Large-size NCCG Machine NPG-400NC-2

NC control allows automatic setting of machining conditions by inputting information on the target workpiece and grinding wheel.

In addition, automatic compensation functions (convexity correction and Δh correction) allow processing conditions to be corrected simply by inputting the measured values of test-cut workpieces.
To accurately hold a wide range of workpiece sizes from Φ100 to Φ400, the chuck has a three-stage parent jaw attached, which enables grasping of three different resin jaw diameters.

Lens to be processed	Lens diameter	φ100～400mm（樹脂ヤトイを含めφ450）
Lens to be processed	Lens curvature	±50～∞
Grindstone shaft	Diameter of Grinding stone	φ60～300mm
	Grindstone length	Standard length 125mm（Min. 105～Max. 135mm）
	Tilted angle	-2°～+50°
	No. of rotation	1,000～8,000rpm（3-stage switching setting of processing speed）
	Horizontal movment amount	-200~+200mm（傾斜軸旋回中心を0とする）
	Vertical movement amount	-20～+30ｍｍ（砥石125ｍｍの先端が旋回中心と合致位置を0とする）
	Shaft end shape	φ31.267mm　MT#4テーパー（先端M28×1.5ネジ付き）
	傾斜軸固定	servo-brake, Cylinder clamp
	左右、上下軸固定	servo-brake
Work shaft	切込速度	0.05～10ｍｍ/min (3-stage switching setting of processing speed）
	No. of rotation	2～11rpm (3-stage switching setting of processing speed）
	Spark out	0～999 sec.
	Vertical movement amount	Max. 225mm
	Shaft end shape	φ200mm flat type（ダイヤフラムチャック8吋　取付用）
	Chuck shape	Diaphragm chuck（ダイナミックツール製）8吋
	Clamp method	樹脂製割ヤトイにレンズをセットしクランプクランプ用チャック爪はφ120・180・250mm (Clamp Diameter)
Grinding liquid	Supply position	砥石軸中心および外周、洗浄用ホースの3ヶ所
	Tank	Installed on the left side of the device（装置左側に給・排水口を設置）
	Centrifuge	TOUTO SEPARATOR：TSK-81＋架台 (Separate power supply from main unit)
Control panel	Touch Pannel	10.4 inch.　Auto-mode, Manual mode, Set-up mode, etc
	Fine adjustment	Manual pulse generator adjustment
	Data management	Selection conditions can be input/output via USB（CSV format、Editable on PC）
	ランニング機能	全軸の全ストローク動作機能
Lighting	LED light	Installed with waterproofing measures
Power	Power Source	AC200V 75A 1回路 (Main device)・AC200V 20A 1回路 (Centrifuge)
Power	Air pressure source	0.5MPa　φ10 One-touch coupling
Dimentions		Approx.W1,340×H2,190×D1,530mm（not including protruding object/separator/tank）
Weight		Approx. 3,500㎏

CG Machine

NAGATA SEISAKUSHO CO., LTD.

Capable of spherical surface machining of large diameter lenses up to φ400 with high accuracy