DEBARKER PROJECTS

UPM Blandin Paper

Sun Paper

River City Fibre

UPM Blandin Paper

Sun Paper

River City Fibre

Lontar Papyrus

Crabbe Lumber

Indah Kiat

Crabbe Lumber

Indah Kiat

UPM Blandin Paper

Indah Kiat

UPM Blandin Paper

Sun Paper

UPM Blandin Paper


UPM Blandin Paper
Grand Rapids, Minnesota, USA

Softwood debarker - May 2012
Hardwood debarker - June 2012

Wood Profile

4 foot spruce / softwoods

  • Average diameter approx. 5"

4 foot aspen

  • Average diameter approx. 7"

Scope of Supply

Supply IEM Rotary debarkers to replace existing drum debarkers
IEM RS3L330 end discharge soft wood debarker
IEM RS3L330 end discharge hard wood debarker

  • 3 rotor

  • 3.5m wide by 9m long live floor open bottom debarker area

  • Shaft mount VFD controlled 100 hp drive per rotor

Performance Targets

  • 90 m3 per hour per debarker

  • <0.5% bark remaining by weight

  • <3% white wood loss on an annual average basis

Additional Comments

Existing softwood drum was 27m in length - replacement IEM Rotary debarker is 9m in length
Existing hardwood drum was 24m in length - replacement IEM Rotary debarker is 9m in length

Sun Paper


Sun Paper
Yanzhou, China

Hardwood debarker - Oct 2006

Wood Profile

Random length up to 6m long plantation aspen

  • Average diameter approx. 75mm (3")

Seasonal Conditions

Range from minus 0°C in winter to plus 35°C in summer

Scope Terms of Reference

Supply IEM Side Discharge Batch Rotary debarker for green field debarking/chipping/screening plant.
IEM SD RS2L322 side discharge debarker

  • 1 module

  • 3 rotors per module

  • 2.85m wide by 6.5m long live floor open bottom debarker area

  • VFD controlled. Gear box to high rotor sprocket and slave chains to rotors one and two.

Performance Targets

  • 80 m3 per hour or more of clean solid wood per hour out the discharge gate in worst case conditions guaranteed

  • <0.5% bark remaining by weight - tested to 0.2%

  • <3% white wood loss on an annual average basis - tested to 1.14%

Additional Comments

IEM side discharge batch rotary debarkers have the highest production per m2 of rotor area.
No need to ever over debark or under debark again
PLC controlled infeed, debarking cycle and discharge cycle
Steady continuous feed to chipper or other downstream process increases production dramatically.

River City Fibre


River City Fibre
Kamloops, British Columbia, Canada

Softwood debarker - Oct 2008

Wood Profile

Nominal 20 foot beetle killed lodge pole pine

  • Average diameter approx. 8"

Seasonal Conditions

Range from minus 20°C in winter to plus 35°C in summer

Scope Terms of Reference

Supply IEM Side Discharge Batch Rotary debarker for green field debarking/chipping/screening plant.
IEM SD RS3L322 side discharge debarker

  • 1 module

  • 3 rotors per module

  • 3.5m wide by 6.5m long live floor open bottom debarker area

  • VFD controlled individual shaft mount 100, 125 and 150 hp drives per rotor - position dependent. Shaft mount, no sprockets or chains

Performance Targets

  • 150 m3 per hour or more of clean solid wood per hour out the discharge gate in worst case conditions guaranteed - tested to 200 m3 per hour of clean solid wood per hour.

  • <0.5% bark remaining by weight

  • <1% white wood loss on an annual average basis.

Additional Comments

IEM side discharge batch rotary debarkers have the highest production per m2 of rotor area.
No need to ever over debark or under debark again
PLC controlled infeed, debarking cycle and discharge cycle
Steady continuous feed to chipper or other downstream process increases production dramatically.

SAPPI


SAPPI
Cloquet, Minnesota, USA

Hardwood debarker - May 2013

Wood Profile

8 foot aspen

  • Average diameter approx. 8"

8 foot maple/local mixed hardwoods

  • Average diameter approx. 6"

Seasonal Conditions

Range from minus 30°C in winter to plus 30°C in summer

Scope Terms of Reference

Supply IEM Rotary debarker to replace existing drum debarkers.
IEM RS4L430-90 end discharge hard wood debarker

  • 3 modules in a series

  • 4 rotors per module

Debarker:

  • 12 rotors

  • 4.9m wide by 30m long live floor open bottom debarker area

  • VFD controlled individual 75 or 100 hp drives per rotor - position dependent.

