USED OKUMA GP/GA26W

The Okuma GP/GA26W is a compact, high-precision CNC cylindrical grinding machine designed for efficient external grinding of small to medium-sized components in high-production environments. As part of Okuma’s GPW/GAW grinder series, it is widely used in industries such as automotive, hydraulics, motorcycles, and general engineering, where consistent accuracy and surface finish are essential. The machine utilizes a wheelhead traverse structure, allowing for a compact footprint while maintaining high rigidity and efficiency.

The GP/GA26W offers a maximum grinding diameter of approximately 200 mm and a distance between centers of 400 mm or 650 mm, making it suitable for a wide range of shaft-type components. It is equipped with a large grinding wheel (around 610 mm diameter) driven by a spindle motor rated at 7.5 kW, with an optional upgrade to 15 kW for heavier-duty grinding applications.

A key feature of the machine is its hydrodynamic wheel spindle, which ensures high rotational accuracy and stability during grinding operations. Combined with the wide V-flat guideway system, the machine delivers strong rigidity and consistent precision, even during long grinding cycles.

The GP/GA26W is equipped with Okuma’s OSP-P300GA control system, which includes conversational programming (IGAP+), simplifying setup and operation. Rapid traverse speeds of approximately 30 m/min (X-axis) and 20 m/min (Z-axis) help reduce non-cutting time and improve overall productivity.

Designed for high grinding time utilization, the machine supports automation integration and efficient part handling. Overall, the GP/GA26W offers a strong combination of precision, compact design, and productivity, making it a reliable solution for mass-production grinding applications.

OKUMA GP/GA26W SPECIFICATIONS

WHY BUY USED OKUMA GP/GA26W

Buying a used Okuma GP/GA26W is a practical and cost-effective way to acquire a high-precision cylindrical grinder without the expense of a new machine. Okuma grinders are known for their durability, robust construction, and ability to maintain accuracy over long operational periods, making them highly desirable in the used equipment market. Even older units can continue to perform reliably when properly maintained.

One of the primary advantages of purchasing used is cost savings. A new CNC cylindrical grinder can require significant capital investment, particularly when equipped with advanced controls and automation systems. A used GP/GA26W provides access to the same core capabilities—high precision, stable grinding performance, and compact design—at a significantly lower cost, allowing businesses to expand capacity while preserving capital.

Grinding time (spindle hours) is one of the most important factors when evaluating a used machine. Machines with lower grinding hours typically experience less wear on critical components such as the spindle, guideways, and slides. For example, a machine from the early 2010s with moderate grinding time may offer better reliability than a newer unit that has been heavily used in continuous production. Since grinding accuracy is highly dependent on spindle condition, reviewing maintenance records and calibration history is essential.

Another advantage is process consistency. The GP/GA26W is designed for repetitive, high-precision grinding tasks, meaning even used machines can deliver stable results in production environments. Additionally, Okuma’s continued parts availability and service support reduce the risks associated with purchasing older equipment.

From a financial perspective, buying used enables faster return on investment. With lower upfront costs and the ability to maintain high grinding time utilization, a used GP/GA26W can quickly contribute to production efficiency and profitability.

HOW MUCH DOES A USED OKUMA GP/GA26W COST?

The cost of a used Okuma GP/GA26W depends on factors such as manufacturing year, condition, configuration, and most importantly, grinding time (spindle hours). As a mid-size cylindrical grinder, it typically falls within a moderate price range while offering high precision and production capability.

Machines built before 2000 (or early-generation grinders comparable to this platform) generally range from $10,000 to $30,000. These machines are the most affordable but may include older control systems and higher wear levels. Grinding time is especially important in this category—machines with high spindle hours may require reconditioning, while low-hour units can still be viable for light production applications.

Models produced between 2000 and 2010 typically range from $30,000 to $70,000. This segment often provides the best balance between price and performance, offering improved controls, better spindle technology, and enhanced stability. Units with low to moderate grinding time are particularly desirable, as they can deliver reliable accuracy with manageable maintenance costs.

Machines from 2010 to 2025 generally range from $70,000 to $150,000 or more, depending on configuration, automation integration, and control system upgrades. These newer machines benefit from advanced CNC controls, improved efficiency, and better consistency during long production runs.

Grinding time remains the most critical pricing factor. A newer machine with excessive spindle hours may be less valuable than an older unit with minimal use. Buyers should carefully evaluate spindle condition, maintenance history, and machine accuracy to determine true market value and ensure long-term operational reliability.