Sample Preparation Equipment

Sundy offers a comprehensive range of sample preparation equipment for crushing, dividing, pulverizing and sieving coal, coke, minerals and other bulk materials. The product portfolio covers the complete workflow from primary crushing and wet-coal crushing to fine crushing, representative sample division, analytical pulverizing and particle-size sieving. Designed for laboratory and industrial sample preparation, the equipment helps minimize moisture loss, sample carryover and dust emissions while delivering controlled particle sizes and reliable sample representativeness. Multiple models and configurable discharge sizes are available to accommodate different feed materials, capacities and analytical requirements. All equipment complies with GB/T 474 Method for Preparation of Coal Sample.

Process StageRecommended Products
Primary CrushingSDJC Jaw Crusher
Crushing and DividingSDHD Hammer Crusher & Divider
Fine CrushingSDHC Hammer Crusher / SDRC Double Roller Crusher
Sample DivisionSDMD16 Automatic Divider / SDRD Riffle Splitter
PulverizingSDPP Pulverizer
SievingSDNS200t / SDNS300t Sieve Shaker

SDHC Hammer Crusher

SDJC Jaw Crusher

SDRC Double Roller Crusher

SDHCW Humid Coal Crusher

Crushing and division in one integrated process

  • Feed size up to 150 mm
  • Adjustable division ratio of 1:4 or 1:8
  • Moisture-preserving sealed crushing chamber
  • Maximum Power：SDHC50t : 1.5kW    SDHC150t : 4kW
  • Power Supply : AC380V±10%，50Hz±1Hz

Complete crushing with minimal sample carryover

  • Feed size up to 150 mm
  • Patented anti-block mechanism
  • Automatic safety shutdown
  • Maximum Power：SDJC100×60a:1.5kW    SDJC150×125a：4kW
  • Power Supply : AC380V±10%，50Hz±1Hz

Controlled fine crushing with low noise

  • Adjustable discharge size from 0.5 to 3 mm
  • Stable operation without floor anchoring
  • No sample splashing
  • Maximum Power：SDJC100×60a:2.2kW    SDJC150×125a：3kW
  • Power Supply : AC380V±10%，50Hz±1Hz

Efficient crushing of high-moisture coal

  • Feed size: ≤100 mm
  • Discharge size: ≤6 mm or customized ≤13 mm
  • Throughput: 2,000 kg/h
  • Crusher chamber size: 400×260 mm
  • Maximum Power：4kW
  • Power Supply : AC380V±10%，50Hz±1Hz

SDHD Hammer Crusher & Divider

Crushing and division in one integrated process

  • Feed size up to 150 mm
  • Adjustable division ratio of 1:4 or 1:8
  • Moisture-preserving sealed crushing chamber
  • Maximum Power：SDHD50t:2kW    SDHD150t：4.4kW
  • Power Supply : AC380V±10%，50Hz±1Hz

SDPP Pulverizer

  • Available with one, two or three grinding bowls
  • Feed size: ≤13 mm
  • Final particle size: ≤0.212 mm
  • Capacity: up to 3 × 100 g
  • Optional tungsten carbide bowl
  • Maximum Power : 1.5kW
  • Power Supply : AC 380V ± 10%, 50Hz ± 1Hz

SDMD16 Automatic Divider

SDRD Riffle Splitter

Automatic and precise sample division

  • Adjustable division ratio from 1:2 to 1:16
  • Throughput of 300–800 kg/h
  • Enclosed stainless-steel structure

Simple and reliable manual sample division

  • Open and enclosed versions
  • Particle sizes up to 13 mm
  • Multiple chute widths available

SDNS200t Standard Sieve Shaker

  • Standard open configuration
  • Up to 8 sieve layers
  • Noise level up to 68 dB

SDNS300t Environmental Sieve Shaker

  • Enclosed environmental configuration
  • Dust extraction connection
  • Reduced dust and operational noise
Designed for Reliable Sample Preparation

Representative Sampling
Equipment designs help minimize sample loss, residue and cross-contamination.

Controlled Particle Size
Adjustable crushing and grinding configurations support different analytical requirements.

Safe Operation
Selected models feature automatic shutdown when the cover or crushing chamber is opened.

Dust Management
Multiple products provide enclosed structures or reserved dust extraction connections.

