PLASTICS PROCESSING TECHNOLOGIES AND IN-HOUSE MACHINE ENGINEERING
OKE Group technologies and equipment
OKE Group GmbH is a German manufacturing group headquartered in Hörstel (Nobelstraße 7, 48477 Hörstel, Germany). It was founded in 1961 as Osnabrücker Kunststoff-Erzeugnisse by Rainer von der Heyde; the commercial register entry is Amtsgericht Steinfurt HRB 5859, contacts +49 5459 914-0 and info@oke-group.com. The group includes production and engineering companies in Germany: OKE Group GmbH and OKE Spritzgusstechnik GmbH in Hörstel, Hans von der Heyde GmbH & Co. KG, KKF Fels GmbH & Co. KG in Goslar, Wilhelm Schröder GmbH in Herscheid and OKE Automotive GmbH & Co. KG. Group sites are located in Germany, Portugal, Slovakia, Romania, Brazil, the USA, Vietnam, South Korea, Japan and China; the Asian production site is OKE Plastic (Zhangjiagang) Co., Ltd. in Zhangjiagang, Jiangsu province.
On this page we cover the group's technologies and the equipment for them: plastic extrusion and extrusion line peripherals, composites and pultrusion, injection moulding, metal-plastic hybrids, laser technology, assembly and automation, inspection stations, and moulds — design, repair, maintenance, requalification and relocation. A separate focus is the group's own machine engineering division Hans von der Heyde, active since 1953: mechanical and electrical design, assembly, PLC and robot programming, application engineering and technical support are all done in-house rather than outsourced. This is what distinguishes the group from an ordinary plastics processor: it builds its own machines for extrusion, laser operations, assembly and inspection.
We separate clearly what the manufacturer's official pages confirm from what they do not. Confirmed are materials and technology ranges: PP, PE, PP-TPE, ABS, PVC and technical PA and PET for extrusion; profile cross-sections usually up to 150 mm with tolerances to DIN 16941 or individually defined; up to four components inline; tube extrusion up to 20 mm; fibre is introduced straight into the granulate and composite profile wall thickness runs from 1 to 60 mm; moulding from 1K to 3K, parts from fractions of a gram to 9.5 kg and tolerances on individual parts down to ±0.005 mm; a 50–2000 t moulding range for the tool relocation service; laser operations with CO₂, fibre and UV lasers. Not confirmed, and therefore not claimed: machine model designations, their power ratings, dimensions and output, article and catalogue numbers, prices, lead times, payment and warranty terms, and certificates as existing. The manufacturer publishes no machine catalogue with specifications.
The manufacturer declares no official presence, dealers or representations in Russia or the CIS; there is no Russian language version of the site; no EAEU or TR TS certificates were found in the sources verified. Production sites in Asia are officially confirmed — China (Zhangjiagang, Jiangsu) and Vietnam (Da Nang), plus sales and service points in South Korea and Japan. The country of origin of a specific item is not disclosed for individual products: only the countries of the sites are stated.
Choose an OKE Group line
Below are the group's technology, equipment and service lines. Where information is confirmed by an official manufacturer page it is stated directly; where specifications are absent this is said as well, and such items are not presented as confirmed. The manufacturer publishes no machine models with power ratings, dimensions or output: confirmation goes by the specific task, the documentation and, where possible, the group's own tech centre.
OKE Group: technologies and in-house machine engineering
OKE Group GmbH is a German manufacturing group headquartered in Hörstel (Nobelstraße 7, 48477 Hörstel, Germany). It was founded in 1961 as Osnabrücker Kunststoff-Erzeugnisse by Rainer von der Heyde; the commercial register entry is Amtsgericht Steinfurt HRB 5859, and the official contacts are +49 5459 914-0 and info@oke-group.com. The group brings together production and engineering companies: OKE Group GmbH and OKE Spritzgusstechnik GmbH in Hörstel, Hans von der Heyde GmbH & Co. KG, KKF Fels GmbH & Co. KG in Goslar, Wilhelm Schröder GmbH in Herscheid and OKE Automotive GmbH & Co. KG. Group sites are located in Germany, Portugal, Slovakia, Romania, Brazil, the USA, Vietnam, South Korea, Japan and China. The technology portfolio covers plastic extrusion, composites, injection moulding, metal-plastic hybrids, laser technology, assembly and automation, plus engineering and quality management.
