Order Code	Product Name
L-01-11-M08	Laboratory Double-Bucket Diaphragm Jig for Mineral Gravity Separation Testing

Laboratory Double-Bucket Diaphragm Jig for Mineral Gravity Separation Testing

Brief Introduction

The Laboratory Double-Bucket Diaphragm Jig is a professional gravity separation testing machine developed to simulate industrial jigging beneficiation principles for mineral processing research and batch sample testing. Designed with a dual-chamber structure and fixed sieve configuration, this equipment achieves density-based particle stratification through water pulsation generated by rubber diaphragm reciprocating motion.

Supporting adjustable stroke length and switchable stroke frequency, the diaphragm jig provides flexible control of jigging intensity for different particle sizes and ore properties. It processes coarse and mixed mineral samples with a maximum feed size of 12 mm for placer ore materials, producing concentrate and tailings through stable hydraulic stratification. The equipment provides repeatable test data for mineral analysis, gravity separation evaluation, and beneficiation process research in mining laboratories and metallurgical institutions.

Application Scope

The Laboratory Double-Bucket Diaphragm Jig is widely used in mineral processing laboratories, metallurgical research centers, and mine technical testing facilities for gravity separation experiments and mineral sample preparation workflows.

Mineral Sample Preparation:
The equipment performs gravity separation and impurity removal for tungsten ore, placer gold ore, tin ore, and other metallic minerals. It separates high-density valuable minerals from lower-density gangue materials, preparing representative concentrate samples for subsequent component analysis and grade testing.

Mineral Analysis and Metallurgical Testing:
The diaphragm jig supports gravity beneficiation feasibility studies by allowing technicians to evaluate stroke and frequency parameters. Its dual-chamber secondary jigging structure improves separation evaluation and provides repeatable experimental indicators for mineral processing research.

Pilot Process Verification:
Suitable for coarse and mixed particle size ore testing scenarios, the equipment supports laboratory-scale beneficiation condition evaluation and provides reference data for industrial gravity separation workflow development.

Features

Dual-Chamber Jigging Structure:
The double-bucket differential height design enables primary jigging and secondary re-separation within one continuous workflow, improving separation evaluation efficiency during laboratory testing.

Adjustable Stroke and Frequency Control:
The equipment supports dual-frequency switching of 322 and 420 strokes per minute with 11 adjustable stroke lengths ranging from 0 to 25.3 mm, allowing technicians to adjust pulsation intensity according to feed particle size and ore characteristics.

Stable Hydraulic Stratification:
The rubber diaphragm transmission structure generates consistent water pulsation, creating stable separation conditions for density-based sorting of mixed mineral samples.

Flexible Experimental Adjustment:
Adjustable tailboard height enables control of tailings overflow speed and separation concentration conditions to meet different laboratory testing requirements.

Compatible Laboratory Configuration:
Optional sieve-free operation and left-hand or right-hand discharge configurations provide flexible installation and testing options for different laboratory layouts.

Reliable Long-Term Operation:
The mechanical structure with diaphragm pulsation operation minimizes operational complexity and supports repeated laboratory testing with stable performance.

Specification

Parameter	300×450 Double-chamber Model	100×150 Single-chamber Model
Number of Chambers	2	1
Sieve Chamber Area	0.27 m²	0.015 m²
Maximum Feed Size	12 mm	3 mm
Processing Capacity	3–6 t/h	0.018–0.6 t/h
Stroke Length	0–26 mm	Custom adjustable
Stroke Frequency	322 times/min	420 times/min
Supplemental Water Consumption	2–4 t/h	/
Working Water Pressure	1–1.5 kg/cm²	1–1.5 kg/cm²
Motor Model	Y90S-4	Y80L-4
Motor Power	1.1 kW	0.55 kW
Equipment Weight	745 kg	130 kg

Other Specification for Option

The laboratory diaphragm jig supports multiple configuration options including left-hand discharge and right-hand discharge structures for different laboratory installation requirements.

Two standard models are available: the double-chamber 300×450 model for conventional batch gravity separation tests and the single-chamber 100×150 model for smaller exploratory experiments. The upper working sieve can be reserved or removed according to specific testing requirements.

