Renewable Energy
Precision Turned Parts for Renewable Energy
Heat pumps, hydrogen technologies, inverters, wind turbines, battery storage and charging infrastructure — the energy transition depends on millions of reliable precision components.
What these applications demand from turned parts manufacturers: long-term stability under varying loads, media resistance and reproducible series production.
ISO 13485 · ISO 9001 · ISO 14001 · IATF 16949 certified
Made in Switzerland ·· 80+ Years of Experience
Our machinery is built for precision, and our processes make sure it stays that way. Every part that leaves our factory goes through exactly the same checks, whether it’s a prototype or the ten-thousandth piece off the line. ISO 9001 / ISO 14001 / ISO 13485 / IATF 16949 certification isn’t a framed certificate on the wall for us. It means CAQ-driven inspection and watertight documentation, so every batch holds the same standard as the very first approved sample.
Where Our Parts Work Every Day
Energy technology places high demands on material, tolerance, surface quality and process reliability. Below we present two application areas in which precision turned parts from Häni + Co. AG are already in use today.
Our Application Range
Heat pumps and refrigeration systems
Bushings, sensor carriers and further precision turned parts for applications in heat and refrigeration technology. Depending on their function, these components place high demands on dimensional accuracy, sealing surfaces, thread fits and surface finish. Reproducible manufacturing processes are particularly critical for recurring series over long product lifecycles.
Hydrogen applications
Valve components, pressure regulator parts and further precision turned parts for fuel cells, hydrogen combustion engines and hydrogen storage systems. Depending on the application, the key requirements centre on dimensional accuracy, surface quality, pressure resistance and reproducible manufacture.
What Sets Us Apart As Your Manufacturing Partner
Components in energy technology run for years or decades — often without access for maintenance, under fluctuating temperatures, with demanding media and in continuous operation. Whether it is a heat pump, a hydrogen application or another energy technology system, the precision components used must perform reliably from the moment of commissioning and maintain that performance throughout a long product lifecycle.
For the turned parts manufacturer, the challenge lies not in the individual part, but in the reproducible series. A customer who approves a precision component for a heat pump today and places the repeat order two years later must receive an identical part — with the same defined characteristics and the same reproducible quality.
With conventional and CNC-controlled single-spindle automatics, multi-spindle machines and rotary transfer machines, together with in-house finishing operations including centreless grinding, honing and gear cutting, we offer a broad manufacturing capability for economical series solutions.
Swiss Precision. Made in Switzerland. Since 1939.
What you can rely on
Long-term stability across every batch
What matters is not only the first article sample but also the batch produced two years later. Defined manufacturing processes and CAQ-supported inspection processes support reproducible quality throughout the full production lifecycle.
Complete traceability
Complete traceability means that for every batch produced, we hold the raw material certificate (including heat number and standard), production parameters, machine identification, date, inspection results and despatch records. These records remain available for the legally required retention period.
Requirements from media and operating conditions
Refrigerants, hydrogen, hydraulic oil and coolant each place specific demands on material selection and surface finish. The medium, operating pressure and temperature range must therefore be taken into account when specifying material and surface treatment.
Materials expertise for demanding applications
Lead-free materials for drinking water and refrigerant applications, stainless steel for corrosive environments, aluminium for lightweight components. Material certification provided in accordance with agreed customer requirements.
Co-engineering before drawing release
Changes made after release cost iterations. We review tolerance specifications for feasibility and geometries for process stability — before the series is launched.
Delivery reliability for series production
An extensive raw material inventory and long-standing supplier relationships support high delivery availability — even in constrained raw material markets.
Precision Manufacturing. Made in Switzerland.
Made in Switzerland means more to us than the highest technical standards alone. It also stands for a personal, collaborative relationship with our customers and a strong record of on-time delivery, something our customers tell us time and again.
Materials expertise for energy technology
Depending on the application, we machine a range of steel and stainless steel grades, aluminium, brass and further non-ferrous metals. Our experience in machining different materials informs our assessment of manufacturability and the design of an economical series process from an early stage. Material certificates are provided in accordance with agreed customer requirements.
Complete traceability
Every batch is fully documented in terms of raw material, production parameters and inspection results, throughout the entire legally required retention period.
Consistent quality across every batch
Stable, CAQ-supported processes and statistical process control ensure that the batch produced in two years’ time is every bit as reliable as the first.
Co-Engineering from Day One
We bring our manufacturing knowledge directly into your development process. That typically eliminates secondary operations, locks in process stability and drives down unit costs.
Long-term stable series production
Components for energy technology are frequently manufactured in recurring series over long product lifecycles. CAQ-supported inspection plans and statistical methods support reproducible manufacture across repeat orders.
Short Response Times & Direct Decision-Making
With our own raw material warehouse, we can react quickly when delivery quantities or schedules change.
Everything from a Single Source
From turning and finishing to assembly and quality documentation, we coordinate everything.
Precision as our Attitude. Quality is our Standard.
Quality, to us, is not merely an inspection step — it runs through everything we do. In energy technology, that means we measure what we promise and document what we measure. This is underpinned by our certifications to ISO 9001, ISO 14001, ISO 13485 and IATF 16949. For each component and customer requirement, we define appropriate inspection plans, inspection frequencies and process capability evidence. CAQ-supported inspection processes and statistical methods support reproducible series production throughout.
Our measurement capabilities span tactile and optical methods, contour measurement and high-precision 3D coordinate metrology. Surface finish, geometry and positional tolerances are all checked at defined intervals under real production conditions. Every step is monitored using statistical process control.
