Used NILES ZE800 Gear Grinder: High-Precision German Engineering for Gear Manufacturing

Author:JINYI           Date:2026-02-08

Used NILES ZE800 Gear Grinder

Specification Value
Stock Number 66117
Brand NILES (Germany)
Model ZE800
Max. Workpiece Diameter 800 mm
Max. Module 16 mm
Main Motor Power 1 - 32 kW
CNC Control System Siemens 840D

1. Equipment Overview: The Benchmark of Gear Grinding

The NILES ZE800 profile gear grinding machine is an iconic piece of German engineering, specifically designed for those who demand the highest levels of precision and reliability in gear production. NILES, a brand synonymous with quality in the global machine tool industry, developed the ZE series to address the complex requirements of profile grinding. This specific used unit (Stock No. 66117) offers a rare opportunity to acquire high-end German technology at a fraction of the cost of a new machine.

Engineered for versatility, the NILES ZE800 is capable of handling gears up to 800mm in diameter. Its robust construction ensures thermal stability and vibration damping, which are critical when achieving the sub-micron tolerances required for DIN 3 or AGMA 14 quality gears. Whether you are producing external spur or helical gears, this machine provides the technical foundation for world-class manufacturing.

2. Technical Parameter Analysis: Power and Precision

High-Capacity Machining Specs

With a maximum workpiece diameter of 800mm and a massive module capacity of 16mm, the NILES ZE800 is positioned perfectly for heavy-duty industrial applications. The ability to grind modules up to 16mm means the machine can handle large-tooth profiles typically found in mining and energy transmission gearboxes. The mechanical rigidity allows for high stock removal rates during roughing, while the high-resolution feedback systems ensure flawless finishing.

Siemens 840D: The Brain of the Machine

The integration of the Siemens 840D CNC system provides a sophisticated user interface and powerful computational capabilities. This system allows for the synchronization of the grinding wheel movement with the workpiece rotation with extreme accuracy. The 840D's open architecture also allows for customized grinding cycles and easy integration of measuring probes for on-machine inspection.

Dynamic Power Range

The main motor delivers a power output ranging from 1 to 32 kW. This wide power spectrum is essential for maintaining constant peripheral speeds of the grinding wheel across different materials and wheel diameters. The 32 kW peak power ensures that even the most aggressive grinding passes do not compromise spindle speed stability, effectively preventing thermal damage to the gear teeth.

3. Industrial Applications and Success Cases

The NILES ZE800 is a versatile workhorse found in many critical industries. In the **Wind Energy** sector, it is used for grinding the planetary gears of wind turbine gearboxes, where durability over a 20-year lifespan is mandatory. In the **Railway** industry, the ZE800 ensures that traction gears operate with minimal noise and vibration, increasing passenger comfort and reducing maintenance costs.

Furthermore, in **Aerospace and Defense**, the machine's ability to hold tight tolerances on complex helical profiles makes it ideal for helicopter transmission components. The NILES ZE800's flexibility also extends to the 'Industrial Automation' sector, where high-precision racks and pinions are required for robotic movements.

4. Maintenance History and Machine Condition

This used NILES ZE800 has been maintained according to a rigorous schedule. The guideways show minimal wear, and the lubrication system has been consistently monitored to prevent friction-related accuracy loss. The Siemens 840D control unit has been kept in a climate-controlled environment, ensuring the longevity of its electronic components.

Before being offered for sale, the machine underwent a series of geometric tests including spindle runout and axial alignment checks. All parameters remain well within the acceptable range for high-precision grinding. The cooling and filtration unit is fully functional, capable of handling the high-volume oil flow required for efficient heat dissipation during the grinding process.

5. Cost-Effectiveness and Investment ROI

Purchasing a used NILES ZE800 represents a strategic financial decision for any gear manufacturer. A new machine of this caliber often involves a seven-figure investment and a lead time exceeding one year. By choosing this used unit (66117), you gain:

  • "Immediate Availability": Skip the long manufacturing wait times and start production in weeks.
  • "Proven Reliability": German-built NILES machines are known to last for decades; this machine has many productive years left.
  • "Capital Preservation": The significantly lower purchase price allows for a faster Return on Investment (ROI) and frees up capital for other operational needs.

6. Frequently Asked Questions (FAQ)

Q1: What is the maximum module this machine can grind?

A: The NILES ZE800 can grind a maximum module of 16mm, making it suitable for both standard and large-scale industrial gears.

Q2: Does the Siemens 840D support English language?

A: Yes, the Siemens 840D is a global standard and supports multiple languages including English, German, and Chinese for easy operation worldwide.

Q3: Can this machine perform on-board measurement?

A: Yes, the ZE800 typically features an integrated measuring probe that allows for the inspection of the gear profile and lead without removing the workpiece from the machine.

Q4: What are the power requirements for the main spindle?

A: The machine features a powerful main motor with a range of 1-32 kW, allowing for both delicate finishing and heavy-duty stock removal.

Q5: Is the machine origin confirmed as Germany?

A: Yes, this NILES ZE800 was manufactured in Germany, ensuring it adheres to the highest standards of European machine tool construction.

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