September 19, 2025 BY
IN Blogs , CNC Machinery

Okuma has gained its popularity in the CNC machining industry due to its high precision CNC machines that can  work with both heavyweight and lightweight materials. It is one of the most comprehensive CNC brands, whose machines are advanced in technology, reliable, long-lasting, and capable of working with various types of materials. So, some of the world’s largest manufacturing companies in different sectors are known to have their trust in Okuma CNC machines.

These large manufacturing companies often work with heavyweight materials, and Okuma has several CNC machines that can get those jobs done in a seamless manner. That’s why the Okuma CNC machines for heavyweight machining are well celebrated all around the world. If you are also looking for the best Okuma models for heavyweight machining, then this is the right place for you.

Top Okuma Machine Models For Heavyweight Machining:

Okuma has several good quality machines for heavyweight machining, but here are the top models that you should be looking for:

  1. Okuma MCR Series: If your work is concerned with gigantic workpieces that need exceptional rigidity and a huge work envelope for machining, then the MCR series can be one of the best choices for your machining shop. This machine series is popular for its capability of being able to do roughing and finishing in just a single setup. The double column design of these CNC machines provides an unmatched level of stability for heavyweight machining tasks.
    Top features of the Okuma MCR series machines (can vary from model to model):

    • They have heavy duty spindles that come with high power and torque, which helps in better machining of heavyweight demanding materials.
    • The double column design of the CNC machines provides unparalleled structural rigidity, which helps in maintaining stability during the machining of heavyweight materials.
    • They have the capacity to machine products of extremely high weights, which can often exceed the weight of 10 tons or 1000kg, capable of supporting enormous dies, molds, or structural components.
    • They have advanced thermal compensation features that integrate thermal symmetry and compensation to eliminate temperature induced distortions.

    Limitations of the Okuma MCR series CNC machines:

    • These machines are extremely huge in size, which will need substantial factory floor space, reinforced foundation, and high ceilings.
    • This is also one of the most costly CNC machines out there, and the price can be very high, especially for brand new machines.
    • Installation and setting up of the machine is very complex, and it requires specialized rigging and foundation work by expert operators.
  2. Okuma MA-H Series: This is the Okuma CNC Horizontal Machining Center series, which is well celebrated around the world for its capability of heavy duty cutting of materials like steel, aluminium, and other demanding materials. These CNC machines are used in industries where pallet based production is key. It is designed for heavy milling and continuous steel cutting.
    Top features of the Okuma MA-H series machines (can vary from model to model):

    • The Okuma MA-H series features different machines that have extremely large tool magazines, with some ranging up to 400 tools, which brings a high productivity rate on the shop floor and reduces the non-cutting time.
    • They have high speed and high torque spindles, which help them to work with different kinds of materials. The spindle power can reach as high as 60 HP.
    • The machines are made with keeping automation compatibility in mind, which helps with lights out manufacturing. The machines support different robotic and multi pallet systems, which streamlines the workflow.
    • The machines have a sludgeless tank design, which helps in reducing maintenance.

    Limitations of the Okuma MA-H series CNC machines:

    • The machines are very complex to operate, so they will need highly trained or experienced operators to run these CNC machines for optimal performance.
    • These machines are not ideal for shops that work with small sized workpieces or low volume work, as then you won’t be able to get a good ROI on the cost of the machine acquisition.
    • The machines of this series have humongous footprints, which will need a lot of shop space, so if you have real estate problems, then this might not be the right machine for you.
  3. Okuma MU-V Series: The MU-V series of Okuma is well known for its multitasking capabilities while being a machine for heavyweight machining. The machines of this series are a well known choice for heavy parts of complex design, which will require simultaneous machining of 5-axis. Intricate components of major industries like aerospace and defence are made with the help of these CNC machines.
    Top features of the Okuma MU-V series machines (can vary from model to model):

    • These CNC machines bring a unique mixture of heavy removal capability with the flexibility of 5-axis machining, which makes these machines an excellent choice for single setup machining of complex, large parts.
    • The machines have a thermal friendly concept. Okuma’s proprietary thermal compensation system actively monitors and adjusts for thermal deformation during machining, which ensures tight accuracy even during long machining runs.
    • The machines feature a high torque and high power spindle, which is designed for aggressive material removal in an efficient manner. Their spindles can have a power of 40Hp.

    Limitations of the Okuma MU-V series CNC machines:

    • Workpiece clamping for extremely heavy loads still needs careful planning as rotary table capacity is finite (check max workpiece diameters/heights for each model).
    • The machines of this series have a high initial cost, which can make them a really expensive option, and these machines are also highly complex to install and operate.
  4. Okuma LB Series: This is one of the most well-celebrated lathe series of Okuma. This machine series is known for its capability of machining heavyweight materials while maintaining high precision and tight tolerances. They offer the combination of rigidity, thermal stability, and multitasking. This machine is sold globally in high numbers.
    Top features of the Okuma LB series machines (can vary from model to model):

    • The machines of this series come with slanted box bed construction. This style of construction helps to provide exceptional rigidity and vibration damping.
    • These machines have advanced AI OSP control system features. They have features like Machining Navi, collision avoidance, and a sludgeless tank.
    • This series has machines with powerful PREX motors. They help in delivering high torque for heavy duty cutting and high speed cutting.
    • These machines have multitasking capabilities, as they have features like live tooling, sub spindle options, and 12 station turrets.

    Limitations of the Okuma LB series CNC machines:

    • These machines are not well suited for complex prismatic parts and are more capable of machining circular or cylindrical objects.
    • The machines of this series require significant shop floor space, and high level operator expertise for machining these heavy weight workpieces.

Conclusion:

Okuma is a well celebrated CNC brand known for making highly powerful workhorses that are reliable and long lasting, with high end technological features. The four machine series we mentioned are extremely great in quality for heavy weight machining works and can be in your list when you look for similar machines. To check out other Okuma CNC machines, go and see our collection of used Okuma CNC machines.