CGH Group designs and manufactures stainless, acid-resistant and duplex steel tanks for the food, pharmaceutical and chemical industries and the power sector. Since PROXMUS of Elbląg joined the Group, we have combined CGH’s experience in building storage tanks with a plant designed exclusively for austenitic and austenitic-ferritic steels. We produce both large storage tanks of up to 300 m³ and process, hygienic and pressure tanks to customer documentation.
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Stainless steel tanks
Applications of CGH stainless steel tanks
CGH stainless tanks are used in industries where medium purity, chemical resistance and compliance with hygiene requirements matter:
Spirits industry – excise tanks for spirit and vodka, also in ATEX versions.
Brewing – process and storage tanks for breweries.
Juices, beverages and dairy – hygienic tanks compliant with EHEDG and Regulation (EC) 1935/2006.
Pharmaceuticals and cosmetics – tanks, mixers and process reactors.
Chemicals – storage of phenol, urea, alcohols and corrosive substances.
Power sector and environmental protection – ammonia water and reagents for SCR/SNCR systems.
Automotive and water – tanks for AdBlue and for drinking, demineralised and process water.
We adapt our designs to the specific nature of our customers’ production processes.
Purpose
We offer tanks with capacities from a few hundred litres up to 300 m³ in a single unit. To order, we produce tanks and process equipment in any configuration to the customer’s design. CGH stainless steel tanks are designed for:
Safe storage of food, pharmaceutical and chemical media without contact with paint coatings.
Meeting EHEDG hygiene requirements and regulations for materials in contact with food.
Operation in process installations – with mixing, heating, cooling and CIP cleaning.
Long service life in chemically aggressive environments.
Technical data of CGH stainless steel tanks
Description:
- Tanks manufactured in accordance with PED 2014/68/EU and EN 13445, AD 2000, EN 12285-2, EN 12952-14 or to customer documentation.
- Hygienic design compliant with EHEDG guidelines and Regulation (EC) 1935/2006.
- Optional ATEX version and WHG approval.
- Welding by TIG (121), MIG, MAG and MMA methods and with automatic welding machines.
- Pickled and passivated surfaces, optionally ground and polished.
Material:
Stainless steels 1.4301 (304), 1.4307 (304L); acid-resistant 1.4404 (316L); duplex steels (austenitic-ferritic); other grades on request.
Capacity:
from a few hundred litres to 300 m³.
Diameters:
Standard 1250–3600 mm, custom versions up to 5000 mm.
Operating pressure:
From vacuum and atmospheric pressure to pressure vessels per PED.
Operating temperature:
from -20°C to +50°C in storage versions; in versions with a heating or cooling jacket as per design.
* Other configurations available on request.
CGH stainless steel tanks – optional equipment
- Cleaning heads and CIP system connections.
- Paddle, screw or static agitators, and nozzles for mounting them.
- Heating and cooling jackets, coils, heating cables.
- Thermal insulation with stainless steel cladding.
- Level, temperature and pressure measurement, overfill protection, leak detection.
- DN600–DN800 manholes, sight glasses, hygienic fittings.
- Stainless steel ladders, platforms, walkways and handrails.
- Pumps, fittings, instrumentation and control (I&C) and SCADA system.
Tank surface
- Stainless steel tanks do not require paint coatings – after welding, the surfaces are pickled and passivated, which restores the passive layer.
- We grind dished ends and tank surfaces up to 5 m in diameter on a CNC grinding machine, which delivers a repeatable hygienic finish.
- We select the roughness of internal surfaces to meet industry requirements and the customer’s specification.
Advantages of CGH stainless steel tanks
Wide choice of materials: stainless, acid-resistant and duplex steels selected to suit the medium, concentration and temperature.
Hygiene: manufactured to EHEDG and (EC) 1935/2006 for the food and pharmaceutical industries.
Completeness: from P&ID design, through tanks, pumps and automation, to installation and commissioning.
Production facilities: the Elbląg plant dedicated to austenitic and duplex steels, with a 130 × 30 × 17 m hall and overhead cranes of up to 100 t.
Welding quality: a quality system to PN-EN ISO 3834-2, approved welding procedures for austenitic steels and automatic welding machines.
Safety: double-wall versions with leak detection, ATEX and WHG versions.
Production facilities for stainless steel
We produce stainless tanks at two CGH Group plants. The Elbląg plant (PROXMUS) has been equipped exclusively for processing austenitic and austenitic-ferritic steels since 2015.
| Area | Capabilities |
|---|---|
| Elbląg plant area | workshop approx. 10,000 m², site approx. 34,000 m² |
| Production hall | 130 × 30 × 17 m |
| Overhead cranes | 5 overhead cranes, lifting capacity up to 100 t |
| Shell forming | tank shell forming machine, plate rolling machine L 3 m up to 18 mm, conical rolls L 2.5 m |
| Dished ends | 4100 mm hydraulic press, metal spinning machine, CNC grinding machine for dished ends and tank surfaces up to Ø5 m |
| Cutting | 5 × 5 m robotic plasma cutting station up to 130 mm; 3100 × 3100 mm WaterJet up to 150 mm |
| Welding | TIG (121), MIG, MAG, MMA, automatic welding machines, welding robots |
| Machining | lathes and boring machines for parts up to 15,000 mm in length and Ø8,000 mm, CNC turning and milling |
| Engineering | in-house design and engineering office, CAD design, P&ID, pump selection, I&C |
| PROXMUS certificates | ISO 9001:2015, ISO 14001:2015, ISO 45001:2024, PN-EN ISO 3834-2:2021-09 |
Vertical 1.4307 stainless steel tanks – basic capacities
| Capacity [m3] | Diameter [mm] | Tank height [mm] |
|---|---|---|
| 10 | Ø2000 | 4 400 |
| 20 | Ø2500 | approx. 3,400 |
| 40 | Ø3200 | 4 000 |
| 60 | Ø2900 | 8 000 |
| 80 | Ø3400 | 8 000 |
| 100 | Ø3400 | 10 000 |
| 155 | Ø3600 | approx. 17,000 (total) |
* Other capacities, diameters, equipment and steel grades available on request. Tank weight is stated in the quotation following strength calculations.
See also – stainless tanks for industry
- Ammonia water tanks – double-wall 1.4307 tanks for SCR/SNCR systems.
- Urea tanks – 1.4404 tanks with internal heating.
- Phenol storage tank – 304L tanks with a heating coil.
- Ethanol tanks and Alcohol tanks – tanks made of 1.4301 steel or higher.
- Chemical reactors and Mixers – process structures made of 1.4307 steel.
- AdBlue tanks – 1.4307 tanks with heating cables.
- Drinking water tanks – 304L stainless steel versions.
CGH Mission we build trust, we deliver quality!
Our goal is to create innovative products that meet the demands of today’s market. We strive to ensure that CGH solutions contribute to environmental protection while supporting the growth and operational stability of your business.
CGH is a partner you can trust, regardless of the scale or complexity of your project.
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Our team will be happy to answer all your questions and help you find the best solution for your needs.