Lipp System Principle


The LIPP®-System – the only one of its kind in the world

In industry, agriculture and communities, the proper storage and processing of solids and liquids places extremely demanding requirements on tanks – especially where problematic or aggressive substances are concerned.

The LIPP-System is based on a simple yet ingenious tank construction principle that is the only one of its kind in the world. Steel coils, machines and accessories are transported to the building site where the tank is then constructed – the process is fast, efficient and flexible in terms of tank height and diameter. A profile is formed from steel strip by means of an automated two-step procedure. During the second step, the profile layers are joined together while the tank continues to grow upwards in a spiral. The steel strip can be tightly joined both using the LIPP Double-Seam System and also the LIPP welding technique, while ensuring stability.

  • Consistent quality worldwide
  • Automated, efficient construction on site
  • Individually customisable solutions
  • Minimal installation space required
  • High structural stability
  • Corrosion-resistant
  • Maximum leak-tightness
  • Low assembly and investment costs
  • Substrate-flexible due to specific choice of materials
  • Low maintenance costs

ISO 9001:2015

Quality Management System
LIPP GmbH has introduced a quality management and uses this for the following areas of application:

  • Development
  • Project Planning
  • Manufacturing
  • Distribution
  • Assembly and service in the sector of plant construction of tanks, silos and digesters for liquid, solid and gaseous media


Welding manufacturer according to DIN EN ISO 3834-2
LIPP is an approved welding manufacturer in tank, machine and steel construction according to DIN EN ISO 3834-2, to ensure professional welding operations.

Welding up to EXC3 class according to DIN EN 1090-2
LIPP is certified to calculate and manufacture structural components and steel structures up to EXC3 class according to DIN EN 1090-2.

Specialised company according to the WHG
LIPP is a certified specialised company according to article 19 of the German Water Resources Act, paying particular attention to the durability of its products, a professional execution and a solid workmanship in every detail.



 UVDB verified
LIPP GmbH has achieved the Category B2 standards through assessment for Safety, Health, Environmental & Quality practices and procedures as a registered supplier on verify:

  • Management System Evaluation
  • Onsite Assessment


Work safety – AMS BAU
LIPP fulfils the requirements of a systematic and effective work safety on basis of the German AMS BAU, an occupational safety management system for industrial companies.


continuously variable from 5 to 50m

continuously variable from 3 to 35m

from 100 to 10.000m3

further sizes on request


VERINOX® stainless steel
Duplex material constructed from a galvanised steel band on the outside and a stainless steel band, e.g. 1.4301 [304], 1.4571 [316Ti] or 1.4539 [904L], on the inner surface.

Stainless steels
e.g. 1.4301 [304] or 1.4571 [316Ti]

Galvanised/black steels

further materials on request


Solid, liquid or gaseous media
e.g. sewage gas, landfill gas, biogas, sewage sludge, sugar beet, bulk goods, etc.


continuously variable from 10 to 50 m

continuously variable from 3 to 35 m

from 100 to 10,000 m3

further sizes on request

Wall thickness
from 4 to 8 mm


Black steels
various qualities


Liquid and solid Media
e.g. oil, water, cement, bulk goods, etc.


continuously variable from 5 to 25 m

continuously variable from 3 to 20m

from 100 to 5.000 m3

further sizes on request

Wall thickness
from 2 to 4 mm


Stainless steel
e.g. 1.4301 [304] or 1.4571 [316Ti]

further materials on request


Liquid and solid Media
e.g. drinking water, food products, process water, etc.

Certified Management System

Our ISO 9001 certified management system helps us to standardize our business processes.
More information about the LIPP®-System
Lipp Double-Seam

LIPP® Double-Seam

When connecting the steel strips using the LIPP Double-Seam method, the steel profiles are joined by folding them together twice. The process developed by LIPP back in 1970 enables a tight connection to be made with a smooth internal wall for the storage of solid, liquid and gaseous substances. The matching of material grades to the specific intended application ensures optimum storage, regardless of the type of substrate.

Learn more about the LIPP Double-Seam

Lipp System Welding

LIPP® Welding Technology

Besides the folding method, the second method that can be used for constructing containers and tanks with the LIPP-System is the LIPP welding technique. This involves joining steel strips together with two seams by means of a combined welding process. The know-how developed by Lipp enables tanks made from stainless steel (e.g. drinking water tanks) and tanks made from black steel (e.g. for storing oil) to be welded by means of an automated process that offers dimensional flexibility.

Learn more about the LIPP Welding Technology

Construction with the LIPP®-System

As soon as the foundation slab has been laid, the construction of the tank can begin. To construct the tank, two machines, steel coils and a profile ring are set up on the foundation slab. Once the profile ring and the two machines are in position and have been set up, the construction of the tank can start. The first machine (profiling machine) feeds the steel strip at a slight angle to form a profile. Once the steel strip has completed a revolution, the adjacent profiled strips are brought together in the second machine. They are then folded together tightly or welded together according to the chosen system. The method of construction is comparable with a screw that moves forward with each revolution as the LIPP tank takes shape.

Lipp Assembly Principle
The two machines remain in position feeding the steel strip while the tank is formed, growing higher and higher in a spiral. Once the tank has reached a height of approximately 2 metres, the top edge is cut level. The roof is then installed or further connectors and parts are fitted or openings are made. Then the tank will continue to be formed slowly until it reaches its predetermined height. Ladders and supports will be added during the construction process.
Lipp Assembly principle

As soon as the desired height has been reached, the bottom edge is cut level and the components are removed from inside the tank. The tank is set down on the foundation slab by reversing the direction of revolution and is then fixed in position, marking the completion of the construction process. Thanks to their high quality and the economical production process, LIPP steel silos have now been constructed in over 80 countries all over the world.

In each case, the required machine is transported (by truck, container, etc.) to the intended installation site along with the material to be used where it is then set up directly on site, based on the modular principle. The material required (sheet steel strip) in order to produce a silo is cut to the desired length in the factory and rolled into one or more coils. The type and thickness of the material will depend on the structural requirements and the intended use of the silo in each case.

Further information

Lipp Materials Steel - Lipp System
Lipp Double-Seam
Tank quality - Lipp System
Behälter Qualität, LIPP Produktkatalog - Lipp System