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is DCG technology in the NH4000 DCG?","Question",{"text":61,"@type":62},"DCG (Driven at the Center of Gravity) controls vibration by driving structural parts at the center of gravity, reducing positioning and rotational vibration to protect machined surface quality.","Answer",{"name":64,"@type":59,"acceptedAnswer":65},"What are the key advantages of Box-in-Box construction?",{"text":66,"@type":62},"Box-in-Box construction guides and drives moving parts at their center of gravity, improving balance and allowing higher speed and acceleration with enhanced servo traceability.",{"name":68,"@type":59,"acceptedAnswer":69},"How does the NH4000 DCG support space-saving while maintaining a large work envelope?",{"text":70,"@type":62},"It offers both space-saving design and a large work envelope, reducing the required floor space by 11.1% compared to existing 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the ideal machining center.  \nThe NH4000 DCG is a high-precision horizontal machining center equipped with a 400 mm (15 .7 in.) square pallet. It employs the DCG (Driven at the Center of Gravity) technology for vibration control and the Box-in-Box construction for excellent balance, and can achieve backlash-free rotary drive by using the optional direct drive motor. It is a high-performance machine incorporating all the features demanded of a horizontal machining center, including high speed, high precision, chip disposal and ease of maintenance, while achieving both a space saving design and a large work envelope.  \n2 NH4000 DCG  \nNH4000 DCG 3  \nPrincipal mechanisms  \nBasic structure  \nBox-in-Box Construction  \nMoving parts are guided and driven with perfect balance at their center of gravity by the “Box-in-Box”Construction, which supports the saddle at both ends. At the same time, we have improved the servo motor’s traceability, allowing higher speed and greater acceleration than ever before.  \n■ Rapid traverse rate \u003CX50, Y amd Zmianxes>(1,968 .5 ipm)  \n■ Cutting feedrate \u003CX50, Y amd Zmianxes>(1,968 .5 ipm)  \nHigh-acceleration specifications OP  \nX-axis 1.1 G {10.8 m/s2 (35.4 ft/s2)} Y-axis 1.2 G {11.7 m/s2 (38.4 ft/s2)} Z-axis 1.1 G {10.4 m/s2 (34.1 ft/s2)}  \nDriven at the Center of Gravity  \nVibration Controlled  \nOriginal technology  \nOur DCG (Driven at the Center of Gravity) technology controls vibration, which is one of the main enemies of high speed and high precision, by driving structural parts at their center of gravity.  \nFor positioning, machines with DCG virtually eliminate vibration, while machines without DCG continue to vibrate for a long time. DCG controls the rotational vibration which appears at every acceleration start point, and which is proportional to the distance between the drive point and the center of gravity. This prevents deterioration of the quality of the machined surface.  \nResidual vibration comparison  \n10  \n8 6  \n4 2  \n0  \n-2  \n-4  \n-6  \n-8  \n-10  \nRapid traverse rate 100%(stopped in the Z-axis direction)  \n0.4 0.45 0.5 0.55 0.6 ─Machining by DCG advanced technology Time (sec.)─Machining by a conventional machine  \nVibration amplitude (μm)  \nMachining by DCG advanced technology  \nMachining by a conventional machine  \n■ Features of DCG  \n・Improved surface quality  \n・Improved roundness  \n・Outstanding acceleration  \n・Longer tool life  \n4 NH4000 DCG  \n\n| \u003Cbr>Space-saving design\u003Cbr>Offering both space-saving design and a large work |  |  |\n| --- | --- | --- |\n| \u003Cbr>envelope, reducing the required floor space by 11. 1% compared to existing machines.\u003Cbr>■ Machine height\u003Cbr>2,711 mm (106.7 in.)\u003Cbr>\u003Cbr>\u003Cbr>\u003Cbr>■ Machine width×Machine depth \u003Cbr>\u003Cbr>|  |  |\n| 2,397×4,004 mm (94.4× 157.6 in.) |  |  |\n| \u003Cbr>Travel \u003CX, Y and Z axes>\u003Cbr>630 mm (24.8 in.)\u003Cbr>\u003Cbr>\u003Cbr> 560 mm (22.0 in.)\u003Cbr>\u003Cbr>Y-axis\u003Cbr>\u003Cbr>560 mm\u003Cbr>\u003Cbr>(22.0 in.) | \u003Cbr>Working area |  |\n|  | \u003Cbr>■ Max. workpiece height | ■ Max. workpieceswing diameter\u003Cbr>630 mm (24.8 in.)\u003Cbr>560 mm (22.0 in.) OP \u003C3-station turn-type APC>\u003Cbr>|\n|  | 900 mm (35.4 in.) 800 mm (31.4 in.) OP \u003C3-station turn-type APC>\u003Cbr>\u003Cbr>■ Pallet loading capacity\u003Cbr>2-station turn-type APC: 400 kg (880 lb.) 3-station turn-type APC: 300 kg (660 lb.) OP\u003Cbr>|  |\n\nPrincipal mechanisms  \n\n| \u003Cbr>Spindle |  |  |  |  |  |  |\n| --- | --- | --- | --- | --- | --- | --- |\n| \u003Cbr>For the spindle drive, we use the high-efficiency DDS (Direct Drive Spindle) motor which extracts full power over a wide range, from high-speed machining to heavy-duty cutting. This machine handles all types of materials from steel to aluminum and other non-ferrous metals. |  |  | ■ Max. spindle speed NH4000 DCG\u003Cbr>14,000 min-1 |  | 14,000 min-1 \u003Chigh output> OP\u003Cbr>\u003Cbr>20,000 min-1\u003Cbr>\u003Chigh speed> OP\u003Cbr>|  |\n|  |  |  | ■ Tool clamp power\u003Cbr>\u003Cbr>Improved tool clamping force |  |  |  |\n|  |  |  | Usi","cbCaiicFka87quhX","https://ap.wps.com/l/cbCaiicFka87quhX","pdf",8151393,"English","# Principal mechanisms\n## Basic structure\n## Driven at the Center of Gravity\n## Features of DCG\n## Space-saving design\n## Spindle and DDS motor\n## Tool rigidity and spindle cooling\n## Tool, Boring","[{\"question\":\"What is DCG technology in the NH4000 DCG?\",\"answer\":\"DCG (Driven at the Center of Gravity) controls vibration by driving structural parts at the center of gravity, reducing positioning and rotational vibration to protect machined surface quality.\"},{\"question\":\"What are the key advantages of Box-in-Box construction?\",\"answer\":\"Box-in-Box construction guides and drives moving parts at their center of gravity, improving balance and allowing higher speed and acceleration with enhanced servo traceability.\"},{\"question\":\"How does the NH4000 DCG support space-saving while maintaining a large work envelope?\",\"answer\":\"It offers both space-saving design and a large work envelope, reducing the required floor space by 11.1% compared to existing machines.\"}]","NH4000 DCG - High-Precision Horizontal Machining Center - Presenting the ideal machining center | PDF"]