Coke & Coal Testing Systems

SEE OUR PRODUCTS

Explore Our Coke & Coal Testing Solutions

Coke Reactivity Tester (CSR-CRI)

A fully automated, IS 4023 compliant system for accurate measurement of Coke Reactivity Index (CRI) and Coke Strength after Reaction (CSR). 

Engineered with a high-uniformity 1300°C vertical tubular furnace, intelligent gas control, and Inconel 600 reaction assembly, the system delivers repeatable, standards-driven performance for integrated steel plants and metallurgical laboratories.

A fully automated, IS 4023 compliant system for accurate measurement of Coke Reactivity Index (CRI) and Coke Strength after Reaction (CSR). 

Engineered with a high-uniformity 1300°C vertical tubular furnace, intelligent gas control, and Inconel 600 reaction assembly, the system delivers repeatable, standards-driven performance for integrated steel plants and metallurgical laboratories.

Features

High-Temperature Performance

Vertical tubular furnace up to 1300°C with microprocessor-based PID temperature control and thyristor-driven power regulation for stable thermal uniformity.

Intelligent Process Automation

Software-driven sequencing with real-time monitoring, graphical data logging, and automated reporting, minimizing operator dependency and maximizing repeatability.

Precision Gas & Reaction Control

SS-304 manifold for CO₂ and N₂ with integrated gas detection system for safe and accurate simulation of blast furnace conditions.

Robust Industrial Construction

Inconel 600 retort and thermowell, heavy-duty air cooling chamber, and floor-mounted mild steel structure designed for continuous plant operation. Enhance reliability, traceability, and operational efficiency with a fully automated CSR–CRI solution engineered for demanding steel plant environments.

Pilot Coke Oven

A fully integrated, ISO 18894 compliant Pilot Coke Oven engineered to accurately simulate industrial coke oven conditions at pilot scale.  
Featuring a high-uniformity heating chamber up to 1300 ± 50°C, hydraulic cake formation and charging, automated pushing, and integrated water quenching, the system delivers seamless end-to-end operation. Built on a software platform with real-time visualization and secure data logging, it provides accurate, traceable pilot-scale carbonization aligned to modern metallurgical standards.

A fully integrated, ISO 18894 compliant Pilot Coke Oven engineered to accurately simulate industrial coke oven conditions at pilot scale.  
Featuring a high-uniformity heating chamber up to 1300 ± 50°C, hydraulic cake formation and charging, automated pushing, and integrated water quenching, the system delivers seamless end-to-end operation. Built on a software platform with real-time visualization and secure data logging, it provides accurate, traceable pilot-scale carbonization aligned to modern metallurgical standards.

Features

Superior Heating

U-type elements and thyristor control ensure even thermal distribution.

Efficient Workflow

Hydraulic pressing, detachable charge box, and secure double-door furnace for safe, uniform operation.

Automated Quenching

Electrical pusher and sprinkler cooling tower rapidly cools from 1100°C to 100°C.

Smart Controls

Real-time visualization, temperature profiling, secure data logging, and RS-485 integration.

Rugged Design

High-efficiency insulation (shell ≤ 50°C above ambient), gas incineration chimney, and heavy-duty construction.

(Available in 7kg & 115 kg)

(Available in 7kg & 115 kg)

Hardgrove Grindability Index

Coal grindability with precision and repeatability using our HGI Apparatus, compliant with IS 4433:1979 standards. This robust system features a hardened EN-19 steel grinding assembly with eight precision balls, automated digital counter, and comprehensive sieving for accurate, standardized testing. 

Coal grindability with precision and repeatability using our HGI Apparatus, compliant with IS 4433:1979 standards. This robust system features a hardened EN-19 steel grinding assembly with eight precision balls, automated digital counter, and comprehensive sieving for accurate, standardized testing. 

Features

Precision Grinding

Heat-treated EN-19 steel bowl and 100 mm ring for wear resistance and stability.

Controlled Load & Speed

284 ± 2 N force at 19–21 RPM for exact compliance.

