Haenssler Plastics and Sealing Technology

Name

Haenssler Plastics and Sealing Technology

Legal name

HÄNSSLER Kunststoff- und Dichtungstechnik GmbH

Website

https://dicht.de

Company type

Private

Founded year

1986

Operating status

Operating

Headcount range

11–50 employees

Ownership category

akta.pro rank

Product category

Technical Plastic and Sealing Components Manufacturing

NAICS

Plastics Product Manufacturing (3261), Other Plastics Product Manufacturing (32619), All Other Plastics Product Manufacturing (326199)

SIC

Plastics Products, Nec (3089), Miscellaneous Plastics Products (3080), Fabricated Rubber Products, Nec (3060)

akta.pro primary industry

Industrial Rubber Products (Hoses, Belts, Seals, Gaskets) (IMANAOAM)

akta.pro secondary industry

Custom Injection Molding & Contract Manufacturing (Job Shops/CMs) (IMANAFAJ)

Keywords

• Precision plastic machining
• Industrial sealing solutions
• Technical plastic parts
• Additive manufacturing services
• Cryogenic seal components

Headquarters

HQ city

Mannheim

HQ country

Germany

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Personnel, Operations, Technology or R&D, Infrastructure, Marketing or Sales

Revenue model

1. Custom Plastic Parts Manufacturing: CNC machining of custom plastic parts and seals based on customer specifications. From standard solutions to high-tech components for demanding applications. Manufacturing includes turning, milling, and combined processes.
2. Standard Sealing Products: Production and sale of standard sealing products including O-rings, X-rings, scrapers, rod seals, piston seals, guide rings, back-up rings, flat seals, spring-loaded seals, radial shaft seals, rotary seals, high-pressure seals, and custom profiles.
3. Additive Manufacturing Services: 3D printing services including standard additive manufacturing, large format 3D printing (LFAM), fiber-reinforced materials, and post-processing of printed parts.
4. Express/Urgent Manufacturing: Express manufacturing services for urgent customer requirements with expedited delivery timelines.

Pricing tiers

Go-to-market motion1 record

Distribution channels3 records

Marketing channels4 records

Core offering

Hänssler Kunststoff- und Dichtungstechnik GmbH develops, designs, and manufactures custom technical plastic parts and seals through precision CNC machining, fibre-reinforced 3D printing, and Large Format Additive Manufacturing (LFAM). The company processes more than 160 different plastic materials - including high-performance polymers such as PEEK, PTFE, polyimide, and fibre-reinforced composites - into standard sealing articles and bespoke components for demanding applications in aerospace, oil and gas, hydrogen/LNG, shipbuilding, automation, and industrial manufacturing. It operates as an end-to-end development partner from concept and prototyping through series production, with dedicated account managers and express manufacturing services for urgent requirements.

Product overview

Haenssler offers a comprehensive portfolio of sealing technology, plastics technology, and additive manufacturing solutions. The core offerings include Dichtungstechnik (sealing technology) spanning scrapers, rod seals, piston seals, guide rings, O-rings, flat seals, spring-loaded seals, high-pressure seals, and cryogenic seals; Kunststofftechnik (plastics technology) covering CNC machining of over 160 technical plastics into turned, milled, and moulded parts; LFAM (Large Format Additive Manufacturing) combining 3D printing with 5-axis CNC milling for XXL components; and Additive Fertigung (additive manufacturing) including fibre-reinforced 3D printing. The company positions itself as a development partner, providing engineering support from concept to delivery, along with material compliance consulting and express manufacturing services.

