e-mail : hyd@trf.co.in e-mail : mum@trf.co.in e-mail : nd@trf.co.

in
Fax : +91-40-23297363 Fax : +91-22-22614085 Fax : +91-11-23722447
Ph : +91-40-23297630 / 23297631 Ph : +91-22-22616853 / 22641320 Ph : +91-11-223310788 / 23314540
Paigah Plaza, Basheerbagh, Narottam Morarji Marg, Ballard Estate, 11th Floor 23, Kasturba Gandhi Marg
Flat No. 601, 6th Floor, Magnet House, 1st Floor, Himalaya House,
HYDERABAD MUMBAI NEW DELHI
= Oil lubrication uses double lip oil seal REGIONAL OFFICES
e-mail : dcjha@trf.co.in
= True linear motion helps easy screening of material Fax : +91-657-2345214
Ph : +91-657 - 3046242 e-mail: r.k.shukla@trf.co.in e-mail : biz.development@trf.co.in
Fax: +91 - 657-2345724 Ph : +91-33-44033553
= All permanent joints are Huck Bolted Cell : + 91 - 9334002278
Ph: +91-657-3046259
Assistant General Manager 22 Camac Street, Kolkata - 700 016
Cell: +91-9304813195
= Uniform motion throughout ensures accurate sized product Port &Yard Equi pment Division Assistant Divisional Manager Block - D, 3rd Floor,
Bulk Material Handling Systems Bulk Material Handling Equi pment Business Development Department
= Stroke and slope adjustment feature MARKETING OFFICES
Fax no. : +91- 657-2345732, e-mail : co@trf.co.in
Phone : +91- 657-3046500/ 598
11, Station Road Burma Mines, Jamshedpur-831007, Jharkhand
TRF Limited
TECHNICAL SPECIFICATIONS

HEAD OFFICE & WORKS

Unbalance Motors
purposes.
screens. These are also very widely used for dewatering
Likhra / Jsr. (0657) 2291356

