FILE · CASE_ARCHIVE.INDEX
S/01 · Project archive

Case histories,
documented and delivered.

Real projects, real clients, measurable outcomes. A working archive of Stellex installations — challenge, solution, results, benefits — across every industry we serve.

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CASE / Project Archive
REFERENCE DOSSIER · ALL INDUSTRIES
16 CASES
Stellex Equipments case histories — installed bulk material handling projects across industries
REF · CASE-ARCHIVEMADE IN INDIA
16Case studies
4Industry sectors
MeasuredResults
18+ yrsEngineering
S/02 · Food & Beverages

5 cases. From the archive.

Installations delivered for the food & beverages sector — every project documented from challenge to benefit.

CASE / 01CLIENT · Large Scale Dairy Plant

Khoa (Khoya) Cooling Screw Conveyor System

Challenge

Freshly produced khoa (milk solids/khoya) comes out at high temperature and requires rapid cooling. Traditional cooling methods such as trays and manual spreading caused hygiene issues and inconsistent cooling, while exposure to ambient air led to contamination risks and product quality variation.

Solution
  • Food-Grade Cooling Screw Conveyor System designed for continuous cooling and gentle handling of hot khoa immediately after production
  • Stainless steel (SS304/SS316) food-grade construction
  • Jacketed trough with chilled water circulation for indirect cooling
  • Enclosed screw system to maintain hygienic, contamination-free operation
Results
  • Achieved uniform and controlled cooling of khoa in continuous flow
  • Improved product consistency in texture and moisture content
  • Reduced cooling time compared to traditional tray-based methods
Benefits
  • Hygienic processing environment due to fully enclosed system
  • Consistent product quality with uniform cooling
  • Faster cooling cycle time for higher production throughput
  • Scalable solution for khoya, mawa, and milk solids processing plants
CASE / 02CLIENT · Wheat Processing Plant (200 TPD)

Wheat Flour Mill

Challenge

Needed an enclosed, low-maintenance solution to replace belt conveyors prone to dust leakage.

Solution
  • SS 304 screw conveyors for flour transfer from roller mills to packaging lines
  • Dust-tight design with inspection hatches
  • Quick-clean covers for hygiene compliance
Results
  • Dust emissions reduced by 85%
  • Product loss minimized
  • Improved plant hygiene and safety compliance
Benefits
  • Improved process efficiency and automation
  • Reduced labor and manual handling
  • Better hygiene and dust control
  • Longer equipment life due to durable materials
  • Flexibility for multiple grain types and processing stages
CASE / 03CLIENT · Confectionery Manufacturer

Sugar Powder Processing Line

Challenge

Faced dust buildup around their sugar packaging area, causing hygiene issues and increased cleaning time.

Solution
  • SS 316 enclosed screw conveyors
  • Sealed inlet and discharge points
  • Integrated dust collector at discharge hopper
Results
  • 95% reduction in airborne dust
  • Faster cleaning cycles
  • Improved compliance with hygiene audits
Benefits
  • Improved Hygiene – Enclosed systems prevent contamination
  • Faster and easier cleaning
  • Compliance with audit requirements
CASE / 04CLIENT · Spice Processing Unit (3 tons/day)

Turmeric Powder Plant

Challenge

Faced challenges with dust leakage and flavor loss in open belt conveyors.

Solution
  • SS 316 fully enclosed screw conveyors
  • Dust-tight design with gasketed inspection hatches
  • Variable speed drives for feeding control
Results
  • Dust levels reduced by 90%
  • Improved aroma retention in packaged spices
  • Faster cleaning between product changeovers
Benefits
  • Improved hygiene and flavor retention
  • Reduced cleaning downtime
  • Better quality packaged products
CASE / 05CLIENT · Grain Processor (20 TPH facility)

High-Capacity Grain Handling System

Challenge

Required conveyors to feed multiple silos and milling units during plant upgrade.

Solution
  • SS 304 screw conveyors, 500 mm diameter, 12 m length
  • Heavy-duty hanger bearings for continuous operation
  • Integrated variable frequency drives for flow control
Results
  • Reduced equipment footprint by 25%
  • Increased throughput without additional labor
  • Continuous, reliable operation with minimal downtime
Benefits
  • Longer equipment life due to durable construction
  • Greater automation and throughput
  • Flexibility for future expansion
S/03 · Breweries & Distilleries

3 cases. From the archive.

Installations delivered for the breweries & distilleries sector — every project documented from challenge to benefit.

CASE / 01

High Speed Mixer for Industrial Powder Blending

Challenge

Required fast and uniform mixing of dry powders and additives, where conventional mixers showed long mixing cycles and inconsistent homogeneity, and a system was needed capable of handling varying bulk densities and batch sizes.

