Barrels, funnels, pressure vessels & special constructions made of stainless steel

Technical advice & technical design

Increase quality & safety through perfectly adapted product designs & tools

Special designs in the usual BOLZ INTEC quality

Project planning & production from a single source

The design department at BOLZ INTEC designs, plans and develops products according to customer-specific requirements, including containers for pasty substances or liquids, transport containers for hazardous goods, cans for the storage and transfer of active ingredients, suction hoods for dust-free container loading and much more - in individual production or as small series, including mimics, piping and valves and always in accordance with GMP standards.

Your competent contact partners will check your project for technical feasibility, find solutions for individual restrictions such as diameter, height or weight and, if required, provide you with samples for testing free of charge.

Our quality management ensures that BOLZ INTEC designs are reproducible and traceable. With our processes for finishing stainless steel surfaces - electropolishing and optimized grind finishing - we reduce the risk of cross-contamination and reduce particle adhesion to an absolute minimum.

We also manufacture and assemble complete units, such as filling systems for granulates, according to your individual specifications. Special materials such as Hastelloy can be processed as well as stainless steels. On request, in conjunction with competent partners and experienced engineering offices, the customer-specific solution can be developed and supplied from a single source in the usual BOLZ INTEC quality.

BOLZ INTEC advises on the selection of the right material

Overview of materials

1.4301 (AISI 304)

Corrosion-resistant austenitic steel, versatile, good weldability, suitable for chemical and food applications.

1.4404 (AISI 316L)

Austenitic steel with added molybdenum for high corrosion resistance and good weldability, versatile in use.

1.4435 (AISI 316L)

Austenitic steel with increased molybdenum content and low ferrite content (< 3 %) for improved corrosion resistance and higher resistance to pitting.

1.4539 (AISI 904L)

Heat-resistant, high-alloy steel with increased chromium and nickel content, excellent resistance to acids and corrosion at high temperatures.

2.4602 Hastelloy C22

High-alloy nickel-chromium-molybdenum steel, excellent corrosion resistance to aggressive media such as acids, chlorine and oxidizing substances.

Special materials

In addition to the materials mentioned, BOLZ INTEC also processes other materials, depending on the customer's specifications and requirements.

BOLZ INTEC in the selection of the right surface

Overview of surfaces

Mill finish / 2B

Standard surface after rolling, uniform smoothness and roughness for a wide range of applications.


Matt finish thanks to brushing, increased scratch resistance, ideal for aesthetic and functional applications.

Ground to
Ra < 0.4 µm

Fine, even surface, especially for applications with high purity requirements and aesthetic demands.

Electropolished up to
Ra < 0.25 µm

High-gloss finish thanks to electrochemical polishing, maximum corrosion resistance and surface cleanliness.

OGF process up to
Ra < 0.05 µm

Optimized Grind Finishing is a process developed by BOLZ INTEC and the University of Constance for minimal particle adhesion.

BOLZ INTEC is a partner of well-known companies

Why customers around the world choose our stainless steel products

Tradition & innovation since 1919

BOLZ INTEC specializes in the manufacture of stainless steel drums, pressure vessels, agitator vessels, transport containers and transfer systems for hygiene-sensitive industries.

High vertical integration

BOLZ INTEC has acquired outstanding expertise in the machining of stainless steels and special materials such as Hastelloy. Combined with the skills and abilities of our team, this enables us to achieve maximum vertical integration. All production steps are carried out in-house. BOLZ INTEC is therefore able to react extremely flexibly to customer delivery date requests and guarantee unique quality.

Customized solutions

Our design department designs, plans and develops practical products according to our customers' requirements. These include, for example, containers for pasty substances or liquids, transport containers for UN hazardous goods, cans for the storage and transfer of active ingredients, suction hoods for dust-free container loading and much more.

One-off production & small series

BOLZ INTEC also manufactures custom-made products and small series.

Machines for perfect surfaces

Nothing in the BOLZ INTEC machine park is off the shelf. From the deep-drawing press to the electropolishing system, we work with special machines that have been developed according to our own specifications in order to meet the highest standards of quality and precision.

Traceability & reproducibility

BOLZ INTEC's QM system and our intensive testing procedures ensure the consistent quality of the stainless steel surfaces manufactured by BOLZ INTEC. In this way, we make a decisive contribution to the traceability of products in critical industries. 

Trust & security

Our striving for perfect quality, state-of-the-art production methods, but also craftsmanship and know-how are the basis for the superior BOLZ INTEC quality, which means safety and reliability for our customers. It is therefore not surprising that 80% of our customers have reordered every year for the last 10 years.

Comprehensive certification

We regularly have our quality certified externally: DIN 9001:2015, DIN EN ISO 3834-2:2006-03, DIN EN ISO 115085-2/CL1. We are a specialist company according to WHG §19/1 and carry out process tests according to DIN EN ISO 15614-1, operator tests according to DIN EN 1418. BOLZ INTEC fulfills the Pressure Equipment Directive-2014-68-EU/AD-2000 HPO and employs Intern. Welding engineers (DVS/IIW 1170).

