Pulley = Conveyor capacity range upto 4000 TPH. = Belt width upto 2200 mm. = Belt speed upto 3.85 ml sec. = Shaft dia @ hub upto 340 mm = Pulley dia upto 1250 mm. Pulley category : Shaft dia < 160 mm ® Normal duty 160 < shaft dia < 240 mm ® Heavy duty 240 < shaft dia ® Extra heavy duty pulley TRF LIMITED A Enterprise TECHNICAL SPECIFICATIONS NORMAL DUTY HEAVY DUTY EXTRA HEAVY DUTY
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SPECIAL RANGE SPECIAL FEATURES Pulley Side Discharge Loaders · Side Discharge Loaders ... = Conveyor capacity range upto 4000 TPH. = Belt width ... STUB PULLEY DESIGN Finite Element
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Side Discharge Loaders
Bucket Capacity (Standard) 1.0 m3 /1.5m3
Travelling Speed (max.) 2.6 kmph
Total Weight 8500 kgs/9000 kgs
Ground Pressure 0.9 kg/cm2
Tractive Force 5200 kgs
Breakout Force 3000 kgs
Electrical Components Flame proof for underground gassy mines
Negotiable gradient for driving and loading 1:4, cross gradient 1:6
System pressure (max.) 125 bar
Traction motors Radial piston fixed displacement type
Payload (max.) 2.0 MT
Drive Power (max.) 55 KW
Hydraulic medium HFB 68
TRF LIMITEDA Enterprise
TEC
HN
ICA
L S
PE
CIF
ICA
TIO
NS
Side Discharge Loaders
The M412 crawler mounted side discharge loader is a low profile
high output machine. The latest development in the fields of
hydraulics and fabrication and underground work are
considered while designing the loaders and they are developed
to offer maximum benefit to the mining industry. Flameproof
electricals make them suitable for operation in gassy mines.
TRF Limited11, Station Road Burma Mines, Jamshedpur-831007, Jharkhand
generation; Low center of gravity; Low specific base
pressure; Fail safe parking brake; Track aligning
guards; powerful flood lights; emergency stops;
deadman switch; heavy duty construction;
Protection of sprocket from ingress of dust.
The manufacturer reserves the right to change the
specifications and/or design, of this machine at any
time without notice.
TRF LIMITEDAEnterprise
Side Discharge loader with roof drilling machine
The other variants of Side Discharge Loaders available are
Extra Low Height - 1.0 cum bucket capacity.
Standard Height with CRD arrangement - 1.0 cum bucket capacity.
All the above machines are approved by DGMS, India for use in underground
coal mines.
=
=
Likh
ra / Jsr. (0
65
7) 2
29
13
56
Pulley
= Conveyor capacity range upto 4000 TPH.
= Belt width upto 2200 mm.
= Belt speed upto 3.85 ml sec.
= Shaft dia @ hub upto 340 mm
= Pulley dia upto 1250 mm.
Pulley category :
Shaft dia < 160 mm ® Normal duty
160 < shaft dia < 240 mm ® Heavy duty
240 < shaft dia ® Extra heavy duty pulley
TRF LIMITEDA Enterprise
TEC
HN
ICA
L S
PE
CIF
ICA
TIO
NS
NORMAL DUTY HEAVY DUTY EXTRA HEAVY DUTY
Stress concentration
Pulley
SPECIAL RANGE
STATIC SHAFT DESIGNSTUB PULLEY DESIGN
Finite Element Analysis
Pulleys are dimensioned according to the characteristics of each conveyor and may be designedto meet a great variety of construction methods.
For 40 years TRF has designed and manufactured pulleys, using materials of the highest qualityin a production process employing advanced technology. This together with the application ofthe Quality Assurance system certified to ISO 9001 contributes to the production of high qualityproducts offering dependable, long life performance in the field and appreciably reducing maintenance costs.
Likh
ra / Jsr. / 1
00
0 N
os.
TRF Limited11, Station Road Burma Mines, Jamshedpur-831007, Jharkhand
The images below illustrate the varied level of stress concentrations induced on three pulley configurations while they experiencedloads of equal amounts. Widespread, consistent, blue and green coloration would indicate a low risk of stress induced failure
Heavy StressConcentration
Side Discharge Loaders
Bucket Capacity (Standard)1.0 m3 /1.5m3
Travelling Speed (max.)2.6 kmph
Total Weight8500 kgs/9000 kgs
Ground Pressure0.9 kg/cm2
Tractive Force5200 kgs
Breakout Force3000 kgs
Electrical ComponentsFlame proof for underground gassy mines
Negotiable gradient for driving and loading1:4, cross gradient 1:6
System pressure (max.)125 bar
Traction motorsRadial piston fixed displacement type
Payload (max.)2.0 MT
Drive Power (max.)55 KW
Hydraulic mediumHFB 68
TRF LIMITEDAEnterprise
TEC
HN
ICA
L SP
EC
IFICA
TION
S
Side Discharge Loaders
The M412 crawler mounted side discharge loader is a low profile
high output machine. The latest development in the fields of
hydraulics and fabrication and underground work are
considered while designing the loaders and they are developed
to offer maximum benefit to the mining industry. Flameproof
electricals make them suitable for operation in gassy mines.
TRF Limited11, Station Road Burma Mines, Jamshedpur-831007, Jharkhand
generation; Low center of gravity; Low specific base
pressure; Fail safe parking brake; Track aligning
guards; powerful flood lights; emergency stops;
deadman switch; heavy duty construction;
Protection of sprocket from ingress of dust.
The manufacturer reserves the right to change the
specifications and/or design, of this machine at any
time without notice.
TRF LIMITEDA Enterprise
Side Discharge loader with roof drilling machine
The other variants of Side Discharge Loaders available are
Extra Low Height - 1.0 cum bucket capacity.
Standard Height with CRD arrangement - 1.0 cum bucket capacity.
All the above machines are approved by DGMS, India for use in underground
coal mines.
=
=
Lik
hra
/ J
sr.
(06
57
) 2
29
13
56
Pulley
=Conveyor capacity range upto 4000 TPH.
=Belt width upto 2200 mm.
=Belt speed upto 3.85 ml sec.
=Shaft dia @ hub upto 340 mm
=Pulley dia upto 1250 mm.
Pulley category :
Shaft dia < 160 mm®Normal duty
160 < shaft dia < 240 mm®Heavy duty
240 < shaft dia®Extra heavy duty pulley
TRF LIMITEDAEnterprise
TEC
HN
ICA
L SP
EC
IFICA
TION
S
NORMAL DUTYHEAVY DUTYEXTRA HEAVY DUTY
Stress concentration
Pulley
SPECIAL RANGE
STATIC SHAFT DESIGN STUB PULLEY DESIGN
Finite Element Analysis
Pulleys are dimensioned according to the characteristics of each conveyor and may be designedto meet a great variety of construction methods.
For 40 years TRF has designed and manufactured pulleys, using materials of the highest qualityin a production process employing advanced technology. This together with the application ofthe Quality Assurance system certified to ISO 9001 contributes to the production of high qualityproducts o f fer ing dependable, long l i fe per formance in the f ie ld and apprec iab ly reduc ing maintenance costs.
Lik
hra
/ J
sr.
/ 1
00
0 N
os.
TRF Limited11, Station Road Burma Mines, Jamshedpur-831007, Jharkhand
The images below illustrate the varied level of stress concentrations induced on three pulley configurations while they experiencedloads of equal amounts. Widespread, consistent, blue and green coloration would indicate a low risk of stress induced failure