Manufacture of conveying systems, dosing systems and special machinery for bulk solids handling in steel and stainless steel
Hartgen GmbH Maschinen- und Mühlenbau
27798 Hude (Kirchkimmer Straße 7a)New on Amplifa
Family business for machinery and mill construction since 1987
Hartgen GmbH Maschinen- und Mühlenbau is a family business founded in 1987, now run by the third generation, based in Hude, Lower Saxony. The mid-sized company with around 30 employees manufactures systems and components for bulk and unit load conveying, including trough chain conveyors, bucket elevators, screw conveyors, silo containers, BIG-BAG filling and emptying stations, micro-dosing systems as well as shut-off and dosing gates. In addition to conveying and dosing technology, Hartgen builds special machinery such as pallet turners, lifting tables and asphalt cannons. The value chain includes in-house design, steel and sheet metal fabrication with an NC-controlled sheet metal shear, press brake and plasma cutter, as well as welding using MIG/MAG, TIG, pulsed and stud welding processes. Materials processed include structural steels, wear-resistant steels, heat-resistant steels, duplex and rust- and acid-resistant stainless steels, as well as aluminium. The solutions are used, among others, in grain and feed processing and in the brick, food, chemical and pharmaceutical industries. Own assembly teams install and maintain the systems worldwide up to commissioning.
- Site
- Hude
- Processes
- Steel and sheet metal fabrication (trough chain conveyors, bucket elevators, elevators, container, Cutting on NC-controlled sheet metal shear (3 m cutting length, up to 12 mm mild steel / 8 mm, Bending on NC-controlled press brake (4 m length, 175 t pressing force), Plasma cutting, MIG/MAG welding, TIG welding, Pulsed welding processes, Stud welding (3 mm to 22 mm diameter)
- Materials
- Unalloyed structural steels S235, Unalloyed structural steels S355, Wear-resistant steel (e.g. Hardox), Heat-resistant structural steel, Duplex steel, Rust- and acid-resistant steel, Heat-resistant stainless steel, Aluminium
- Certificates
- EN 1090-2 (certified welding shop)
- Founded
- 1987
- Employees
- ~30
- Industries
- Conveying technology/bulk solids technology, Mill construction, Grain and feed processing, Brick industry, Food industry, Chemical industry
- 01
In-house design (3-D design, manufacturing and assembly drawings)
- 02
Sheet metal cutting (NC shear, plasma cutter)
- 03
Bending (NC press brake 175 t)
- 04
Welding (MIG/MAG, TIG, pulsed, stud welding)
- 05
Assembly, maintenance, servicing and commissioning
Materials and processes
Unalloyed structural steel S235
Standard material for steel constructions and painted system versions.
Unalloyed structural steel S355
Higher-strength structural steel for load-bearing constructions in steel and sheet metal fabrication.
Wear-resistant steel
For highly stressed components in bulk solids and construction materials processing.
Heat-resistant structural steel
For temperature-stressed components.
Duplex steel
For wear- and corrosion-stressed conveying systems.
Rust- and acid-resistant steel
For food and pharmaceutical industry systems, pickled and passivated.
Rust- and acid-resistant steel
For corrosion-stressed components with ground surfaces.
Rust- and acid-resistant steel
For components in food and pharmaceutical technology.
Heat-resistant stainless steel
For temperature-stressed system parts.
Aluminium
For lightweight constructions in plant engineering.
