Working accuracy (standard test specimen)

Inspection item	NCG630
Roundness	0.005
Consistency of the longitudinal section diameter	0.015
Roughness: longitudinal grinding	Ra 0.32μm
Roughness: plunge-cut grinding	Ra 0.63μm
Roughness: longitudinal grinding (operational)	Ra 0.8μm

Technical parameters of NCG630 CNC Cylindrical Grinding Machine

Model		Unit	NCG630
CNC system			FANUC 0i-MF
Max. swiveling diameter		mm	Φ670 (26”)
Distance between centers		mm	1500 / 2000 / 2500 / 3000 (59”/ 79”/ 98”/ 118”)
Center height		mm	335 (13”)
Max. grinding diameter		mm	Φ630 (25”)
Max. workpiece weight between centers		kg	1000 (39”)
Grinding wheel	OD x W x ID	mm	Φ900×100×305 (35x3.9x12”)
	Linear speed	m/s	45 / 60
Wheel head	Total travel	mm	450 (18”)
	Feed speed	mm/min	0.1-5000
	Min. setting unit	mm	0.001
	Oblique angle	degree	90°
Worktable	Type		Two layer conical degree adjusting worktable
	Feed speed	mm/min	0.1-5000
	Min setting unit	mm	0.001
Work head	Center		MT-6 / Metric 80
	Rotating speed	rpm	15-150; stepless
Tailstock	Center		MT-6 / Metric 80
	Travel of center	mm	70 (2.8”)
Electrical system	Power of wheel spindle motor	kW	30 / 37
	Torque of wheel head feeding motor	Nm	30
	Torque of worktable feeding motor	Nm	30
	Power of work head spindle motor	kW	4 / 5.5
	Hydraulic pump motor	kW	0.75 (4P)
	Motor of wheel spindle bearing lubrication pump	kW	0.75 (4P)
Cubage dimension	Hydraulic and lubricating oil tank	L	45 / 75
	Spindle bearings oil tank	L	45 / 75
Net weight		kg	11000 / 12000 / 13000 / 14000
Gross weight		kg	14000 / 16000 / 18000 / 20000

Features
1. With the rational layout and integral protective cover, the machine is convenient for maintenance and in conformity with human engineering requirements.
2. The grinding wheel spindle adopts a structure of sleeve type high-rigidity hydrostatic/hydrodynamic main shafting and features high rotary precision and strong bearing capacity. The linear velocity of the grinding wheel can be up to 60m/s (specially ordered).
3. With two-axis linkage feeding, the machine tool is equipped with worktable (Z axis) and wheel head(X axis) driven by AC servo motor and ball screws. With plastic-filming guideway being used and on the adoption of the closed multi-points lubrication, it features vibration absorbing and anti-friction as well as good precision maintenance.
4. The machine can be provided with various diamond dressers according to customers' needs, thus realizing precise dressing of complex grinding wheel surfaces and automatic compensation.
5. Equipped with active measuring device, the closed-loop control of grinding process is realized.
6. Adopting FANUC 0i-MD CNC system, the machine features on the menu type interface input and the control up to four axes (X, Z, U and W axes) so as to meet the requirements of grinding and dressing cycles.
7. The machine may be optionally equipped with CNC or hydraulic driven auto-tracing steady rest dedicated for processing of long and thin shaft parts.

The NCG, UNCG range of CNC cylindrical grinding machines covers a range of component sizes up to 5 metres long, 0.8 metre in diameter and up to a maximum component weight of 3000 kg. All the machines include the latest Fanuc,Siemens control and equipment packages
There are many options and configurations available, for example external, internal or universal grinding, C axis for grinding non-circular shapes eg polygons, cams etc and the there is also the possibility of multiple grinding heads with automatic B axis rotation.
All levels of automation and other personalised options are also available
NC, CNC & Universal Cylindrical Grinders
FORTUNE PACIFIC specializes in designing and manufacturing a wide range of grinding machines and accessories that are exported to over 50 countries around the world. FORTUNE PACIFIC was established in 1999 and has maintained consistently favorable customer feedback. 

These grinding machines can be either conventional or numerical controlled (i.e., NC, 2NC, CNC) utilizing Fanuc, Siemens, and Mitsubishi controls.

Easy and user-friendly operating systems eliminate the need for highly skilled engineers, resulting in lower operating and maintenance costs.
Better lubrication system with maximum wear resistance.
Higher precision, more rigidity, and the least possible noise.
Customizable machine body along with a programmable control system.
Able to meet mass production requirements with higher efficiency and accuracy.

including
Automated Grinding
CNC Universal Cylindrical Grinder
CNC CYLINDRICAL GRINDER (PLUNGE TYPE)
CNC CYLINDRICAL GRINDER (ANGULAR TYPE)
CNC TRAVERSE WHEELHEAD CYLINDRICAL GRINDER

A grinding machine, often shortened to grinder, is any of various power tools or machine tools used for grinding, which is a type of machining using an abrasive wheel as the cutting tool. Each grain of abrasive on the wheel's surface cuts a small chip from the workpiece via shear deformation.