for rugged duty condition for medium to very large size

horizontal, vertical and elliptical components. These are used
TRF Truflo Vibrators produce three-way motion with
(ii) Elliptical motions
Vibropulse Screen
fine separation with low capacity.
have fixed speed. These screens are generally used for
are primarily used for small to medium sized screens and
depending on the number of unbalance motors used. They
These vibrating units produce circular or linear vibrations,
(iii) Unbalance Motor
Truflo Screen
for changing the stroke and rotation, if required.
inclined and very versatile because of the available provisions
Ultraflo Vibrating Feeders & Screens size screens and for coarse separation. These screens are
counter weights. These are mostly used for medium to large
The traditional drive unit of screens consist of single shaft with
(i) Circular motions
Enterprise A
TRF LIMITED
Enterprise A
TRF LIMITED Other Vibrating Feeders & Screens
Ultraflo Vibrating Feeders & Screens TRF LIMITED
A Enterprise
General Performance The squirrel cage induction motor is generally directly rubber or polyurethene panels. In case of dewatering
connected with the exciter unit by the cardon shaft. The exciter application, stainless steel wedge wire panels are fitted.
TRF Vibrating Screens are synonymous with high quality and The exciter has two shafts equipped with eccentric weight.
units can also be driven by V-belts and sheaves, if desired.
efficiency in all industries where bulk materials, solids and They rotate in opposite directions by means of built-in gear
powders are processed. TRF Vibrating Screens are rugged and produce linear motion. Vibrating Unit
Advantages
and designed for a long life time. The correct selection of vibrating unit is very important for
There are five holes on the eccentric weight for making
Due to wide choice of available design of TRF Vibrating Ultraflo Screen offers all benefits of horizontal mounting. constant long life, screening efficiency, low operating cost
adjustment in static moment in assembly. The desired
Screens, it is possible to select and deliver the most efficient Because of minimum head room, utilisation of space is and highest possible output. TRF has the solution due to
stroke can be achieved by removing or adding adjusting
and advantageous Screen for each particular application. Any optimum. the availability of the design of different types of drive units
weight in these holes.
type of screening problem can be solved on the basis of the Ultraflo Screens produce more tonnage at lower cost. apart from Ultraflow unit.
vast experience gathered by TRF on account of large number Maximum clearance between decks eliminates the
of screens supplied for wide variety of materials. blockages caused by surging of feed material. The exciter
mounted on the top of the unit or under slung in case of the Salient Features
feeder causes no impediment to free material flow.
Ultraflo Vibrating Unit Range & The range & capacity of any screen Coal - 0-
Easy maintenance - The exciter unit can be removed from Capacity depend on sieve analysis, half size factor, 450 mm
TRF ultraflo vibrating units consist of one or two units the frame and maintenance can be carried out on the floor. % of fines etc. TRF has a very advance
system of screen selection which has been Sinter
connected together by cardon shaft. Ultraflo type vibrating
The complete range of models, type developed based on its vast knowledge - 0-50 mm
units produce linear vibrations. They are used for large and
base & field data. TRF screen can handle a
ultra large Screens and for heavy duty applications. These are and sizes you ever need
vast range of material. Few example is are:
also used for dewatering purposes.
The Ultraflo Screens are designed for varied duty conditions.
Styles TUF-7, TUF-9, TUF-11, TUF-12 and TUF-13 are Moisture TRF screen has capability to handle entire
designated in respect to the internal diameter of the double spectrum of material having varied
Principal of Operation (Refer. Fig. No.1) moisture content. Different technology
row spherical roller bearings fitted with the exciter shafts,
The oscillating motion of the vibratory equipment such as TUF-7 for 70 mm, TUF-9 for 90 mm, TUF-11 for 110 used depends upon moisture content.
mm, TUF-12 for 120 mm and TUF-13 for 130 mm ID bearing, Generally dry screening is used up 10%
[Screen/Feeder] is imparted by the unbalance masses
respectively. moisture. More than 10%, wet screening is
mounted on the two extended shafts rotating at the same means - without unbalance weight
means - with unbalance weight recommended.
speed in opposite direction. The exciters are placed The Screen size can vary from 915 mm to 2500 mm width
Temperat- TRF has screen with special arrangement
symmetrically about a line at right angle to the exciter base and length from 3 M to 6 M with single, double and triple
These direct force exciters generate the typical vibratory ure to handle high temperature material. The
passing through the centre of gravity of the frame. As the deck arrangements.
moment [ Fig.-1). The exciters are attached to the screen or exciter assembly is suitably designed to
resultant force due to unbalance masses passes through this
feeder frame in such a way that the line of action of the Screens are designed to suit all types of screening media handle high temperature
line, it is called drive line or line of action. The total displacement
exciter forces passes close to centre of gravity and makes- such as perforated plates, welded grates, mesh clothes,
in either direction is called “stroke”.
with the screening plane-the angle of throw. The vibration
frequency of the screen is same as the exciter frequency.
Static Moment
An important characteristics of the exciter is the so-called
static moment.
The static moment is the result of the weight of all
unbalance masses multiplied by their radii of centre of
gravity; usually it is given in cm. kg.
The static moment and with it the centrifugal force
generated by the exciter can be gradually adjusted by

N
O
TI
adding or removing the unbalance weights. The

LU
magnitude of the static moment - as a function of number

VO
RE
and configuration of unbalance weights-can be taken from
the chart “Static Moment of Directed Force Exciters”.

1
F
2
F
1
Number and configuration of unbalance weights are

a
marked by white and dark circles.

