Mechanical engineering, contract manufacturing and tool turner ProTECH – from design through welding and CNC large-part machining to painting
Leiritz Maschinenbau GmbH
PappenheimNew on Amplifa
About Leiritz Maschinenbau
Leiritz Maschinenbau GmbH is a medium-sized mechanical engineering company based in Pappenheim in Middle Franconia, between Nuremberg, Augsburg, Ingolstadt and Stuttgart. The company manufactures special-purpose machines, fixtures, production equipment, load-handling attachments as well as its own product line of tool turners, tool movers and coil turners ProTECH for loads up to 80 tonnes. In addition to complete fabrication of equipment, plants and special-purpose machines, Leiritz offers contract manufacturing: technical clarification, material procurement, welded assembly fabrication as a certified welding specialist (MIG, MAG, stick electrode, stud welding), CNC large-part machining with travel paths up to 8,500 mm, blasting and painting as well as assembly and commissioning. Materials processed include structural steels, fine-grain structural steels, CrNi steels and aluminium materials. Customers come from industries such as injection moulding and mould making, toolmaking, mechanical engineering, rail vehicle construction, defence technology, nuclear technology and the chemical industry. The solutions are in use worldwide.
- Site
- Pappenheim
- Processes
- Welded assembly fabrication (MIG, MAG, stick electrode, stud welding), CNC large-part milling (travelling-column milling centres), CNC turning, 5-axis simultaneous CNC milling, Conventional boring mill machining, Sheet metal working / Folding (series), Pressing (100-tonne underfloor press), Painting (airless with electrostatics)
- Materials
- Structural steels, Fine-grain structural steels, CrNi steels, Aluminium materials, Special material for 1100-kV connection pieces
- Certificates
- ISO 9001:2015, QUB – Quality association of environmentally conscious companies, ISO 3834-2, EN 1090-2 EXC4 (Steel), EN 1090-3 EXC4 (Aluminium), EN 15085-2 CL 1, DIN 2303 Q2 BK 1 (defence products), ISO 19443:2018 (nuclear orders), KTA 1401:2017 (nuclear orders), Certified company under §62 WHG, Non-destructive testing VT 2, Non-destructive testing PT 2, BSFZ, Bavarian Environment and Climate Pact, DIN 2303 Q2 BK 1, ISO 19443:2018, KTA 1401:2017, VT 2 / PT 2 (NDT), QUB environmental management
- Industries
- Plastics processing industry (injection moulding/mould making), Toolmaking, Metal processing industry, Mechanical engineering, Open-die forging, Die casting
- 01
Design / Project planning (Autodesk Inventor)
- 02
Material procurement / Material re-stamping (TÜV SÜD)
- 03
Sheet metal working / Folding
- 04
Welded assembly fabrication
- 05
CNC large-part machining (milling/turning)
- 06
Blasting
- 07
Painting
- 08
Assembly / Commissioning
- 09
Quality assurance / Dimensional documentation / Documentation
Materials & Processes
Structural steels
Base material for welded assemblies, machine frames and steel constructions.
Fine-grain structural steels
High-strength materials for highly stressed welded constructions and heavy-duty assemblies.
CrNi steels
For corrosion-exposed components and requirements e.g. in the food and chemical industries.
Aluminium materials
Lightweight constructions, certified to EN 1090-3 EXC4.
