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KLEIN – Fertigung

Process engineering systems for conveying, mixing, recycling and shock wave technology – Making Materials Work.

KLEIN Logo

KLEIN Anlagenbau AG

Freudenberg (Headquarters), GermanyNew on Amplifa

1999Founded by 24 employees as a spin-off from the
70Employees
AG (partially employee-owned)Legal form; Siegen Local Court HRB 11810
WorldwideDelivery area
100% subsidiaryKLEIN Stoßwellentechnik GmbH (Siegen Local Court HRB 11842)

About KLEIN Anlagenbau AG

KLEIN Anlagenbau AG develops, designs and manufactures process engineering systems and installations for the handling of bulk materials and raw materials. The portfolio includes pneumatic conveying systems with pressure vessel conveyors, core sand mixers (STATORMIX®), vibration charging mixers, brake sand filling and spreading systems for rail vehicles, sand reclamation plants for foundries as well as systems for generating underwater shock waves. The shock wave technology (CERABITE®) is used for decoring and cleaning complex castings such as cylinder heads, engine blocks, turbocharger and battery housings, for fibre processing and for recycling of electronic devices and composite materials. In addition to plant engineering, the company offers consulting, engineering, field trials in its own technical centre, contract manufacturing (shock wave cleaning of castings), energy consulting and technical support from a single source. Customers are internationally leading companies from the foundry industry, automotive and defence technology, rail technology, the bulk materials, glass and electronics sectors as well as the textile industry. Founded in 1999, partially employee-owned, the company with around 70 employees is based in Freudenberg (Siegen-Wittgenstein district) and supplies customers worldwide.

Site
Freudenberg
Processes
Pneumatic conveying technology (pressure vessel conveyors, piping systems), Mixing technology (STATORMIX® core sand mixers, vibration mixers SM), Shock wave technology (CERABITE® decoring / cleaning of castings, fibre processing,, Contract cleaning/degreasing of complex castings with shock wave cleaning system (Contract, Processing and reclamation of used sand (mechanical reclamation of chemically/inorganically, Recycling of electrical and electronic devices using shock waves (material separation), Brake sand filling systems and spreading systems for rail vehicles, Plant engineering and engineering for process technology (consulting, field trials, pilot plants)
Materials
Sand (moulding sand/core sand/brake sand), Castings (casting materials), Pneumatic Conveying Technology, STATORMIX® Core Sand Mixing Technology, Vibration Charging Mixer SM, Shock Wave Technology (CERABITE®), Sand Reclamation, Brake Sand Technology
Founded
1999
Employees
70
Industries
Foundry industry, Automotive & defence technology, Rail technology, Bulk materials industry, Glass industry, Electronics recycling
  1. 01

    Consulting

  2. 02

    Engineering/Design

  3. 03

    Field trials in own technical centre

  4. 04

    Plant manufacturing and assembly

  5. 05

    Commissioning

  6. 06

    Contract manufacturing (shock wave cleaning)

  7. 07

    Technical support and energy consulting

Technologies and Processes

PNEU

Pneumatic Conveying Technology

Pressure vessel conveyors and piping systems for free-flowing bulk materials of any kind and quantity.

STMIX

STATORMIX® Core Sand Mixing Technology

Vertical flow mixer with two-chamber system and stator for homogeneous core sand recipes in foundries and 3D printing.

SM

Vibration Charging Mixer SM

Mixer without rotating parts in the mixing vessel, driven by an unbalance motor, as a compact mixing plant.

SW

Shock Wave Technology (CERABITE®)

Underwater shock waves for sand and core removal from complex castings, for fibre processing and for recycling of electronics.

REG

Sand Reclamation

Complete systems for mechanical processing of chemically or inorganically bonded used sand with screens, classifiers, coolers and vibration breakers.

BS

Brake Sand Technology

Filling and spreading systems for the precise application of brake sand on rails for greater safety in rail traffic.

Locations

Standort Freudenberg

Freudenberg

DE

Headquarters with office and production building as well as own technical centre for field trials

Materials
Sand (moulding sand, core sand, brake sand), castings, bulk materials
  • Pressure vessel conveyors / pneumatic conveying systems
  • STATORMIX® core sand mixers
  • Vibration charging mixers SM
  • Shock wave cleaning system CERABITE®
  • Sand reclamation plants (unpacking stations, vibration screens, classifiers, return and fluidized bed coolers)
  • Shock wave separation systems
  • BIG-BAG emptying stations and silos
  • Brake sand spreading systems

