Machinery and plant engineering for stock preparation with in-house industrial manufacturing in steel and stainless steel
Lange GmbH DIM
NattheimNew on Amplifa
About Lange GmbH DIM
Lange GmbH DIM, based in Nattheim near Heidenheim, specializes in machinery and plant engineering, maintenance and process optimization for stock preparation in the paper industry. Founded in 2009 by Werner Lange, the company builds energy-efficient rotors, screen baskets and individual machines, overhauls existing equipment such as pulpers, sorters, refiners and pumps, and carries out conversions up to surface treatment. Industrial manufacturing includes welded assemblies in steel and stainless steel up to 20 t (EN 1090-2 certified), 5-axis milling, turning, round-table surface grinding, plasma cutting, 4-roll plate bending, slotting, slot broaching, dynamic balancing and robotic welding (PTA/MIG/MAG). For wear protection, the company offers hardfacing, ceramic and basalt linings as well as hard chrome plating. Manufacturing on 2,000 m² of production space with overhead cranes up to 20 t also serves as contract manufacturing for machinery and plant engineering in single-item and small-series production.
- Site
- Nattheim
- Processes
- Welded assemblies (welded constructions to drawing), Robotic welding PTA (powder plasma surfacing), Robotic welding MIG/MAG, Hardfacing (hard facing as wear protection, cladding of rotors and tanks), Machining (turning, conventional lathes), Milling (5-axis milling technology, complex 3D contours), Dynamic balancing (mechanical balancing), Slotting (keyway slots)
- Materials
- Steel (carbon steel), Stainless steel (CrNi), Cast iron (GG), Aluminum oxide ceramic, Silicon carbide ceramic, Basalt, Structural steel (carbon steel)
- Certificates
- EN 1090-2
- Founded
- 2009
- Industries
- Paper industry (stock preparation), Machinery and plant engineering, Industrial manufacturing
- 01
Engineering and design
- 02
Plasma cutting and sawing
- 03
Welded assemblies / robotic welding PTA, MIG/MAG
- 04
Machining (milling, turning, grinding, slotting, slot broaching)
- 05
4-roll plate bending
- 06
Heat treatment/no information
- 07
Wear protection and surface technology (hardfacing, ceramic/basalt,
- 08
Dynamic balancing
- 09
3D measurement and inspection reports
- 10
On-site assembly and maintenance
Materials and Processes
Structural steel (carbon steel)
Base material for welded constructions, plasma cutting up to 100 mm and hardfacing.
Stainless steel (CrNi)
Core focus of processing for welded assemblies, plasma cutting up to 60 mm and glass bead blasting.
Cast iron (GG)
Welding platens and repair of cast components via cast-iron lock stitching.
Aluminum oxide ceramic
Wear-protection lining for cones, housings and tanks.
Silicon carbide ceramic
Hard lining for thick-stock cleaner components and reject cones.
Basalt
Lining as abrasion-resistant wear protection, e.g. for sorter housings.
Nattheim Site
Nattheim
DEProduction and administration
- Part weight / size
- up to 20 t welded assemblies
- Lot size
- Single-item and small-series production
- Materials
- Steel, stainless steel, cast iron
- 5-axis bed milling machine TRT3124HS (3000×1600×1500 mm, 15 t table load)
- Conventional lathe TUS 800 (Ø 890 mm, distance between centers 3000 mm)
- Round-table surface grinding machine Kehren RS12 (Ø 2100 mm, 4000 kg)
- 11-axis robotic welding system PTA/MIG/MAG with two workstations
- Plasma cutting machine (2000×3000 mm cutting area)
- 4-roll plate bending machine 4 Hell 2.5 x 30/25
- Balancing machine CEMB ZB3000/TC/GV (up to 5000 kg)
- Slotting and slot broaching machine
- Band saw Behringer HBP340A (Ø 320 mm)
- 3D measuring arm with laser scanner (10 m × 5 m)
- Overhead cranes 20 t and 5 t, crane height 4.5 m
- Cast-iron welding platen GG 4000×4000 mm
Components and Services
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Welded assemblies (welded constructions to drawing)Joining | – | – | 20 t | – | Steel (carbon steel), Stainless steel (CrNi) |
| Robotic welding PTA (powder plasma surfacing)Joining | – | 2500 mm × Ø 1750 mm (horizontal) × Ø 2000 mm (vertical) | – | – | Hardfacing/alloy powders (wear protection) |
| Robotic welding MIG/MAGJoining | – | 2500 mm × Ø 1750 mm × Ø 2000 mm | – | – | Steel, Stainless steel |
| Hardfacing (hard facing as wear protection, cladding of rotors and tanks)Surface | – | – | – | – | Hardfacing materials, Steel, Stainless steel |
| Machining (turning, conventional lathes)Machining | – | 3000 mm (distance between centers) × Ø 890 mm (over bed) × Ø 500 mm (over carriage) | – | Single-item production | Steel, Stainless steel, Castings |
| Milling (5-axis milling technology, complex 3D contours)Machining | Indexing 0.02 degrees | 3000 mm (X-axis) × 1600 mm (Y-axis) × 1500 mm (Z-axis) | 15,000 kg (table load) | – | Steel, Stainless steel |