Site
Hude
DEHeadquarters, design and manufacturing
- Lot size
- Single units and custom-made products, small series
- Materials
- S235, S355, Hardox, 16Mo3, 1.4462, 1.4301, 1.4571, 1.4541, 1.4841, aluminium
- NC-controlled sheet metal shear (3 m, up to 12 mm mild steel / 8 mm stainless steel)
- NC-controlled press brake (4 m, 175 t)
- Plasma cutter
- Welding systems MIG/MAG, TIG, pulsed and stud welding (3–22 mm)
Components and systems
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Steel and sheet metal fabrication (trough chain conveyors, bucket elevators, elevators, containerForming | – | – | – | – | S235, S355, Hardox, 16Mo3, 1.4462, 1.4301, 1.4571, 1.4541, 1.4841, Aluminium |
| Cutting on NC-controlled sheet metal shear (3 m cutting length, up to 12 mm mild steel / 8 mmMachining | – | 3 m | – | – | Mild steel, Stainless steel |
| Bending on NC-controlled press brake (4 m length, 175 t pressing force)Forming | – | 4 m | – | – | – |
| Plasma cuttingMachining | – | – | – | – | – |
| MIG/MAG weldingJoining | – | – | – | – | Steel, Stainless steel, Aluminium |
| TIG weldingJoining | – | – | – | – | Steel, Stainless steel, Aluminium |
| Pulsed welding processesJoining | – | – | – | – | – |
| Stud welding (3 mm to 22 mm diameter)Joining | – | – | 3 mm – 22 mm | – | – |
| In-house design (3-D constructions, drawings for manufacturing and assembly)Engineering | – | – | – | – | – |
| Assembly, maintenance and servicing (including assembly management and commissioning, worldwide)Assembly | – | – | – | – | – |
| Special machinery construction (asphalt cannon, lifting tables, pallet turners)Assembly | – | – | – | – | S235, 1.4301, 1.4571 |
| Conveying & dosing (systems for bulk and unit load conveying, throughput rates up to 100 t/h viaAssembly | – | – | – | – | Mild steel, Stainless steel, wear-resistant materials, duplex steels |
| BIG-BAG filling station (with weighing, load capacity 1.0–1.2 t, weighing range max. 1200 kg)Assembly | – | approx. 1700 mm × approx. 1550 mm × approx. 5300 mm | 2.0 t | – | S235, 1.4301, 1.4571, St |
| BIG-BAG emptying station (load capacity 2.0 t, dust-free emptying, with electric chain hoist)Assembly | – | approx. 1800 mm × approx. 1800 mm × approx. 5000 mm | 2.0 t | – | S235, 1.4301, 1.4571, St |
| Micro-dosing systems (micro-component dosing with 6 or 16 cells, weighing with 5 gAssembly | 5 g repeatability | – | – | – | – |
| Shut-off and dosing gates (cell, conveyor, container outlet gates, rapid-closing andAssembly | – | – | – | – | – |
| Samplers (pneumatic 0.04/0.7/1.0 l per sampling stroke, manual and electric-motor driven)Assembly | – | – | – | – | – |
| Weighing (container scale, BIG-BAG filling with weighing, mobile scale)Assembly | – | – | – | – | – |
| Mixing (cone mixers, mix screws, mix screws with drying and cooling)Assembly | – | – | – | – | – |
| Sampling (sample collectors, samplers)Assembly | – | – | – | – | – |
3 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| NC-controlled sheet metal shear (cutting length 3 m, up to 12 mm mild steel / 8 mm stainless steel) | – | – | 3 m cutting length | – | Hude |
| NC-controlled press brake (4 m length, pressing force 175 t) | – | – | 4 m bending length, 175 t pressing force | – | Hude |
| Plasma cutter | – | – | – | – | Hude |
Additional services
Reference customers
Quality
Hartgen operates as a recognized certified welding shop in accordance with DIN EN 1090-2; a welding engineer is responsible for implementing the standard requirements and quality demands. Manufacturing follows the principle that quality is created directly in production.
| Evidence | Hude |
|---|---|
| EN 1090-2 (certified welding shop) |
Company history
- 1987
Company founded by Rudolph and Ralf Hartgen; first productions (hoppers and containers) in a garage
- 1997
Helma Hartgen takes over the management
- 2010
Helma Hartgen named “Entrepreneur of the Year” by the handwerk magazin
- 2012
Construction of an additional production hall of 980 sqm
- 2017
Jan Kretschmer becomes shop foreman and trainer
- 2020
Steffen Hartgen joins the family business (project engineering and sales)
- 2024
Renewed recognition as a certified welding shop in accordance with EN 1090-2