As a family-managed company, we offer you the complete service from the initial idea through to series.
We are so small that we can react extremely flexibly,
but can also perform large enough complex assemblies including assembly and logistics.
Together with our development partner, we can provide you cheap tools from China,
but also offer Hi Tech tools from Germany and Europe.

Anterior us
We will find a solution

Injection and blow moulding plastic parts
Metal machining

The Heinz graves GmbH is a small company in 71397 people stream and produces molded rubber products and rubber-metal connections for reputable companies in the engineering, automotive and medical.

According to drawings or samples we produce parts from all elastomers in various manufacturing techniques such as printing presses and transfer presses.

From about 2000 different compounds, we can offer you the optimum solution for all types of rubber molded articles.

Our partners and suppliers is the rubber plant Kraiburg GmbH & Co.

Participation in the development

Working with your engineers and technicians, we develop tailor-made parts in order production, change and vary until the parts meet all special requirements.

Assistance in material selection and design of components.

We are your partner when it comes to the mass production of larger numbers but also when small quantities or one-off productions are in demand.

Our dedicated, experienced and motivated employees are the key to our success and our guarantee of good quality.

Thanks to our lean operating structure, a fast and flexible order processing is possible.

The main customers are industrial clients in engineering and have decades of customer base of Heinz graves GmbH.

Our core competence is the development, production and international distribution of plastic parts manufactured by the injection molding and rotation process.

Advanced Plastics Solutions

Hesse Thermoforming is one of the leading providers of complex plastic products and solutions for thermoforming.

As a specialist in the development and manufacture of advanced and complex thermoforming plastic parts we offer our customers a full service. From design and development to production to complex logistics services. Our customers benefit from over 40 years experience in plastics processing. We provide intelligent solutions, tailored to the individual and specific needs and manufacturing applications of our customers.

As an efficient partner for your success, HEWI offers broad-based expertise along the whole route to your product, from the initial development through to series production.

Your vision: From the design to the series product
• Starting with a model or a drawing
• Transfer into our 3D system – Siemens NX / CATIA
• Design of the product as an economic injection moulding
• Rapid prototyping
• Material selection and testing, strength calculations
• Working through requirements specifications – preparation of performance specifications
• Design FMEA

Your requirements: Comprehensive project planning
• Definition of all specific characteristics, requirements and quality objectives
• Preparation of a production plan: Logistics from raw material through to delivery
• Advance quality planning, process FMEA, test & inspection planning
• Definition of all resources, supplies and auxiliaries required
• Purchasing, installation, enabling, training, process validation • Comprehensive project management: Customer requirements, scheduled dates/deadlines, costs

Injection moulds
• Fill analysis with Mold Flow: analysis of weld lines and stresses
• Selection of the ideal mould concept
• Thermal analysis of the product: distortion and dimensional stability
• Mould design in 2D and 3D
• Definition of the required process monitoring: sensors and scanning systems such as HB-Therm Flow or Kistler pressure sensors • Mould production in Germany or with worldwide partners • In-house mouldmaking
From the preliminary sample through to series production
• Product support from the first-off tool parts until handover to series production: tests, samples, changes, assembly trials, automation
• Verification of process capability
• Comprehensive testing options due to in-house laboratory and measurement & test room
• Revision of the process FMEA: Feedback to the design phase
• Clearing and start of series production: Presentation of the initial samples with test reports

Company facts & figures
• More than 70 injection moulding machines: 22 to up to 1600 to (DEMAG, Ferromatik, Arburg, Engel, Krauss-Maffei)
• 550 employees
• Our own brand products and manufacturing of different engineering plastic products • Automation: articulated robots, linear equipment, dying equipment, driers, assembly lines and assembly machines
• Production methods: standard injection moulding, 2 and 3-component technique, mono sandwich, gas injection technique, moulding in inserts made of steel, plastic or electronic parts, in-mould decoration of films using the „SKIN LINE“ process
• Production of high-quality surfaces: painting/enamelling, electroplating and coating with partner companies
• Assembly of subassemblies, welding of plastic products, printing and assembling through to the finished sales packaging
• Delivery to the customer: Use of different container systems and worldwide delivery

Certified quality
• Certified by EN ISO 9001:2015
• Environmental management by EN ISO 14001:2015
• Medical devices by EN ISO 13485:2016
• Energy management by EN ISO 50001:2011

HEWI Heinrich Wilke GmbH
Bereich Kunststofftechnik
Hagenstr. 2 | 34442 Bad Arolsen-Mengeringhausen | Tel.: +49 5691 82-735 | Fax: +49 5691 82-712 | info@hewi.de | www.hewi.com

Development, prototypes & small series
The Hintsteiner Group is a leading manufacturer of prototypes and small series made of plastic and fiber composite materials (carbon). Due to our many years of experience in the areas of automotive, motorsport, defense technology and industry, we can offer you comprehensive know-how and a high level of competence.

Our company for more than 40 years is of high quality tools and injection-molded parts, because your claims deserve quality. From concept, through mold to mass production.

ABOUT US

25 employees
which 4 trainees
Tooling - Plastics Processing - Subcontracting
about 1500m² production area
generous storage facilities
CAD-CAM systems Unigraphics NX, ME10 OneSpaceDesigner and PEPS
CNC milling machines from DMG and Mikron
Wire EDM machines from AGIE
EDMs of AGIE and Zimmer + Kreim
CNC lathe of nuclear
Grinders from Jung and Elf
Injection molding machines from Arburg

High quality and durable tools are the result of years of experience that have come to appreciate our customers in the automotive, electrical and household goods industries as well as the environmental, medical and packaging technology. Both injection molds (multicomponent) as well as in press tools and MIM (Metal Injection Moulding), we are your partner! Our highly trained and trained staff set for you to to always modern equipment what you expect from a modern tool! In our plastic processing, we can test the tools for you extensively, and if you want, also happy to produce zero, small and large series!

Through exclusive specialisation in products made of flexible materials such as rubbers and TPEs, Hoogerdijk wants to be your most economical out-sourcing partner for engineering, sourcing and logistics .

We systematically focus on improving production facilities, materials and their applications. For the industry, Hoogerdijk is a knowledge partner who can initiate and assess product design and lay down material specifications and production criteria. Hoogerdijk also takes care of production, with reproducible quality and costs as the most important parameters. From customer concepts to total solutions: we monitor the entire process from design through production upto and including delivery. Our flexible working process recognises strengths and weaknesses and brings production into line with the changing needs of our customers. We export more than 20% of our products.

We increasingly focus on international market developments and cooperation in the field of production and logistics. Here as well, Hoogerdijk aims to be your specialised co-partner of choice.

Products made of flexible materials such as rubbers and TPEs; such as:
seals, punched gaskets, extruded profiles, moulded parts, protective bellows, impact protections, vibration isolators, buffers, silencers, formed hoses etc.