2
F F2
1

b
F
2
F
Cardon Shaft Drive Arrangement

KE

c
1
O

F
1
TR

F
S

TI
2

M
d
Two or three exciters are connected together side by side by

E
cardon shaft. The intermediate flanges bolted on the exciter

e
segment are provided with spigot fitting. This ensures
Fig No. 1 correct positioning of the cardon shaft. Ultraflo Screen
 TECHNICAL SPECIFICATIONS
e-mail : hyd@trf.co.in e-mail : mum@trf.co.in e-mail : nd@trf.co.in
Fax : +91-40-23297363 Fax : +91-22-22614085 Fax : +91-11-23722447
Ph : +91-40-23297630 / 23297631 Ph : +91-22-22616853 / 22641320 Ph : +91-11-223310788 / 23314540
Paigah Plaza, Basheerbagh, Narottam Morarji Marg, Ballard Estate, 11th Floor 23, Kasturba Gandhi Marg
Flat No. 601, 6th Floor, Magnet House, 1st Floor, Himalaya House,
HYDERABAD MUMBAI NEW DELHI
= Oil lubrication uses double lip oil seal REGIONAL OFFICES
e-mail : dcjha@trf.co.in
= True linear motion helps easy screening of material Fax : +91-657-2345214
Ph : +91-657 - 3046242 e-mail: r.k.shukla@trf.co.in e-mail : biz.development@trf.co.in
Fax: +91 - 657-2345724 Ph : +91-33-44033553
= All permanent joints are Huck Bolted Cell : + 91 - 9334002278
Ph: +91-657-3046259
Assistant General Manager 22 Camac Street, Kolkata - 700 016
Cell: +91-9304813195
= Uniform motion throughout ensures accurate sized product Port &Yard Equi pment Division Assistant Divisional Manager Block - D, 3rd Floor,
Bulk Material Handling Systems Bulk Material Handling Equi pment Business Development Department
= Stroke and slope adjustment feature MARKETING OFFICES
Fax no. : +91- 657-2345732, e-mail : co@trf.co.in
Phone : +91- 657-3046500/ 598
11, Station Road Burma Mines, Jamshedpur-831007, Jharkhand
TRF Limited
HEAD OFFICE & WORKS

Likhra / Jsr. (0657) 2291356

Unbalance Motors

purposes.
screens. These are also very widely used for dewatering
for rugged duty condition for medium to very large size
horizontal, vertical and elliptical components. These are used
TRF Truflo Vibrators produce three-way motion with

(ii) Elliptical motions

Vibropulse Screen

fine separation with low capacity.

have fixed speed. These screens are generally used for
are primarily used for small to medium sized screens and
depending on the number of unbalance motors used. They
These vibrating units produce circular or linear vibrations,

(iii) Unbalance Motor

Truflo Screen

for changing the stroke and rotation, if required.

inclined and very versatile because of the available provisions
Ultraflo Vibrating Feeders & Screens size screens and for coarse separation. These screens are
counter weights. These are mostly used for medium to large
The traditional drive unit of screens consist of single shaft with

(i) Circular motions

Enterprise A
TRF LIMITED
Enterprise A
TRF LIMITED Other Vibrating Feeders & Screens