Why Choose FKN PANDA

FKN PANDA Double-Bucket Diaphragm Jig provides reliable testing repeatability for mineral gravity separation research. Adjustable stroke and frequency parameters maintain stable hydraulic stratification conditions, while the dual-chamber secondary jigging structure supports consistent separation evaluation across repeated laboratory tests.

The equipment delivers dependable operational reliability through its mature eccentric shaft transmission and rubber diaphragm pulsation structure. The standardized mechanical configuration supports long-term cyclic laboratory operation and reduces maintenance requirements during frequent testing activities.

Designed for laboratory workflow efficiency, the integrated primary and secondary jigging process simplifies experimental procedures. Flexible parameter adjustment reduces testing preparation time when evaluating different ore samples and gravity separation conditions.

The diaphragm jig is compatible with mineral sample preparation, gravity separation evaluation, and metallurgical beneficiation research workflows. Test results generated from laboratory experiments can provide valuable reference for industrial jigging process development.

With durable mechanical construction and two available model configurations, FKN PANDA Double-Bucket Diaphragm Jig supports both exploratory testing and conventional batch experiments, providing a practical gravity separation solution for global mining and metallurgical laboratories.

Laboratory Diaphragm Jig – FAQ

Q1. How to select a laboratory diaphragm jig for mineral processing studies?

Selecting a laboratory diaphragm jig requires consideration of ore characteristics, particle size range, mineral density differences, and the objectives of the gravity separation test program. Important factors include feed preparation requirements, expected recovery targets, operating flexibility, and compatibility with different mineral samples. For mining laboratories, the jig should support evaluation from prepared ore samples to gravity concentration analysis and metallurgical assessment. Proper equipment selection helps engineers study mineral stratification behavior and generate reliable technical information for process development, laboratory expansion, or equipment replacement projects.

Q2. How does diaphragm pulsation frequency affect mineral separation efficiency in laboratory jig testing?

Diaphragm pulsation frequency influences water movement, particle stratification, and the separation behavior of minerals inside the jig chamber. Suitable pulsation conditions help create effective bed expansion and allow heavier particles to concentrate while lighter materials are discharged. The optimal setting depends on factors such as particle size distribution, mineral density contrast, and feed characteristics. During laboratory testing, engineers should evaluate pulsation conditions together with stroke amplitude, bed thickness, and water flow to establish repeatable operating parameters for gravity separation studies.

Q3. What factors should be considered when establishing jigging test capability in a new mineral processing laboratory?

Establishing jigging capability in a new mineral processing laboratory requires evaluation of research objectives, ore types, sample preparation procedures, and integration with existing gravity separation workflows. Key considerations include equipment configuration, operating control requirements, supporting sample handling processes, and maintenance accessibility. A properly planned jigging system can support testing of minerals such as gold, tungsten, tin, barite, manganese, and other density-based separation applications. The selected equipment should align with long-term laboratory operation needs, including process evaluation and future testing expansion.

Q4. How does feed particle size affect separation performance in laboratory diaphragm jigging operations?

Feed particle size distribution has a significant impact on mineral movement, stratification quality, and separation efficiency in diaphragm jigging. Coarse particles and fine particles may respond differently to pulsation and water flow conditions, affecting concentrate recovery and grade. Representative sample preparation and particle size analysis are important steps before testing to ensure meaningful results. By understanding feed characteristics, mineral processing engineers can adjust operating conditions and evaluate whether jigging is suitable for specific ore processing applications.

Q5. How does hutch water flow rate affect bed expansion and heavy mineral recovery in laboratory jigging?

Hutch water flow rate plays an important role in controlling bed expansion, particle suspension, and mineral stratification during jigging tests. Proper water conditions help maintain a suitable separation environment where higher-density minerals can move through the jig bed while lighter materials are carried away. Excessive or insufficient water flow may influence concentrate quality and recovery balance. Laboratory operators should optimize water flow according to ore properties, particle size distribution, and testing objectives to achieve consistent gravity separation evaluation results.

