The Holzapfel Group specializes in surface finishing. As a reliable supplier to the automotive and manufacturing industries, we offer mainly corrosion-protective, decorative, organic and functional method for surface coating. The focus is on parts of medium and large series. In particular, in the decorative field, however, we also have a factory area for special requirements. Is coated in modern rack and barrel systems, with particular focus on lean, resource and environment friendly processes.

To our owner-managed, medium-sized group also Dekotec in meaning and Holzapfel Coating Westerburg GmbH (HCW) include in addition to the crab apple Metallveredelung GmbH in meaning and Herborner metal finishing in Herborn-Seelbach in Westerburg with a total of approximately 450 dedicated employees.

Our wide range of products ranging from electrolytic coatings such as Zn, Zn-Ni, Cu-Ni-Cr, Ag (technical silver, nickel silver) and Sn on electrolytic conversion / Anodic oxidation (anodizing) and Organic Coating Solutions as KTL and powder coatings to chemical deposition method (electroless nickel) and for the chemical treatment, suchB. impregnation (such as from sintered metals) or passivation / chromating and much more. The range of parts is very complex according to the different surfaces: from components from the engine compartment, brake and magnetic systems, chassis parts or housing in the lock area to sintered workpieces and many articles in the fields of electrical engineering (Great contacts, connectors), precision engineering and optical industry and the consumer industry . We include many well-known companies such as TRW, ZF and Bosch and their suppliers to our long-term, satisfied customers.

The Holzapfel Group is also involved in upstream and downstream activities around the surface coating. To include as polishing or annealing / heat treatments and services such as assembly, packaging or handling all logistics processes on the capabilities of the company. Through early involvement in development processes and the close cooperation with customers, we develop customized solutions again and again.

Our philosophy is qualified, customer-oriented service, from consultancy through design and construction to large-scale processing as a system supplier. With modern quality and environmental management systems, including ISO / TS 16949:2002 or the EU Eco Audit, our group is often the direct contact for new developments. We are also a member of the Trade Association Industrial Coaters Association (FIB).

Our product and service range at a glance:

Corrosion protective method:
- Zinc-nickel · Zinc-Iron · Zinc
- All procedures Chromium VI free, transparent or
- Black passivated, with or without sealing

Decorative process:
- Copper-nickel-chromium (light and black)
- Chrome mikroporig
- Velournickel · Anodizing in all colors
- Powder coating

Functional procedure:
- Electroless nickel silver · tin
- Chromate or passivate aluminum
- Blue pickling

About us

Our dynamic growing company was established in 2006. We are focused on metal processing orders mainly for OEM in automotive industry i.e. palettes and special palettes. Our products are utilized by leading OEM as MERCEDES-BENZ, BMW, AUDI, PORSCHE, MAN in their assembly operations. Our product line comprises of course also other types of steel structures including welded components, mouldings and components cut by flame (autogenous or plasma arc) as well.

We are reliable and responsible suppliers to all our business partners. With our deep and effective professional experience we try hard to deliver our customers always with the best possible result and exceed their expectations.

In the Gallery section you can find a proven track record of our successfully completed projects.

Products of HPS SK

Completed metal processing orders

Steel transportation elements (Palettes, Special palettes) for:

- Production of a model
- Pilot production
- Series/Mass Production

Welded structures
Welded components
Moldings
Flame cut elements
Turned components

Surfacing:

Painting
Zink coating
Galvanizing
Zink dipping
Powder coating

HSP Schwahlen GmbH was founded in 1945. From on 1951 the production had been focused on adapter and withdrawal sleeves being the basis of our current line. At the beginning of the eighties CNC production of goods having greater dimensions was introduced.

HSP supplies all main bearing manufacturers as well as the larger distributors. The standard production range on adapter and withdrawal sleeves, nuts and locking devices is completed by optional hydraulic assistance, abnormal metric inner diameter or complete inch-sized sleeves as well as all specialties based on customer specifications. Besides this we manufacture hydraulic nuts as well as precisely turned and milled thin-walled parts.

Since 2000 HSP is also manufacturing various kinds of cages for bearings from 100 - 4000 mm outer diameter in high quality, small lot sizes and variable material (brass, steel, bronze, aluminium, ...) according to customers requirements. In this segment we produce for all main bearing manufacturers.

In addition to the production know-how HSP has continuously improved quality, logistics and administration. This leads to the high level of quality, delivery conditions and service of HSP.

At our newly built production facility in Langenfeld, established in 2001 and in between extended several times, we manufacture with the latest technology including 3D-measuring equipment.

The certification of the quality management system based on DIN EN ISO 9001 and of the environmental management system based on DIN EN ISO 14001 by Lloyd's Register Quality Assurance Limited underlines the endeavour to achieve highest possible precision and satisfaction of our customers as well as the best possible environmental sustainability.