Ultraflo Vibrating Feeders & Screens TRF LIMITED

A Enterprise

General Performance The squirrel cage induction motor is generally directly rubber or polyurethene panels. In case of dewatering
connected with the exciter unit by the cardon shaft. The exciter application, stainless steel wedge wire panels are fitted.
TRF Vibrating Screens are synonymous with high quality and The exciter has two shafts equipped with eccentric weight.
units can also be driven by V-belts and sheaves, if desired.
efficiency in all industries where bulk materials, solids and They rotate in opposite directions by means of built-in gear
powders are processed. TRF Vibrating Screens are rugged and produce linear motion. Vibrating Unit
Advantages
and designed for a long life time. The correct selection of vibrating unit is very important for
There are five holes on the eccentric weight for making
Due to wide choice of available design of TRF Vibrating Ultraflo Screen offers all benefits of horizontal mounting. constant long life, screening efficiency, low operating cost
adjustment in static moment in assembly. The desired
Screens, it is possible to select and deliver the most efficient Because of minimum head room, utilisation of space is and highest possible output. TRF has the solution due to
stroke can be achieved by removing or adding adjusting
and advantageous Screen for each particular application. Any optimum. the availability of the design of different types of drive units
weight in these holes.
type of screening problem can be solved on the basis of the Ultraflo Screens produce more tonnage at lower cost. apart from Ultraflow unit.
vast experience gathered by TRF on account of large number Maximum clearance between decks eliminates the
of screens supplied for wide variety of materials. blockages caused by surging of feed material. The exciter
mounted on the top of the unit or under slung in case of the Salient Features
feeder causes no impediment to free material flow.
Ultraflo Vibrating Unit Range & The range & capacity of any screen Coal - 0-
Easy maintenance - The exciter unit can be removed from Capacity depend on sieve analysis, half size factor, 450 mm
TRF ultraflo vibrating units consist of one or two units the frame and maintenance can be carried out on the floor. % of fines etc. TRF has a very advance
system of screen selection which has been Sinter
connected together by cardon shaft. Ultraflo type vibrating
The complete range of models, type developed based on its vast knowledge - 0-50 mm
units produce linear vibrations. They are used for large and
base & field data. TRF screen can handle a
ultra large Screens and for heavy duty applications. These are and sizes you ever need
vast range of material. Few example is are:
also used for dewatering purposes.
The Ultraflo Screens are designed for varied duty conditions.
Styles TUF-7, TUF-9, TUF-11, TUF-12 and TUF-13 are Moisture TRF screen has capability to handle entire
designated in respect to the internal diameter of the double spectrum of material having varied
Principal of Operation (Refer. Fig. No.1) moisture content. Different technology
row spherical roller bearings fitted with the exciter shafts,
The oscillating motion of the vibratory equipment such as TUF-7 for 70 mm, TUF-9 for 90 mm, TUF-11 for 110 used depends upon moisture content.
mm, TUF-12 for 120 mm and TUF-13 for 130 mm ID bearing, Generally dry screening is used up 10%
[Screen/Feeder] is imparted by the unbalance masses
respectively. moisture. More than 10%, wet screening is
mounted on the two extended shafts rotating at the same means - without unbalance weight
means - with unbalance weight recommended.
speed in opposite direction. The exciters are placed The Screen size can vary from 915 mm to 2500 mm width
Temperat- TRF has screen with special arrangement
symmetrically about a line at right angle to the exciter base and length from 3 M to 6 M with single, double and triple
These direct force exciters generate the typical vibratory ure to handle high temperature material. The
passing through the centre of gravity of the frame. As the deck arrangements.
moment [ Fig.-1). The exciters are attached to the screen or exciter assembly is suitably designed to
resultant force due to unbalance masses passes through this
feeder frame in such a way that the line of action of the Screens are designed to suit all types of screening media handle high temperature
line, it is called drive line or line of action. The total displacement
exciter forces passes close to centre of gravity and makes- such as perforated plates, welded grates, mesh clothes,
in either direction is called “stroke”.
with the screening plane-the angle of throw. The vibration
frequency of the screen is same as the exciter frequency.

Static Moment
An important characteristics of the exciter is the so-called
static moment.
The static moment is the result of the weight of all
unbalance masses multiplied by their radii of centre of
gravity; usually it is given in cm. kg.
The static moment and with it the centrifugal force
generated by the exciter can be gradually adjusted by
N
O

adding or removing the unbalance weights. The

TI
LU

magnitude of the static moment - as a function of number

VO
RE

and configuration of unbalance weights-can be taken from

the chart “Static Moment of Directed Force Exciters”.
1
F

Number and configuration of unbalance weights are

2
F
1
F

marked by white and dark circles.