Start with the technology and the task: profile extrusion, moulded part, composite profile, hybrid component, laser operation, assembly or inspection station. For process equipment state the material, the size range and the required output; for tooling state the part and the volume. The manufacturer publishes no article numbers or catalogue codes, so the scope is confirmed for the specific task against the documentation.
Extrusion is the group's founding technology, established in 1961. Materials are PP, PE, PP-TPE, ABS, PVC and technical PA and PET. Profile cross-sections are usually up to 150 mm and tolerance fields follow DIN 16941 or are defined individually; a single line can run up to four components inline, and co-extrusion covers nonwoven, tapes and flock. Foaming is offered in physical and chemical versions with CO₂ and different Shore hardnesses. Tube extrusion runs from a few millimetres up to 20 mm. The peripheral equipment for these lines is built by the group's own machine engineering: cutting and punching modules, length measuring systems, the Schwenkarmwickler and Tellerwickler winder series, packaging and haul-off units, and the MA Generation standard.
To select a line or one of its units you need the material and the profile cross-section, the size range, the required speed and the take-off method: winding, cutting to length or laying. State separately whether co-extrusion, foaming or inline processing is required: cutting, plasma treatment, ultrasonic welding, printing. The line scope is confirmed against the task; the manufacturer publishes no specific models with output figures or dimensions.
The composite line works with glass, short and continuous fibres as well as natural ones: flax, sisal, kenaf and WPC. Fibre is introduced straight into the granulate rather than only laid into a finished profile. Continuous profiles are produced by pultrusion and pull-winding with wall thicknesses from 1 to 60 mm. Fibre inserts create a non-detachable bond with the moulding compound. The manufacturer gives material densities: hemp about 1.5 g/cm³, carbon 1.75, glass 2.55. The line is supported by an in-house tech centre with a braiding wheel and GFK moulding, which allows a design to be validated before series launch. Composite profiles are used where stiffness at low weight is required, as a replacement for metal elements.
To select a composite profile you need the load and stiffness requirements, the cross-section geometry, the weight limit and the operating conditions. State what drives the move to composite: replacing metal, reducing weight, dielectric properties or corrosion resistance. Fibre type and wall thickness follow the load; the manufacturer publishes no specific sections or article numbers, so confirmation goes by drawing.
The group has run injection moulding since 1990. It offers one- and multi-component moulding from 1K to 3K, parts from fractions of a gram up to 9.5 kg and tolerances on individual parts down to ±0.005 mm; for 2K parts KKF Fels states a maximum of 1.5 kg. Processing runs at several group companies, with KKF Fels, Wilhelm Schröder and OKE Spritzgusstechnik named as competence centres. Stamping is stated at up to 400 t (Schröder) and up to 250 t (household appliances), and the moulding range for the tool relocation service is 50 to 2000 t. Moulds are designed in SolidWorks, Siemens NX and PTC Creo, rheology is calculated in Cadmould® and simulation runs in VARIMOS®. Initial approval follows PPAP (AIAG) or PPF (VDA 2), with PPAP and EMPB documentation where required, including a CT dataset.
Selection needs the part or its drawing, the material, the weight, the required accuracy and the volume. State whether multi-component moulding, inserts, IMD/IML or contact overmoulding is needed and what level of approval documentation is required. Machines and competence centres are matched to the part: the 50 to 2000 t moulding range and stamping up to 400 t define the limits, but the manufacturer does not publish which specific machine runs a given item.
The hybrid line combines the group's own metal stamping with moulding. Three schemes are confirmed: Insert — moulded-in elements including threaded bushings and the company's own stamped parts; Outsert — a stamped metal base overmoulded with functional plastic elements; and Reel-to-Reel (Bandumspritzen) — moulding directly onto stamped strip from a reel with integrated cutting and bending. The competence centres are Wilhelm Schröder in Herscheid and OKE Spritzgusstechnik in Hörstel. The medical line shows the full chain: metal stamping, cleaning and surface preparation including ball burnishing, overmoulding of metal elements, assembly of shafts, magnets and contact springs, application of seals and dampers, cleaning, marking and functional checks with opening and closing cycles.
