Company Profile: Aerotech Peissenberg GmbH

Aerotech Peissenberg GmbH is a specialized high-tech manufacturer headquartered in Peissenberg, Bavaria, Germany. The company operates as a critical Tier-1 and Tier-2 supplier within the global aerospace and power generation supply chains. It is recognized for its expertise in the production of complex, high-precision rotating and static components for jet engines and industrial gas turbines. With a legacy rooted in precision engineering, the company provides end-to-end manufacturing solutions that integrate advanced machining, specialized thermal processes, and rigorous quality testing.

Core Business Operations

The primary focus of Aerotech Peissenberg is the machining and assembly of sophisticated engine parts that must withstand extreme thermal and mechanical stresses. The company bridges the gap between raw material (often high-strength forgings) and finished, flight-ready components. Their operations are characterized by the handling of "difficult-to-cut" materials, such as nickel-based superalloys (Inconel, Waspaloy), titanium alloys, and high-strength steels.

By maintaining a highly integrated production environment, Aerotech Peissenberg manages the entire lifecycle of a componentâ??from concurrent engineering and prototype development to serial production and lifecycle support.

Product Portfolio

Aerotech Peissenbergâ??s product range is concentrated on the most demanding sections of the aero-engine, specifically the compressor and turbine modules.

1. Rotating Components

Rotating parts are subject to immense centrifugal forces and must meet exacting balance and tolerance requirements. * Turbine Disks: High-pressure and low-pressure turbine disks that hold the turbine blades. These are manufactured with extreme precision to ensure structural integrity at high RPMs. * Compressor Disks: Multi-stage compressor disks used to compress intake air before combustion. * Blisks (Bladed Disks): Integrated components where the disk and blades are machined from a single piece of metal. This reduces weight and eliminates the need for blade attachments, improving aerodynamic efficiency. * Shafts: Central engine shafts that transmit power between the turbine and the compressor/fan sections. * Seal Retainers and Spacers: Critical hardware used to maintain pressure seals and proper spacing within the rotating assembly.

2. Static Components

Static parts provide the structural framework of the engine and direct airflow. * Turbine Housings and Casings: Large-scale, thin-walled structures that contain the engine's internal pressure and heat. * Guide Vanes and Diaphragms: Components designed to optimize the angle of airflow into the rotating stages. * Complex Rings: Large diameter rings used for structural support and sealing throughout the engine nacelle and core.

Specialized Manufacturing Services

The company differentiates itself through a suite of advanced manufacturing technologies designed to achieve geometries that conventional machining cannot.

Precision Machining

• CNC Turning and Milling: Multi-axis machining centers (up to 5-axis) capable of handling components with diameters exceeding 1,000mm.
• Grinding: High-precision profile and surface grinding to achieve micron-level tolerances on bearing seats and interface surfaces.
• Broaching: A specialized cutting process used to create the complex "fir-tree" or "dovetail" slots in turbine disks where blades are inserted.

Advanced Non-Conventional Machining

• Electrochemical Machining (ECM) and PECM: Aerotech Peissenberg is a leader in ECM technology. This process uses electrical current and chemical fluids to dissolve metal, allowing for the stress-free machining of ultra-hard alloys into complex shapes without thermal damage.
• Electrical Discharge Machining (EDM): Used for creating precise holes, slots, and cooling channels in hardened engine components.

Surface Treatment and Special Processes

• Shot Peening: A cold-working process used to impart compressive residual stress on the surface of components, significantly increasing their fatigue life.
• Deburring and Polishing: Utilizing both manual and automated vibro-finishing to ensure surface smoothness and remove stress-concentrating burrs.
• Heat Treatment: Specialized thermal processing to achieve the required metallurgical properties in the finished parts.

Quality Assurance and Testing

Given the safety-critical nature of aerospace components, Aerotech Peissenberg maintains a robust Quality Management System (QMS) certified to EN 9100 and ISO 9001 standards. Their facility is also NADCAP accredited for special processes such as NDT and heat treating.

• Non-Destructive Testing (NDT): Includes Fluorescent Penetrant Inspection (FPI), Magnetic Particle Inspection (MPI), and Ultrasonic Testing to detect internal or surface defects without damaging the part.
• Coordinate Measuring Machines (CMM): High-end metrology labs utilize automated CMMs to verify that 3D geometries match the digital blueprints exactly.
• Material Lab: On-site laboratory for verifying material composition, hardness, and grain structure.

Market Position and Strategic Impact

Aerotech Peissenberg supports the worldâ??s leading Original Equipment Manufacturers (OEMs), including Rolls-Royce, MTU Aero Engines, GE Aerospace, and Pratt & Whitney. Their components are found in the engines powering major commercial aircraft families, such as the Airbus A320neo (LEAP/GTF engines), the Boeing 787 Dreamliner, and various military platforms.

By focusing on the "hot section" and high-pressure stages of engines, the company occupies a high-barrier-to-entry niche. Their investment in sustainable manufacturing and Industry 4.0 automation ensures they remain competitive in an industry currently shifting toward more fuel-efficient, high-bypass geared turbofan technologies and future hybrid-electric propulsion systems.