technical NOTES

Parameters Hammer Crusher Impact Crusher Jaw Crusher Roll Sizer

Features

Output Size is

achieved by adjusting

the side and bottom

breaker plates & by

adjusting the space

between the grate

bars. Used as primary

crushing for required

output size

Output size is

achieved by

adjusting the

grinding path

and plate. Used

as primary

crushing for

required output

size

It can be used as

primary crushing

only. For 80mm,

it requires

secondary

crushing.

The type

crusher is

commonly

used in

stage

crushing

because of

low crushing

ratio.

Feed size <2,000 mm <2,000 mm <2,000 mm <2,000 mm

Output size 25-30 mm

>45 mm

(25 – 30mm

is possible in

double rotor

impactor)

>150 mm

>325 mm (In

single stage)

>45 mm

(Through

multistage

crushing)

Capacity d2,000 tph <2,500 tph <1,000 tph <2,000 tph

Reduction
ratio 60:1 -100:1 <80:1 <8:1 <6:

Moisture
content

<15-20% for

double shaft

hammer crusher <12% <5% No limitation

<10% for Single shaft

hammer crusher

Silica d8% d12% >15% >15%

Free quartz
content

3%

<10% <50% <10%

3%

Wear Rate Lower High Lower Lower

Compressive
strength of
limestone

d150 N/ mm2 <250N/mm2 150-400N/mm2 150-400N/mm

Maintenance
Downtime Moderate Moderate Low Moderate

Space required Moderate High High Low