USED DMG MORI CVG 6

The DMG MORI CVG 6 is a high-precision CNC vertical multi-process grinding machine designed for efficient machining of medium-sized components with complex geometries. Part of the CVG series developed by Taiyo Koki under DMG MORI, it integrates multiple grinding operations—including internal (ID), external (OD), and face grinding—into a single setup. This makes it particularly suitable for industries such as aerospace, automotive, bearing manufacturing, and heavy precision engineering, where process consolidation and accuracy are critical.

The CVG 6 offers a swing diameter of 650 mm and a maximum grinding diameter of 600 mm, with a maximum workpiece height of 550 mm and grinding length up to 500 mm. These specifications position it as a mid-size vertical grinding solution capable of handling moderately heavy components, with a maximum workpiece weight of approximately 500 kg. The machine is equipped with a work spindle capable of speeds up to 350 rpm and a grinding spindle reaching up to 9,000 rpm, ensuring stable and efficient material removal.

One of its key advantages is its vertical design, which improves rigidity and reduces workpiece deflection, particularly when machining heavier components. The machine features a turret-type wheelhead with indexing positions and optional continuous B-axis control, allowing precise angular adjustments for complex grinding operations. Additionally, the optional C-axis with direct drive enables profile grinding of complex shapes such as cams and curvic couplings with high precision.

The CVG 6 also supports advanced automation features, including a 2-pallet automatic pallet changer (APC), which significantly reduces non-cutting time and increases productivity through unattended operation. Other features such as an automatic tool changer (ATC), touch probes for in-process measurement, and linear scale feedback systems further enhance accuracy and efficiency.

Overall, the CVG 6 is a versatile and productivity-focused grinding solution, combining multi-process capability, automation readiness, and high precision in a compact vertical platform.

DMG MORI CVG 6 SPECIFICATIONS

WHY BUY USED DMG MORI CVG 6

Buying a used DMG MORI CVG 6 is a highly practical choice for manufacturers seeking advanced vertical grinding capabilities without the substantial cost of a new machine. One of the biggest advantages is cost savings. New multi-process grinding machines with automation features such as pallet changers and tool changers can be extremely expensive, but used units provide similar operational capabilities at a significantly lower investment.

Another important factor is machine durability. DMG MORI machines are known for their rigid construction and long service life, and the CVG 6 is no exception. Its vertical design enhances structural stability and minimizes vibration, which helps maintain precision over time. Because grinding involves relatively low cutting forces compared to milling or turning, wear on the machine structure is reduced, allowing older units to remain productive if properly maintained.

Cutting time, or machine hours, plays a crucial role in determining the value of a used CVG 6. Machines with lower grinding hours typically have better spindle condition, higher positioning accuracy, and longer remaining service life. However, even machines with higher usage can still be valuable if they have undergone proper maintenance or refurbishment, such as spindle rebuilding, encoder replacement, or CNC control upgrades. In many cases, service history is more important than the manufacturing year.

Another advantage is faster availability. Used machines can often be delivered and installed quickly, avoiding long lead times associated with new equipment. Many used CVG 6 machines also include tooling, automation options, or measurement systems, which reduces additional investment and improves operational readiness.

Finally, depreciation benefits the buyer. High-end grinding machines lose a significant portion of their value over time while retaining their functional performance. This makes a used CVG 6 an excellent option for companies looking to expand capacity, improve efficiency, or enter multi-process grinding without a major upfront cost.

HOW MUCH DOES A USED DMG MORI CVG 6 COST?

The cost of a used DMG MORI CVG 6 varies widely depending on factors such as manufacturing year, machine condition, cutting hours, automation features, and included tooling. As a modern vertical multi-process grinding machine with automation capability, it typically falls into the higher end of the used CNC grinding market.

For machines manufactured before 2000, prices generally range from $40,000 to $100,000. These machines often have high cutting hours and may require refurbishment, such as spindle rebuilding, control upgrades, or replacement of feedback systems. However, they can still be suitable for less demanding applications or lower production volumes if properly maintained.

Machines from the 2000–2010 period typically range between $90,000 and $180,000. These units often include improved CNC controls and may feature early automation options. Cutting time becomes a key pricing factor—machines with lower hours or recent refurbishments tend to command higher prices due to better reliability and accuracy.

For newer machines manufactured between 2010 and 2025, prices can range from $200,000 to $450,000 or more, especially for units equipped with features such as automatic pallet changers, advanced measurement systems, and low cutting hours. These machines are ideal for high-precision, high-volume production environments where uptime and automation are critical.

Cutting time is one of the most important determinants of price. A low-hour machine with a strong maintenance record will command a premium, while a high-hour machine may require additional investment in repairs or calibration. Buyers should also consider costs such as installation, tooling, and potential retrofits. Overall, the CVG 6 represents a high-value investment, offering advanced grinding capability, automation potential, and long-term reliability in demanding industrial applications.