Systems and Components

Shock wave cleaning system for castings (CERABITE®)
Shock wave cleaning system for castings (CERABITE®)Shock wave technology · Foundry/Automotive
STATORMIX® core sand mixer
STATORMIX® core sand mixerMixing technology · Foundry
Sandfloh products – pneumatic conveying and filling systems
Sandfloh products – pneumatic conveying and filling systemsConveying technology · Bulk materials
Brake sand filling systems for rail vehicles
Brake sand filling systems for rail vehiclesConveying technology · Rail technology
Sand reclamation plant
Sand reclamation plantRecycling technology · Foundry
Shock wave separation system for electronics recycling
Shock wave separation system for electronics recyclingShock wave technology · Recycling
Systems for bulk material handling
Systems for bulk material handlingConveying technology · Bulk materials industry

Inside the production

KLEIN Anlagenbau – Vision: systems for material handling
KLEIN Anlagenbau – Vision: systems for material handling
Production and office building in Freudenberg-Büschergrund
Production and office building in Freudenberg-Büschergrund
Manufacturing at the Freudenberg site
Manufacturing at the Freudenberg site
Systems and installations for process engineering
Systems and installations for process engineering
Technologies for bulk materials and raw materials
Technologies for bulk materials and raw materials
25 years of KLEIN Anlagenbau (2024)
25 years of KLEIN Anlagenbau (2024)
Technical support and service
Technical support and service

Industries

Foundry industryAutomotive & defence technologyRail technologyBulk materials industryGlass industryElectronics recyclingTextile industry

Processes & technical limits

ProcessesToleranceMax. partWeightLot sizeMaterials
Pneumatic conveying technology (pressure vessel conveyors, piping systems)Forming––––free-flowing bulk materials, sand
Mixing technology (STATORMIX® core sand mixers, vibration mixers SM)Engineering––––sand, additives, binders
Shock wave technology (CERABITE® decoring / cleaning of castings, fibre processing,Surface––––castings (cylinder heads, engine blocks, turbocharger, ceramic cores, natural fibres (hemp), electronic devices, composite materials
Contract cleaning/degreasing of complex castings with shock wave cleaning system (ContractSurface––––castings
Processing and reclamation of used sand (mechanical reclamation of chemically/inorganicallyRecycling––––sand, moulding sand (chemically bonded), moulding sand (inorganically bonded)
Recycling of electrical and electronic devices using shock waves (material separation)Recycling––––metals, plastics, batteries, circuit boards
Brake sand filling systems and spreading systems for rail vehiclesEngineering––––brake sand
Plant engineering and engineering for process technology (consulting, field trials, pilot plants)Engineering–––––

9 Anlagen & Maschinen

MachineManufacturer / modelQuantityWorking areaYear builtSite
Pressure vessel conveyors / pneumatic conveying systemsKLEIN Anlagenbau AG–––Freudenberg
Sand filling systems / brake sand spreading systemsKLEIN Anlagenbau AG–––Freudenberg
STATORMIX® core sand mixer (vertical flow mixer, two-chamber system with stator)KLEIN Anlagenbau AG STATORMIX–––Freudenberg
Vibration charging mixer SM (without rotating parts, unbalance motor)KLEIN Anlagenbau AG SM–––Freudenberg
Shock wave cleaning system for castings (CERABITE® process)KLEIN Anlagenbau AG / KLEIN Stoßwellentechnik GmbH CERABITE–––Freudenberg
Sand reclamation plants (unpacking stations, vibration screens, vibrating conveyors, magneticKLEIN Anlagenbau AG–––Freudenberg
Return coolers (vertical) and fluidized bed coolers (horizontal)KLEIN Anlagenbau AG–––Freudenberg
Shock wave separation systems (electronics/composite material recycling)KLEIN Stoßwellentechnik GmbH–––Freudenberg
BIG-BAG emptying stations and silos / complete systemsKLEIN Anlagenbau AG–––Freudenberg

Additional services

ConsultingEngineeringPilot trials/field trials in own technical centreContract manufacturing (shock wave cleaning of castings)Energy consultingTechnical supportPlant engineering/process technology

Reference customers

Leading international automotive manufacturers (OEMs) and their suppliers (unnamed)

History

  1. 1999

    Foundation of KLEIN Anlagenbau GmbH by 24 employees as a spin-off from the insolvent Alb. Klein GmbH & Co. KG

  2. 2003

    Conversion into an AG; employees hold restricted registered shares (year not documented, position according to company chronicle)

  3. 2017

    Purchase of a commercial property in Freudenberg-Büschergrund

  4. 2018

    Groundbreaking for a modern, energy-efficient office and production building

  5. 2021

    Acquisition of KLEIN Stoßwellentechnik GmbH as a 100% subsidiary (year not documented, position according to company chronicle)

  6. 2023

    Move to the new headquarters Obere Hommeswiese 53–57; 70 employees (year not documented, position according to company chronicle)

  7. 2024

    25th company anniversary

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