Precision Thread Whirling Machines

High-Speed Solutions for Helical Threads, Ball Screws, and Complex Components

Leistritz whirling machines are engineered to deliver exceptional precision in the production of complex components such as helical threads, ball screws, trapezoidal threads, and gear worms. These machines are a key asset in CNC machining and advanced industrial manufacturing, particularly in aerospace, automotive, and other sectors where high-performance parts are essential.

Whirling is a specialized process for producing intricate thread profiles. It involves an eccentrically positioned whirling ring that rotates around a slowly turning workpiece, effectively cutting away material without the need for coolant. This method ensures heat dissipation through the chips, preventing stress on the workpiece and allowing for precise, energy-efficient production. Leistritz machines are capable of both internal and external whirling, giving manufacturers the flexibility to produce complex internal thread profiles, such as those found in pump spindles, as well as external threads like lead screws and ball screws. This versatility makes them ideal for creating durable parts with superior surface finishes, used in precision manufacturing.

Leistritz’s LWN series are highly regarded for their ability to handle complex, large-scale manufacturing while maintaining energy efficiency. These machines are widely used for producing parts like ball screw spindles and gear worms, offering a cost-effective solution for companies aiming to streamline custom manufacturing processes with advanced CNC machining equipment.

Industries / Applications

Whirling technology can be applied across a variety of industries that require precision in the manufacturing of complex threaded components.

  1. Aerospace: Whirling machines are essential for producing high-precision components used in aircraft mechanisms, flight control systems, and landing gear assemblies.
    Components: Helical threads, ball screws, lead screws, gear worms.
  2. Automotive: These machines help manufacture critical parts such as transmission shafts, gear worms, and components that ensure vehicle reliability and efficiency.
    Components: Trapezoidal threads, drive shafts, gear worms, power transmission components.
  3. Medical Devices: In the medical industry, whirling is used to produce precise screws and components for surgical tools and bone implants.
    Components: Medical screws (for surgical tools and implants), ball screws, precision lead screws.
  4. Oil & Gas: Whirling machines produce vital components for pumps, drilling equipment, and systems that operate under high pressure.
    Components: Pump spindles, threaded shafts, worm gears.
  5. Energy and Power Generation: Whirling technology aids in manufacturing high-precision turbine screws and other components for energy-efficient power systems.
    Components: Turbine screws, helical threads, power transmission components.
  6. Manufacturing of Industrial Machinery: These machines are crucial for producing auger screws, eccentric screws, and worm gears used in heavy industrial machinery and material processing.
    Components: Eccentric screws, auger screws, worm gears.
  7. Marine Engineering: Whirling technology is used to manufacture components for marine propulsion systems that need to withstand harsh environmental conditions.
    Components: Lead screws, threaded shafts, power transmission components.
  8. Robotics: Whirling machines create precision screws and threaded components that are essential for robotic motion, actuators, and control systems.
    Components: Precision lead screws, ball screws, actuator screws.
  9. Construction Equipment: These machines manufacture durable components such as shafts and power transmission parts for use in heavy construction machinery.
    Components: Drive shafts, power transmission components, helical threads.
  10. Precision Tooling and Engineering: Whirling is used to produce highly accurate threads and screws for precision tools and specialized engineering equipment.
    Components: Multi-start threads, ball screws, precision lead screws.
Leistritz LWN 65

LWN 65

The LWN 65 is designed for high-volume production, making it ideal for manufacturing industries requiring fast, efficient output. With a quick tool change system and high durability, this machine maximizes uptime and productivity, reducing production costs for customers handling workpieces with small diameters.
Leistritz LWN 90

LWN 90

The LWN 90 provides unparalleled versatility, handling a wide range of workpiece sizes. With its high machine rigidity and optional automation features, it is perfect for industries such as automotive and aerospace, where precision and durability are paramount. This machine reduces manual labor while delivering high-quality threads.
Leistritz LWN 90 S

LWN 90 S

Specially designed for machining ball screws, the LWN 90 S offers extreme precision and productivity. Its ergonomic design and production-oriented features help manufacturers reduce errors and improve accuracy, making it a great choice for businesses that require finely detailed screw profiles.
Leistritz LWN 100

LWN 100

The LWN 100 excels in processing complex screws twice as fast as other methods, making it ideal for industries needing high-speed, high-precision manufacturing. Its ability to handle varied workpiece diameters with fine accuracy ensures reduced production time while maintaining exceptional surface finishes.
Leistritz LWN 120

LWN 120

The LWN 120 offers universal application for high-speed cutting with an emphasis on finish machining. With a wide swiveling angle and the capability to handle almost all thread profiles, this machine is excellent for customers who need flexibility in their production while ensuring high-quality results.
Leistritz LWN 120 IW

LWN 120 IW

Designed for internal whirling, the LWN 120 IW is perfect for manufacturers requiring high-precision inner profiles. Its ability to handle both hard and soft materials provides versatility, while its rigid machine construction ensures high precision and reliability in critical applications.
Leistritz LWN 160 HP

LWN 160 HP

The LWN 160 HP is engineered for hard whirling, ideal for manufacturers needing high-precision lead screws and other intricate threaded components. Its high-speed capabilities and enhanced accuracy make it a cost-effective alternative to grinding, tripling productivity without sacrificing quality.
Leistritz LWN 180 ES

LWN 180 ES

Designed for the machining of eccentric screws, the LWN 180 ES provides unmatched surface quality in minimal machining time. This machine is perfect for customers who prioritize speed and surface finish in their production processes, particularly in industries like automotive or medical equipment manufacturing.
Leistritz LWN 190

LWN 190

The LWN 190 stands out for its modular design, offering flexibility and efficiency in producing complex parts like pump spindles and plasticizing screws. Customers benefit from its ability to handle large workpieces and highly specialized thread profiles, ensuring adaptability in various production environments.
Leistritz LWN 300 HP

LWN 300 HP

The LWN 300 HP is designed for heavy-duty machining of large screws and spindles. Its modular design and capacity to handle large workpieces make it a go-to for industries like aerospace, automotive, and energy that require custom, high-precision components at scale.