Q6. Can a laboratory diaphragm jig be used for coarse gold and heavy mineral separation studies?

A laboratory diaphragm jig can be used for evaluating gravity separation behavior of coarse gold and other heavy minerals when there is sufficient density difference between valuable minerals and gangue materials. Jigging is commonly applied in research involving alluvial gold, tungsten, tin, barite, and other mineral systems where particle stratification is important. Through controlled laboratory testing, engineers can study recovery characteristics, concentrate quality, and process suitability. The results can provide technical reference for further mineral processing evaluation and flowsheet development.

Q7. What maintenance procedures are required for long-term laboratory diaphragm jig operation?

Regular maintenance of a laboratory diaphragm jig focuses on maintaining stable pulsation performance and reliable separation conditions. Routine inspections should include checking diaphragm condition, valve operation, screen surfaces, and other components involved in water movement and particle separation. Cleaning after each test is also important to prevent sample contamination between different ore types. Proper maintenance practices help laboratories maintain consistent test conditions, reduce operational interruptions, and support continuous mineral processing research activities.

Q8. How can laboratories improve the repeatability of diaphragm jig test results?

Improving repeatability in diaphragm jig testing requires consistent control of key operating variables, including feed preparation, particle size distribution, pulsation conditions, water flow, bed thickness, and sample handling procedures. Standardized testing methods and accurate recording of operating parameters allow engineers to compare results more effectively between different experiments. Regular equipment inspection is also important because component wear or operating instability may affect separation behavior. These practices help mineral processing laboratories obtain reliable data for gravity concentration evaluation and process decision-making.

Q9. What factors should be considered when selecting diaphragm materials for laboratory jig operation?

Selection of diaphragm materials should consider the characteristics of the processed slurry, chemical conditions, abrasion level, and expected operating frequency. Mineral samples containing abrasive particles or corrosive components may require careful evaluation of material compatibility to maintain stable operation. For mining laboratories, suitable diaphragm selection helps support consistent pulsation performance during repeated gravity separation tests. Engineers should consider the relationship between sample properties, operating conditions, and maintenance requirements when configuring laboratory jig equipment for long-term use.

Q10. When should a mineral processing laboratory upgrade from manual to variable-frequency diaphragm jig control?

A mineral processing laboratory may consider upgrading from manual to variable-frequency diaphragm jig control when testing requirements become more diverse and precise operating adjustment is needed. Variable control can provide greater flexibility for studying different ore types, particle sizes, and separation conditions. This upgrade may benefit laboratories involved in expanded mineral processing research, comparative testing, and process optimization programs. The decision should be based on testing frequency, research objectives, workflow requirements, and the need for improved operational control during gravity separation studies.

{ "@context": "https://schema.org", "@graph": [ { "@type": "Organization", "@id": "https://www.fknmed.com/mining-lab-supplies/#organization", "name": "FKN GROUP LIMITED", "contactPoint": { "@type": "ContactPoint", "telephone": "+86 13770648803", "email": "liu-liming@fknmed.com", "areaServed": "International mining market", "availableLanguage": "English" } }, { "@type": "Product", "@id": "https://www.fknmed.com/mineral-processing-beneficiation-equipment/laboratory-diaphragm-jig.html#product", "name": "Laboratory Double-Bucket Diaphragm Jig for Mineral Gravity Separation Testing", "description": "Laboratory Double-Bucket Diaphragm Jig is designed for mineral gravity separation experiments with adjustable stroke and frequency control, supporting density-based sorting, sample preparation, and beneficiation process evaluation in mining laboratories.", "image": "https://www.fknmed.com/static/upload/image/20260726/1785037664417476.jpg", "brand": { "@type": "Brand", "name": "FKN PANDA" }, "manufacturer": { "@id": "https://www.fknmed.com/mining-lab-supplies/#organization" }, "offers": { "@type": "Offer", "url": "https://www.fknmed.com/mineral-processing-beneficiation-equipment/laboratory-diaphragm-jig.html", "availability": "https://schema.org/InStock" } } ] }