Dr. Knopf & Oswald

Dr. Knopf & Oswald

Dr. Knopf & Oswald GmbH

Aßling, Germany

Farm Equipment & Herd TechAutomation & Controls
ManufacturerSells to Dairy Farms
Profile last updated: April 9, 2026

About

Dr. Knopf & Oswald is a dairy industry manufacturer based in Aßling, Germany selling farm equipment & herd tech, automation & controls.

Dr. Knopf & Oswald is a German manufacturer of livestock ventilation and calf housing based in Aßling, Bavaria. Its CAT3000 hose ventilation system is custom-planned for cattle barns, calf housing, milking parlours, pig, poultry, sheep, goat and horse stables, and includes a ventilator, a hose made to measured dimensions, adjustable nozzles and fittings. Optional features include a heat exchanger, exhaust chimney and evaporative cooling for warm regions. The company also offers the Topcalf range of individual and group calf boxes and calf hutches, mobile or fixed, with removable partitions and removable slatted floors. Fan components are sourced from Ziehl-Abegg, and automatic climate control units are offered for EC and AC fans. Services include on-site survey, individual planning, installation by its own team or self-installation with instructions. The company operates in Germany, Austria and Italy through a subsidiary, Dr. Knopf & Oswald Italia S.r.l.

Location

Aßling, Germany

Company type

Limited company

Legal name

Dr. Knopf & Oswald GmbH

VAT number

DE308045875

Focus areas

calf housingcow barn ventilationhose ventilationstable climatecalf hutchesmilking parlour ventilation

Languages

DEIT

Products & capabilities

Supply categories

Farm Equipment & Herd TechAutomation & Controls

Supplier role

Manufacturer

Sells to

Dairy Farms

Milk species

Cow

Services

Installation

Products

Topcalf Mono Kälberbox XL

Calf individual box

Mobile single calf box with galvanised steel frame, plastic walls, removable slatted floor and first-care side wall option.

Topcalf Duo Kälberbox XL

Calf box

Mobile calf box for two calves with removable partition for pair or group housing.

Topcalf Trio Kälberbox XL

Calf box

Mobile calf box for two or three calves with removable partitions.

Topcalf Quinto Kälberhütte

Calf hutch

Outdoor calf hutch with removable partitions for groups of two to five calves, sandwich-panel insulated roof.

CAT3000 Schlauchbelüftung

Hose ventilation system

Hose ventilation system with ventilator and adjustable nozzles that supplies draught-free fresh air to cattle barns, calf housing, milking parlours and other livestock buildings, custom-planned per barn.

Brands represented

HikoZiehl-Abegg

Service regions

GermanyAustriaItalySwitzerland

Standards, references & customers

Reference installations

Familie Würth

Switzerland

CAT3000 hose ventilation for a dairy farm

Mathias Rottler

Germany

CAT3000 hose ventilation for a dairy farm

240 cows

Matthias Kirsch

CAT3000 hose ventilation for a dairy farm

80 cows

Ivana Giaroli

Italy

CAT3000 hose ventilation for a dairy farm

600 cows

Familie Häring

Germany

CAT3000 hose ventilation for a dairy farm with Lely milking robot

75 cows

Familie Hermann

Topcalf calf huts (single and double) with EasyClean

Familie Spirkl

Germany

CAT3000 hose ventilation for a dairy barn

Stehle & Schmidt GbR

Germany

CAT3000 hose ventilation for a three-row cubicle loose housing barn

Sustainability claims

Winter heating with waste heat from biogas plants, reducing energy costsReduced energy consumption and noise compared with conventional fan ventilationPlanetProof-compliant calf housing (2025)

Credentials & affiliations

Awards

Innovation of the Year (EasyClean system)

Eurotier2019

People

Management & team (1)

Other dairy suppliers in Germany

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