat sink production, including extrusion, die casting, cold impact extrusion, CNC machining, skived fins, bonding, vacuum brazing, friction stir welding and crimped fins. The materials used are predominantly aluminium and copper; in the field of mechanical components, steel, stainless steel, brass and engineering plastics such as PA, PC and POM in injection moulding are also used. The services include thermal simulation, prototype production, manufacturing to drawing, surface finishing, post-processing and complete logistics handling including consignment and safety stock warehousing. Customers come from industries such as power supplies, electromobility, drive and control technology, medical technology, renewable energies, mechanical and plant engineering, metrology and data centers. Founded in 1997, the company operates a logistics center in Nettetal with 1,800 m² of high-bay warehousing and supplies customers worldwide.
- Site
- Nettetal
- Processes
- Extrusion, Die casting, Cold impact extrusion, CNC machining (3- to 5-axis), Sheet metal stamping and bending technology, Skived fin process, Bonding (bonded fins), Brazing (vacuum brazing)
- Materials
- Pure aluminium AL1070, Pure aluminium AL1050, Pure copper CU1100, Pure copper CU1020, Cu-ETP, OF-Cu, EN AW 6060, EN AW 6063
- Certificates
- DIN EN ISO 9001:2015, DIN EN ISO 14001:2015, ISO 9001, ISO 14001
- Founded
- 1997
- Industries
- Power supplies, Electromobility, Drive and control technology, Medical technology, Agricultural technology, Renewable energies
- 01
Consulting & thermal simulation
- 02
Project engineering (CAD data, 3D models)
- 03
Prototype production
- 04
Manufacturing (extrusion, die casting, cold impact extrusion, CNC, sheet metal
- 05
Post-processing & surface finishing
- 06
TIM cutting & pre-assembly
- 07
Dimensional accuracy and tolerance inspection
- 08
Logistics incl. consignment/safety stock warehousing
Locations
Nettetal
DEHeadquarters with office, logistics center (high-bay warehouse) and production/sales
- Lot size
- Prototype to large series
- Materials
- Aluminium, copper, steel, stainless steel, plastics
- High-bay warehouse 1,800 m², 4,000 Europe pallets
- CNC machining 3- to 5-axis
- Sheet metal stamping and bending technology
- Injection moulding
- TIM die-cutting technology
Components
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| ExtrusionForming | – | – | – | – | Aluminium extrusion alloy, Pure aluminium, Pure copper |
| Die castingCasting | – | – | a few grams – several kilograms | – | Aluminium, Zinc, Magnesium |
| Cold impact extrusionForming | – | – | – | – | Pure aluminium (AL1070/AL1050), Pure copper (CU1100/CU1020) |
| CNC machining (3- to 5-axis)Machining | – | – | – | – | Steel, Copper, Aluminium, Plastic |
| Sheet metal stamping and bending technologyForming | – | – | – | – | Steel, galvanised steel, Aluminium, Stainless steel |
| Skived fin processMachining | – | – | – | – | Aluminium, Copper |
| Bonding (bonded fins)Joining | – | – | – | – | Aluminium, Copper, Epoxy resin (thermally conductive) |
| Brazing (vacuum brazing)Joining | – | – | – | – | Copper, Aluminium |
| Friction stir weldingJoining | – | – | – | – | Aluminium |
| Crimped (press-fitting of the cooling fins)Joining | – | – | – | – | Copper, Aluminium |
| Injection mouldingPlastics | – | – | 0,3 g | – | Polyamide (PA), Polycarbonate (PC), Polyoxymethylene (POM) |
| Busbar manufacturing (stamping, milling, deburring, bending)Machining | – | – | – | – | Cu-ETP, OF-Cu, EN AW 6060, EN AW 6063, EN AW 6082 |
| TIM die-cutting technology (cutting of thermal interface materials)Surface | – | – | – | – | Silicone (thermal pads), Gap fillers (silicone-containing/silicone-free), Graphite foils |
| Surface finishing (anodising, powder coating, wet painting, chromating)Surface | – | – | – | – | Aluminium, Copper |
| Post-processing (deburring, trowalising, grinding, brushing, polishing, sand/glass bead blasting)Surface | – | – | – | – | – |
| Marking (stamping, lasering, screen or pad printing)Surface | – | – | – | – | – |
| Thermal simulation / heat sink calculationEngineering | – | – | – | – | – |
| Prototype productionEngineering | – | – | – | – | – |
| Dimensional accuracy and manufacturing tolerance inspectionTesting | – | – | – | – | – |
| Lasering (laser engraving)Surface | – | – | – | – | – |
Additional services
Reference customers
Quality
Quality and environmental management are certified to DIN EN ISO 9001:2015 and DIN EN ISO 14001:2015 (Intertek). Inspection covers the dimensional accuracy and manufacturing tolerances of the produced components; a continuous improvement process ensures product quality and delivery reliability.
| Evidence | Nettetal |
|---|---|
| ISO 9001 | |
| ISO 14001 |
History
- 1997
Wilfried Schmitz founds Contrinex GmbH in Nettetal together with the Swiss company Contrinex AG and a silent partner (sales of sensors, knobs, electronics heat sinks).
- 1998
Operations begin at Lötscher Weg 78, Nettetal; sales of heat sinks from Aavid and Pada in the DACH region.
- 1999
First ISO 9001 certification.
- 2005
ISO 14001 certification.
- 2006
Purchase of a 5,700 m² site at Lötscher Weg 104.
- 2008
Occupancy of the company's own office and warehouse buildings.
- 2013
The sensors business division is spun off into Contrinex Sensor GmbH.
- 2014
Renaming to CTX Thermal Solutions GmbH.
- 2018
CI Electronics GmbH becomes a shareholder alongside Wilfried Schmitz.
- 2019
Construction of a logistics center with high-bay warehouse.
- 2021
Jens Mirau becomes second managing director.
- 2022
Founding of a subsidiary in China.
- 2024
Occupancy of a new office building (Energy Efficiency House 40 plus) with 600 m² of office space.