/ Equipment service
Thickeners
We restore drives and rakes and upgrade thickener automation without replacing the unit.
- 015 unit types
- 02Site visits: KZ & CIS
- 0312-mo warranty
/ Equipment
Types of units we work with
Drive
Motor, gearbox, gearing, central shaft, couplings, bearings and lubrication system.
Rake mechanism
Trusses, blades, tie rods, fasteners — diagnostics of deformation, corrosion and wear.
Central unit
Column, shaft, bearings, support elements and rotating joints.
Lifting mechanism
Drive, screw or hydraulic mechanisms, end positions, sensors and interlocks (if provided by the design).
Tank and periphery
Tank wall, overflow launder, bridge, platforms, feedwell and piping.
/ Technical audit
The key parameter is torque
Thickener drive torque directly reflects the load on the rake mechanism and the condition of the slurry being thickened — torque monitoring is a key element of diagnostics.
Key thickener specifications
- Diameter
- m
- Thickening area
- m²
- Feed Flow
- m³/h
- Feed Solids
- %
- Underflow Solids
- %
- Torque
- kN·m
- Rake Speed
- rpm
- Drive Power
- kW
What we check
Drive
- motor
- gearbox
- gearing
- central shaft
- couplings
- bearings
- lubrication system
Rake mechanism
- trusses
- blades
- tie rods
- fastenings
- deformations
- corrosion
- wear
Central unit
- column
- shaft
- bearings
- support elements
- rotating joints
Lifting mechanism (if provided)
- drive
- screw/hydraulic mechanisms
- end positions
- sensors
- interlocks
Tank and periphery
- tank wall
- overflow launder
- bridge
- platforms
- feedwell
- piping
/ Audit result
After the inspection the customer receives
- 01
List of identified defects
- 02
Technical condition assessment
- 03
List of units requiring repair or replacement
- 04
Upgrade recommendations
- 05
Preliminary spare parts list
- 06
Proposed scope of work
- 07
Technical proposal
/ Repair
Partial repair and overhaul
Partial repair
When the main service life of the drive, trusses and central unit is intact and full reconstruction is not economically necessary.
- drive bearing replacement
- gearing repair
- central shaft restoration
- repair of rake mechanism trusses and blades
- replacement of tie rods and fasteners
- repair of central unit support elements
- restoration of the tank wall and overflow launder
- lifting mechanism repair
- restoration of the electrical part and instrumentation
Overhaul
An overhaul involves in-depth fault detection with restoration or replacement of worn main units.
- 01
Disassembly and fault detection
Determining the actual condition of parts and units.
- 02
Restoration
Machining, repair or manufacture of parts.
- 03
Replacement
Installation of new components where restoration is technically or economically unjustified.
- 04
Assembly and adjustment
Restoring geometry, adjusting mechanisms and drives.
- 05
Testing
Testing of equipment systems.
- 06
Commissioning
Installation supervision and commissioning, depending on the scope of work.
Drive torque monitoring
Elevated or unstable torque often indicates a change in slurry rheology, sediment build-up or mechanical faults in the rake mechanism — diagnostics start with torque analysis, not with drive replacement.
We diagnose
- actual torque
- drive load history
- rake condition
- sediment build-up on the bottom
- slurry rheology
- condition of the central unit bearings
Possible work
- Gearbox repair or replacement
- Gearing restoration
- Rake mechanism repair
- Torque protection system setup
- Rake lifting mechanism repair
Permissible torque and drive load values are defined by the passport specifications of the specific thickener.
/ Upgrade
Improving the efficiency of existing equipment
If the central unit, trusses and drive still have service life left, upgrading the torque protection and monitoring system may be more rational than full thickener replacement.
Drive
Replacing the motor, gearbox or control system where technically justified.
Torque protection system
Upgrading drive monitoring and emergency protection.
Lifting mechanism
Automating rake lifting on overload.
Feedwell
Upgrading the feed distribution device.
Automation
Monitoring of torque, level, slurry density and drive load.
Important: the potential to increase thickener capacity is determined after analysing actual drive load, feed characteristics and the equipment's technical condition — specific figures are given only based on project calculations.
/ Automation
Torque and drive load monitoring
Automation enables real-time monitoring of torque, slurry level, bed density and lifting mechanism position.
Monitored parameters
- Drive torque control
- Slurry level control
- Bed density control
- Lifting mechanism position control
- Emergency protection
Automation equipment
- PLC
- HMI
- torque sensors
- level sensors
- density sensors
- frequency converters
- control cabinet
Integration with the plant DCS
- Modbus RTU
- Modbus TCP
- PROFINET
- Ethernet/IP
What the operator sees on the HMI
THICKENER — RUNNING
NORMAL- Torque
- kN·m
- Rake Speed
- rpm
- Feed Solids
- %
- Underflow Solids
- %
- Pulp Level
- m
- Drive Power
- kW
/ Installation supervision
Installation supervision
Technical supervision of equipment installation by specialists, checking correct assembly, installation and connection of main units.
- site readiness check
- installation control
- equipment position control
- connection check
- drive installation control
- piping connection control
- recommendations to the installation contractor
- preparing equipment for commissioning
/ START-UP
Commissioning
- 01
Installation check
- 02
Electrics and instrumentation check
- 03
Drive check
- 04
Idle run
- 05
Algorithm tuning
- 06
Start-up under load
- 07
Parameter adjustment
- 08
Handover of equipment to the customer
If provided for in the contract, training of the customer's staff.
/ Spare parts
Spare parts and consumables
- Gearboxes
- Gearing
- Bearing units
- Rake trusses and blades
- Tie rods and fasteners
- Couplings
- Torque and level sensors
- Lifting mechanism components
- Control cabinet components
/ What to choose
Repair, upgrade or replacement?
Repair
When the equipment's original performance needs to be restored.
Goal: return the equipment to working order
Upgrade
When existing equipment is working or repairable, but its throughput, automation or operating characteristics need to change.
Goal: improve the existing system
Replacement
When remaining service life, structural condition or restoration cost make further repair economically unjustified.
Goal: replace the equipment with a new solution
/ How we work
How we handle a request
- 01
Request
We receive the problem description and documentation.
- 02
Analysis
We study the equipment and input data.
- 03
Audit
If needed, we inspect the equipment.
- 04
Solution
We define the scope of repair or upgrade.
- 05
Work
We carry out the agreed set of work.
- 06
START-UP
We test and adjust the equipment.
- 07
Operation
We hand over recommendations and the required documentation.
We work with equipment from other manufacturers
We carry out technical audits, repairs and selection of compatible components for thickeners from various manufacturers after identifying the model and technical parameters.
Completed projects
Examples of completed inspection, repair and upgrade work are in the Projects section.
View projects/ Not sure where to start?
Send the equipment data and we will define the scope of work
The equipment passport, problem description, photos and technical parameters help engineers prepare a preliminary technical assessment.