Solution
  • High Speed Industrial Mixer (High Shear / Rapid Batch Mixing System) designed to achieve quick and uniform blending of powders and granular materials
  • Optimized mixing chamber geometry for efficient particle movement
  • Heavy-duty motor and drive system for continuous industrial operation
  • Optional spray/nozzle arrangement for liquid binder addition
Results
  • Achieved highly uniform mixing in significantly reduced cycle time
  • Increased batch throughput and production efficiency
  • Enhanced process repeatability across multiple batches
Benefits
  • Faster mixing cycles leading to higher productivity
  • Improved product homogeneity and quality consistency
  • Reduced material wastage due to controlled, enclosed operation
CASE / 02

Double Shaft Industrial Mixer (Twin Shaft Paddle Mixer)

Challenge

Required high-intensity, uniform blending of cohesive, dry and semi-wet materials across varied bulk densities, where conventional single-shaft mixers showed longer cycles and segregation issues during large-scale production.

Solution
  • Double Shaft Industrial Mixer (Twin Shaft Paddle Mixer) developed to deliver high-intensity, uniform blending through counter-rotating mixing action and advanced paddle geometry
  • Twin counter-rotating shafts ensuring intense mechanical agitation and rapid material turnover
  • Heavy-duty paddle design for effective mixing of cohesive, dry, and semi-wet materials
  • Robust gearbox and drive system designed for continuous, high-load industrial operation
  • Optional liquid dosing/spray system for binder or additive addition during mixing
Results
  • Achieved highly uniform and homogeneous mixing even with challenging material compositions
  • Significantly reduced mixing time compared to conventional single-shaft systems
  • Improved batch consistency across large-scale production runs
  • Enhanced handling of varied bulk densities without segregation issues
Benefits
  • Faster and more efficient mixing cycles leading to higher plant throughput
  • Superior product consistency and improved end-product quality
  • Reduced segregation and improved blending accuracy
  • Lower operational downtime due to robust and low-maintenance design
  • Suitable for a wide range of industrial applications including chemicals, construction materials, and food processing
CASE / 03

Premasher System for DDGS (Distillers Dried Grains with Solubles) Plant

Challenge

Handling high-moisture, sticky biomass that tends to form lumps and agglomerates; managing non-uniform feed consistency from fermentation and dewatering stages; preventing material bridging and clogging in continuous processing lines; dealing with variable particle size and fibrous content in DDGS mash; avoiding uneven drying and heat inefficiency in downstream dryers; and reducing equipment wear caused by abrasive grain residues and impurities.

Solution
  • Premasher System developed to ensure efficient pre-conditioning of mash by breaking down agglomerates, improving particle uniformity, and enhancing downstream drying and handling performance
  • High-torque pre-mashing rotor designed to break lumps and agglomerated wet grains before drying
  • Heavy-duty shaft and breaker assembly for handling sticky, high-moisture DDGS mash
  • Optimized internal geometry to ensure consistent material flow and prevent buildup or choking
  • Easy access design for inspection, cleaning, and maintenance in continuous plant operation
Results
  • Achieved effective breakdown of wet lumps and inconsistent mash structures
  • Improved uniformity of feed material entering dryers or subsequent processing stages
  • Reduced risk of blockages, bridging, and uneven drying in downstream equipment
  • Enhanced overall stability of DDGS processing line with smoother material flow
  • Better moisture distribution leading to more consistent final DDGS quality
Benefits
  • Increased efficiency of drying and downstream handling operations
  • Improved product consistency in final DDGS output
  • Reduced energy consumption due to more uniform feed preparation
  • Enhanced plant throughput with smoother and continuous processing flow
  • Reduced maintenance requirements due to robust construction
S/04 · Plastics & Polymers

4 cases. From the archive.

Installations delivered for the plastics & polymers sector — every project documented from challenge to benefit.

CASE / 01CLIENT · Masterbatch Manufacturer

Masterbatch Handling in an Extrusion Plant

Challenge

Needed to move color-additive pellets to an extrusion line without contamination or damage.

Solution
  • SS 316 enclosed screw conveyor with gentle flights
  • Dust-tight seals to prevent powder release during pellet coating
  • Quick-access cleaning panels for rapid color changeovers
Results
  • Zero pellet degradation in quality checks
  • Faster production changeovers by 30%
  • Reduced waste and cleaning downtime
Benefits
  • Maintain pellet integrity for high-quality output
  • Reduce dusting and environmental hazards
  • Improve plant cleanliness and safety
  • Meet food and medical-grade compliance requirements when needed
CASE / 02CLIENT · Polymer Compounding Unit

Polymer Powder Transfer to Compounding Mixer

Challenge

Needed to transfer fine polymer powder to mixing hoppers without creating dust or risking contamination.

Solution
  • SS 304 enclosed screw conveyor with sealed bearings
  • Gentle pitch flight design to prevent surging
  • Quick-disassembly covers for color and resin changeovers
Results
  • Minimal dusting during transfer
  • No cross-contamination in product batches
  • Reduced changeover and cleaning time
Benefits
  • Dust-free, clean operation for improved worker safety
  • Consistent batch quality
  • Faster product changeover cycles
  • Compliance with food and safety standards
CASE / 03CLIENT · Injection Molding Manufacturer

Plastic Pellet Conveying for Injection Molding Plant

Challenge

Required reliable pellet transfer from silos to injection molding machines while minimizing pellet breakage and surges.