Our Services
ISO 9001, ISO 14001 certified
Quality and environmental management systems covering all manufacturing processes. The foundation for sustainability documentation in supply chains.
CAQ-supported quality assurance
Computer-aided inspection planning and measurement data capture. All data stored by order and available on demand.
Statistical process control (SPC)
Continuous monitoring of critical characteristics. Process drift is identified before it results in scrap.
Cpk verification
Process capability evidence for critical characteristics, available on request.
Optical and tactile metrology
3D coordinate measuring machines, optical and tactile systems, calibrated to specification.
First article inspection report (FAIR)
Documentation of agreed characteristics and evidence in accordance with customer requirements.
Full first article inspection report
Including nominal and actual values, raw material certificate, heat number, details of measuring equipment used and calibration status, as standard.
Complete traceability
Raw material, production parameters, inspection results and despatch records for every batch, retained for the full statutory period.
A direct point of contact
One person who knows your order and is available to answer queries, including during supplier audits.
How we work together
Sleeve
Highly complex assembly process
Bushing
Produced using various deburring methods
Connector
Special material with high surface quality
Pinion
Cylindrical part with finishes
Bushing
Component made of complex plastic
Pipe
Challenge: micron-precise positioning of the bore in large series
Magnetic tube
Eccentric design and high surface quality
Connecting part
Initially, the part consisted of two individual parts that had to be pressed together.
What Buyers and Engineers Want to Know (FAQ)
Who is Häni + Co. AG?
Häni + Co. AG is a Swiss family business founded in 1939, specialising in the manufacture of bespoke precision turned parts. Our strength lies in the cost-effective production of technically demanding components in medium to high volumes, backed by close technical collaboration with our customers throughout.
Based in Arch, canton of Bern, our 65-strong team operates a versatile machine park of conventional and CNC-controlled single-spindle and multi-spindle lathes, as well as rotary transfer machines — producing ready-to-fit precision turned parts across a diameter range of 1 to 65 mm.
We supply companies across a broad range of industries: building services and automation, mobility, electronics and connector technology, medical and laboratory technology, robotics and sensor technology, and renewable energy.
Our processes are certified to IATF 16949, ISO 13485, ISO 14001 and ISO 9001, ensuring the process reliability, quality standards and environmental performance that globally active customers rightly expect.
Where the application demands it, we complement the turning process with in-house secondary operations including honing, centreless grinding, vibratory finishing and roller burnishing. Surface treatments, electroplating in particular, are carried out by long-standing, qualified partner companies.
From development and industrialisation through to on-time series delivery, we work alongside our customers as a dependable manufacturing partner at every stage.
Which renewable energy application areas do you currently manufacture precision turned parts for?
We currently manufacture precision turned parts for heat pump and refrigeration applications, and for hydrogen technology. Typical components include sealing bushings, valve components and sensor carriers.
Which manufacturing processes do you use for renewable energy turned parts?
We manufacture on conventional and CNC-controlled single-spindle automatics, multi-spindle automatics and rotary transfer machines. This is supplemented by in-house processes including centreless grinding, honing, vibratory finishing and roller burnishing. Surface treatments such as electropolishing and electroplating are carried out by qualified partner companies
Are you ISO 9001 certified, and what does this mean for our collaboration?
Yes. Häni + Co. AG is certified to ISO 9001. The quality management system provides the foundation for defined, documented and reproducible processes, and supports our customers’ requirements for reliable series production.
What tolerances are achievable with CNC turned parts for renewable energy?
We routinely manufacture in the hundredths or thousandths of a millimetre. With appropriate requirements, suitable design, and the right material, these tight tolerances are achievable. In the initial consultation, we discuss together what makes technical sense and is economically feasible for your application.
Can your components be assembled automatically?
Yes, that’s by design. We engineer our components to be assembly-ready from the outset. Feed compatibility, pick-and-place suitability and compatibility with automated assembly equipment are topics we raise in the very first development conversation.
Do you handle prototypes and small series as well?
Yes, provided the intention is to scale to medium or larger volumes. For projects that are purely prototypes or very limited runs, we can support you through our partner network where needed. Otherwise, we follow projects all the way from first drawings through pre-production samples to full series manufacturing and we’re at our most useful when we’re involved from the start.
What surface finishes can you offer?
In-house, we offer centreless grinding, honing, roller burnishing, vibratory finishing, and hobbing. We refine your turned parts to micron precision. For processes we do not offer ourselves, we handle the complete coordination including quality control.
How do you ensure process reliability and series stability?
Our manufacturing processes are ISO 9001 certified and CAQ-supported. Every series runs with defined, validated process parameters that are fully documented. Through statistical process control, 3D metrology, and complete batch traceability, we ensure that Batch 1 and Batch 500 are identical. Zero-defect tolerance is not a slogan, it is a concrete goal of our series processes.
Do you offer co-engineering for renewable energy components?
Yes, and it’s one of our strongest offerings. Get us involved early and we can work with you to optimise tolerances, materials and geometries together. The result is typically a better part, a simpler process and lower unit costs.
What delivery times and logistics concepts do you offer?
Thanks to our own raw material warehouse, we respond flexibly to changes in demand. We offer VMI warehouse concepts, safety stock, and flexible batch size adjustments. As a Swiss precision parts manufacturer with direct decision-making channels, our response times are short and you always have a direct contact person.
How quickly can I expect a quote?
With complete drawings, we normally come back within three to five working days with a concrete offer. We’re a Swiss family business with short internal chains, decisions get made quickly, and you’ll always speak to someone who knows the project.
How do you ensure traceability?
For every batch, we document material certificates, production parameters, inspection results and despatch records. This information remains available throughout the legally required retention periods.