Company Profile


Services

The J. & G. Renzelmann GmbH (Renzelmann) comprises the divisions Werkzeugschleiferei and trade. The company offers a comprehensive supply of tools from the cutting and machining as well as related accessories. The expert advice for optimal use of the tools are vendor-neutral and on request also the customer's site.
Are offered a wide range of innovative tools and coatings. Renzelmann leads both brands leading brand suppliers as well as our own product lines with proven quality and outstanding value for money. Also develops and produces Renzelmann individual special tools according to customer or optimized the geometry of existing tools as needed.
Worn out tools put the well-trained and experienced staff accurately repaired. Both in making and repairing the computer-aided tool grinding machines (CNC) come with up to five axes for the course.With the help of minimal tolerances are maintained during processing. Documents the high quality is also CNC controlled laser measurements.
For the following separation processes Renzelmann provides the appropriate tools and services:
- Cutting: shear cutting and knife cutting
- Machining: Turning, drilling, reaming, milling, planing, slotting, broaching, sawing and chiselling.
In addition, the company provides its customers with appropriate accessories and equipment, such as cooling lubricants and equipment for minimum quantity lubrication.

The processing time for the repair is five working days normally. In urgent cases, the processing is done by arrangement overnight. In addition to a possible Europe-wide delivery by logistics partner, a nice pick-up and delivery service is available within a radius of 150 km around Bremen.


Customers

As a reliable partner in cutting and machining Renzelmann combines a mostly long-term cooperation with their demanding customers in industry and crafts.Together they find efficient solutions for machining metals, woods, plastics, papers, rocks as well as food. Corresponding differences in the industries in which the customers operate.


History

Founded back in 1954 by Irmgard and Johann Renzelmann primarily for machinery trade, the J. & G. Renzelmann GmbH developed in the course of its history to become a recognized expert in grinding technology which now has some 15 employees.
Since 1985, the Bremer family business is run by brothers Jürgen and Gerd Renzelmann. Also dates from the 1980s, the membership of the Technical Association of German precision tool grinder (FDPW), where Gerd Renzelmann as a board member already takes over 10 years of responsibility.
Meanwhile, with Mario Renzelmann already the third generation of the family entered the business.

1979 as a manufacturing company of Sägemaschinenherstellers
Founded Hermann plaintiffs GmbH, make today motivated
Professionals and modern machines with effective
Quality assurance of precision parts highest claim.

We are proud to be known manufacturers of optical and medical equipment as well as manufacturers of machine tools, printing, construction and special machines belong to the circle of our customers. Precision and quality convinced the.

KONMAK IND. INC has been producing marble machine productions on a large scale since 1980 and has thus acquired an extensive expertise in mechanical productions. Having based ourselves on the features demanded by large companies, we have created innovative, user-friendly applications that are now available to small and medium-size companies.



Our keen knowledge of the marble machine industry has helped us develop solutions that answer the needs of today’s clients. These solutions allow you to increase productivity, reduce operating costs and increase customer satisfaction. All of our marble machines are produced on CNC controlled workbenches which are designed by KONMAK’s R&D department. The machines are tested in KONMER-the brother company of KONMAK-to ensure the high quality. Also, we produce assembly and layout plan of the water clarification tanks which marble producers need.



We also provide concrete mixers which fit the European standards of abrasion resistance. Our concrete mixers are user-friendly and efficient. Besides, we also export cable machines to lots of countries such as Iran, Syria, Egypt, Sudan and Jordan.



Our products also include sail masts which are aesthetically pleasing and corrosion resistant. KONMAK is a major supplier of underground and pressure vessels, textile, food and chemistry sectors. Utilizing the latest manufacturing technology standard of ISO 9001-2000 EQA Quality Management System, KONMAK participates lots of national and international trading exhibitions.



Further to our information, please take a few minutes to visit our website: www.konmak.com. See how KONMAK’s marble machines can optimize your business. I invite you to contact us today so that we can discuss in details how we can help you.



Thank you for the interest you have shown in KONMAK!

Dear Sir or Madam,
KPPU UNIBUD is a private, medium-sized company with 400 employees, based in Wielki Klincz, 60 km south-west of Gdansk. For more than 25 years, our core business has been CNC-controlled wood processing, the finishing of the elements with high-quality surfaces and the assembly of the individual elements into finished products.
UNIBUD is equipped with state-of-the-art machines and innovative facilities that meet the highest technical requirements of our customers.
CNC-controlled woodworking centers, lacquering systems, 3D film coating systems and machines for the production of highly polished surfaces together with the know-how of our employees guarantee an outstanding quality of the finished product.
We are able to process both chipboard, MDF and plastics in our plants.

