Specialized Palmary Gu20 X 40nc Cylindrical Grinder Grinding Machine for Cemented Carbide Machining

Product Description

Product Parameters

Moudel Name	GU20x40NC
Item	Specification
Capacity	Swivel over table	Ø210 mm
	Distance between centers	400 mm
	Max. external grinding diameter	Ø200 mm
	Max. load of centers	60 kgs
Grinding wheel	O.D. x width x I.D.	Ø355 x 38 x Ø127 mm
	Linear velocity	45 M/s
Grinding wheel - X axis	Manual distance	135 mm
	Auto. rapid advance	25 m/min
	Max. stroke	185 mm
	Min. setting unit	0.001 mm
	One turn of handwheel (graduation)	2 (0.005) mm
Table - Z axis	Traverse speed	1.5 m/min
	Max. stroke	480 mm
	Auto. reciprocate min. stroke	8 mm
	Feed of one turn of handwheel (2-step)	20 mm (2 mm)
	Swivel angle	-3° , +12°
Work spindle head	Swivel angle	-30° ~ +90°
	Center taper	M.T. No. 3
	Spindle speed (variable)	10~300 r.p.m.
	Max. load of spindle (tool holder included)	15 kgs (max. length: 100 mm)
Tailstock	Center taper	M.T. No. 3
	Stroke	20 mm
	Fine adjustment range	±0.03 mm
Motor	Wheel spindle	2.2 kW (4P)
	Work spindle (AC Servo Motor)	0.37 kW (4P) Frequency
	Hydraulic pump	0.37 kW (4P)
	Wheel spindle lubrication pump	0.18 kW (4P)
	Coolant pump	0.18 kW (2P)
	Internal grinding spindle (opt.)	0.18 kW (2P)
Power	Total voltage	7 KVA
Tank	Wheel spindle lubricant tank	7 L
	Hydraulic tank	46 L
	Coolant tank	110 L
Machine weight	New weight	2000 kgs

Product Description
PALMARY high precision cylindrical grinders are unmatched in structural rigidity and stability, grinding accuracy and operational convenience. Each machine provides maximum operational flexibility thereby allowing for various grinding operations. You will get extra value when putting a PALMARY cylindrical grinder on your production line.
Stable and rigid spindle head
·The spindle runs on precision bearings, assuring maximum spindle stability. It guarantees outstanding grinding accuracy for external dia., internal dia. (optional) & end face.
·Rotation angle +90° ~ -30°.
·20 series spindle head adopts variable speed.
·32 & 42 series spindle head is servo motor driven with variable speed.
Special hydrostatic bearing
The wheel spindle runs by using a special hydrostatic bearing and is especially ideal for precision grinding work. It features high speed, no friction between metals, no heat generation, deformation-free, extra high accuracy and continual use.
Precision wheel head
The grinding wheel spindle is made of SNCM-220 high grade alloy steel, which is normalised, tempered, carburized and sub-zero treated. The surface hardness reaches HRC62° and above. The surface hardness reaches above HRC62°, which guarantees no deformation, wear-resistant and high precision.
Various grinding application
·GU20x40NC Cylindrical Grinding Machine is capable of processing higher hardness materials, such as hardened steel, cemented carbide, etc.; it can also process brittle materials, such as glass and granite. The grinding machine can make high precision surface roughness very small grinding, also can carry out high efficiency grinding, such as powerful grinding.
·One grinder allows straight plunge grinding, shoulder grinding, traverse grinding, end face grinding, taper grinding & internal grinding (optional) functions for different machining purpose.
Advanced Hydrostatic Lubrication SystemTailstock lubrication system
The sliding surfaces of the table and wheel base are lubricated by an advanced hydrostatic automatic lubrication system, which has the advantages of smooth sliding, precise tool feeding, and everlasting accuracy.

Company Profile

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