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FEATURE AND APPLICATION

 

The grinder has become a kind of successful universal cylindrical grinder after a long term running and continuously improving design. It is used for grinding external and internal cylindrical and conical of work pieces.

The machine is noted for its high rigidity and precision. Under common condition, the geometric precision is up to IT6-IT5 and stable. As a result of simple operation, high power, wide and stable function, the grinder is designed for various kinds of batch process.

Spindle systems of headstock, tailstock and wheelstock have the good structural property, large carrying capacity and the strong rigidity.

The rate of stepless speed regulation can be changed within 320r/min. It makes you very pleased to select the best surface rounghness and the highest cutting efficiency.

Worktable is steplessly driven by hydraulics, and it can be adjusted stably at the range of 0.1 – 4m/min. It features grinding of short distance and high frequency, and front and back precision is high.

The operation of hydraulic system is very convenient, neither lashing in high speed nor creeping in low speed.

The transverse feed of wheel has two sets of devices, that is automatic periodic and manual micro-feed. It guarantees to obtain accurate and dependable feed.

The machine is equipped with many kinds of attachments, such as wheels, dogs, coolant tank, and wearing parts, and complete set of usable tool.

Specifications

Standard accessories::

 

-- Grinding wheel and wheel adaptor;                                                  -- Wheel balancing arbor;

-- Wheel dresser;                                                                                        -- Cooling system and coolant tank;

-- Wheel dismounter;                                                                                -- Open type center rest;

-- Internal grinding apparatus and extension shaft;

-- Pad Iron.

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Working diameter

External

Φ8 – Φ320mm

Internal

Φ30 – Φ100mm

Max. length of work piece

External

600; 1000; 1500mm

Internal

125mm

Total power consumption

  ---

8.02kw

Cylindrical grinding wheel

Rotating speed

1670 r/min

Size (E.D. x I.D. x W)

400x203x63mm

Hydraulic system

Working pressure

0.9 – 1.1Mpa

Lubrication pressure

0.1 – 0.15Mpa

 

Wheel stock feed

Feed for hand wheel

per rev.

Rough

2mm

Fine

0.5mm

Feed for hand wheel

per graduation

Rough

0.01mm

Fine

0.0025mm

One graduation on the knob

Equal to grinding wheel

Compensating volume

Rough

0.01mm

Fine

0.0025mm

Headstock

Round angle

+90°

 

Table

Feed for hand wheel per rev.

6mm

Round angle

600: -3°-- +9°

1000: -3°-- +7°

1500: -3°-- +6°

Grinding wheel stand

Round angle

±30°

Machining accuracy

 

Roundness

 

External

φ320x600mm

0.003mm

φ320x1000mm

0.005mm

φ320x1500mm

0.005mm

Internal

0.005mm

 

Cylindricity

 

External

φ320x600mm

0.005mm

φ320x1000mm

0.008mm

φ320x1500mm

0.008mm

Internal

0.010mm

Roughness

External

Ra<0.16µm

Internal

Ra<0.63µm