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Kia-Kaha Mining (Pty) Ltd

Product group

Belt cleaners and scrapers

Primary, secondary and return-side cleaners matched to the belt, the pulley and the material

A belt cleaner system scrapes carry-back off the belt at and just past the discharge, so material does not travel back under the conveyor and build up on the return idlers, the tail pulley, the take-up and the structure. Most conveyors run a primary cleaner on the head pulley and a secondary cleaner immediately after it; heavy carry-back or sticky material adds a tertiary or return-side cleaner. The right combination depends on the belt, the pulley and what is being conveyed.

Overview

What belt cleaners and scrapers covers

A belt cleaner system scrapes carry-back off the belt at and just past the discharge, so material does not travel back under the conveyor and build up on the return idlers, the tail pulley, the take-up and the structure. Most conveyors run a primary cleaner on the head pulley and a secondary cleaner immediately after it; heavy carry-back or sticky material adds a tertiary or return-side cleaner. The right combination depends on the belt, the pulley and what is being conveyed.

Options

Blades and tensioners

ItemWhere it fits
Polyurethane bladeGeneral-purpose primary cleaning. Hardness and compound vary by duty; a wear item, replaced on a schedule.
Tungsten-carbide-tipped bladeSecondary and hard-duty cleaning, and abrasive material. Longer edge life; matched to the belt cover and splice.
Ceramic segmentsVery abrasive, high-tonnage or high-wear duties where tipped blades wear too fast.
Spring / linear tensionerSimple constant-force tensioning for lighter primary and secondary cleaners; low maintenance.
Rotary / torsion tensionerAdjustable blade-to-belt pressure, re-set as the blade wears; common on primary cleaners.
Air / pneumatic tensionerConsistent pressure with remote or automatic adjustment on larger or critical systems.

Choosing

Cleaner positions on the conveyor

PositionWhere it sitsWhat it does
Primary (pre-cleaner)Against the head-pulley face, below the material trajectoryRemoves the bulk of the carry-back. Full-width blade — polyurethane or tipped — held to the belt by a tensioner.
SecondaryJust past the head pulley, off the pulley arcTakes off the thin film the primary leaves. Usually segmented, individually sprung blades, often tungsten-tipped.
Tertiary / return-sideAlong the return run or at the tailCatches the last carry-back and protects the tail pulley, take-up and return idlers on heavy or sticky duties.
SpecialtyAt the head, or a dedicated washboxBelt washboxes, brush cleaners and food-grade scrapers for wet, sticky or hygiene-sensitive material.

Selection

How we select it with you

Send us as much of the following as you have. Partial information is fine — our engineer will come back with the questions needed to finalise the spec, or attend site for an engineering assessment where the problem needs diagnosing first.

  • 01Belt width, belt speed and direction (single or reversing)
  • 02Head-pulley diameter and whether it is lagged
  • 03Belt splice type — mechanical fasteners or vulcanised
  • 04Material — wet / dry / sticky, abrasiveness, lump size and temperature
  • 05The discharge trajectory and the space available at the head chute
  • 06If replacing blades: the existing cleaner make and model, or the blade width, profile and pole size, with a photo

Applications

Where we supply

  • Mine and quarry conveyors — coal, ore, aggregate and mineral handling
  • Bulk terminals, stockyards and transfer towers
  • Cement, lime and clinker handling
  • Sticky and wet materials — washed product, filter cake, fines
  • Reversing belts, where the cleaner must work in one direction only
  • Food-grade and washdown duties with the correct blade and materials

What we supply

Range at a glance

  • 01Primary (pre-)cleaners mounted on the head-pulley face
  • 02Secondary and tertiary cleaners for the residual film and the return run
  • 03Polyurethane, tungsten-carbide-tipped and ceramic blade options
  • 04Spring, rotary/torsion and pneumatic tensioners
  • 05Replacement blades and pole / shaft assemblies cross-referenced from your existing cleaner
  • 06Belt washboxes, brush cleaners and food-grade scrapers for specialty duties
  • 07On-site fitting, tensioning and blade changes with the engineering team

Buyer questions

Common questions

By the belt width and speed, the head-pulley diameter and lagging, the belt splice type, and the material — wet, dry, sticky or abrasive. A primary cleaner sits on the head-pulley face and removes the bulk of the carry-back; a secondary cleaner just past the pulley takes off the film it leaves. Tungsten-tipped or ceramic blades suit abrasive duty; polyurethane suits general cleaning. Send those details and a photo of the head-pulley area.

Related

Request a quote

Send your belt cleaners and scrapers requirement

Not sure which spec you need? Send the machine, material and duty details — our engineer will specify the correct product and quote it.

Enquiry — Belt cleaners & scrapers

Up to 5 files, 3.5 MB each. JPG, PNG, WebP or PDF. Email larger data sheets to sales@kiakahamining.co.za.