  • Total of 12 motors, gear boxes, chain drive from gear box to sprocket

Performance Targets

  • 300 - 330 m3 per hour or more of clean solid wood per hour over the discharge gate in worst case conditions.

  • 400+ m3 per hour of clean solid wood per hour over the discharge gate in unfrozen conditions.

  • <0.5% bark remaining by weight

  • <3% white wood loss on an annual average basis.

Additional Comments

Existing hardwood drum was approximately 40m in length - replacement IEM Rotary debarker is approximately 30m in length
Customer feedback indicates 450 tons (approx. 425m3) production per hour with a bark remaining of 0.3%.
World's largest single line rotary debarker

Lontar Papyrus


Lontar Papyrus Pulp and Paper Industries
Jambi, Indonesia

Hardwood debarker - January 2014

Wood Profile

2.4m to 6m (8 foot to 20) foot Acacia Cassicarpa, Acacia Mangnium and Eucalyptus

  • Average diameter normal wood 30mm to 600mm

  • Average diameter small wood 30mm to 100mm

Seasonal Conditions

Typical +28°C to +35°C

Scope of Supply

Supply IEM Rotary debarker for new chipping line.

IEM RS4L430-60 end discharge hard wood debarker

  • 2 modules in a series

  • 4 rotors per module

Debarker:

  • 8 rotors

  • 4.9m wide by 20m long live floor open bottom debarker area

  • VFD controlled individual 75, 100 and 2 x 125 hp drives per rotor - position dependent.

  • Total of 8 motors, gear boxes, chain drive from gear box to sprocket

Performance Targets

  • 300 m3 per hour or more of clean solid wood per hour over the discharge gate in worst case conditions.

  • <0.5% bark remaining by weight

  • <3% white wood loss normal logs, <5% white wood loss on small logs.

Crabbe Lumber


Crabbe Lumber
Florenceville Bristol, New Brunswick, Canada

Softwood debarker - December 2012

Wood Profile

Nominal 20 foot eastern SPF

  • Average diameter approx. 8"

Seasonal Conditions

Range from minus 20°C in winter to plus 35°C in summer

Scope of Supply

IEM Side Discharge Batch Rotary debarker for green field debarking/chipping/screening plant - by licensee.

IEM SD RS1L320 side discharge debarker

  • 1 module

  • 3 rotors per module

  • 2.5m wide by 6m long live floor open bottom debarker area

  • VFD controlled high rotor shaft mount 125 hp drives - sprockets and chains to balance of rotors.

Performance Targets

  • 60 to 100 m3 per hour or more of clean solid wood per hour out the discharge gate

  • <0.5% bark remaining by weight for pulp logs/0.3% or less bark remaining on sawlogs

Additional Comments

IEM side discharge batch rotary debarkers have the highest production per m2 of rotor area.
No need to ever over debark or under debark again
PLC controlled infeed, debarking cycle and discharge cycle
Steady continuous feed to chipper or other downstream process increases production dramatically.

Indah Kiat


Indah Kiat Pulp and Paper
Perawang, Indonesia

Hardwood debarker - January 2014

Wood Profile

2.4m to 6m (8 foot to 20) foot Acacia Cassicarpa, Acacia Mangnium and Eucalyptus

  • Average diameter normal wood 30mm to 600mm

  • Average diameter small wood 30mm to 100mm

Seasonal Conditions

Typical +28°C to +35°C

Scope of Supply

Supply IEM Rotary debarker for new chipping line.

IEM RS4L430-60 end discharge hard wood debarker

  • 2 modules in a series

  • 4 rotors per module

Debarker:

  • 8 rotors

  • 4.9m wide by 20m long live floor open bottom debarker area

  • VFD controlled individual 75, 100 and 2 x 125 hp drives per rotor - position dependent.

  • Total of 8 motors, gear boxes, chain drive from gear box to sprocket

Performance Targets

  • 300 m3 per hour or more of clean solid wood per hour over the discharge gate in worst case conditions.

  • <0.5% bark remaining by weight

  • <3% white wood loss normal logs, <5% white wood loss on small logs.

For sawmills, pulp & paper mills, lumber mills, we have experience with the following wood profiles.

Eucalyptus, Acacia Cassicarpa, Acacia Mangnium, Spruce, Eastern SPF, Plantation Aspen, And Lodge Pole Pine

"IEM Rotary Debarkers - Globally recognized state of the art multiple stem debarkers"