F F2
a

2
1
b

Cardon Shaft Drive Arrangement

2

KE
F
c

O
1
F

R
1

ST
F

Two or three exciters are connected together side by side by

TI
M

2
d

F
E

cardon shaft. The intermediate flanges bolted on the exciter

e

segment are provided with spigot fitting. This ensures

Fig No. 1 correct positioning of the cardon shaft. Ultraflo Screen
 TECHNICAL SPECIFICATIONS
e-mail : hyd@trf.co.in e-mail : mum@trf.co.in e-mail : nd@trf.co.in
Fax : +91-40-23297363 Fax : +91-22-22614085 Fax : +91-11-23722447
Ph : +91-40-23297630 / 23297631 Ph : +91-22-22616853 / 22641320 Ph : +91-11-223310788 / 23314540
Paigah Plaza, Basheerbagh, Narottam Morarji Marg, Ballard Estate, 11th Floor 23, Kasturba Gandhi Marg
Flat No. 601, 6th Floor, Magnet House, 1st Floor, Himalaya House,
HYDERABAD MUMBAI NEW DELHI
= Oil lubrication uses double lip oil seal REGIONAL OFFICES
e-mail : dcjha@trf.co.in
= True linear motion helps easy screening of material Fax : +91-657-2345214
Ph : +91-657 - 3046242 e-mail: r.k.shukla@trf.co.in e-mail : biz.development@trf.co.in
Fax: +91 - 657-2345724 Ph : +91-33-44033553
= All permanent joints are Huck Bolted Cell : + 91 - 9334002278
Ph: +91-657-3046259
Assistant General Manager 22 Camac Street, Kolkata - 700 016
Cell: +91-9304813195
= Uniform motion throughout ensures accurate sized product Port &Yard Equi pment Division Assistant Divisional Manager Block - D, 3rd Floor,
Bulk Material Handling Systems Bulk Material Handling Equi pment Business Development Department
= Stroke and slope adjustment feature MARKETING OFFICES
Fax no. : +91- 657-2345732, e-mail : co@trf.co.in
Phone : +91- 657-3046500/ 598
11, Station Road Burma Mines, Jamshedpur-831007, Jharkhand
TRF Limited
HEAD OFFICE & WORKS

Likhra / Jsr. (0657) 2291356

Unbalance Motors

purposes.
screens. These are also very widely used for dewatering
for rugged duty condition for medium to very large size
horizontal, vertical and elliptical components. These are used
TRF Truflo Vibrators produce three-way motion with

(ii) Elliptical motions

Vibropulse Screen

fine separation with low capacity.

have fixed speed. These screens are generally used for
are primarily used for small to medium sized screens and
depending on the number of unbalance motors used. They
These vibrating units produce circular or linear vibrations,

(iii) Unbalance Motor

Truflo Screen

for changing the stroke and rotation, if required.

inclined and very versatile because of the available provisions
Ultraflo Vibrating Feeders & Screens size screens and for coarse separation. These screens are
counter weights. These are mostly used for medium to large
The traditional drive unit of screens consist of single shaft with

(i) Circular motions

Enterprise A
TRF LIMITED
Enterprise A
TRF LIMITED Other Vibrating Feeders & Screens