We cordially invite you to check our skills and our possibilities.
Please contact us if you are interested.

KTM GmbH

Fast, reliable and cost-effective procurement, around the machine and plant construction, the strength of the KTM.
Our customers include leading companies from the automotive, aerospace, plant and mechanical engineering.

Especially for individual parts, small series or accessories (eg seals), it is important to keep the purchasing cost as part and still benefit from secure and reliable sourcing channels.

With its own PUR production and extensive machinery for CNC machining (turning, milling, cutting, grinding), we can even small series and spare parts quickly, reliably and provide fair conditions.

Another specialty of the KTM is the sealing business.
Whether it is soft seals, metal seals, gaskets comb, spiral, profile or other specialized seals, we can supply both standard stock items and custom with the quality certificates.
In over 20 years sealing business, we have already provided a lot of great plants for the chemical and petrochemical industries with the complete seal range.

Our customers benefit from time and cost savings with the highest quality security!

Toolmaking

EDM:

* CNC vertical eroding machines with continuous path control in 4 axes
* conventional vertical eroding machines with digital gauge
* CNC-wire cut eroding machine with 2D-continuous path control

Milling:

* highspeed-CNC-milling machine with 40.000 rpm for steel- and graphite-processing, applicable for complex freeform surfaces
* CNC-milling machine for steel-processing with 3D-continuous path control
* conventional milling machines with digital gauge

Grinding:

* jig grinders
* internal and external cylindrical grinding
* surface grinding

Turning, Drilling, Engraving:

* conventional lathe with digital gauge
* jig boring machine with digital gauge
* engraving maschine

Injection moulding

Material preparation/ drying:

* central material preparation
* automatic vacuum material charging
* mobile drye
* mixer


Injection moulding machines:

* 30 injection moulding maschines with clamping forces from 15t up to 650t
* shotweights from less than 1 gram to 3000 gram
* tool sizes up to 800 x 800 mm
* machines from Demag, Battenfeld, Arburg
* production units with high-precision all-electric injection machines from Demag


Automation:

* majority of the machines equipped with handling systems (Wittmann, Gosewehr, Battenfeld)
* sprue pickers
* pumping systems
* switch-systems for automatically separation of sprue and moulded part
* specific automation solutions

Assembly/ finishing

* Ultrasonic welding
* Hotstamping
* Thermoforming
* Pad printing
* Final assembly of components
* Metal coating
* Painting, creation of decorative surfaces

Innovative technologies

Gas injection moulding

Objective:

* reduce weight (in one case up to 40 %)
* shorten cycle times
* create high-gloss surfaces

Multi component injection/ Sandwich injection moulding
Objective:

* Realization of hard-soft-components
* reduce material costs
* create special designs and/or functions

Injection compressing moulding
Objective:

* avoidance/ reduction of sink marks
* increased precision of the part surface
* reduction of the required injection pressure
* smaller injection moulding machines required

Processed plastic materials

High performance plastics:

* PPS Polyphenylensulfid
* PEI Polyetherimid
* LCP Liquid Crystal Polymer

Technical plastics:

* PC Polycarbonat
* PBT Polybutylenterephthalat (früher PBTP)
* TPE Thermoplastische Elastomere
* PET Polyethylenterephthalat (früher PETP)
* PA 6 Polyamid aus Caprolactam
* PA 6.6 Polyamid aus Hexamethylendiamin / Adipinsäure
* PA 12 Polyamid aus Dodekansäure
* PPE Polyphenylether
* POM Polyoxymethylen
* ABS Acrylnitril-butadien-styrol
* ABS / PC Acrylnitril-butadien-styrol/Polycarbonat-Blend
* SAN Styrol-Acrylnitril
* ASA Acrylnitril-styrol-acrylester

Mass plastics:

* HDPE Polyethylen hoher Dichte
* PS Polystyrol
* LDPE Polyethylen niederer Dichte
* PP Polypropylen
* PMMA Polymethylmethacrylat

With a wide range, the Langen tool GbR developed since 1983 into a full-service provider around the production, regrinding, and sales of virtually all cutting tools for the woodworking, plastics and metal processing industry.

As a full service provider, we specialize in the production of special tools, regrinding and the coating of cutting tools, repair of insert holders and the distribution of almost all new tools around the cutting.

CNC machining

Welding (WITG/TIG, MIG/MAG)