Gontermann+Simon GmbH + Co. KG

Germany, 57250 Netphen, Dreis-Tiefenbach

Overview

About Gontermann+Simon GmbH + Co. KG

Who we are

Gontermann & Simon is one of the leading providers in the production and mechanical processing of highly complex large components. With state-of-the-art machinery and decades of experience in heavy-duty machining, the company offers complete solutions from a single source — from raw part production and CNC processing to final measurement and quality testing. The company specializes in: Turned parts up to 2,000 mm diameter Milling large and heavy components Combined processing of rotationally symmetrical workpieces Individual and small series production for industries such as energy, mechanical engineering, plant engineering, steel and rolling mill industries Thanks to excellently qualified specialists and a high standard of quality and punctuality, Gontermann & Simon is a reliable partner for demanding customers who expect precision, flexibility and technical expertise at the highest level.

Netphen, Dreis-Tiefenbach, Germany

Member since 2025

Employees20 - 50

Certificates1

Turnover1 - 5 Mil.

Year of foundation1999

Marketing documents

Unternehmenspraesentation.pdfPDF File

Competencies

Technologies

Turning

Technologies	Lotsize	Length	Diameter
Turning	1–1,000	from 1,000 mm	from 200 mm
Full-range turning (including milling)	1–1,000	800–3,500 mm	800–3,500 mm
Hard turning	1–1,000	800–3,500 mm	800–3,500 mm
Centering / end facing	1–1,000	800–3,500 mm	800–3,500 mm

Measuring & Testing

Technologies	Length	Width	Height	Diameter	Weight
Measuring / testing	800–3,500 mm	800–3,500 mm	15–1,600 mm	10–3,500 mm	0–16,000 kg

Gear Making

Technologies	Lotsize	Length	Diameter	Weight
Internal teeth	1–1,000	800–3,500 mm	800–3,500 mm	0–16,000 kg

Milling

Technologies	Lotsize	Length	Width	Height	Diameter	Weight
Full-range milling (including turning)	1–1,000	800–3,500 mm	800–3,500 mm	15–1,600 mm	800–3,500 mm	—
Deep-hole drilling	1–1,000	800–3,500 mm	800–3,500 mm	15–1,600 mm	800–3,500 mm	0–16,000 kg

Drilling / Sawing

Technologies	Lotsize	Length	Width	Height	Weight
Drilling / threading / tapping	1–1,000	800–3,500 mm	800–3,500 mm	15–1,600 mm	0–16,000 kg

Materials

Cast metals

Cast steelCast iron

Heavy metals

Copper-zinc alloys (brass)Copper and copper alloysZinc and zinc alloysSolder

Steel

Structural steelCase hardening/tempering steelStainless steel (rust-proof V2A)Stainless steel (rust-proof V4A)Free-cutting/mild steelTool steelSpring steelCold extruding steel

Light metals

Aluminium and aluminium alloysMagnesium and magnesium alloysTitanium and titanium alloys

Plastics/synthetic materials

ThermoplasticsAcrylic (PMMA)High performance plasticThermosetsElastomersSilocone (LSR)Natural and vulcanised rubberGlass fibre-reinforced plasticCarbon fibre-reinforced plasticParticle reinforced composite materialsWood-Plastic-Composites (WPC)Natural Fibre Composites (NFC)

Industries

Paper and printing machinery industryShipbuilding industryMilitary engineeringMechanical engineeringAerospace and aviation industryMining and tunnel engineeringDrive and gear engineeringPlant engineering and constructionMachine tool manufacturingSpecial purpose machinery manufacturing

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