Ultraflo Vibrating Feeders & Screens TRF LIMITED

A Enterprise

General Performance The squirrel cage induction motor is generally directly rubber or polyurethene panels. In case of dewatering
connected with the exciter unit by the cardon shaft. The exciter application, stainless steel wedge wire panels are fitted.
TRF Vibrating Screens are synonymous with high quality and The exciter has two shafts equipped with eccentric weight.
units can also be driven by V-belts and sheaves, if desired.
efficiency in all industries where bulk materials, solids and They rotate in opposite directions by means of built-in gear
powders are processed. TRF Vibrating Screens are rugged and produce linear motion. Vibrating Unit
Advantages
and designed for a long life time. The correct selection of vibrating unit is very important for
There are five holes on the eccentric weight for making
Due to wide choice of available design of TRF Vibrating Ultraflo Screen offers all benefits of horizontal mounting. constant long life, screening efficiency, low operating cost
adjustment in static moment in assembly. The desired
Screens, it is possible to select and deliver the most efficient Because of minimum head room, utilisation of space is and highest possible output. TRF has the solution due to
stroke can be achieved by removing or adding adjusting
and advantageous Screen for each particular application. Any optimum. the availability of the design of different types of drive units
weight in these holes.
type of screening problem can be solved on the basis of the Ultraflo Screens produce more tonnage at lower cost. apart from Ultraflow unit.
vast experience gathered by TRF on account of large number Maximum clearance between decks eliminates the
of screens supplied for wide variety of materials. blockages caused by surging of feed material. The exciter
mounted on the top of the unit or under slung in case of the Salient Features
feeder causes no impediment to free material flow.
Ultraflo Vibrating Unit Range & The range & capacity of any screen Coal - 0-
Easy maintenance - The exciter unit can be removed from Capacity depend on sieve analysis, half size factor, 450 mm
TRF ultraflo vibrating units consist of one or two units the frame and maintenance can be carried out on the floor. % of fines etc. TRF has a very advance
system of screen selection which has been Sinter
connected together by cardon shaft. Ultraflo type vibrating
The complete range of models, type developed based on its vast knowledge - 0-50 mm
units produce linear vibrations. They are used for large and
base & field data. TRF screen can handle a
ultra large Screens and for heavy duty applications. These are and sizes you ever need
vast range of material. Few example is are:
also used for dewatering purposes.
The Ultraflo Screens are designed for varied duty conditions.
Styles TUF-7, TUF-9, TUF-11, TUF-12 and TUF-13 are Moisture TRF screen has capability to handle entire
designated in respect to the internal diameter of the double spectrum of material having varied
Principal of Operation (Refer. Fig. No.1) moisture content. Different technology
row spherical roller bearings fitted with the exciter shafts,
The oscillating motion of the vibratory equipment such as TUF-7 for 70 mm, TUF-9 for 90 mm, TUF-11 for 110 used depends upon moisture content.
mm, TUF-12 for 120 mm and TUF-13 for 130 mm ID bearing, Generally dry screening is used up 10%
[Screen/Feeder] is imparted by the unbalance masses
respectively. moisture. More than 10%, wet screening is
mounted on the two extended shafts rotating at the same means - without unbalance weight
means - with unbalance weight recommended.
speed in opposite direction. The exciters are placed The Screen size can vary from 915 mm to 2500 mm width
Temperat- TRF has screen with special arrangement
symmetrically about a line at right angle to the exciter base and length from 3 M to 6 M with single, double and triple
These direct force exciters generate the typical vibratory ure to handle high temperature material. The
passing through the centre of gravity of the frame. As the deck arrangements.
moment [ Fig.-1). The exciters are attached to the screen or exciter assembly is suitably designed to
resultant force due to unbalance masses passes through this
feeder frame in such a way that the line of action of the Screens are designed to suit all types of screening media handle high temperature
line, it is called drive line or line of action. The total displacement
exciter forces passes close to centre of gravity and makes- such as perforated plates, welded grates, mesh clothes,
in either direction is called “stroke”.
with the screening plane-the angle of throw. The vibration
frequency of the screen is same as the exciter frequency.

Static Moment
An important characteristics of the exciter is the so-called
static moment.
The static moment is the result of the weight of all
unbalance masses multiplied by their radii of centre of
gravity; usually it is given in cm. kg.
The static moment and with it the centrifugal force
generated by the exciter can be gradually adjusted by
N
O

adding or removing the unbalance weights. The

TI
LU

magnitude of the static moment - as a function of number

VO
RE

and configuration of unbalance weights-can be taken from

the chart “Static Moment of Directed Force Exciters”.
1
F

Number and configuration of unbalance weights are

2
F
1
F

marked by white and dark circles.