Solution
  • Variable-pitch SS 304 screw conveyors sized for high throughput
  • Anti-wear flights for abrasive pellets
  • Enclosed housing to prevent pellet loss
Results
  • Uniform, surge-free material flow
  • Significantly reduced pellet breakage and waste
  • Stable machine feed rates
Benefits
  • Greater process stability and automation
  • Reduced downtime and material losses
  • Higher product quality in finished parts
CASE / 04CLIENT · Plastics Recycling Plant

Recycled Flake & Regrind Transfer System

Challenge

Needed to convey recycled flakes and regrind to extrusion lines with minimal contamination and equipment wear.

Solution
  • Wear-resistant alloy screw conveyors with variable speed control
  • Fully enclosed design to prevent dust and cross-contamination
  • Temperature monitoring for heat-sensitive regrind
Results
  • Lower maintenance and cleaning costs
  • No dust escape or product contamination
  • Efficient, flexible transfer of multiple regrind materials
Benefits
  • Longer conveyor life for abrasive materials
  • Cleaner, safer plant environment
  • Supports circular economy and recycling goals
S/05 · Chemicals

4 cases. From the archive.

Installations delivered for the chemicals sector — every project documented from challenge to benefit.

CASE / 01CLIENT · Pigment Manufacturer

Pigment Handling in a Specialty Chemicals Plant

Challenge

Needed to convey paint pigment, a fine and abrasive powder that causes corrosion over time.

Solution
  • SS 316 polished screw conveyor with heavy-duty flights
  • Dust-tight sealing system to prevent pigment escape
  • Quick-disassembly covers for easy cleaning during colour changes
Results
  • 30% reduction in downtime
  • Extended equipment lifespan by over 3 years
  • Consistent product quality without contamination
Benefits
  • Long service life in corrosive environments
  • Reduced maintenance and downtime
  • Improved product purity
  • Compliance with safety and hygiene standards
CASE / 02CLIENT · Global Tire Manufacturer

Carbon Black Handling in Rubber Manufacturing

Challenge

A global tire manufacturer needed a safe way to convey carbon black from bulk storage to mixers.

Solution
  • SS 316 enclosed screw conveyor with anti-static UHMW liners
  • ATEX Zone 20 compliance for internal powder handling
  • Dust extraction ports integrated at inlet and discharge points
Results
  • 100% dust containment
  • Zero explosion incidents in 5+ years of operation
  • Reduced operator exposure to hazardous material
Benefits
  • Reduced risk of explosions and fire hazards
  • Compliance with global safety regulations (ATEX, OSHA)
  • Safer working environment for plant personnel
  • Protection of surrounding equipment from contamination and abrasion
CASE / 03

Heating Screw Reactor for Pyrolysis Process

Challenge

Need for a continuous pyrolysis system instead of batch processing; difficulty in maintaining uniform heat distribution in conventional reactors; requirement for an oxygen-free (inert) environment to prevent combustion; and inconsistent output quality of pyrolysis oil and char in existing systems.

Solution
  • Heating Screw Reactor (Thermal Screw Conveyor System) designed and implemented to enable continuous pyrolysis of plastic waste
  • Indirect heating via hollow shaft and jacketed screw system
  • Nitrogen purging for oxygen-free operation
  • Variable speed screw for controlled residence time
  • Continuous feeding and discharge system
Results
  • Achieved stable continuous pyrolysis operation (24/7 capability)
  • Improved and consistent pyrolysis oil yield and quality
  • Efficient separation of gas, oil, and char fractions
  • Reduced operational downtime compared to batch reactors
  • Enhanced process stability and scalability for industrial use
Benefits
  • Higher efficiency through continuous processing
  • Energy savings due to uniform indirect heating
  • Improved safety with fully sealed oxygen-free system
  • Reduced labor dependency and manual handling
  • Better product yield and process consistency
CASE / 04CLIENT · Global Tire Manufacturer

Rubber Manufacturing Carbon Black Feeding

Challenge

A global tire manufacturer was facing excessive wear and dust escape when feeding carbon black to their mixers.

Solution
  • SS 316 screw conveyor with abrasion-resistant flight edges
  • Dust-tight seals at all junctions
  • ATEX-compliant anti-static design to prevent ignition risks
Results
  • Increased equipment lifespan by 3+ years
  • 100% dust containment
  • Cleaner plant environment and safer working conditions
Benefits
  • Longer equipment life due to wear-resistant construction
  • Cleaner, safer working conditions with full dust containment
  • Improved product yield by reducing material loss
  • Compliance with safety regulations (ATEX, OSHA)
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