Easy Maintenance
Accessible chambers, removable components and front-service designs simplify cleaning and maintenance.

RequirementRecommended Product
Crushing and sample division in one unitSDHD
Continuous hammer crushingSDHC
Crushing high-moisture coal without cloggingSDHCW
Primary crushing of large and hard samplesSDJC
Fine crushing with controlled particle sizeSDRC
Automatic sample divisionSDMD16
Manual sample divisionSDRD
Pulverizing to analytical sizeSDPP
Particle-size distribution testingSDNS

On-site Photos

FAQs

These sample preparation devices are applicable to laboratories in electric power, coal, chemical, metallurgical, building materials, geology and other industries, for crushing, dividing, sieving and grinding of coal or other mineral analysis samples.

All the equipment comply with GB/T 474 Method for preparation of coal sample, ensuring that the sample preparation precision and process meet the national standard specifications.

The SDHD series integrates primary crushing and two-stage division, completing crushing and dividing in one process; while the SDHC series is a dedicated crushing equipment without built-in division function, featuring zero sample mixing and excellent sample representativeness.

It is equipped with an original feed anti-blocking mechanism, which effectively eliminates jamming caused by excessive moisture in coal samples. Meanwhile, the sieve plate can be quickly disassembled by rotary extraction from the top, making cleaning and replacement easy and convenient.

Yes, the division ratio of the SDHD series is adjustable between 1:4 and 1:8, which can meet different sample retention requirements in the sample preparation process.

It adopts a staggered design for the sample retaining hopper and discarding hopper, which prevents sample mixing and cross-contamination during sampling, ensuring excellent sample representativeness and convenient operation.

The SDHC hammer crusher has an automatic power-off function. When the crushing chamber is opened for cleaning or maintenance, the equipment will automatically cut off the power supply to protect operators.

It adopts original dynamic jaw plate adjustment and protection technology. The jaw plate spacing can be adjusted and monitored in real time during operation, avoiding jaw plate impact and accurately controlling crushing particle size without additional sieving tests.

No. The equipment has a stable base structure and can operate normally when placed on a horizontal concrete ground, without additional foundation fixation, which saves installation time and cost.

It is designed with a splash-proof feeding hopper and a fully sealed crushing chamber, which effectively prevents sample splashing during feeding and crushing, greatly reduces dust pollution, and ensures safe and environmentally friendly operation.

The SDHCW humid coal crusher is the optimal choice. It is specially developed for high-moisture materials, with a cleaning device at the feed inlet to greatly reduce sticking and blocking, and the sealed chamber design minimizes moisture loss.

The SDHC series hammer crusher can adapt to coal samples with total moisture ≤15%, showing better moisture adaptability than most conventional crushing equipment.

The discharge particle size of the SDPP series pulverizer can reach ≤0.2mm, with uniform and fine powder particles, and its sieving rate fully meets the requirements of the national standard.

The discharge particle size of the SDPP series pulverizer can reach ≤0.2mm, with uniform and fine powder particles, and its sieving rate fully meets the requirements of the national standard.

Yes, it is equipped with an automatic power-off function when the cover is opened, which effectively guarantees the safety of operators during material loading, unloading and maintenance.

The division ratio of SDMD16 is adjustable from 1/2 to 1/16. It adopts a full-section cutting design for coal flow, which fully complies with the requirements of GB/T 474-2008.

The main body of the SDMD16 divider is made of stainless steel, and it is equipped with an original uniform-flow self-locking feeding hopper to ensure uniform, smooth sample feeding without residue.

Both SDNS300t and SDNS200t support up to 8 sieve layers, with an applicable sieve size of Φ200×50mm, and the sieving particle size ranges from 0.045mm to 6mm.

The SDNS300t is equipped with an exclusive noise-reducing and dust-removing environmental sealing cover with a dedicated dust removal interface, which further reduces dust and noise pollution compared with the SDNS200t.

The sealed SDRD has a fully sealed structure with less dust pollution, and it is designed with movable casters for easy movement and cleaning, providing a more comfortable working environment.

Have Questions? Contact Us Directly

Share your application details and our team will recommend a suitable configuration.

Technical Consultation

Get professional advice for your application and project.

Quotation Request

Request a detailed quotation quickly and easily.

Application Support

Find the best solution for your specific application.

Spare Parts Inquiry

Inquire about parts, availability and delivery.