US Blaster USB 7132 Instructions d'exploitation télécharger pdf (Page 4)

4 I Operating Instructions

PRO·FINISH(")

BASKET

BLASTERS

1.4

CQMPRESSED AIR SUPPLY

The

volume of com pressed air required

for

efficient operation

of

your

Basket Blaster depends

on

the size of nozzles

being

used

and

the

desired operating pressure. 5/16" diameter

nozzles

with

5{32"

air jets

are

the

standard unless otherwise specified. The

chart

below

shows

minimum air requirements

in

SCFM

for

various

nozzles and pressures.

AIR

REQUIREMENTS

40PSI

60

PSI

80

PSI100

PSI

884-1A

1/4" noz

36

51

63

78

wlthree guns

w/1/8" jet

(24)

(34)

{42)

(52)

(bold

print)

882-1

A

5116"

noz.

57

81

102

126

wttwo

guns

w/5132" jet

(38)

(54)

(68)

(84)

(regular

print)

7/16" noz

114

156 198

240

w/7132" jet

(74)

(104)

(132) (160)

If

the

air line

from

your compressor to

your

Basket Blaster

is

too

small, excessive pressure

drop

through

the

line

may

result

in

inefficient blasting even

though

the

compressor

is

adequately

sized.

Use

the

graph

below to determine

the

proper air line size.

Example -

Size

piping run for the

following:

BB4-1A

using 102

SCFM

located

100

feet

distance

from

the

nearest compressed

air

source.

From

chart below- piping

run

to BB4-1A

should

be

1-1/4"

pipe

LEHGTH

OF

2.~

50 75

ICO

125

!50

175

2m

225 Z50 :!75 300

AIR

Ll

NE

CFTl

1~

d'z

2

PIPE

S1Z£-

3

ZV

4

~-...:._--I-\-__;::.--+-........:::.--t---

··.•·.·.·.·.·.·.·

..

··.·

..

·.·.·

..

·

..

·.·.··;;·

......

···:;.·

··:·;;:;:,:;.

·············-·,·,·,,·,·

.·.•··

..

·.·.···,··:-:·:·'·'•''

...............

.

r.~:t>

..

·r::,,

!!i:;::!!!'JK1g:9aT,J\tJt1·::::

·:

,}·

·.

'>

· . For

pro~r

operation

your

Pro-Finish System·

·:.

reqillres

dryi·clean

atr~·;

/

..

·

:·.·

·

..

·,

. ' .

. .

·=·.

::

.;:

. :

::;::

;

:;

::::

.>:\~::{i{{:::~:~:~!~:r::~:

::::~:;:;:~f:~:r::t~.t~:~·?~:}i:;:~:;::.

::::::::

:::::::·:

:.

~

::::::

·

~::::

:::.

:::t~(:{:·

;::-=-:-.-~-

~:r:-:

.....

:-.::::

......

· . .

::::::

:;:.:

·

·::

.:

:::::::

Moistureoroilinyourcompressedairsupplycancontarninate

abrasive

and

prevent it

from

flowing

freely, resulting

in

ineffi-

cient blasting.

Your

unit

is

equipped

with

a moisture

trap

which

will

help

to remove

water

which

may

condense

in

the

connection

air

piping

during

shutdown.

However,

this

trap

is

not

designed

to

clean

heavily contaminated air

(a

more efficient

moisture

trap

is

available

as

an

option

~

contact your Empire distributor

for

details).

2.0

OPERATION

2.1

SELECTION OF MEDIA

Next

to choosing

the

proper equipment, selection of

the

proper

media

is

the

most

important factor in determining

how

efficient

your blasting operation will

be.

The kind of

media

selected

depends

on the kind of job to be done. Cleaning, deburring,

smoothing

sharp

edges, paint removal, preparation

for

coatings

-

each

job

has

specific requirements best satisfied

by

specific

media.

The size

of

media

is

very important

also.

Fine

media

results in more impacts per second over a given area

than

large

media.

Large media

gives

less number

of

impacts,

but each

impact

has

more

force.

For easy blasting jobs

such

as

the

removal

of light rust

from

steel,

fme

media

will

give

faster cleaning

than

l.argemedia.

Fordifficultjobssuchasremovalofmillscale,large

media

gives

better results. Sometimes large and

fine

medias

are

combined

for

optimum

results.

Your

Pro-Finish

Basket

Blaster is designed to operate

with

a

wide

range of

media.

The

chart

below

lists which

kinds

of

media

are

recommended.

The

standard Basket Blaster

system

with

reclaimer

can

use

the

following

media sizes:

60Hz

50

Hz

Operation

Operation

Glass Beads

any size

any

size

Walnut Shells

larger than

larger

than

Plastic

200

MESH

200

MESH

Aluminum Oxide

Garnet

40-200

MESH

60-200

MESH

Silicon Carbide

Steel Grit

G-125 to G-200

Consult

Steel Shot

S-70

Factory

For medias larger

than

those shown please consult

the

factory.

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