USED DMG MORI EGV-3N

The DMG MORI EGV-3N is a compact, high-rigidity CNC vertical external grinding machine designed for high-precision machining of small to medium-sized components. Developed by Taiyo Koki under DMG MORI, it belongs to the EGV series, which focuses on efficient external and face grinding with excellent accuracy, stability, and space-saving design. It is widely used in industries such as automotive, bearing production, hydraulic components, and precision mechanical parts where consistent outer diameter (OD) quality is critical.

The EGV-3N offers a swing diameter of 380 mm and a maximum grinding diameter of 300 mm, with a maximum workpiece height of 300 mm and grinding length of 150 mm. It can handle workpieces up to approximately 200 kg, making it suitable for compact but rigid production setups. The work spindle operates at speeds up to 800 rpm, while the grinding spindle reaches around 3,700 rpm, ensuring stable material removal and consistent surface finish quality.

A key advantage of the EGV-3N is its vertical structure, which improves setup efficiency and enhances machining stability. The workpiece is seated naturally under gravity, reducing clamping distortion and improving roundness accuracy. In optimized conditions, the machine is capable of achieving sub-micron roundness, making it suitable for high-precision mass production.

The machine is designed for space efficiency, with a compact footprint of approximately 1,400 mm × 3,050 mm, allowing easy integration into production lines. It supports various automation options such as robotic loading systems, pallet handling, and in-process measurement systems, making it suitable for unattended or semi-automated operation.

Additional features include optional scale feedback systems, automatic dressing units, and flexible chucking systems such as air chucks and magnetic chucks. These enhancements improve productivity and maintain consistent accuracy across long production runs. Overall, the EGV-3N is a reliable and efficient external grinding solution for high-volume precision manufacturing.

DMG MORI EGV-3N SPECIFICATIONS

WHY BUY USED DMG MORI EGV-3N

Buying a used DMG MORI EGV-3N is a practical option for manufacturers seeking high-precision external grinding capability without the high cost of a new machine. One of the main advantages is affordability. New CNC grinding machines with similar precision levels and automation features can be expensive, while used units provide comparable performance at a significantly lower investment, making them ideal for small to mid-scale production setups.

Another important advantage is durability. Machines built by DMG MORI are engineered for long service life and high rigidity. The EGV-3N is designed specifically for stable external grinding, and its vertical structure reduces mechanical stress on components. Because grinding involves relatively low cutting forces, wear on structural elements is generally limited, allowing older machines to remain accurate if properly maintained.

Cutting time (machine hours) is one of the most important factors when evaluating a used EGV-3N. Machines with lower operating hours typically offer better spindle condition, improved axis precision, and longer remaining lifespan. However, higher-hour machines can still be valuable if they have been properly serviced, such as spindle rebuilding, guideway refurbishment, or CNC upgrades. Maintenance history is often more important than the machine’s age.

Another advantage is faster availability. Used machines are usually available immediately or with short lead times, unlike new machines that may require long manufacturing schedules. Many used EGV-3N units also come with automation systems, measurement devices, or tooling packages, which reduces setup cost and increases production readiness.

Depreciation also benefits buyers significantly. High-end grinding machines lose value over time but retain their core performance capabilities. This makes the EGV-3N a strong investment for companies looking to expand capacity or improve grinding quality without major capital expenditure.

HOW MUCH DOES A USED DMG MORI EGV-3N COST?

The cost of a used DMG MORI EGV-3N depends on manufacturing year, condition, cutting hours, spindle wear, and included automation or tooling. As a compact vertical external grinding machine, it generally falls into the lower-to-mid range of the used CNC grinding market, making it more affordable compared to larger multi-process grinding centers.

For machines manufactured before 2000, prices typically range from $20,000 to $50,000. These units often have higher cutting hours and may require refurbishment such as spindle rebuilding, replacement of bearings, or CNC control upgrades. However, they can still be suitable for basic or lower-volume production if properly maintained.

Machines from the 2000–2010 period generally range between $45,000 and $95,000. These models often feature improved CNC systems and better spindle stability. At this stage, cutting time becomes a key pricing factor—machines with lower hours or recent maintenance tend to command higher prices due to better accuracy and reliability.

For newer machines manufactured between 2010 and 2025, prices typically range from $90,000 to $170,000 or more, especially if they include automation systems such as loaders, in-process measurement, or upgraded control options. These machines are well-suited for high-volume precision production environments requiring consistent quality and uptime.

Cutting time remains one of the most critical pricing factors. Lower-hour machines command higher value due to better spindle health and reduced maintenance risk, while high-hour machines may require additional investment in servicing or recalibration. Buyers should also consider installation, tooling, and automation costs when evaluating total ownership. Overall, the EGV-3N offers strong value in the used market, delivering reliable external grinding performance at a relatively accessible price point.