CONSTROMECHTMEngineering Solution

Industries · Pulp & Paper

Pulp & Paper IndustryChain Conveying Systems & Components

Chain equipment for every stage of a pulp & paper plant: what each machine does, the chain it runs on and the design data behind it — with the CONSTROMECH products that go into it.

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5
Plant stages
10
Equipment systems
5
Chain types

Follow the material flow

Chain equipment, stage by stage

Plant zones in the order material moves through them. Each machine lists its duty, the chain it runs on and the design points we build to.

01

Woodyard & Chip Handling

3 equipment systems

Apron Feeders for Wood Chips / Logs

  • Purpose: Controlled feed of logs or wood chips from truck dumpers or silos to screening or chipping units.
  • Chain Type: Drop-forged link chain with wide apron pans.

Design Features

  • Pan width: 800–2000 mm (Higher customizable sizes available).
  • Chain pitch: 160 mm / 200 mm / 250 mm (Higher customizable sizes available).
  • Pans with anti-jam cutouts and curved edges.
  • Capacity: 200–800 TPH (Higher customizable parameters available).
We makeApron Feeder Chain

Chip Reclaimers

  • Purpose: Automated chip recovery from radial piles or silos.
  • Chain Type: Twin-strand forged chain with scraper flights.

Specs

  • Flights made of AR steel or UHMWPE-laminated bars.
  • Slow-speed operation with self-cleaning design.
We makeStacker & Reclaimer ChainRound Link Chain Conveyor

Drag Chain Conveyors (Green Chips / Oversize Transfer)

  • Function: Horizontal or inclined transfer from screening to silo or metering bin.
  • Chain Type: Drop-forged steel chain with fixed or articulated flights.

Extras

  • Overflow chutes and inspection hatches.
  • Optional bin activators at discharge end.
We makeDrag Chain Conveyor

02

Pulping Area (Digester Feed & Washing)

2 equipment systems

Bucket Elevators (Dry / Moist Chip Elevation)

  • Purpose: Elevating washed or dry chips to digester or soaking tanks.
  • Chain Type: Central forged chain or round link bucket elevator chain.

Design Highlights

  • Height: 15–40 m (Higher customizable sizes available).
  • Buckets with curved profile for chip containment.
  • Self-cleaning bottom pulleys.
We makeRound Link Chain ElevatorPlate Link Chain Elevator

Chemical Feeding Conveyors (Lime, Caustic Soda)

  • Purpose: Dosing powdered additives to digesters or mixers.
  • Chain Type: Forged scraper chain in enclosed trough.

Features

  • Designed to eliminate buildup.
  • Anti-static and corrosion-resistant liners available.
We makeRound Link Chain Conveyor

03

Stock Preparation & Trim Handling

2 equipment systems

Trim Conveyors (Broke & Edge Waste)

  • Function: Conveying paper edge trims, reject sheets, broke to repulper.
  • Chain Type: Flat-top drag chain or steel hinged chain.

System Details

  • Built-in tensioners.
  • Floor-level or mezzanine-mounted systems.
  • Optional diverter gates for dual discharge points.
We makeDrag Chain Conveyor

Drag Chain Conveyors (Rejects & Screen Residue)

  • Function: Disposal of heavy rejects like plastic, metal wires, sand.
  • Chain Type: Forged steel drag chains with open flight paddles.

Design

  • Trough liners for abrasive residue.
  • Screw–chain hybrid versions also available.
We makeDrag Chain Conveyor

04

Recovery Boiler, ESP, and Ash Handling

2 equipment systems

Flow Conveyors for ESP Dust

  • Purpose: Transfer dry fly ash from recovery boiler baghouse to silo.
  • Chain Type: Drop-forged scraper chain with minimal spillage clearance.

Specs

  • Chain pitch: 142–200 mm (Higher customizable sizes available).
  • Air-tight casings.
  • Optional nitrogen blanketing for explosive dust control.
We makeFlow Conveyor ChainRound Link Chain Conveyor

05

Final Storage & Dispatch

1 equipment system

Silo Discharge Chain Conveyors

  • Purpose: Controlled discharge of chips, ash, lime, or pulp powder to truck loaders or screw feeders.
  • Chain Type: Central drag chain or dual-strand paddled chain.

Options

  • Variable pitch for metered flow.
  • Integration with telescopic spouts.
We makeDrag Chain Conveyor

Typical Chain Types Used in Pulp & Paper Mills

Chain TypeApplicationsKey Characteristics
Drop-Forged Link ChainApron feeders, drag conveyorsDurable, shock and chip-resistant, up to 600 TPH
Central ChainBucket elevators, silo dischargesAccurate pitch, high-lift strength
Round Link ChainDusty chip elevators, boiler dust handlingDIN 764/22252 compliant, low maintenance
Flat Top ChainTrim conveyors, edge handlingSmooth top surface, low-noise operation
Scraper Chain (Twin Strand)ESP/ash discharge, submerged scraper conveyorsHigh torque, continuous operation in wet/abrasive conditions

Made by CONSTROMECH

Equipment we supply for pulp & paper plants

All products
Apron Feeder Chain

Apron Feeder Chain

9 sizes

Forged apron feeder chains with wear-resistant pans for slow-speed, heavy-load conveying of high-impact, abrasive or large-size material in surge hoppers, crushers and kilns.

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Stacker reclaimer chain

Stacker & Reclaimer Chain

31 sizes

Chains for bridge-type reclaimers and stackers in cement and power plant yards — continuous duty on abrasive limestone, coal and clinker with minimal wear.

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Drag chain conveyor chain with flight bars

Drag Chain Conveyor

Drag chain conveyor chains and matched sprocket assemblies for clinker, ash and other abrasive bulk material.

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Round link chain bucket elevator assembly — chains, shackles and bucket

Round Link Chain Elevator

Customised round link chain bucket elevator solutions — chain, sprocket and shaft assemblies, attachments, buckets and boot bearings engineered to work together.

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Central plate link chain bucket elevator with head sprocket

Plate Link Chain Elevator

Pin-bush type plate link chain elevators, supplied with the assemblies that govern the whole elevator — chain, sprockets, rim wheels, buckets and boot bearings.

View details
Flow conveyor chain with U-flights

Flow Conveyor Chain

14 sizes

Flow conveyor chains for horizontal or low-angle conveying of powdered and granular material in cement kilns, fly ash systems and additive dosing lines — controlled flow with less wear and noise.

View sizes & details
Pulp & Paper Mill ServicesRetrofit, capacity enhancement, conversion and commissioning — zone by zone through your pulp & paper plant.View services

CMECH Technical Services

How our field team supports pulp & paper plants

Every engagement is carried out by our own field engineers — from the first inspection to commissioning and hand-over.

How we work

  • Site Inspections & Equipment Audits

    Bucket elevators, conveyors, ash systems, reclaimers

  • Installation & Commissioning Supervision

    Chains, buckets, bearings, drive units, structural supports

  • Corrective & Preventive Maintenance

    Hot/cold chain replacement, sprocket rebuilds, belt tracking

  • Retrofit & System Upgradation Projects

    Chain-to-belt elevator conversions, scraper design mods, capacity enhancements

  • Operational Optimization Support

    Root cause analysis, performance tuning, load balancing

Other industries we serve

All industries

Chains or spares for your pulp & paper plant?

Send us your drawing or requirement — we respond within one business day.

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