CNC deep hole grinding machine equipped with a dedicated spindle for deep hole grinding.
Developed as a dedicated machine for internal grinding of large deep hole components such as hydraulic breakers for construction machinery. The vertical structure facilitates centering operations for heavy workpieces, significantly reducing setup time, and the design that works against gravity achieves high precision.
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basic information
【NVG-7LH】 Grinding possible hole diameter mm A specification: φ90～φ750 B specification: φ130～φ750 C specification: φ160～φ750 Grinding possible outer diameter mm MAX φ750 Grinding possible length mm A specification: 500 B specification: 775 C specification: 1,000 Spindle swing mm φ750 Height of workpiece on table mm 1,100 (including fixtures) Maximum load on table kg 700 (including fixtures) 【NVG-12LH】 Grinding possible hole diameter mm φ160～φ750 Grinding possible outer diameter mm MAX φ750 Grinding possible length mm 1,200 Spindle swing mm φ1,150 Height of workpiece on table mm 1,300 (including fixtures) Maximum load on table kg 2,000 (including fixtures)
Price range
P7
Delivery Time
Applications/Examples of results
Processing Example (Hydraulic Breaker for Construction Machinery) High-precision machining of long cylinder inner diameter with one chucking Inner diameter grinding with a deep hole dedicated spindle (NVG-7LH) Product Name: Hydraulic Cylinder Material: SCM440 Machined Hole Diameter: φ160 mm × Depth 600 mm Roundness: 0.002 mm Sample: Hydraulic Breaker for Construction Machinery (Rock Drill) Deep Hole Cylindricity: 0.004 mm (Measured at 10 points over 600 mm) Surface Roughness: Ra 0.4 Inner Diameter Runout: 0.004 mm
Detailed information
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NVG-7LH
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Company information
Since its establishment in 1986, Taiyo Koki has been dedicated to developing unique capabilities in the field of grinding technology, striving to meet market needs. In particular, our "vertical grinding machine," developed beyond conventional ideas, offers reliable precision and rigidity, providing our customers with improved workability and process innovation. We offer a wide range of models, from small machines suitable for mass production parts to large machines for small-batch, diverse needs, receiving high praise not only from domestic customers but also from overseas clients. Based on these development capabilities, we are advancing towards integration and larger-scale solutions to meet a variety of needs. Moving forward, our company will continue to refine its unique development capabilities, aiming to become a comprehensive specialist manufacturer of grinding machines, and will strive to meet increasingly global market demands.
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