-0.5 mm
Feed Size
4
National Patents
10–120 t/h
Capacity Range
6
Models Available
DEFINITION & OVERVIEW
What is the JFH Screen Bowl Centrifuge?
The JFH Screen Bowl Centrifuge is engineered specifically for the dewatering and recovery of -0.5mm coal fines, combining large capacity, low product moisture, and extended component life in a compact, user-friendly system with high-capacity processing with a simple and reliable drive system, consistently low final moisture content, and integration with an intelligent control system for reduced manual intervention.
The JFH model has earned four national patents and has been recognized as a National Key New Product, along with multiple technological advancement awards from China Building Material Group and Tangshan City and verifiable third-party recognition, not just a manufacturer's own claim.
Six standard models are currently available, with bowl sizes ranging from JFH800x1600B up to JFH1600x2400B, covering a capacity range from 10 t/h at the smallest model to 120 t/h at the largest a genuine range to match plant scale rather than a single fixed size.
Verified Patent Portfolio
Four national patents and National Key New Product recognition, third-party verified innovation, plus multiple technological advancement awards.
Purpose-Built for -0.5mm Fines
Specifically engineered for the coal fraction that basket centrifuges and screens generally struggle to handle.
Six Models, One Platform
JFH800x1600B through JFH1600x2400B span 10 to 120 t/h capacity on a consistent design platform.
Parameter | Value |
|---|---|
Target Feed Size | -0.5 mm coal fines |
Capacity Range (across 6 models) | 10 – 120 t/h |
Bowl Diameter Range | 800 – 1600 mm |
Bowl Length Range | 1600 – 2400 mm |
Rotational Speed Range | 500 – 900 r/min |
Motor Power Range | 55 – 315 kW |
Patents | 4 national patents; National Key New Product |
KEY FEATURES
Key Features & Performance Highlights
Every figure and claim below is drawn directly from John Finlay's own product documentation, including patent and award recognition that's independently verifiable.
Verified Innovation Recognition
Four national patents and recognition as a National Key New Product, plus multiple technological advancement awards from China Building Material Group and Tangshan City Real, and third-party-verified differentiation rather than a marketing claim alone.
High-Capacity, Low-Moisture Design
Combines large processing capacity with consistently low final moisture content for fine coal, the combination that matters most on a -0.5mm fraction, where both throughput and moisture are typically hard to hold together.
Compact, Simple Drive System
A simple and reliable drive system keeps the unit user-friendly and reduces manual intervention, supported by integration with an intelligent control system for optimized operation.
WORKING PRINCIPLE
How the JFH Screen Bowl Centrifuge Works
Two dewatering zones on the same rotating assembly handle different parts of the -0.5mm feed.
Fine Coal Feed Entry
Coal fines slurry, typically -0.5mm material, enters the rotating bowl assembly.
Solid-Bowl Sedimentation
Centrifugal force in the solid-bowl section settles and concentrates the finest particles out of the liquid phase.
Conveyance to the Screen Section
Settled solids move from the solid-bowl section toward the screen section for further dewatering.
Screen Drainage
The screen section drains free water from the coarser fraction of the -0.5mm feed, reducing moisture further.
Low-Moisture Product Discharge
Dewatered fines discharge as the final product, with consistently low final moisture content across the operating range.
TECHNICAL SPECIFICATIONS
JFH Screen Bowl Centrifuge | Full Specification
Real specifications for all six standard models, sourced directly from John Finlay’s product brochure.
Model | Capacity (t/h) | Bowl Diameter (mm) | Bowl Length (mm) | Motor Power (kW) |
|---|---|---|---|---|
JFH800 x 1600B | 10-15 | 800 | 1600 | 55 |
JFH900 x 1800B | 15-25 | 900 | 1800 | 90 |
JFH1100 x 1800B | 20-40 | 1100 | 1800 | 160 |
JFH1200 x 1800B | 20-40 | 1200 | 1800 | 185 |
JFH1400 x 2000B | 30-60 | 1400 | 2000 | 200 |
JFH1600 x 2400B | 70-120 | 1600 | 2400 | 315 |
COMPARISON
Screen Bowl Centrifuge vs. Basket Centrifuge
JFH Screen Bowl Centrifuge
Basket Centrifuge
Applications of the JFH Screen Bowl Centrifuge
The -0.5mm target feed size and six-model capacity range point directly at where this technology fits in a coal preparation circuit.
Fine Coal Fraction Dewatering
The named, purpose-built application dewatering the -0.5mm fraction that basket centrifuges and screens generally underperform on.
Froth Flotation Concentrate Dewatering
A common role for this size class, where flotation concentrate is too fine for basket centrifuge screens to handle effectively.
Complementing Basket Centrifuges
Deployed alongside basket centrifuges in the same circuit, each handling the size fraction it's suited to.
Plants Scaling from 10 to 120 t/h
Six models on a consistent platform mean the same proven design scales with plant capacity rather than switching technology.
About John Finlay
Fine Coal Dewatering Equipment Supplier in India
Why John Finlay?
4
National Patents
Verified innovation recognition, plus National Key New Product status and multiple technological advancement awards.
130+
Coal Washery Projects
Completed EPC projects worldwide, including Asia’s largest coking coal washery at 30 MTPA.
EPC
Full Circuit Supply
Supplied as part of complete process equipment packages for both coal and non-coal mineral processing circuits.
IN
India-Based Support
Manufactured at Hefei John Finlay Mining Equipment Co., Ltd. and supported locally in India for installation, commissioning, spares and service.
Screen Bowl Centrifuge | Frequently Asked Questions
Common questions from coal washery process engineers evaluating fine coal dewatering technology.
A basket centrifuge dewaters using a screen alone, which struggles with very fine material. The JFH Screen Bowl Centrifuge combines a solid-bowl section (centrifugal sedimentation for the finest particles) with a screen section (drainage for coarser material) in one unit, purpose-built for -0.5mm coal fines.
The JFH model holds four national patents and is recognized as a National Key New Product, with multiple technological advancement awards from China Building Material Group and Tangshan City independently verifiable recognition, not only a manufacturer’s own description.
Six standard models, from JFH800x1600B (10-15 t/h) up to JFH1600x2400B (70-120 t/h), covering a 10 to 120 t/h capacity range.
Yes, a 1000mm diameter unit was supplied for fines coal duty at M M Washery’s Sawang coking coal washery (CCL, West Bokaro) in 2025.
No, the two are typically deployed together, each handling the size fraction it’s suited to. See our Centrifuge Selection blog post for the basket centrifuge side of this decision.
Is your -0.5mm fraction being dewatered as effectively as it could be?
Our engineers can review your fines circuit and recommend the right JFH model for your capacity.
Talk to an Expert