Selecting a hybrid component requires the whole assembly: the metal part carries strength and fastening, the plastic part carries geometry, insulation and function, and replacing only one of them usually does not work. State the pull-out and shear load, the sealing or conductivity requirements, and the metal material and thickness. The joining scheme — insert, outsert or reel-to-reel moulding — follows from the design.
The laser line covers cutting, welding, marking, ablation and perforation using CO₂, fibre and UV lasers of different power classes. Cutting ranges from degating to complex 3D geometries with thick walls. Marking includes DMC and traceability data, high-contrast black-and-white marks and an Error Correcting Code that remains readable when partially damaged. Diode laser welding is applied to headlamps, tail lights and engine-compartment parts, and paint ablation is a separate operation. The defining feature of this line is that the machines are built by the group's own engineering division, Hans von der Heyde, active since 1953: mechanical and electrical design, assembly, PLC and robot programming, and technical support.
Selecting a laser machine or operation needs the material and part geometry, the required operation (cutting, welding, marking, ablation, perforation), the wall thickness and the tolerance. For marking state the code format, the contrast and the conditions in which the mark must stay readable. For welding the material and the presence of an absorbing layer matter. The manufacturer publishes no specific models with power figures or dimensions, so the scope is confirmed against the task.
The assembly and automation line is built on modular, decentralised concepts. Data carriers are RFID, sensors use IO-Link, safety sensors run on EtherCAT and Profinet, with hybrid cables and connectors. Linear and articulated robots, peripherals, conveyors and machine vision systems are applied. The manufacturer lists the following services: pick-and-place in linear and robotic versions, palletising and depalletising, packaging lines, assembly and laser stations, ultrasonic and hot-gas welding, cutting, trimming, drilling, milling, CNC machining, functional, dimensional and leak checks, tensile testing, bonding, marking, laser engraving of part numbers, QR and Data Matrix, and jig and fixture making. The assembly machines and stations are built by the group's own engineering division.
Selecting an assembly or automation item needs the operation, the cycle time, the part range and the quality requirements: what is joined, by which method, and with what verification of the result. State the joining method — ultrasonic, hot gas, bonding, press-fitting, screwing, heat staking — and whether dimensional, leak or tensile checks must run in line. The level of automation and the station scope are confirmed against the task.
Hans von der Heyde GmbH & Co. KG is the group's machine engineering division, active since 1953, at Nobelstraße 7, 48477 Hörstel, telephone +49 5459 914-400. The company builds custom special-purpose machinery for assembly, cutting and laser technologies. Mechanical and electrical design, assembly, PLC and robot programming, application engineering and technical support are all done in-house. Some machines are offered as standardised modular systems, others fully custom; machine rental is also stated for long-term trials and for periods of capacity shortage, with service hours Monday to Friday, 7:00 to 17:00. The manufacturer states 70 years of extrusion experience and 25 years in laser technology — these are periods of activity, not an installed base figure.
Ordering a machine or line requires the operation, the part or profile, the cycle time and quality requirements, plus constraints on floor space and integration with existing equipment. State whether a standardised modular system or a fully custom solution is needed, and whether robot programming and interfacing with your control system are required. The manufacturer publishes no exact models, power figures or dimensions.
Extrusion line peripherals are a separate equipment class of the group. The confirmed scope: cutting and punching modules, length measuring systems, winding units, packaging, laying and haul-off units. Winders are named by series: Schwenkarmwickler in semi-automatic versions and with automatic spool change, with a cardboard interleaf for deformation-sensitive profiles; Tellerwickler for hoses. The MA Generation standard is described as a modular system with cutting modules: saw, blade cut and punching tool. Such peripherals are built by the group's own machine engineering, that is for a specific line rather than bought ready-made from a third party.
Selecting peripherals needs the profile or hose, the material, the size range and the line speed, plus the take-off method: spool winding, cutting to length, punching or laying. For deformation-sensitive profiles state separately whether an interleaf and automatic spool change are needed. The module scope is confirmed against the line; the manufacturer publishes no model range with specifications.
