YJCK-6166-Yunji Machine Tool

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Product Description

　　Key Product Features

　　1. Bed Structure

　　The machine bed features an integral floor-mounted design and is internally reinforced with a dense network of highly stable triangular stiffening ribs, ensuring excellent torsional rigidity and dimensional stability. The guideway cross-sectional width is 480 mm.

　　2. Spindle Box

　　The spindle headstock is available in four models—66B, 66C, 66H, and 66S—to meet diverse machining requirements.

　　3. Bed saddle and lower tool post

　　The bed saddle and lower tool post have been optimally designed to accommodate the machine bed’s guideway cross-section, which spans up to 480 mm. The increased length of the bed saddle enhances torsional rigidity, while additional pressure plates have been incorporated into the lower portion of the bed saddle to effectively counteract the deflection torque generated during Z-axis motion following the extension of the bed saddle. This improvement not only boosts the accuracy of the bed saddle’s Z-axis movement but also enhances the machine tool’s resistance to vibration during intermittent cutting operations.

　　4. Tailstock

　　The tailstock has been reinforced to meet the vibration resistance requirements for machining long-axis workpieces and the load-bearing capacity requirements for heavy-duty machining. In addition, the front end of the tailstock body has been extended along the sleeve’s projection, which helps reduce the sleeve’s overhang during operation and thereby enhances cutting stability.

Project	Main Parameters	Unit	66B/66C/66H/66S
Bed Working Parameters	Maximum turning diameter of the bed	mm	Φ660
	Maximum turning diameter of the skateboard	mm	①425
	Maximum travel in the X-axis (horizontal)	mm	360
	Maximum travel in the Z-axis (vertical direction)	mm	1200/1700/2200/3200
	Maximum center distance	mm	1100/1600/2100/3100
	Bed guideway width	mm	480
	Toolpost slide width	mm	240
Processing Parameters	Maximum cutting length for one clamp and one top	mm	1000/1500/2000/3000
	Maximum cutting oblique diameter of the bed and saddle / disc-type	mm	φ630
	Maximum cutting diameter on the tool post slide	mm	φ420
Bed foot	Type		Integrated floor-mounted
Spindle	Spindle head model	mm	A2-8
	Spindle bore taper		Metric No. 90 (1:20)
	Spindle bore	mm	φ82/105/130/160/205
	Spindle speed (three-speed inverter, stepless speed regulation within each gear) – Maximum independent spindle speed	revolutions per minute	45–260, 140–840, 550–1600; 66H/2000 rpm: 66S/3000 rpm
	Spindle motor power	Keyword	7.5 (optional 11)
	Chuck (manual three-jaw chuck)	mm	φ250/320/400
Servo axis	X-axis lead screw/Z-axis lead screw (model)	mm	3206/5010
	X-axis/Z-axis servo motor torque	Name	10/10
	Rapid feed rate	m/min	6/8
Work precision	Processing accuracy	level	IT6-IT7
	Repeatability	mm	X-axis ≤ 0.007; Z-axis ≤ 0.01
	Roughness	um	Ra ≤ 3.2
	Tool dimensions	kva	25×25
Tailstock	Sleeve diameter/Stroke	mm	Φ80/150
Tailstock	Sleeve hole taper	MT	No. 5
General Specifications	Volume (Length × Width × Height)	mm	2950×1750×1820
General Specifications	Net weight	kilogram	3000
Based on GB/T 25659.1-2010. The above-mentioned external dimensions and weight refer to the YJCK6166/1000; for other models, please refer to the Technical Agreement.

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Yanhe CNC Industrial Park, Hongta District, Yuxi City, Yunnan Province

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