Differentiator

Problem solved

Functional benefit

Products and services

• Dichtungstechnik (Sealing Technology) Complete range of sealing solutions from standard articles to technically demanding custom components, including scrapers, rod seals, piston seals, guide rings, back-up rings, O-rings/X-rings, flat seals, spring-loaded seals, radial shaft seals, rotary seals, high-pressure seals, special seals, sealing sets, and O-ring measuring towers for industrial B2B customers.
• Kunststofftechnik (Plastics Technology) Precision machining of technical plastics across 160+ materials, producing turned parts, milled parts, turned-and-milled parts, guide elements, moulded parts, and bushes/bearings. Specialised offerings include PEEK machined parts, large plastic parts, cryogenic plastic components, polyimide/Vespel parts, flame-retardant plastics, and drone components for industrial B2B buyers.
• LFAM (Large Format Additive Manufacturing) Large format additive manufacturing combining 3D printing with 5-axis CNC milling for XXL plastic components. Enables production of parts impossible with conventional methods due to half-stock size or geometry complexity constraints. Used in mould making, yacht interior customisation, concrete casting forms, trade fair models, and furniture manufacturing, economically viable from unit quantity 1.
• Additive Fertigung (Additive Manufacturing / 3D Printing) Industrial 3D printing for resilient plastic components in industrial applications, including large-format 3D printing, fibre-reinforced 3D printing (carbon and glass fibre), post-processing of 3D printed parts, heat-resistant thermoplastics, and flame-retardant plastic components for B2B customers.
• Fibre-Reinforced 3D Printing 3D printing with carbon fibre or glass fibre reinforced polymers (CFRP/GFRP) for high-strength industrial components. Materials include PA CF, PA6 GF30, PET CF, PC GF30, and PEEK CF30, delivering 20-50% higher strength than unfilled plastic, reduced warpage, and up to 30% higher heat resistance with high stiffness for B2B industrial buyers.
• Cryogenic Seals Specialised sealing solutions for temperatures below -150°C, used in liquid nitrogen (-196°C), liquid hydrogen (-253°C), and liquid helium (-269°C) applications. Features metal preload elements and high-performance plastics for consistent long-term performance in hydrogen, LNG, and aerospace cryogenic systems.
• Federvorgespannte Dichtungen (Spring-Loaded Seals) Spring-loaded seals in special dimensions up to 2,000mm outer diameter, made from PTFE, TFM, and various PTFE/TFM compounds with different spring concepts and designs, used in valves and fittings for oil and gas applications.
• Entwicklungspartner (Development Partner Services) Engineering partnership services including product development, design, material selection consulting, prototype building, and quality assurance, providing complete support from initial idea to delivery with a dedicated contact person for each B2B customer.
• Konformitäten & Zulassungen (Material Compliance & Certifications) Consulting services for material compliance, certifications, and regulatory approvals, including BAM certification for critical applications, PFAS-free sealing solutions, and NORSOK-approved materials for oil and gas applications.
• Express Fertigung (Express Manufacturing) Express manufacturing service for urgent B2B requirements, providing expedited turnaround times for custom sealing and plastic components.

Quantifiable outcome

• Spring-loaded seals in special dimensions up to 2,000mm outer diameter
• +3 more outcomes

Segments6 records

Ideal customer profiles6 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Scale indicators3 records

Recent moves7 records

Expansion highlights5 records

Others

• Victrex plc: UK-based manufacturer of PEEK and other high-performance polymers used in seals and engineered parts. Comparable only in material platform (PEEK/PTFE) rather than finished parts; functions as a supplier ecosystem rather than direct competitor.

Emerging players

• Stratasys: Global provider of industrial 3D printing systems including FDM/FFF, with fiber-reinforced and high-performance thermoplastics. Comparable in additive manufacturing of engineering plastics, though Stratasys is a printer OEM rather than a parts manufacturer.

Direct peers

• Freudenberg Sealing Technologies: Also a German-headquartered manufacturer of seals and polymer-based components for automotive, aerospace, oil & gas, and industrial applications. Directly comparable in seal design and high-performance polymer processing, but at a much larger global scale.
• Daemar Inc. North American distributor and manufacturer of industrial seals, O-rings, and engineered plastic parts. Comparable in B2B sealing and plastic component offerings, but geographically focused on the Americas.
• Greene Tweed: Manufacturer of high-performance seals and engineered polymer components serving aerospace, oil & gas, and semiconductor industries. Comparable in specialty materials (PEEK, PTFE) and demanding-application focus.
• Trelleborg Sealing Solutions: Global specialist in polymer- and rubber-based seals, including O-rings, spring-loaded seals, and custom engineered solutions for aerospace, oil & gas, and industrial markets. Closely comparable product portfolio and end-market exposure.
• Ensinger GmbH: German-based processor of engineering and high-performance plastics (including PEEK, PTFE, polyimide) into machined parts and stock shapes. Comparable in materials breadth and CNC machining of technical plastics.

Broad incumbents

• Röchling Group: German industrial group with operations in engineered plastics and sealing/specialty materials for automotive, industrial, and medical markets. Comparable in plastic parts manufacturing but operates at a larger, more diversified scale.
• Parker Hannifin (Sealing & Shielding): Large diversified industrial manufacturer with a substantial sealing technologies division offering O-rings, custom seals, and engineered polymer solutions. Overlaps in product category but is broader in scope and scale.

Regional players

• Gapi Technischer Gummi und Kunststoffe: German small-to-mid manufacturer of technical rubber and plastic parts, including seals and molded components. Comparable in Mittelstand contract-manufacturing model and product category, but smaller and less specialized in high-performance/cryogenic applications.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/haenssler-kunststoff-und-dichtungstechnik-gmbh
• Facebookfacebook.com/HaensslerKunststoffDichtungstechnik

Compliance4 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles6 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Haenssler Plastics and Sealing Technology