The group's inspection line is described as inline solutions: optical inspection with one-second gauging of small parts such as O-rings, washers and connectors; electrical testing; pressure testing with a stated 100 % pressure check; leak and strength testing; acoustic analysis; and automated measuring stations. A 100 % visual check of polished surfaces is named separately in the medical line. Quality management is built on a CAQ programme with the modules APQP, FMEA, EMPB, PPAP, WEP, SPC, WAP, Audit, 8D and PMV, linked to ERP and machine data collection. Inspection uses coordinate measuring machines, optical scanners, 100 % AI camera inspection, computed tomography and X-ray.
Selecting an inspection station needs the part, the characteristic to be checked and the tolerance: dimension, tightness, pressure, strength, electrical parameters or a surface defect. State the required level — sampling or 100 % check — and the cycle time at which the station must run in line. The station scope and measurement method are confirmed against the part; the manufacturer publishes no specific models.
Tooling is a separate service line with a directly confirmed wording: Werkzeugreparaturdienst, Wartungsdienst, Ersatzteilfertigung — mould repair, maintenance service and manufacture of spare parts for moulds. In addition the company takes existing moulds into service, including requalification, modernisation and retrofit. A separate tool relocation service is described as an eight-step process, with a moulding range of 50 to 2000 t. Moulds are designed in SolidWorks, Siemens NX and PTC Creo, rheology is calculated in Cadmould® and simulation runs in VARIMOS®. This line is useful when the customer already owns a mould that needs restoration or transfer to another machine.
A quotation needs the mould or part drawing, photographs of the damage, the steel grade and heat treatment, and details of the machine the mould runs on or will run on. State what is required: repair, maintenance, spare part manufacture, requalification, retrofit or relocation. If no documentation exists, the item is confirmed by measurement and inspection.
The group's engineering line covers VA/VE, rapid prototyping and quality management. VA/VE is described as a method for optimising design, processes and cost: filling, cooling, shrinkage and warpage simulations are named, along with material comparison, replacing aluminium castings with filled plastics and reducing metal thickness through stiffening ribs. Rapid prototyping covers FDM, SLA, DLP with a stated rate of up to 1 cm/min along the Z axis, and SLS including undercuts without supports; EVT, DVT and PVT validations run with FMECA and FAI protocols and a zero series. Quality management relies on a CAQ programme with the modules APQP, FMEA, EMPB, PPAP, WEP, SPC, WAP, Audit, 8D and PMV, and on testing: tensile, bending, Shore D hardness, density, 3D gauging, burst pressure and helium leak testing.
Engineering is used when no off-the-shelf part exists and the item must be designed for the assembly. A quote needs the function of the part, the operating conditions, weight and size limits, the required service life and the volume. State whether a prototype is needed, which validation is required and what level of quality documentation is expected. The manufacturer's percentage savings claims for VA/VE are not carried over to a specific task here.
The group's Chinese production site is OKE Plastic (Zhangjiagang) Co., Ltd., in Zhangjiagang, Jiangsu province: Hengfeng Road, Economic Development Zone, Jiangsu Province, Zhangjiagang City, Suzhou City 215699, telephone +86 512 58 10 56 90. According to the official page the site is among the most technologically diverse in the group: moulding methods, assembly, inspection and automation are stated, along with a strong position in LED profiles for vehicle interior and furniture lighting. The official group history dates the China development to 2005. For the Asian region this is the group's main production point: it sits closer to material suppliers and local OEMs than the European plants.
If your project works with the Asian region, state this separately in the request: the Zhangjiagang site is a production facility and part of the range can be confirmed against it specifically. Describe the item, the material, the size and the required volume. The manufacturer does not publish the exact capability list of the site for a given item, so the scope is confirmed against the task.
The group's technologies are applied in several industries named on the official site. Automotive: interior, exterior and structural components including trim, noise insulation, interior lighting, hybrid parts, guide tubes, wheel arch liners, underbody protection, thermal and fluid management, on-board electronics and high-voltage connectors. Medizintechnik: components for infusion and drug-delivery systems, profiles, hoses, catheter components and seals. Haushaltstechnik: parts and assemblies for washing machines, dishwashers and refrigerators, including IMD and IML and automated assembly of units. Gebäudetechnik: HVAC, sanitary and water treatment, flow regulators, valves, actuators and pumps, plus furniture and clip systems. Elektronik: hybrid parts with inserts and metal bases with moulded elements, and very thin stamped grids in a continuous process. Möbeltechnik and Bikes are named as well.
