BOLZ INTEC

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

Perfect stainless steel containers for hygiene-sensitive applications in industry & trade

Increase quality & safety by minimizing particle adhesion

Convincing reasons for stainless steel tanks from BOLZ INTEC

The right stainless steel containers for every substance

BOLZ INTEC manufactures pressure vessels from -1 to +12 bar, batch vessels and other stainless steel vessels. As a specialist in the manufacture of special and custom-made products, all tanks can also be individually modified and adapted to specific customer requirements on request.

BOLZ INTEC containers are made entirely of stainless steel and manufactured in accordance with GMP guidelines. They therefore meet the high requirements in hygiene-sensitive sectors such as the pharmaceutical and chemical industries.

BOLZ INTEC manufactures agitator tanks in all possible sizes and designs for stationary installation or mobile use. Especially for the pharmaceutical and chemical industry, BOLZ INTEC plans and manufactures agitator tanks according to customer requirements: application-oriented, product-oriented and with the highest surface quality.

BOLZ INTEC batch containers offer the pharmaceutical and chemical industries maximum protection for their pasty, liquid or solid products. The GMP and HAACP-compliant design of the containers underlines the special manufacturing quality that is required in many industrial applications.

Ra < 0,05 µm ist die Oberflächenrauheit von Behältern mit dem Optimized Grind Finishing von BOLZ INTEC

Stainless steel containers from BOLZ INTEC

Pressure vessel

Stainless steel drums

Agitator tank

Special constructions

BOLZ INTEC offers the right material for every requirement

Materials for stainless steel containers

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 offers the right surface for every process

Surfaces for stainless steel containers

Mill finish / 2B

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

Brushed

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.

Customers from these industries increase their efficiency with stainless steel tanks from BOLZ INTEC

Cosmetics
Pharmaceuticals
Specialty chemicals
Veterinary medicine
Plant engineering
Food supplement
Nanotechnology
Clean room
Semiconductors
Vaccines
Biotechnology
Natural remedies
Aerospace
Health
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Result of pioneering research by BOLZ INTEC & Konstanz University of Applied Sciences

The Optimized Grind Finishing process (OGF)

In the pharmaceutical, chemical and food processing industries, minimizing build-up in containers is a critical factor for efficiency and quality. The build-up of substances on the inside walls of containers can lead to increased cleaning effort, product losses and contamination. This costs money and ties up resources. Especially in industries where EHEDG (European Hygienic Engineering & Design Group) certification and hygienic design are becoming increasingly important, minimizing adhesion has become a critical factor.

Research carried out by BOLZ INTEC in cooperation with the University of Constance has shown that the way in which stainless steel surfaces are removed plays a key role in minimizing adhesion. Different grinding methods result in different adhesion behavior, despite the same Ra values, and the OGF process from BOLZ INTEC leads to a lower adhesion of particles.

Below is a scanning electron microscope image of the stainless steel surface after electropolishing and Optimized Grind Finishing, as well as images of the surface texture roughness data and repeatability.

Easy cleaning & minimal adhesion

The Optimized Grind Finishing (OGF) process leads to a low adhesion of particles on the surfaces of the containers. This significantly improves cleaning efficiency and reduces the risk of contamination of product batches.

Reproducible surface quality

The OGF process enables reproducible surface quality. In contrast to conventional processes, in which variable factors such as manual contact pressure or the quality of abrasives play a role, the OGF process offers consistent surface quality.

Visual aesthetics and low number of errors

The stainless steel surfaces treated with the OGF process have an attractive appearance and defects in the surface structure are significantly reduced thanks to the fine and gentle removal process. This is particularly important in industries that place high demands on safety.

Improved corrosion protection

The electropolishing process not only improves the optical quality, but also results in chemical changes that lead to improved corrosion protection. This is particularly relevant for applications in chemical and pharmaceutical processes.

Reduced risk of batch contamination

The improvement in cleaning behavior through the OGF process leads to a significant reduction in residual dirt adhesion in the containers. This significantly reduces the risk of contamination between different product batches.

Applicability in critical industries

The process is seen as particularly advantageous for critical industries such as nanotechnology or biotechnology and pharmaceutical technology, where the highest purity requirements and the avoidance of contamination are of crucial importance.

Our white paper on the OGF process

Increased efficiency through minimal adhesion

Simply send an e-mail and receive the download link

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Services from BOLZ INTEC

Technical advice & design

Barrel repair

Simoflex® drum wash

Electropolishing

BOLZ INTEC is a partner of well-known companies

Why customers around the world choose our stainless steel containers

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.

How the collaboration with BOLZ INTEC begins

Reach your goal in just a few steps

1

Request
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).

2

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.

3

Offer
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.
Allgäu

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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Download whitepaper now

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.