F F2
a

2
1
b

Cardon Shaft Drive Arrangement

2

KE
F
c

O
1
F

R
1

ST
F

Two or three exciters are connected together side by side by

TI
M

2
d

F
E

cardon shaft. The intermediate flanges bolted on the exciter

e

segment are provided with spigot fitting. This ensures

Fig No. 1 correct positioning of the cardon shaft. Ultraflo Screen
 e-mail : hyd@trf.co.in e-mail : mum@trf.co.in e-mail : nd@trf.co.in
Fax : +91-40-23297363 Fax : +91-22-22614085 Fax : +91-11-23722447
Ph : +91-40-23297630 / 23297631 Ph : +91-22-22616853 / 22641320 Ph : +91-11-223310788 / 23314540
Paigah Plaza, Basheerbagh, Narottam Morarji Marg, Ballard Estate, 11th Floor 23, Kasturba Gandhi Marg
Flat No. 601, 6th Floor, Magnet House, 1st Floor, Himalaya House,
HYDERABAD MUMBAI NEW DELHI
= Oil lubrication uses double lip oil seal REGIONAL OFFICES
e-mail : dcjha@trf.co.in
= True linear motion helps easy screening of material Fax : +91-657-2345214
Ph : +91-657 - 3046242 e-mail: r.k.shukla@trf.co.in e-mail : biz.development@trf.co.in
Fax: +91 - 657-2345724 Ph : +91-33-44033553
= All permanent joints are Huck Bolted Cell : + 91 - 9334002278
Ph: +91-657-3046259
Assistant General Manager 22 Camac Street, Kolkata - 700 016
Cell: +91-9304813195
= Uniform motion throughout ensures accurate sized product Port &Yard Equi pment Division Assistant Divisional Manager Block - D, 3rd Floor,
Bulk Material Handling Systems Bulk Material Handling Equi pment Business Development Department
= Stroke and slope adjustment feature MARKETING OFFICES
Fax no. : +91- 657-2345732, e-mail : co@trf.co.in
Phone : +91- 657-3046500/ 598
11, Station Road Burma Mines, Jamshedpur-831007, Jharkhand
TRF Limited
TECHNICAL SPECIFICATIONS

HEAD OFFICE & WORKS

Unbalance Motors
purposes.
screens. These are also very widely used for dewatering
Likhra / Jsr. (0657) 2291356

