Process Equipment Manufacturing

Coal Beneficiation Equipment Engineered for Indian Coal

JFI manufactures a complete range of patent protected coal washery process equipment, from heavy media cyclones and vibrating screens to magnetic separators and centrifuges designed specifically for India’s high-ash, high-NGM coal characteristics. Faster than imports. Backed by 50 years of operational data.

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Process Equipment Manufacturing Interior shot of JFI's manufacturing facility — HMC cyclones or vibrating screen frames on the workshop floor, ideally with active machining or welding. Communicates in-house manufacturing capability

Heavy Media Cyclones

Patent-protected geometry for Indian coal

Vibrating Screens

Banana, D&R, linear, circular motion

Magnetic Separators

99.5%+ magnetite recovery rate

Centrifuges

Basket & scroll for coal fines dewatering

DM Bath

Dense media bath for coarse coal

3 Product Cyclones

Coking coal: clean / middlings / reject

The Challenge & Our Answer

Equipment Wasn't Built for Your Coal.

What Weak Design Looks Like

The Problem
Across India's coal sector, plant operators routinely suffer from yield losses of 8–15% due to undersized separation circuits, inadequate desliming stages, or equipment selection mismatched to run-of-mine coal characteristics. A washery designed without rigorous float-sink analysis and process simulation is simply leaving recoverable product on the reject pile.
Yield penalties of 8–15% from poor circuit design, costing crores per annum
Washery setups that cannot meet statutory ash% specifications for dispatch
Undersized thickeners and tailings ponds triggering environmental non-compliance
Equipment selection based on vendor preference, not plant-specific ROM data
No provision for future capacity expansion in the original plant layout

Engineering Grounded in Data

The JFI Solution
JFI's Design & Engineering team begins every project with statistically robust washability analysis of your ROM coal, defining the exact density cuts, fine coal recovery targets, and water balance requirements before a single piece of equipment is specified. The result is a coal washery plant design that delivers its rated yield from day one and is engineered to scale.
Data-driven process selection, HMC, jigging, or spirals based on your coal, not convention
Guaranteed compliance with BIS/ECL/MCL statutory ash and moisture specifications
Integrated environmental controls: zero-liquid-discharge options available
Vendor-neutral equipment selection tied to life-cycle cost, not capex alone
Modular plant layouts pre-designed for phased capacity expansion
Equipment Range

7 Equipment Lines. One Source.

Every John Finlay India equipment line is manufactured in India, tested against Indian coal washability data, and backed by our O&M teams for post-installation technical support — a combination no imported OEM can match.

 
 

Heavy Media Cyclones (HMC)

Plant capacity design range: 0.5 MTPA to 30 MTPA in a single installation
Feed coal top size: 300mm ROM down to ultrafine 0.5mm flotation feed
Modular design blocks allow staged capacity expansion without full plant redesign
Both thermal coal (5500+ kcal/kg) and coking coal (low-ash, low-sulphur) circuit expertise
Simultaneous design of two-product and three-product washery configurations

Heavy Media Cyclones (HMC)

Plant capacity design range: 0.5 MTPA to 30 MTPA in a single installation
Feed coal top size: 300mm ROM down to ultrafine 0.5mm flotation feed
Modular design blocks allow staged capacity expansion without full plant redesign
Both thermal coal (5500+ kcal/kg) and coking coal (low-ash, low-sulphur) circuit expertise
Simultaneous design of two-product and three-product washery configurations

Heavy Media Cyclones (HMC)

Plant capacity design range: 0.5 MTPA to 30 MTPA in a single installation
Feed coal top size: 300mm ROM down to ultrafine 0.5mm flotation feed
Modular design blocks allow staged capacity expansion without full plant redesign
Both thermal coal (5500+ kcal/kg) and coking coal (low-ash, low-sulphur) circuit expertise
Simultaneous design of two-product and three-product washery configurations

Capacity & Scale Range

Plant capacity design range: 0.5 MTPA to 30 MTPA in a single installation
Feed coal top size: 300mm ROM down to ultrafine 0.5mm flotation feed
Modular design blocks allow staged capacity expansion without full plant redesign
Both thermal coal (5500+ kcal/kg) and coking coal (low-ash, low-sulphur) circuit expertise
Simultaneous design of two-product and three-product washery configurations