Your advantages with BOLZ INTEC

High efficiency, low costs & great economy

Time savings in production

The use of stainless steel containers with optimized surfaces leads to significant time savings in the production process. By minimizing the build-up of materials, cleaning and maintenance times can be drastically reduced. This enables the containers to be reused more quickly and increases the overall efficiency of the production lines. In a production-intensive environment where time equals money, this time saving represents a significant economic advantage.

Reduced risk of production downtime

The reproducible quality of the stainless steel surfaces and the reduced number of defects minimize the risk of production downtime due to surface problems. This can lead to higher overall productivity and less downtime.

Reduction of production losses

Optimizing the container surfaces also minimizes the amount of product loss. Reduced adhesion means that more of the material produced is available for its intended use and does not end up as waste. This is a particularly important factor in industries where high-quality or very expensive materials are processed.

Improvement of product quality & product safety

Contamination-free production results in a higher quality end product. This is crucial in industries with strict quality and purity requirements, such as pharmaceuticals and food production, where purity and safety are top priorities. The use of optimized stainless steel containers can therefore also lead to improved brand image and customer satisfaction. We ensure the quality of our containers through our QM officer and stringent production processes. You will receive the corresponding documentation for each of our stainless steel drums.

Cost reduction through efficient cleaning & barrel maintenance

In addition to saving time, optimized surfaces also lead to a reduction in the costs of cleaning processes. Less build-up means less need for cleaning agents, water and energy. There is also less wear and tear on the containers themselves, which increases their service life and reduces the need for new purchases. In the long term, these savings in operating costs can make a significant difference to a company's profitability.

Longer container service life & positive eco-balance

The improved corrosion protection provided by the electropolishing process helps to extend the service life of stainless steel containers. Customers can thus reduce their costs for replacement investments and maintenance.

Customers from these industries increase their production efficiency with special stainless steel constructions from BOLZ INTEC

Specialty chemicals
Veterinary medicine
Plant engineering
Food supplement
Clean room
Natural remedies
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How the collaboration with BOLZ INTEC begins

Reach your goal in just a few steps


Send us an e-mail, give us a call or book an appointment via Calendly. In a phone call with one of our competent contacts, we will clarify a few questions in advance using checklists and send you a non-disclosure agreement (NDA).


Test phase
Based on your objectives and specifications, you will receive drums, containers, funnels and accessories from our test center - as required - to try out and test. You can use your test equipment to verify or adapt the specifications of your request.


During a visit to your premises, our competent contact partners will advise you on clarifying any final questions, finding solutions to identified problems and defining your exact requirements. We can then start production.

Our project team looks forward to your inquiry

Do you have questions about our products and services or would you like advice from one of our competent employees?

Give us a call or send us an e-mail. We will make time for you and will be happy to call you back if you wish.

Frequently asked questions to BOLZ INTEC

You ask, we answer

Our stainless steel containers are used in various industries, including pharmaceuticals, chemicals, food, cosmetics, energy and environmental technology, aerospace, as well as research and laboratories.
Our stainless steel containers are available in a variety of sizes and capacities to meet the individual requirements of our customers. Contact us for customized solutions.
We offer customized solutions and adapt our stainless steel containers to individual requirements such as process parameters, volumes and special functions.
Our services include electropolishing, passivation, mechanical processing and the unique Optimized Grind Finishing (OGF) process for optimum surface quality.
Our containers meet the strict hygiene standards of the EHEDG (European Hygienic Engineering & Design Group) and are therefore ideal for the pharmaceutical and food industries.
Our experienced team offers comprehensive advice and support for the seamless integration of our stainless steel containers into existing production processes.
Maintenance is minimal. Regular inspections and cleaning if necessary are sufficient. Our stainless steel tanks are durable and low-maintenance.
Time savings, lower risk of production downtime, reduction of product losses, improved product quality and safety as well as cost savings in cleaning processes.
Our optimized stainless steel containers offer improved cleaning, low adhesion and meet the highest hygiene and cleanliness standards.
Our stainless steel containers are resistant to aggressive chemicals and have been developed for safe storage and transportation in the chemical industry.
The OGF process enables reproducible surface quality, low particle adhesion, visual aesthetics, improved corrosion protection and applicability in critical industries.
The reduction of build-up leads to shorter cleaning and maintenance times, increased reusability of the containers and thus to an overall increase in production efficiency.
The OGF process results in low particle adhesion, improves cleaning efficiency and reduces the risk of contamination of product batches.
The improved cleanability and the subsequent electropolishing process help to extend the service life of the stainless steel containers.
Our containers meet industry-specific standards and certifications, including EHEDG for hygienic standards in the food industry.
Thanks to their durability, our optimized stainless steel containers help to reduce waste and resource consumption. The efficient cleaning behavior also improves the environmental balance.

Do you have questions or are you looking for advice?

Please do not hesitate to contact us by phone or e-mail.

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Find out how we reduce adhesion to stainless steel surfaces to an absolute minimum

Download our free white paper or arrange a personal meeting to find out how we can improve the quality and safety of your production using our patented OGF® process.

Book a consultation appointment with us now.