Grinding is used to finish workpieces that must show high surface quality (e.g., low surface roughness) and high accuracy of shape and dimension. As the accuracy in dimensions in grinding is of the order of 0.000025 mm, in most applications it tends to be a finishing operation and removes comparatively little metal, about 0.25 to 0.50 mm depth. However, there are some roughing applications in which grinding removes high volumes of metal quite rapidly. Thus, grinding is a diverse field.

Overview
The grinding machine consists of a bed with a fixture to guide and hold the work piece, and a power-driven grinding wheel spinning at the required speed. The speed is determined by the wheel’s diameter and manufacturer’s rating. The grinding head can travel across a fixed work piece, or the work piece can be moved while the grind head stays in a fixed position.

Fine control of the grinding head or table position is possible using a vernier calibrated hand wheel, or using the features of numerical controls.

Grinding machines remove material from the work piece by abrasion, which can generate substantial amounts of heat. To cool the work piece so that it does not overheat and go outside its tolerance, grinding machines incorporate a coolant. The coolant also benefits the machinist as the heat generated may cause burns. In high-precision grinding machines (most cylindrical and surface grinders), the final grinding stages are usually set up so that they remove about 200 nm (less than 1/10000 in) per pass - this generates so little heat that even with no coolant, the temperature rise is negligible. Optional accessories
1. End face grinding;                              
2. Hydraulic steady rest: 78-98 or 80-115mm;
3. Grinding wheel automatic balancer;               
4. Wheel anti-collision and idle running elimination device;

Overview
The grinding machine consists of a bed with a fixture to guide and hold the work piece, and a power-driven grinding wheel spinning at the required speed. The speed is determined by the wheel’s diameter and manufacturer’s rating. The grinding head can travel across a fixed work piece, or the work piece can be moved while the grind head stays in a fixed position.

Fine control of the grinding head or table position is possible using a vernier calibrated hand wheel, or using the features of numerical controls.

Grinding machines remove material from the work piece by abrasion, which can generate substantial amounts of heat. To cool the work piece so that it does not overheat and go outside its tolerance, grinding machines incorporate a coolant. The coolant also benefits the machinist as the heat generated may cause burns. In high-precision grinding machines (most cylindrical and surface grinders), the final grinding stages are usually set up so that they remove about 200 nm (less than 1/10000 in) per pass - this generates so little heat that even with no coolant, the temperature rise is negligible.

Technical parameters of NCG630 CNC Cylindrical Grinding Machine

Model		Unit	NCG630
CNC system			FANUC 0i-MF
Max. swiveling diameter		mm	Φ670 (26”)
Distance between centers		mm	1500 / 2000 / 2500 / 3000 (59”/ 79”/ 98”/ 118”)
Center height		mm	335 (13”)
Max. grinding diameter		mm	Φ630 (25”)
Max. workpiece weight between centers		kg	1000 (39”)
Grinding wheel	OD x W x ID	mm	Φ900×100×305 (35x3.9x12”)
	Linear speed	m/s	45 / 60
Wheel head	Total travel	mm	450 (18”)
	Feed speed	mm/min	0.1-5000
	Min. setting unit	mm	0.001
	Oblique angle	degree	90°
Worktable	Type		Two layer conical degree adjusting worktable
	Feed speed	mm/min	0.1-5000
	Min setting unit	mm	0.001
Work head	Center		MT-6 / Metric 80
	Rotating speed	rpm	15-150; stepless
Tailstock	Center		MT-6 / Metric 80
	Travel of center	mm	70 (2.8”)
Electrical system	Power of wheel spindle motor	kW	30 / 37
	Torque of wheel head feeding motor	Nm	30
	Torque of worktable feeding motor	Nm	30
	Power of work head spindle motor	kW	4 / 5.5
	Hydraulic pump motor	kW	0.75 (4P)
	Motor of wheel spindle bearing lubrication pump	kW	0.75 (4P)
Cubage dimension	Hydraulic and lubricating oil tank	L	45 / 75
	Spindle bearings oil tank	L	45 / 75
Net weight		kg	11000 / 12000 / 13000 / 14000
Gross weight		kg	14000 / 16000 / 18000 / 20000

Optional accessories
1. End face grinding;                              
2. Hydraulic steady rest: 78-98 or 80-115mm;
3. Grinding wheel automatic balancer;               
4. Wheel anti-collision and idle running elimination device;