USED DMG MORI IGV-1NT

The DMG MORI IGV-1NT is a compact, high-precision CNC vertical multi-process grinding machine designed for small precision components requiring tight tolerances, excellent surface finish, and high repeatability. Developed by Taiyo Koki under DMG MORI, it belongs to the IGV series focused on high-efficiency internal and external grinding in a space-saving vertical configuration. It is widely used in industries such as automotive, bearing production, hydraulic systems, and precision engineering, where consistent micro-level accuracy is essential.

The IGV-1NT features a swing diameter of 180 mm and a maximum grinding diameter of 100 mm, with a maximum workpiece height of 100 mm and grinding length of 100 mm. It is designed for lightweight precision parts, typically supporting small workpieces with high-speed production requirements. The work spindle operates at speeds up to 2,000 rpm, while the internal grinding spindle can reach extremely high speeds of up to 75,000 rpm, enabling ultra-fine surface finishes and efficient material removal on small diameters.

A key advantage of the IGV-1NT is its vertical structure, which improves stability and simplifies workpiece setup. Gravity-assisted positioning ensures consistent clamping with reduced deformation, which directly contributes to high roundness accuracy—often achieving sub-micron levels in optimized conditions.

The machine is equipped with a turret-type wheelhead that enables multi-process grinding, allowing internal, external, and face grinding in a single setup. This reduces handling time and improves production efficiency. It also supports automation options such as loaders, robotic systems, and stockers, making it suitable for mass production environments. Additional features include optional in-process measurement systems, scale feedback control, and automatic dressing systems for maintaining grinding accuracy over long production runs.

Overall, the IGV-1NT is a compact yet highly capable grinding solution, designed for ultra-precision small-part manufacturing with high-speed spindle technology and strong automation potential.

DMG MORI IGV-1NT SPECIFICATIONS

WHY BUY USED DMG MORI IGV-1NT

Buying a used DMG MORI IGV-1NT is a practical choice for manufacturers looking to enter or expand into high-precision internal grinding without the high cost of a new machine. One of the main advantages is affordability. New ultra-high-speed grinding machines from DMG MORI can be expensive due to advanced spindle technology and precision engineering, while used units offer similar performance at a significantly lower investment.

Another key advantage is reliability. The IGV-1NT is built with a rigid vertical structure that ensures stability and consistent accuracy during high-speed grinding. Because internal grinding involves relatively low cutting forces, mechanical wear is generally limited compared to other machining processes. This allows well-maintained used machines to continue delivering high precision for long production cycles.

Cutting time, or machine hours, is a critical factor when evaluating a used IGV-1NT. Machines with lower grinding hours typically have better spindle condition, improved axis accuracy, and longer remaining service life. However, even higher-hour machines can still be a good investment if they have undergone maintenance such as spindle rebuilding, bearing replacement, or CNC control upgrades. Maintenance history often provides more insight than the machine’s age.

Another advantage is fast availability. Used machines can often be sourced and installed quickly, avoiding long lead times associated with new equipment. Many used IGV-1NT machines also include automation systems, measurement devices, or tooling packages, reducing setup costs and accelerating production readiness.

Depreciation also benefits buyers significantly. High-end grinding machines lose value over time while retaining their core functionality. This makes the IGV-1NT an excellent option for companies seeking to improve precision manufacturing capability or expand production capacity without major capital investment.

HOW MUCH DOES A USED DMG MORI IGV-1NT COST?

The cost of a used DMG MORI IGV-1NT depends on factors such as manufacturing year, machine condition, cutting hours, spindle wear, and included automation or tooling. As a compact high-speed internal grinding machine, it generally falls into the lower-to-mid range of the used CNC grinding market.

For machines manufactured before 2000, prices typically range from $15,000 to $40,000. These machines often have higher cutting hours and may require refurbishment such as spindle rebuilding, bearing replacement, or CNC control upgrades. However, they can still be suitable for low-volume or less demanding precision applications if properly maintained.

Machines from the 2000–2010 period generally range between $35,000 and $80,000. These models often include improved control systems and better spindle performance. At this stage, cutting time becomes an important pricing factor—machines with lower hours or recent servicing tend to command higher resale values due to improved accuracy and reliability.

For newer machines manufactured between 2010 and 2025, prices typically range from $80,000 to $160,000 or more, especially if equipped with automation systems such as loaders, in-process measurement, or upgraded high-speed spindle configurations. These machines are well-suited for high-volume precision manufacturing environments requiring consistent quality and uptime.

Cutting time remains one of the most important pricing drivers. 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 IGV-1NT offers strong value in the used market, delivering ultra-high-speed internal grinding performance at a relatively accessible price point.