| Dynamic balancing (mechanical balancing)Testing | – | 5000 mm (max. rotor length) × Ø 2000 mm (rotor) | 3000 kg (5000 kg with centered | – | Steel |
| Slotting (keyway slots)Machining | – | 600 mm (table longitudinal travel) × 500 mm (table cross travel) | – | – | Steel, Stainless steel |
| Slot broachingMachining | – | 500 mm (broaching length) × 2500 mm (max. workpiece size) | – | – | Steel, Stainless steel |
| Grinding (round-table surface grinding)Machining | very good accuracy and flatness | Ø 2100 mm (max. workpiece diameter) × 570 mm (max. grinding height) | 4000 kg | – | Steel, Stainless steel |
| Plasma flame cutting (cutting, fiber cutting, marking)Machining | – | 3000 mm × 2000 mm | – | – | Structural steel (up to 100 mm edge start / 50 mm pierce), Stainless steel (up to 60 mm edge start / 40 mm pierce) |
| 4-roll plate bending (sheet bending)Forming | – | 2.5 m (roll length/sheet width) | – | – | Sheets up to 30 mm sheet thickness, Steel, Stainless steel |
| Sawing (band saw)Machining | – | Ø 320 mm (round material) | – | – | Steel, Stainless steel |
| Basalt linings (wear protection)Surface | – | – | – | – | Basalt |
| Ceramic linings (aluminum oxide & silicon carbide ceramics)Surface | – | – | – | – | Aluminum oxide ceramic, Silicon carbide ceramic |
| Surface technology: 2-component paint coatings, hot-dip galvanizing, glass bead blasting,Surface | – | – | – | – | Steel, Stainless steel |
| Cast-iron lock stitching (repair of cracks in cast iron components)Assembly | – | – | – | – | Cast iron (GG) |
| 3D measuring arm (measurement, measurement logging, reverse engineering)Testing | 0.05 mm/10,000 mm (measuring field); 0.001 mm/1,000 mm | 10 m (horizontal measuring range) × 5 m (vertical measuring range) | – | – | Steel, Stainless steel |
| Maintenance / repair / overhaul of stock preparation machines (3D scanning technology,Assembly | – | – | – | – | Steel, Stainless steel, Cast iron |
| Assembly service (on-site disassembly/assembly, overhaul, machine relocation, maintenance contracts)Assembly | – | – | – | – | Steel, Stainless steel |
| Engineering / design / machinery and plant engineering (stock preparation, energy saving)Engineering | – | – | – | – | Steel, Stainless steel |
| Small-series and single-item production for machinery and plant engineeringMachining | – | – | – | Single item – Small series | Steel, Stainless steel |
14 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| 11-axis robotic welding system (PTA/MIG/MAG) with two workstations | – | 1 | Ø 1750 mm horizontal, Ø 2000 mm vertical, length 2500 mm | – | Nattheim |
| Manually guided PTA system | – | 1 | – | – | Nattheim |
| Conventional lathe | TUS 800 | – | Distance between centers 3000 mm, turning diameter over bed Ø 890 mm, over carriage Ø 500 mm | – | Nattheim |
| 5-axis bed milling machine | TRT3124HS | 1 | X 3000 mm, Y 1600 mm, Z 1500 mm, NC rotary table 2000 x 1600 mm, table load 15,000 kg, | – | Nattheim |
| Balancing machine | CEMB ZB3000/TC/GV | 1 | Rotor Ø 2000 mm, rotor weight up to 3000 kg (5000 kg centered), max. rotor length 5000 mm | – | Nattheim |
| Slotting machine | – | 1 | Stroke 500 mm, table diameter 620 mm, length 600 mm, cross 500 mm | – | Nattheim |
| Slot broaching machine | – | 1 | Broaching length 500 mm, slot width 3–70 mm, max. workpiece size 2500 mm | – | Nattheim |
| Round-table surface grinding machine | Kehren RS12 | 1 | Round table Ø 1200 mm, max. workpiece diameter Ø 2100 mm, max. workpiece weight 4000 kg, max. | – | Nattheim |
| Plasma cutting machine | – | 1 | Cutting area 2000 x 3000 mm, fiber cutting 3000 x 1500 mm | – | Nattheim |
| 4-roll plate bending machine | Hell 4 Hell 2.5 x 30/25 | 1 | Roll length 2.5 m, center rolls Ø 370 mm, side rolls Ø 290 mm, sheet thickness up to 30 mm | – | Nattheim |
| Band saw | Behringer HBP340A | 1 | Round material up to max. Ø 320 mm | – | Nattheim |
| 3D measuring arm (with laser scanner, portable) | – | 1 | Measuring range 10 m horizontal, 5 m vertical | – | Nattheim |
| Welding platen (GG, T-slots) | – | 1 | 4000 x 4000 mm (or 2000 x 8000 mm) | – | Nattheim |
| Overhead crane | – | – | Load capacity 20 t & 5 t, crane height 4.5 m | – | Nattheim |
Additional services
Reference customers
Quality and Certification
Certified welders according to EN 287-1 and DIN EN ISO 9606 with a welding engineer; measurement and documentation via mobile 3D measuring arm with laser scanner (0.001 mm/1000 mm in the core area). Certified according to EN 1090-2 for structural steelwork.
| Evidence | Nattheim |
|---|---|
| EN 1090-2 |
History
- 2009
Founding of W. Lange GmbH by Werner Lange after more than 20 years of Voith experience in stock preparation; inventor of the C-bar screen basket design.
- 2022
24,652 repair hours and 632 repairs performed.