Hotman Stable E250 Cylindrical Grinder Machine Multipurpose 6000r/min

Product Specification

High Precision CNC Cylindrical Machine E250
 
 
Device description:
 
1. The body and components are cast by Milhanna high grade cast iron FC30, which is artificially normalized heat treatment and then treated by natural aging. Components are processed by YASDA, MITSUI SEIKI, TOSHIBA, ELB and other world-class equipment once clamping processing. Precision size can be up to micron level, to ensure high precision equipment basic components.
 
 
2. Machine guide rails and precision ball screws are continuously lubricated by automatic lubrication system to ensure longer service life and accuracy. The cooling system is separated from the body to eliminate vibration and favorable heat dissipation.
 
3.Equipped with Siemens 828D CNC automatic grinding system, and secondary development, man-machine dialogue fool operation, with many optional equipment to choose from, including inner hole grinding device, automatic end measuring device, automatic outside diameter measuring device, etc.
 
4. The grinding feed system is composed of a V and a flat track of hand-crafted precision shovel, with automatic lubrication system and C3 level precision grinding ball screw, which can achieve smooth movement, excellent repeated positioning accuracy and long track life.
 
5. The standard configuration of the grinding wheel spindle is rear four and rear two bearing structure. High precision dynamic and static pressure spindle can also be selected, which has the characteristics of high rotation precision, high dynamic stiffness, good vibration resistance, high grinding efficiency and good grinding surface quality. For special work-piece grinding, the grinding wheel speed can be adjusted, up to 3500 RPM and 60m/s.

 
6. The tail seat is designed to be both rigid and robust. A hardened alloy steel sliding cylinder encrusted in the cast iron body is designed to carry the MT4 top core. The jacking force of the sliding cylinder can be easily changed by adjustment knobs at the rear. Special accessories oil pressure tail seat with a pedal to facilitate unloading work parts.
 
7.Siemens numerical control system as the standard configuration, after secondary development, all Chinese operation interface, easy to use. Equipped with Siemens high performance servo motor, the equipment CNC system and drive system have better compatibility, at the same time with automatic sand repair and automatic compensation function, to ensure the stability and precision of feed and grinding.

1. Product overview:

   Item	Product	Model	Quantity	Price composition
   	High Precision CNC Cylindrical Grinding Machine (X-axis,Z-axis)	E250		See price list with standard attachment

2. Introduce

   1)     2)   3)   4)     5)

   Use Germany Siemens 828D CNC system,Grinding special friendly man-machine interface, no programming, processing program automatically generated. Equipped with high precision bearing grinding wheel spindle, precision grinding level ball screw. Double axis servo drive automatic feed, automatic grinding wheel dressing, can meet all kinds of segment difference, circular arc, surface forming dressing, the system automatic compensation. All sliding surface, contact surface and guide surface are made of manual grinding point shoveling process to ensure the long-term stability and high precision of the machine. Machine castings are strictly selected FC25 advanced cast iron, aging treatment, to ensure the foundation of machine tools The piece does not deform.

3. Technical parameter:

   	Number	Project	Unit		Model:	E250
   Processing capacity         Grinding wheel head	1	Maximum rotating diameter of table	mm		250
   	2	Maximum distance between two thimbles	mm(in)		500
   	3	Maximum grinding diameter	mm(in)		250
   	4	Maximum load between two parietal hearts	Kg(b)		60(顶心工作)/20 (只有工作头)
   	5	Grinding wheel size (diameter × width × aperture)	mm(in)		405×32~50×127
   	6	Grinding wheel speed	rpm		1570
   	7	Maximum linear speed of grinding wheel	m/s		35
   	8	Grinding wheel dressing	mm(in)		自动型 Automatic type
   	9	Minimum X-axis feed	mm(in)		0.001
   	10	Feed Angle	Deg		90
   	11	Feed stroke	mm		250
   	12	X axis fast moving speed	mm/min		0-10000
   Head frame	13	Spindle speed	rpm		50-500
   	14	Spindle form			Simultaneous or centering
   	15	Thimble specification			MT-4
   Stern frame	16	Automatic telescopic distance (hydraulic type)	mm		40
   	17	Thimble specification			MT-4
   	18	Working mode			Manual
   worktable	19	Z axis fast moving speed	m/min		0-20000
   	20	Minimum z-axis feed	mm		0.001
   	21	Maximum travel	mm		550
   	22	Angle of rotation	Deg		+6/-9
   Motor	23	Grinding wheel spindle motor	KW		3.75/5.5
   	24	X-axis feed motor (servo)	KW		2.2
   	25	Z-axis feed motor (servo)	KW		2.2
   	26	Head frame spindle motor	KW		0.75
   	27	Cooling pump motor	KW		0.75
   	28	Lubricating oil motor	KW		1/4*2
   	29	Tailstock oil pump motor (Special)	KW		0.75
   Other	30	X/Z axis guide/lead screw lubricating oil			MOBIL#1409 or ISO VG68
   	31	Net machine weight	Kg		约 3200
   	32	Gross machine weight	Kg		约 3400
   	33	Package size (length * width * height)	mm		2800*2000*2000