Smart Fluid Systems

Products for industry - Tailor-made experience

Our products always meet the highest quality standards. This credo applies to all industries and customers we work with, no matter if they are companies in the international automotive, commercial vehicle, construction, agricultural machinery or in the engine industry.

Development and testing are based on customer-specific requirements combined with the best possible user benefits. The focus is on function, quality and maximum precision - combined with an optimum price/performance ratio.

COHLINE stands for competence and innovation since 1932.

COHLINE produces pipe and hose line systems for applications in the fields of oil supply, turbochargers, fuel, cooling and hydraulics.

Engine and transmission oil cooling

  • Supply and return lines to oil or water coolers
  • Lines with special hoses for vibration and noise damping

Turbocharger supply

  • Supply and return lines for oil supply
  • Supply and return lines for water supply

Hydraulic steering systems

  • Expansion hose lines
  • Suction hoses
  • Return lines
  • Steering coolers made of plain and finned tubes as well as CSC tubes

Fuel systems

  • Supply and return lines
  • Venting and regeneration systems
  • Injection lines
  • Fuel cooler

ABS, brake and clutch systems

  • Pressure lines for master and slave cylinders
  • After-run lines

COHLINE manufactures quality products. Quality originates in the minds of our employees! Our approximately 950 employees in Germany, Romania, England and the Czech Republic think in terms of processes and quality. They constantly improve and live the company's quality strategy with the aim of recognizing and avoiding errors before they occur.

Our quality strategy

  • High machine and process capability
  • Clear responsibilities in all areas
  • Application of efficient QA techniques and tools such as FMEA, SPC and 5S
  • Fulfilment of all relevant certification requirements
  • Appreciative interaction with each other within the company and with all our partners

We are committed to these principles. They apply in all areas. Our company is certified according to IATF 16949, DIN EN ISO 45001 and DIN EN ISO 14001. Quality management at COHLINE is a management task and a corporate strategy.

Manufacturing - Ideal processes

High-quality products require optimal processes. That is why our employees in R&D are constantly working on well thought-out, practical system solutions that are always strictly customer oriented. Based on our experience, we are your contact partner for the preparation of standards and specifications.

Our highly qualified teams are constantly testing new, innovative manufacturing processes. While taking future trends into account, they utilize the latest technology to further develop proven products. We manufacture the production equipment required for manufacturing in our own tool and jig shop.

We process metals (steel, stainless steel, aluminum, brass and copper), plastics (polyamides, PTFE) and elastomers (NBR, CR, EPDM, CSM, FPM, AEM, ECO) and combine these materials for the best possible results.

The goal: cost-oriented solutions for technological leadership.

Trend-setting developments and patents repeatedly demonstrate our customer proximity and market strength. Our decades of know-how in the design and manufacture of media-carrying piping systems, the continuous further development of our product range in line with customer-specific as well as our own requirements, and a competent knowledge of materials distinguish us as a market-leading innovation driver.

Our manufacturing competencies include bending, soldering, welding, as well as plastics processing, pipe end forming and automation.