Uniform Media

Eight 25.4 mm ± 0.003 mm steel balls for consistent particle reduction.

Automated Cycles

Digital counter preset to 60 ± 0.25 revolutions, reducing operator error.

Full Sieving Kit

ASTM E-11 sieves (No. 16, 30, 200), 1.18 mm sieve, optional 600/75 micron meshes, and protective sieves.

Reliable Build

0.5 HP motor, 230V AC, vibration-free base frame for lab or plant use.

Bomb Calorimeters

Precision Bomb Calorimeter for accurate determination of gross calorific value (GCV) per IS 1350 standards, achieving 1–2% repeatability with 300 ml bomb capacity. Delivers test results in 3–4 minutes via rapid ignition (5–10 s) and high-resolution temperature measurement (0–10°C). 

Precision Bomb Calorimeter for accurate determination of gross calorific value (GCV) per IS 1350 standards, achieving 1–2% repeatability with 300 ml bomb capacity. Delivers test results in 3–4 minutes via rapid ignition (5–10 s) and high-resolution temperature measurement (0–10°C). 

Features

Accuracy & Repeatability

±1–2% for GCV in coal, biomass, and fuels.

Test Cycle

3–4 min total; ignition time 5–10 s.

Thermal Performance

Resolution 0–10°C; ambient range 5–35°C (extended 0–40°C).

Sample Capacity

300 ml stainless steel bomb.

Power & Safety

230 VAC, 50 Hz; 1 A fuse-protected.

Micum Drum

Robust Micum Drum for precise coke strength and degradation analysis per IS 1354:1992 and ISO 556. Features abrasion-resistant steel drum (1000 ± 5 mm × 1000 ± 5 mm), 25 RPM operation for 100 revolutions in 4 minutes, driven by 3 HP 415 V geared motor with 1:60 reduction gearbox. 

Robust Micum Drum for precise coke strength and degradation analysis per IS 1354:1992 and ISO 556. Features abrasion-resistant steel drum (1000 ± 5 mm × 1000 ± 5 mm), 25 RPM operation for 100 revolutions in 4 minutes, driven by 3 HP 415 V geared motor with 1:60 reduction gearbox. 

Features

Drum Construction

10 mm ± 2 mm side plates, 6 mm periphery; wear-resistant graded steel.

Rotational Control

25 RPM; microprocessor programmer with time/RPM presets and mechanical braking.

Drive System

3 HP high-torque motor; stable speed regulation.

Framework

Heavy-duty MS channels/angles for vibration minimization; hardened SS shaft with precision bearings.

Operator Features

Detachable IS-compliant door with sealing; control panel with safety interlocks and indicators.

Autosampler

Salvin designs and manufactures Linear, Cross Belt, and Rotary Autosamplers for accurate, bias-free sampling of bulk materials in line with industrial standards. Engineered for reliable sampling directly from moving conveyors, each system integrates heavy-duty mechanical assemblies with PLC-HMI controls and customised software.

Crossbelt Autosampler

Linear Autosampler

Rotary Autosampler

Non-metallic scooping bucket tip (belt-friendly design)

Automated sample receiver integration

3 HP geared motor, 415V, 3-phase supply

HMI-PLC control panel

Designed for pellet operations and continuous plant duty

Linear Autosampler

Crossbelt Autosampler

Rotary Autosampler

Suitable for varied belt widths and material sizes

Programmable sampling frequency

Heavy-duty cutter assembly

Ideal for coal, minerals, and bulk solids

Linear Autosampler

Crossbelt Autosampler

Rotary Autosampler

Suitable for varied belt widths and material sizes

Programmable sampling frequency

Heavy-duty cutter assembly

Ideal for coal, minerals, and bulk solids

Riffle Sample Divider

Precision sample splitter for unbiased bulk material reduction, as per ASTM standards. Stainless steel construction with adjustable V-chutes (precision-ground aluminum bars), lever-release hopper, and multi-configuration design for consistent splitting across particle size ranges. 