Site
Pappenheim
DECompany headquarters, manufacturing, design, CNC machining, welding fabrication, painting, blasting
- Part weight / size
- Assemblies up to 20 t crane capacity
- Lot size
- Single parts to series (folding series)
- Materials
- Structural steels, fine-grain structural steels, CrNi steels, aluminium materials
- CNC travelling-column milling machine CORREA AXIA (8,500×3,500×1,750 mm, 7 axes)
- CNC travelling-column milling machine CORREA NORMA L (6,000×1,500×1,250 mm, 5 axes)
- Travelling-column milling machine 7,000×3,000×1,500 mm, 7 axes
- Milling machining centre 2,000×900×850 mm
- 5-axis simultaneous machining centre (630×530×465 mm)
- Lathe ø 560 mm / 2,000 mm
- Press brake 175 t
- Underfloor press 100 t
- Blasting hall 6×3×3 m
- Painting hall 14×4×3.5 m with airless electrostatic system and 2K mixing unit
- 3D metrology (mobile)
- 8 Autodesk Inventor CAD workstations
Products & Components
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Welded assembly fabrication (MIG, MAG, stick electrode, stud welding)Joining | – | – | – | – | Structural steels, Fine-grain structural steels, CrNi steels, Aluminium materials |
| CNC large-part milling (travelling-column milling centres)Machining | – | 8,500 mm × 1,750 mm | – | – | Structural steels, Fine-grain structural steels, CrNi steels, Aluminium materials |
| CNC turningMachining | – | 2000 mm × ø 560 mm | – | – | – |
| 5-axis simultaneous CNC millingMachining | – | 630 mm × 530 mm × 465 mm | – | – | – |
| Conventional boring mill machiningMachining | – | 1100 mm × 610 mm × 610 mm | – | – | – |
| Sheet metal working / Folding (series)Forming | – | – | – | – | Sheet steel |
| Pressing (100-tonne underfloor press)Forming | – | – | – | – | – |
| Painting (airless with electrostatics)Surface | – | 14 m (painting hall) × 4 m × 3.5 m | – | – | – |
| Blasting (blasting hall 6x3x3 m, SA 2 1/2)Surface | – | 6 m × 3 m × 3 m | – | – | – |
| Electropolished special fixtures (electro-galvanizing of load-handling attachments)Surface | – | – | – | – | – |
| CAD design / Project planning (Autodesk Inventor)Engineering | – | – | – | – | – |
| Special-purpose machine building / Fixture building / Production equipment buildingEngineering | – | – | – | – | – |
| Assembly, repairs and commissioningAssembly | – | – | – | – | – |
| Non-destructive testing (VT 2, PT 2), dimensional documentation, 3D metrologyTesting | – | – | – | – | – |
| Material procurement / Material re-stamping (TÜV SÜD agreement)Engineering | – | – | – | – | – |
16 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| CNC travelling-column milling machine | NICOLAS CORREA CORREA AXIA | 1 | X8500 x Y1750 x Z3500 mm, continuously adjustable angle head, rotary table, 7 axes | 2020 | Pappenheim |
| CNC travelling-column milling machine | NICOLAS CORREA CORREA NORMA L | 1 | X6000 x Y1250 x Z1500 mm, continuously adjustable angle head, 5 axes | 2017 | Pappenheim |
| Travelling-column milling machine | – | 1 | 7000x3000x1500 mm, universal angle head with 1° indexing, rotary table, 7 controlled axes | 2013 | Pappenheim |
| Milling machining centre | – | 1 | 2000x900x850 mm | 2008 | Pappenheim |
| 5-axis machining centre (simultaneous) | – | 1 | 630x530x465 mm | 2021 | Pappenheim |
| Lathe | – | – | ø 560 mm / length 2000 mm | – | Pappenheim |
| Press brake | – | 1 | 175 tonnes pressing force | – | Pappenheim |
| Underfloor press | – | 1 | 100 tonnes | 2024 | Pappenheim |
| Blasting hall | – | 1 | 6x3x3 m | 2016 | Pappenheim |
| Painting hall with airless unit (electrostatics) and 2K mixing unit | – | 1 | 14 x 4 m, height 3.5 m | 2000 | Pappenheim |
| Tool turner / tool mover ProTECH (with/without drive) | Leiritz ProTECH | – | Load capacity up to 80 tonnes (variants from 1 tonne) | – | Pappenheim |
| Coil turner ProTECH | Leiritz ProTECH | – | for coils and cylindrical workpieces | – | Pappenheim |
| Heavy-duty telescopic lifting systems (lifting columns, master & slave) | Leiritz | – | Telescopic hydraulic cylinder technology | – | Pappenheim |
| Lift-and-tilt system (single-column technology) | Leiritz | – | Load capacity up to 1,000 kg, variable tilting height, speed 2 m/min, tilt angle 130–140 degrees | – | Pappenheim |
| Welding and assembly manipulators | Leiritz | – | – | – | Pappenheim |
| 3D metrology (mobile measuring) | – | – | – | 2022 | Pappenheim |
Additional services
Reference customers
Quality & Certifications
Leiritz manufactures as a certified welding specialist to ISO 9001:2015 with numerous welding and manufacturer qualifications (ISO 3834-2, EN 1090-2/3 EXC4, EN 15085-2 CL 1, DIN 2303 Q2 BK 1, ISO 19443, KTA 1401). Quality assurance includes non-destructive testing (VT 2, PT 2), mobile 3D metrology, dimensional documentation and complete documentation in German and English.
| Evidence | Pappenheim |
|---|---|
| ISO 9001:2015 | |
| ISO 3834-2 | |
| EN 1090-2 EXC4 (Steel) | |
| EN 1090-3 EXC4 (Aluminium) | |
| EN 15085-2 CL 1 | |
| DIN 2303 Q2 BK 1 | |
| ISO 19443:2018 | |
| KTA 1401:2017 | |
| Certified company under §62 WHG | |
| VT 2 / PT 2 (NDT) | |
| QUB environmental management |