for rugged duty condition for medium to very large size

horizontal, vertical and elliptical components. These are used
TRF Truflo Vibrators produce three-way motion with
(ii) Elliptical motions
Vibropulse Screen
fine separation with low capacity.
have fixed speed. These screens are generally used for
are primarily used for small to medium sized screens and
depending on the number of unbalance motors used. They
These vibrating units produce circular or linear vibrations,
(iii) Unbalance Motor
Truflo Screen
for changing the stroke and rotation, if required.
inclined and very versatile because of the available provisions
Ultraflo Vibrating Feeders & Screens size screens and for coarse separation. These screens are
counter weights. These are mostly used for medium to large
The traditional drive unit of screens consist of single shaft with
(i) Circular motions
Enterprise A
TRF LIMITED
Enterprise A
TRF LIMITED Other Vibrating Feeders & Screens
Ultraflo Vibrating Feeders & Screens TRF LIMITED
A Enterprise
General Performance The squirrel cage induction motor is generally directly rubber or polyurethene panels. In case of dewatering
connected with the exciter unit by the cardon shaft. The exciter application, stainless steel wedge wire panels are fitted.
TRF Vibrating Screens are synonymous with high quality and The exciter has two shafts equipped with eccentric weight.
units can also be driven by V-belts and sheaves, if desired.
efficiency in all industries where bulk materials, solids and They rotate in opposite directions by means of built-in gear
powders are processed. TRF Vibrating Screens are rugged and produce linear motion. Vibrating Unit
Advantages
and designed for a long life time. The correct selection of vibrating unit is very important for
There are five holes on the eccentric weight for making
Due to wide choice of available design of TRF Vibrating Ultraflo Screen offers all benefits of horizontal mounting. constant long life, screening efficiency, low operating cost
adjustment in static moment in assembly. The desired
Screens, it is possible to select and deliver the most efficient Because of minimum head room, utilisation of space is and highest possible output. TRF has the solution due to
stroke can be achieved by removing or adding adjusting
and advantageous Screen for each particular application. Any optimum. the availability of the design of different types of drive units
weight in these holes.
type of screening problem can be solved on the basis of the Ultraflo Screens produce more tonnage at lower cost. apart from Ultraflow unit.
vast experience gathered by TRF on account of large number Maximum clearance between decks eliminates the
of screens supplied for wide variety of materials. blockages caused by surging of feed material. The exciter
mounted on the top of the unit or under slung in case of the Salient Features
feeder causes no impediment to free material flow.
Ultraflo Vibrating Unit Range & The range & capacity of any screen Coal - 0-
Easy maintenance - The exciter unit can be removed from Capacity depend on sieve analysis, half size factor, 450 mm
TRF ultraflo vibrating units consist of one or two units the frame and maintenance can be carried out on the floor. % of fines etc. TRF has a very advance
system of screen selection which has been Sinter
connected together by cardon shaft. Ultraflo type vibrating
The complete range of models, type developed based on its vast knowledge - 0-50 mm
units produce linear vibrations. They are used for large and
base & field data. TRF screen can handle a
ultra large Screens and for heavy duty applications. These are and sizes you ever need
vast range of material. Few example is are:
also used for dewatering purposes.
The Ultraflo Screens are designed for varied duty conditions.
Styles TUF-7, TUF-9, TUF-11, TUF-12 and TUF-13 are Moisture TRF screen has capability to handle entire
designated in respect to the internal diameter of the double spectrum of material having varied
Principal of Operation (Refer. Fig. No.1) moisture content. Different technology
row spherical roller bearings fitted with the exciter shafts,
The oscillating motion of the vibratory equipment such as TUF-7 for 70 mm, TUF-9 for 90 mm, TUF-11 for 110 used depends upon moisture content.
mm, TUF-12 for 120 mm and TUF-13 for 130 mm ID bearing, Generally dry screening is used up 10%
[Screen/Feeder] is imparted by the unbalance masses
respectively. moisture. More than 10%, wet screening is
mounted on the two extended shafts rotating at the same means - without unbalance weight
means - with unbalance weight recommended.
speed in opposite direction. The exciters are placed The Screen size can vary from 915 mm to 2500 mm width
Temperat- TRF has screen with special arrangement
symmetrically about a line at right angle to the exciter base and length from 3 M to 6 M with single, double and triple
These direct force exciters generate the typical vibratory ure to handle high temperature material. The
passing through the centre of gravity of the frame. As the deck arrangements.
moment [ Fig.-1). The exciters are attached to the screen or exciter assembly is suitably designed to
resultant force due to unbalance masses passes through this
feeder frame in such a way that the line of action of the Screens are designed to suit all types of screening media handle high temperature
line, it is called drive line or line of action. The total displacement
exciter forces passes close to centre of gravity and makes- such as perforated plates, welded grates, mesh clothes,
in either direction is called “stroke”.
with the screening plane-the angle of throw. The vibration
frequency of the screen is same as the exciter frequency.
Static Moment
An important characteristics of the exciter is the so-called
static moment.
The static moment is the result of the weight of all
unbalance masses multiplied by their radii of centre of
gravity; usually it is given in cm. kg.
The static moment and with it the centrifugal force
generated by the exciter can be gradually adjusted by

N
O
TI
adding or removing the unbalance weights. The

LU
magnitude of the static moment - as a function of number

VO
RE
and configuration of unbalance weights-can be taken from
the chart “Static Moment of Directed Force Exciters”.

1
F
2
F
1
Number and configuration of unbalance weights are

a
marked by white and dark circles.

2
F F2
1

b
F
2
F
Cardon Shaft Drive Arrangement

KE

c
1
O

F
1
TR

F
S

TI
2

M
d
Two or three exciters are connected together side by side by

E
cardon shaft. The intermediate flanges bolted on the exciter

e
segment are provided with spigot fitting. This ensures
Fig No. 1 correct positioning of the cardon shaft. Ultraflo Screen