HSP product range

The HSP production programme covers adapter and withdrawal sleeves, nuts and locking devices with 130 mm up to 3000 mm outer diameter and approx. 600 mm in length. Besides the standard we offer the following:

• Sleeves with abnormal bores and threads, metric / inch dimensions, special materials, ...
• Production according to customer specification respectively to drawings
• Special surface treatment (e.g. phosphating)
• Longterm packaging
• Direct deliveries, global sourcing and other logistical add ons

Standards of the HSP production

• Adapter sleeves according to ISO 2982-1:1995 (-> DIN 5415:2009-05)
• Withdrawal sleeves acc. to ISO 2982-1:1995 (-> DIN 5416:2009-05)
• Nuts following ISO 2982-2:2001 (DIN 981:2009-05)
• Locking devices acc. to DIN 5406
• Any standard or recommendation of customers by drawing or text

Additional products

Cages for bearings with complex milling and drilling processes up to 1750 mm outer diameter processed in five axis. HSP is not limited to any design according to customer requirements. Most ferrous material can be machined (brass, bronze, steel, aluminium, etc.).

Know-how - know how
You have the idea, we'll do the rest:
We are your competent partner when it comes to outsourcing. From services such as design or individual processing steps to the complete production process from A to Z including pre-assembly. Just ask us!

Sales agency working together with highly qualified producers from Europe and Asia in following technologies:
- zinc/alu/magnesium diecasting
- investment casting
- cast iron/spheroidal cast iron
- sand casting /permanent mold casting
- alu extrusion
- alu/steel forging
- sheet metal processing /stamping
- injection molding
- turning + milling
- sintering + MIM

HUMMEL AG is a world-renowned manufacturer of cable glands, connectors, heating and plumbing products and customers turned parts with more than 350 employees.

Since its founding in 1948 HUMMEL enforced by entrepreneurial instincts and innovative technology to the markets of the world. Own locations in southern Europe, the Far East and South America are the logical consequence of our international growth. At the headquarters Waldkirch advanced technology of the machinery guarantee precise, flexible and efficient production with the highest quality and service for the customer.

Metal & Plastics Technology

The metals and plastics technology (MK) contains the complete production facilities of HUMMEL AG. Especially the HUMMEL products are manufactured according to ISO 9001:2000 On a production area of over 8,000 m²:

* Cable Glands,
* Circular Connectors,
* Vent valves, ....

These manufacturing facilities also allow for customized solutions. With our advanced machinery and equipment park and the know-how acquired over 60 years of metal and plastic processing, we produce customized special parts for other well-known manufacturers, such as from the Heizkreisverteilerbau, from the electronics and automotive supply industry, building musical instruments and from the Optoelectronics .

HUMMEL underscores not only its own product quality, but also offers the customer nor the HUMMEL quality for its own products.

The MK business currently employs over 120 employees.

The power spectrum of HUMMEL includes:

Materials:
Non-ferrous metals (brass, aluminum, nickel silver, bronze, etc.),
Automatic turning steels, stainless steels
Plastic (injection technology, bar stock)
Zinc die casting

Dimensions:
Multi-spindle ø 5 mm to ø 52mm
Single-spindle ø 8 mm to ø 100mm

Machinery Machining / Injection:
Ring Dreher (material from the ring) ø 0.5 mm - 5mm
CNC single-spindle ø 5mm - 100mm
Multi-spindle cam-controlled ø 5mm - 52mm
Multi-spindle CNC ø 8mm - 52mm
CNC lathe for machining chuck dia 160mm
Machining centers
Zinc die casting
Plastic injection molding machine (clamping force + parts by weight)
Vertical injection molding machine for molding of parts (washers)

Assembly:
complete assembly (Small and medium series)

Coating:
galvanic coating

We offer you 23 years of experience in our craft. We are a Berlin company and manufacture handmade designer glasses for our own brand. And almost everything from sheet metal to you. We offer you special engraving, precision laser cutting, 3D printing, decorative coating (PVD), sheet metal forming, plastic milling, assembly work, ultrasonic cleaning, cleaning and decorative radiation, 3 and 5-axis milling, high-gloss polishing, quality checks with product test, color measurement, layer thickness measurement, welding resistance DIN, abrasion resistance and documentation, as well as experts as contacts for prototypes or advice. We also have many years of experience with the materials metal, glass, acetate, all kinds of plastics and much more.

Quality prevails

With this knowledge, we have been manufacturing high-precision mechanical engineering elements for customers in a wide variety of industries - individual components, assemblies and special machines, with which we have earned an excellent reputation both locally and globally.


The best for everyone

We would also be happy to convince you with our services. Flexible, dialog-oriented and on schedule, we weld, drill, mill and turn even the largest and heaviest parts according to individual specifications. No matter whether individually or in series, whether for small customers or corporations. Thanks to modern CNC machinery, a central tool management system, welding equipment up to 25 tons, well-trained and trained specialists and TÜV-certified quality management, we can fulfill almost every wish.


Precision "Made in Germany"

Our production is divided into two areas. In steel construction, a wide variety of metal structures are created under the hands of experienced locksmiths and welders.We complete them in machining: Here, competent machining technicians mill, drill and turn, e.g. bearing seats for gearboxes or complete underwater housings for propellers - always in the highest precision class. We do all the work ourselves (if desired, right up to the completion of entire assemblies); outsourcing is out of the question for us: the risk of quality fluctuations would be too great.


We do what you need

Your drawings and plans are decisive for us. But you can be sure that every step is carried out with the critical expertise of a mechanical engineer. Our strength is to think about the later use of the component during production so that it does its job perfectly. If you wish, we can start with this before production: Together with you, we will check your designs, make recommendations and also like to develop components yourself for the application you are planning.