Crushing & Grinding Machine
Combined Crushing and Division Sample Preparation Unit Automated Coal and Mineral Milling Reduction System
Item Number : KT-LH
Price varies based on specs and customizations
- Processing Capacity
- Up to 2500 kg/h
- Max Feed Particle Size
- ≤ 150 mm
- Total Sample Division Ratio
- 1/2 to 1/64 (Adjustable)
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Product Overview
This high-performance combined crushing and division sample preparation system is an integrated solution engineered for rapid, representative preparation of bulk coal, minerals, ores, and geological samples. Designed to replace labor-intensive manual sampling methods, this unit combines multi-stage size reduction with automated sample division in a single continuous process. By automating feeding, crushing, mixing, and proportional sample reduction, the system dramatically increases laboratory sample preparation throughput while preserving sample moisture integrity and preventing cross-contamination.
Built to rigorous industrial testing standards, including GB/T19494 and GB474 regulations for mechanical coal sampling and preparation, the system delivers predictable, repeatable particle sizing for critical downstream analytical procedures. Primary use cases span coal handling plants, commercial testing laboratories, thermal power stations, metallurgical processing facilities, geology exploration institutes, and carbon materials manufacturing plants.
Constructed with heavy-gauge materials, high-manganese steel impactors, and enclosed dust-proof structures, the equipment withstands continuous heavy-duty operation in challenging industrial environments. Whether configured with manual vibratory feeders or automated belt conveying systems with integrated reject discharge, this machine provides analytical laboratories with exceptional operational reliability, superior safety standards, and uncompromising sample accuracy.
Key Features
- Integrated Dual-Stage Size Reduction: Combines primary impact crushing (hammer mill or jaw crusher) with secondary precision double-roller milling to efficiently reduce raw feeds up to 150 mm down to uniform sub-3 mm sample powders in a single continuous pass.
- Precision Proportional Division: Features adjustable slotted sample splitters providing flexible primary (1/2 to 1/8) and total reduction ratios (down to 1/64), ensuring reliable, representative sampling without moisture loss.
- High-Manganese Steel Impactors: Equipped with full-width high-manganese alloy hammers and hardened wear-resistant jaw plates engineered to crush hard, abrasive minerals while delivering extended service life.
- Dust-Free Sealed Chamber Design: Engineered with a fully enclosed operating enclosure and sealed transfer chutes that suppress dust escaping during high-speed impact, ensuring compliance with clean laboratory standards.
- Flexible Feeding & Reject Conveying: Available in multiple automation tiers—from manual vibratory feed to automated belt feeding and automated reject conveyor output—to suit varying facility layouts and throughput requirements.
- Convenient Inspection & Maintenance Access: Designed with multiple quick-release access doors and inspection ports for rapid interior cleanouts, blade replacements, and routine preventive maintenance.
- Comprehensive Operational Safety: Features fully shielded drive belts, dynamic balance flywheels, and emergency power cut-offs compliant with industrial machinery safety directives.
