Technical springs
Automotive
WIRE BENDING PARTS
WIRE BENDING PARTS ARE PRODUCED IN NEARLY ALL TYPES ACCORDING TO CUSTOMER REQUIREMENTS AND DRAWINGS
Advantages
- High power and torque transmission in a small installation space
- Geometry can be flexibly adapted to the installation space
Innovation
- Calculation of torques even with complex geometry
- Increase of lifetime thanks to special production processes
Production
- CNC controlled bending head machines
- multi-slide machines with permanent tools
- processing of round wire and shaped wire
- surface coating according to customer requirement
Automotive
TORSION SPRING
Torsion springs are coiled or wound wire springs.
Advantages
- High reliability under static and dynamic loads
- Large range of variants and dimensions available
- Cost-effective manufacturing
- High application knowledge which can be transferred into the spring design.
Innovation
- Development of a cutting method for the production of a plane cutting edge which is perpendicular to the wire axis (EOS process)
- Development of a stress-optimized production for springs loaded in opening direction which allows a material saving of up to 30% compared to standard springs.
- Development of an extensive calculation program for dynamic design of torsion springs, including assembly simulation (SpringDesigner)
Production
- In-house machine construction supports in case of automated production processes and produces special solutions to increase the performance of torsion springs
- In-house prototype shop
- Fatigue strength tests
- In-house process development
Automotive
COMPRESSION SPRING
COMPRESSION SPRINGS ARE CHARACTERIZED BY A COMBINATION OF MATERIAL, PRODUCTION DEPTH AS WELL AS THE ABILITY TO MANAGE EXTREME REQUIREMENTS
Advantages
- High energy efficiency
- Cost effective manufacturing
- Large range of variants and dimensions available
- Use of special treatments (e.g. heat treatments and coatings)
- High application knowledge which can be transferred into the spring design.
Innovation
- Development of stress-optimized manufacturing (SOF)
- Development of nitriding treatments for wear protection and lifetime enhancement
- Development of springs optimized in terms of transverse force
- DMC laser coding
- Development of a comprehensive calculation program for the dynamic design of compression springs (SpringDesigner).
Production
- In-house mechanical engineering supports automated production processes and manufactures special solutions for increasing the performance of compression springs
- In-house prototype shop
- In-house process development
Automotive Industry
HOSE CLAMPS
Hose clamps are assembled in servo systems, fuel systems and intake air systems.
Advantages
- Uniform surface pressure due to perfect roundness
- Self-adjusting effect
Innovation
- Optimum corrosion protection due to coating
- Preloaded hose clamp with various locking systems
Production
- Dynamic simulation
- In-house prototype shop
Automotive Industry
PISTON RING EXPANDER
IN THE PRODUCTION OF PISTON RING EXPANDERS SCHERDEL IS A TECHNOLOGICAL PIONEER AND GLOBAL MARKET LEADER
Advantages
- Many years of experience in production and design
- International structures
- Very small spring index
- Relaxation resistance
- Diameter of 45–1000mm
- Wear protection options
Innovation
- Gas-nitrided, hard surface for stainless steel
- Partial nitrating
- Small diameters with high loads
Production
- Individual design and development
- Almost all options can be produced in-house
- Wear test
- Relaxation tests
- Special machines developed in-house
Automotive
CONSTANT FORCE AND POWER SPRINGS
SPIRALLY COILED METAL STRIP
Advantages
- Various mechanical components in the system can be omitted
- Power springs create a flat torque characteristic
- Triebfedern haben einen großen Arbeitsbereich
- Use as maintenance-free system possible
Innovation
- Material edge processing which is mandatory for the function of the locking system could be developed together with the material supplier
- Poduction of difficult spring geometries without the use of an inductive annealing process in certain areas of the power spring
Production
- Cross-curved production process is applied
- Compliance with very strict tolerance frames during production
- Use of robot handling systems
- 100% camera measurement of individual characteristics during assembly
- Assembly of individual components
Automotive
SPIRAL SPRINGS
SPIRAL SPRINGS FOR CAM SHAFT ADJUSTER WERE ACCOMPANIED FROM PRODUCTION TO MARKET MATURITY
Advantages
- Increase of the adjustment speed in NWV systems
- Flexible production possible with regard to geometry
Innovation
- A separate development directive for spiral springs has been created for design purposes
- Preparation of exact friction models for simulation (FEM calculation)
- Dynamic design is possible with the highest accuracy
Production
- Combined production processes such as forming and shot peening
- 100% camera measurement of individual characteristics
- Use of inductive annealing process in specific areas of the spring
- Production locations in Europe, USA, China
Automotive
DISC SPRING
DISC SPRING ARE SPRING ELEMENTS WITH BIG LOAD-DEFLECTION RATIO
Advantages
- Small adjusting travel, high load
- Material selection adjusted to the requirements
- Degressive to load-decreasing characteristic curve
Innovation
- Bainitic hardening
- Fine-blanking process for disc production
- Tempering of individual parts
Production
- Forming simulation
- In-house prototype shop
- Fatigue strength tests
- Relaxation tests
Automotive
VALVE SPRING
VALVE SPRINGS ARE HELICAL COMPRESSION SPRINGS FOR DYNAMIC STRESS UNDER INCREASED TEMPERATURE
Advantages
- Many years of experience
- Large market share
Innovation
- SOF process
- DMC laser coding
Production
- Dynamic simulation
- In-house prototype shop
- Fatigue strength tests
- Relaxation tests
Automotive
WAVE SPRING
WAVE SPRINGS ARE COILED OR STAMPED ELASTIC PARTS
Advantages
- Very small axial assembly space (up to 50% less compared with helical compression springs)
- Various design options
- High application knowledge which can be transferred into the spring design.
Innovation
- Development of a complex calculation program for the design of non- linear wave spring systems (SpringDesigner)
- Highly efficient welding of wave spring rings by means of laser
Production
- In-house machinery division supports automated production processes and provides special solutions for the production of wave springs
- In-house process development
Automotive
Tension Springs
TENSION SPRINGS ARE COIL SPRINGS WHICH COUNTERACT THE AXIAL FORCE DIRECTED AT THE EXTENSION OF THE SPRING
Advantages
- Very high initial tension FO
- Defined setting losses in the function
- 100% load control within the production process
Innovation
- Realized as an assembly including all associated extension parts
- Stress-optimized production
Production
- Production of prototypes on series machines
- Wide range of material dimensions and qualities