Precision sample splitter for unbiased bulk material reduction, as per ASTM standards. Stainless steel construction with adjustable V-chutes (precision-ground aluminum bars), lever-release hopper, and multi-configuration design for consistent splitting across particle size ranges. 

Features

Chute System

Adjustable V-shaped assembly; 45° slope; pivot rod with wing nut tensioning for four configs.

Hopper Mechanism

Proprietary lever-release for controlled, segregation-free discharge.

Versatility

Functions as four splitters; optimized chute widths per particle size.

Durability

SS body; precision-ground Al bars for even distribution to four trays.

Applications

Coal, minerals, aggregates; dust-controlled operation.

Free Swelling Index & CSN

A precision electric furnace system designed to determine the Free Swelling Index CSN of coal, engineered in strict accordance with IS 1353:1993 standards, this apparatus utilizes advanced microprocessor-based control to manage the critical heating rates required for accurate coal caking characterization. 

A precision electric furnace system designed to determine the Free Swelling Index CSN of coal, engineered in strict accordance with IS 1353:1993 standards, this apparatus utilizes advanced microprocessor-based control to manage the critical heating rates required for accurate coal caking characterization. 

Features

Precision Thermal Profiling

Specifically engineered to achieve a steady base temperature of 850 deg C, with calibrated increments to reach 800 deg C in 90 seconds and 850 deg C within 150 seconds.

Advanced HMI-PLC Intelligence

Features an auto-tune temperature controller with universal input support for various thermocouples (B, R, S, K, E, J, T, N) and RTD sensors (Pt-100).

Dual Digital Timing

Equipped with an integrated electronic timer (0–999 seconds) featuring a 3.5-digit LED display for precise monitoring of the heating phases.

Sealed Thermal Architecture

Features a push-handle type crucible closing door made of durable mild steel, designed to effectively seal the refractory portion and prevent temperature leakage.

Real-Time Monitoring

Includes digital ammeters for constant display of current consumption, ensuring the integrity of the heating elements during high-temperature runs.

Industrial Build Quality

Constructed with a robust mild steel body and a high-performance control panel capable of handling diverse voltage (0-10V DC) and current (4-20 mA) inputs.

Safety & Reliability

Integrated with high-grade insulation and user-selectable input ranges to ensure compatibility across various industrial laboratory environments.

Coke Porosity

A high-precision analytical system engineered for the automated determination of coke porosity is designed in strict accordance with IS-1354 standards, this apparatus utilizes a water displacement methodology to ensure highly accurate and repeatable calculations of physical coke characteristics.

A high-precision analytical system engineered for the automated determination of coke porosity is designed in strict accordance with IS-1354 standards, this apparatus utilizes a water displacement methodology to ensure highly accurate and repeatable calculations of physical coke characteristics.

Features

Fully Automated Displacement

Features an HMI-PLC controlled mechanism that manages the movement of the coke cage and the filling of the water bath for seamless operation.

Integrated Calculation Logic

All porosity calculations are performed automatically through the HMI interface, eliminating manual data entry errors and providing immediate results.

Precision Lifting System

Equipped with a 0.5 HP motor designed for smooth transverse movement of the sample holder during the soaking and measurement phases.

High-Grade Material Build

Features a specialized SS (Stainless Steel) cage for the sample holder and a dedicated SS water bath, ensuring long-term corrosion resistance and sample purity.

Industrial Reliability

Built for 24/7 laboratory environments, the system combines rugged mechanical components with sophisticated Siemens-based digital controls.

Coke & Coal Testing Systems

Explore Our Coke & Coal Testing Solutions

Coke Reactivity Tester (CSR-CRI)

Pilot Coke Oven

Hardgrove Grindability Index

Bomb Calorimeters

Micum Drum

Autosampler

Riffle Sample Divider

Free Swelling Index & CSN

Coke Porosity

Precision Engineering for Industrial Testing & Thermal Solutions

Precision Engineering for Industrial Testing & Thermal Solutions

Precision Engineering for Industrial Testing & Thermal Solutions