Applications
| Application | Description | Key Benefit |
|---|---|---|
| Coal Quality & Calorific Analysis | Continuous reduction and division of run-of-mine coal samples for proximate analysis and calorific value determination. | Complies with GB/T19494 sampling standards without moisture loss. |
| Metallurgical Ore Processing | Dual-stage crushing of hard iron ore, sinter, and slag samples prior to X-ray fluorescence (XRF) and wet chemistry testing. | Rapid size reduction from 150 mm feed to sub-3 mm analytical fractions. |
| Geological Exploration | Processing of core samples, rock fragments, and bulk mineral deposits across remote or central assay laboratories. | High-throughput processing up to 2500 kg/h with uniform particle sizing. |
| Power Generation Fuel Lab | Automated sampling of incoming thermal coal shipments at power station receiving stations. | Eliminates manual labor errors and ensures impartial, representative samples. |
| Carbon & Graphite Production | Crushing and precise splitting of petroleum coke, anode material, and synthetic graphite feedstocks. | Sealed housing prevents fine carbon dust escape and workplace contamination. |
| Chemical & Mineral Manufacturing | Size reduction and sample preparation for industrial minerals, raw lime, clinker, and bulk chemicals. | Adjustable division ratios ensure exact sample volumes required for lab testing. |
Technical Specifications
| Parameter | KT-LH-1800A | KT-LH-1800B | KT-LH-1800C | KT-LH-JR800 | KT-LH-2500C |
|---|---|---|---|---|---|
| System Type | Hammer + Double Roller (Manual Feed) | Hammer + Double Roller (Belt Feed) | Hammer + Double Roller (Belt Feed & Reject Conveyor) | Jaw + Double Roller Integrated Unit | Heavy-Duty Hammer + Double Roller |
| Max Feed Size | ≤ 150 mm | ≤ 150 mm | ≤ 150 mm | < 100 mm | < 150 mm |
| Primary Discharge Size | 13–6 mm | 13–6 mm | 13–6 mm (Adjustable) | N/A (Jaw Stage) | N/A |
| Secondary Discharge Size | 3–1 mm | 3–1 mm | 3–1 mm (Adjustable) | 0.1–3 mm (Adjustable) | < 3 mm |
| Moisture Tolerance | ≤ 15% | ≤ 15% | ≤ 15% | Standard Dry/Brittle | Standard Dry/Brittle |
| Primary Division Ratio | 1/2 – 1/8 (Adjustable) | 1/2 – 1/8 (Adjustable) | 1/2 – 1/8 (Adjustable) | N/A | Slotted Divider (Adjustable) |
| Secondary Division Ratio | 1:2 | 1:2 | 1:2 | N/A | 1/4 Division Splitter |
| Total Division Ratio | 1/2 – 1/32 (Adjustable) | 1/2 – 1/32 (Adjustable) | 1/2 – 1/32 (Adjustable) | Continuous Output | 1/64 |
| Production Capacity | 1200–1800 kg/h | 1200–1800 kg/h | 1000–2000 kg/h | 200–800 kg/h (0.2–0.8 T/h) | 2500 kg/h |
| Primary Rotor / Jaw Spec | High-Manganese Hammer | High-Manganese Hammer | High-Manganese Hammer | Dual Wear-Resistant Jaw Plates | Hammer Rotor Ø400 × 600 mm |
| Secondary Roller Spec | Double Roller | Double Roller | Double Roller | Roller Crusher Chamber | Double Roller Ø200 × 300 mm |
| Belt Speed | N/A | Standard Belt | Standard Belt | N/A | 0.3–0.5 m/s |
| Main Shaft / Drive Speed | Standard | Standard | Standard | 480 r/min | Heavy-Duty Drive |
| Operating Voltage | 380V 50Hz | 380V 50Hz | 380V 50Hz | 380V 50Hz | 380V 50Hz |
| Total Power Consumption | 7.87 kW | 8.25 kW | 9.0 kW | 7.5 kW | 18.0 kW |
| Feeding & Waste Handling | Manual Vibration Feed | Automatic Belt Feed | Automatic Belt Feed & Reject Conveyor | Manual Top Feed | Automatic Belt Feed & Reject Conveyor |
| Compliant Standards | GB/T19494, GB474 | GB/T19494, GB474 | GB/T19494, GB474 | Standard Industry Lab Standards | GB474-1996, GB/T25651-2010 |
Why Choose This Product
- Rigorous Standard Compliance: Fully aligned with national and international sample preparation standards (GB/T19494, GB474, GB/T25651), ensuring audit-ready analytical sample integrity.
- Robust Heavy-Duty Construction: Engineered with thick-walled structural steel, dynamic balancing flywheels, and premium alloy impact components designed for continuous industrial operation under severe crushing loads.
- Zero Moisture Loss Sampling: Rapid, enclosed continuous crushing and reduction prevent volatile loss and sample moisture evaporation during processing.
- Flexible System Customization: Available in multiple drive powers, feed configurations, jaw or hammer primary reduction stages, and discharge automation levels tailored to your facility footprint.
- Comprehensive Engineering Support: Backed by KINTEK's technical expertise, complete spare parts inventory, and dedicated application support for seamless laboratory integration.
Contact our technical sales team today to request a quotation or consult with our engineers regarding custom sample preparation system configurations for your facility.
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