The industry sets the requirements rather than selecting the product: in automotive, tolerance and traceability matter; in medical, hygiene and inspection; in household appliances, volume and automated assembly; in building technology, corrosion resistance and service life. State the industry, the item and the industry requirements to be met. The manufacturer does not confirm compliance with specific industry standards on these pages.
Alongside equipment and technologies the group supplies parts that are consumed in operation. The confirmed scope: extruded profiles, Tiedown, Duoflex, Foamflex and LED profiles, Clip Strip, seals in TPE, TPV and soft PVC, TPU items and hoses, moulded parts, metal-plastic hybrid components, battery system components (spacers, holders, CCS, busbars, covers), medical components and mould elements. Spare parts for moulds are the one item where the manufacturer speaks of spare parts directly: Werkzeugreparaturdienst, Wartungsdienst, Ersatzteilfertigung. An essential caveat: the manufacturer publishes no spare parts catalogue with article numbers or dimension tables, so parts are selected by drawing or sample, not by number.
Parts can be requested together with equipment or separately, but always with a description: item type, material, dimensions, purpose and operating conditions. For a profile or seal the cross-section is the most valuable input; for a moulded part, a drawing or photographs from two sides. State whether this is a one-off replacement or a recurring need.
What is needed to select a technology or equipment
Start with the product and the material: what is being made, from which plastic, to what accuracy and in what volume. The technology follows. For extrusion: profile cross-section, materials and the number of components (the group states up to four inline), the need for co-extrusion with nonwoven, tapes or flock, foaming with CO₂ and inline processing — cutting, plasma treatment, ultrasonic welding, printing; and the take-off method: winding, cutting to length or laying. For moulding: the part or its drawing, weight, material, required accuracy, volume, whether multi-component moulding, inserts, IMD/IML or contact overmoulding are needed, and the level of approval documentation. For composites: load and stiffness, cross-section geometry, weight limits and the reason for moving from metal to composite. For hybrids: the whole assembly and the pull-out and shear loads. For laser operations: material, thickness, operation and the required contrast or mark depth. For assembly and inspection: the operation, the joining method, the cycle time and the characteristic to be checked with its tolerance. If the equipment already exists, its configuration, condition and the task are useful: repair, modernisation, unit replacement or transfer to another line.
Parts, tooling and what is not disclosed
Alongside equipment and technologies the group supplies parts and tooling. Confirmed parts: extruded profiles, Tiedown, Duoflex, Foamflex and LED profiles, Clip Strip, seals in TPE, TPV and soft PVC, TPU items and hoses, moulded parts, metal-plastic hybrid components, battery system components (spacers, holders, CCS, busbars, covers, housing parts), medical components and mould elements. Tooling is the one item where the manufacturer speaks of spare parts directly: Werkzeugreparaturdienst, Wartungsdienst, Ersatzteilfertigung — mould repair, maintenance service and manufacture of spare parts for moulds; in addition the company takes existing moulds into service with requalification, plus modernisation, retrofit and tool relocation as an eight-step process. What remains unconfirmed and is not claimed: the manufacturer publishes no catalogue of spare parts or machines with article numbers, model designations, dimension tables or specifications; prices, lead times, payment terms, warranty terms and availability are not disclosed; certificates, including EAEU and TR TS, were not found in the sources verified; and the country of origin per item is not disclosed — only the countries of the sites are stated. Specifications for a specific item are confirmed against the manufacturer's documentation during selection.
Send the technology, the product and the task
State what is required: a technology and line, a single machine or station, tooling and a mould, parts for equipment, or an engineering study of a part. Add the material, the size range, the required volume and the destination city, and where possible a drawing, a sketch or a photograph of a sample. We will state what is officially confirmed and what needs separate checking: the manufacturer publishes no machine models with power ratings or dimensions, there are no article or catalogue numbers, prices, lead times and payment terms are not disclosed, no EAEU or TR TS certificates were found in the sources verified, and no official dealers or representations in Russia and the CIS are declared.
