Large Cylinder and Inner Hole Multifunctional Universal Grinder

• Type: External Grinding Machine
• Processing Object: Big Shaft
• Abrasives: Grinding Wheel
• Controlling Mode: Artificial
• Automatic Grade: Manual
• Cylindrical Grinder Type: Universal Cylindrical Grinder
• Model NO.: MW1450B X 4000
• Precision: Precision
• Certification: CE, ISO 9001
• Condition: New
• Grinding Od Scope: 25-500mm
• Max. Grinding Length of Work Piece: 3000mm
• Max. Weight of Work Piece: 2000kg
• Size of Grinding Wheel: φ500X75Xφ305mm
• Size of Machine Bench: 12000X2620X1600mm
• Roundness: 0.005mm
• Cylindricity: 0.008mm
• Roughness: Ra≤0.32um
• Grinding ID Scope: 30-200mm
• Transport Package: Waterproof Film Covered
• Specification: 12000x2620x1600mm
• Trademark: CHANGYI
• Origin: Wuxi, China
• HS Code: 8460291100
• Production Capacity: 10 Sets Per Year

Product Description

MW1450B Large cylindrical grinding machine



Main applications and structural features
Model MW1450B universal cylindrical grinder is an improved version, renovated in design and structure from the basic model MW1450A, operated under the control of electric and hydraulic systems or by manual intervention. It is suitable for grinding external and internal cylindrical or conical surfaces of rotational parts in single-kind, and small batch production.
The table longitudinal traverse is actuated hydraulically at infinitely variable speed or operated by hands. The rapid approach and with-drawl, the intermittent micro infeed of the wheel head are also effected by hydraulic means. In addition, the latter can by manually operated in corarse or fine infeed mode. All the above power functions are accomplished by push-buttons, electrical and hydraulic control.
The structure of work head spindle employs a rolling and a sliding bearing with their clearance adjustable. It is suitable for various grinding between centers or on chucks. The work head can be swivelled counterclockwise with in 90°. And by swiveling either the work head or work table or wheel head, the external and internal surfaces of work piece with different taper can be ground.
The work table and wheel head guide ways are hydrostatically lubricated. The grinding wheel spindle runs in a pair of partial journal bearings, each of which consists of three tilting segmental shoes.
The internal grinding attachment bracket on the wheel head can be turned down for grinding internal parts and multi-sets of extension bars are attached for option.
Work piece, external and internal grinding wheels, hydraulic pump and coolant pump are all driven separately by their individual motors.
Each motion part of the grinder is controlled by electric and hydraulic interlocking mechanism. The external and internal wheel covers are strong and reliable, thus the grinder can be operated with ease and safety.

Specifications and technical parameters
Grinding O.D. scope	Φ25-500mm
Grinding I.D. scope	Φ30-200mm
Center height	270mm
Max. Work piece weight	2000kg
Max. Grinding length (O.D. / I.D.)	1000mm
Grinding wheel size(O.D. X W X I.D. )	Φ500 x 75 x φ305 mm
Grinding wheel speed	1330.665 rpm
Internal grinding wheel speed	10000 rpm
Max. Worktable traverse	1500/1500/2000/3000/4200 mm
Max. Worktable travel speed	0.1-3 m/min
Grinding wheel linear speed	35m/sec.
Grinding wheel head rapid approach and withdrawal traverse	100mm
Automatic intermittent infeed (fine/coarse)	0.02/0.0025mm
Manual microfeed(fine/coarse)	0.02/0.0025mm
Hydraulic pump displacement	25ml/r
Hydraulic pump pressure	2.5Mpa
Coolant flow	50 L/min
Total motor power	15.8kw
O.D. Grinding wheel head motor power	5kw-7.5kw
I.D. Grinding wheel head motor power	1.5kw
Overall dimensions( L X W X H)	4920/6020/8620/10240/12000 x 2620 x1600
Main accessories
Complete set of electric equipment
Complete set of coolant equipment
Open-type steady-rest
Cylindrical wheel dresser
Grinding wheel connect flange
Grinding wheel balancing mandrel
Leveling wedge for (1000/1500/2000/3000mm)	12/12/12/18/22 set
Internal grinding attachment	1 set
Special customized accessories
Grinding wheel balancing stand	1set
Magnetic separator	1 set
Carbide tipped center	1 pc.
Close-type steady rest	1 set
Radius dresser	1 set
End-face dresser	1 set
Internal grinding attachment	1 set
Working accuracy (standard test work piece)
Roundness	0.003mm
Uniformity of diameter in longitudinal section	0.008mm
Surface roughness(external / internal )	Ra 0.32 / 0.63 um