External Grinding Machine with Internal Hole Grinding Device

• Customization: Available
• After-sales Service: 1 Year
• Warranty: 1 Year
• Model NO.: FX27P-60
• Type: External Grinding Machine
• Processing Object: Splined Shaft
• Abrasives: Grinding Wheel
• Controlling Mode: Artificial
• Automatic Grade: Manual
• Cylindrical Grinder Type: End Cylindrical Grinder
• Precision: High Precision
• Certification: CE
• Condition: New
• Lathe Face Diameter: 270mm
• The Distance Between The Two Hearts: 600mm
• Standard Grinding Wheel Size: 405*38(32-50)*127
• Special Wheel Size: 510*38(32-50)*127
• Transport Package: Wooder Boox
• Trademark: Hotman
• Origin: China
• Production Capacity: 50

Product Description

1.Technical specification:

Mechanical model			FX27-60
Processing capacity	Lathe face diameter	mm	270
	The distance between the two hearts	mm	600
	Maximum weight of core workpiece	Top work(kg)	60
		Working head only(kg)	20
	Maximum linear velocity	m/s	35(65) High speed grinding wheel is accessible 65
Grinding wheel head and feed	Angle of rotation	Left and right	±15°
	Standard grinding wheel size	Outside diameter x width x inside diameter(mm)	405*38(32-50)*127
	Special wheel size	Outside diameter x width x inside diameter(mm)	510*38(32-50)*127
	Speed of sand wheel shaft	R.P.M.	1650/1850/2100 (also variable speed without pole)
	Travel distance	mm	250
	Fast feed stroke	Fast forward and fast back to a safe distance	40
	Spindle stroke	Feed per revolution(mm)	20
		Minimum X-axis setting unit(mm)	0.005
work head	Spindle rotation mode		Simultaneous/centering
	Angle of rotation	Working head edge (degree)	30°
		Grinding wheel head (degree)	90°
	Spindle speed	R.P.M.	10-500 Belt pulley adjust
	Taper of the thimble	MT	NO.4
	The spindle through aperture	mm	25
Tail seat	Automatic stretching distance	mm	32
	Taper of the thimble	MT	NO.4
worktable	Angle of rotation	Deg	+9/-6
	Hand wheel feed	Feed per revolution	12.5
	Automatic feed speed	mm	50-4000/min
Inner hole grinding device (Optional)	Spindle speed	R.P.M.	20,000(35,000-Special)
	Motor	KW(HP)	0.75
Motor	Sand wheel shaft	KW(HP)	3.75
	Working head spindle	KW(HP)	0.75
	Hydraulic power circulating oil pump	KW(HP)	0.75
	Lapping pump	KW(HP)	0.37
Tank capacity	Sand wheel shaft oil box (static and dynamic pressure)	L	120
	Power circulation tank	L	60
	Lapping tank	L	80
Packing size	Length x width x height	mm	2900x2250x2100
	Net weight	kg	2500

2. Device description:
1) Ontology
   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) Automatic lubrication system
   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)  Grinding wheel head feed shaft
  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.    


4) Grinding wheel spindle
   The grinding wheel spindle adopts FA-G high-precision bearings, the first four and the second two sleeve structure, without separate lubrication, simple maintenance, free of metal-to-metal contact, and can obtain nearly permanent service life. The grinding wheel spindle has the characteristics of high rigidity and high precision. For special workpiece grinding, the grinding wheel speed can be adjusted to increase the linear speed.

5) Tail seat
   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.
6)  Matching device
    Equipped with inner hole grinding device for choice, inner hole spindle speed up to 20000 RPM, can achieve a good clamping to complete the grinding of outer circle and inner hole. At the same time, optional dual-axis optical ruler numerical control device, to achieve accurate 0.001mm feed.