Process Engineering Precision

Float-sink washability analysis at minimum 8 density fractions for Tromp curve accuracy
Mass balance modelling to ±2% accuracy before equipment is specified
Water balance closed-circuit modelling, designed for zero process-water discharge
Dense media recovery circuit design, magnetite loss targets ≤0.5 kg/tonne
Fines circuit design: spirals, flotation cells, disc filters, filter presses, site-specific selection
DGMS Statutory Compliance

Safety is Not a Protocol. It's a Culture JFI Installs.

In coal washeries, safety failures and production failures are the same event; a conveyor jam, an unguarded screen, or an unlogged electrical fault can shut down a plant for days and trigger a DGMS show-cause notice that stalls operations for weeks.

Dedicated Safety Officer deployment at all John Finlay India supervised plants: resident, not visiting

Statutory register maintenance: Form X, Register of Accidents, Workmen's compensation records

Monthly safety audits against DGMS CMR 2017 and Coal Mines Regulations checklist

Emergency response plan (ERP) development, crew drills, and fire safety system verification

Lockout/Tagout (LOTO) procedure implementation for all maintenance windows

Environmental compliance: effluent monitoring, coal dust suppression, tailings pond level tracking

Pre-inspection readiness programme, no surprises when DGMS inspectors arrive on-site

Total capacity under JFI O&M
150 MTPA
Target plant uptime SLA
90 %+
Years of live washery O&M
40 +
Fatal incidents at JFI-managed plants (FY24–25)
0
Core Service Scope

What JFI Delivers

Each engagement is scoped to the client's stage of project development. John Finlay India can enter at the pre-concept stage or take over a stalled detailed design.

Pre-Feasibility & Concept Design

Initial coal characterisation, order-of-magnitude capital cost estimates (±30%), plant capacity modelling, and circuit selection rationale for thermal and coking coal. Delivered in 4–6 weeks.

Concept Phase

Detailed Feasibility Report (DFR)

Bankable DFR with washability analysis, environmental baseline, statutory permit roadmap, water management plan, capital cost estimates (±10%), and financial modelling suitable for lender review.

Planning Phase

Process Flow Diagram & Mass Balance

Circuit-level process design covering coarse coal (HMC/DM Bath), small coal (jigging/spirals), fines (flotation/filtration), and tailings management. Full water balance with recirculation modelling.

Design Phase

3D Plant Layout & Structural Design

Full 3D plant model with structural steel design, equipment foundation loads, piping and instrumentation diagrams (P&IDs), and civil layout, BIM-ready for contractor handover.

Engineering Phase

Equipment Selection & Tender Support

Vendor-neutral equipment sizing and specification: heavy media cyclones (25mm–1000mm dia.), banana screens, centrifuges, magnetic separators. Full tender document preparation and technical bid evaluation.

Procurement Phase

Regulatory & Environmental Design Integration

EIA-aligned plant design, zero-liquid-discharge options, coal slurry pond sizing per DGMS norms, effluent treatment design, and statutory submission-ready drawing packages.

Compliance

About John Finlay

Why 130+ Coal Mine Operators Trust John Finlay to Design Their Washeries

John Finlay India’s engineering division is not a drawing office that has never seen a plant operate. Every design decision is informed by our O&M teams, who supervise live washery operations managing a combined 179.2 MTPA of installed coal beneficiation capacity across India.

That operational feedback loop, from live plant to design desk is what makes JFI washery designs inherently maintainable, operable, and profitable. We design for what actually happens underground and on the belt, not for what looks elegant on paper.

Our international footprint, combined with deep knowledge of Indian coal geology (high-ash Gondwana seams, Assam Tertiary coals, Jharia coking coal), means JFI engineers bring context that no purely international consultant can replicate.

50+
Years of washery engineering
130+
Commissioned washery projects
179MTPA
Total installed O&M capacity
30MTPA
Largest single plant designed