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HP-GVD: Gravimetric vibratory dosing

The high-precision vibratory dosing system for different sample types- Flexibly configurable for numerous applications

Automated HERZOG dosing module with integrated HP‑GVD for the precise dosing and handling of sample material. Automated dispensing module with multiple HP-GVD units, a SCARA robot, and a belt magazine for racks
Automated HERZOG dosing module with integrated HP‑GVD and conveyor technology for efficient laboratory workflows. Fully automated dosing module with integrated rack magazine
Dosing module with integrated HP-GVD from HERZOG for automated and precise powder dosing in laboratory systems. The enclosed system, featuring protective glazing and a touchscreen control panel, enables safe, reproducible, and controlled material feeding in automated sample preparation processes. Dosing Module with Integrated HP-GVD
Close-up view of the HERZOG HP‑GVD for precise and reproducible dispensing of sample material in laboratory applications. HP-GVD for precise and reproducible dosing
Dosing chute of the HP-GVD by HERZOG filled with sample material. The stainless-steel chute guides the granular powder precisely and in a controlled manner within the automated dosing system. Dosing chute with sample material
HP-GVD by HERZOG performing gravimetric dosing of sample material into a deepwell plate. The dosing chute precisely guides the powder into the microtiter plate positioned below within the automated system. Gravimetric dosing into a deepwell plate
Close-up view of the HP-GVD cleaning unit for reliable and low-contamination dosing of sample material. Integrated cleaning unit for contamination-free dosing
Interior view of an automated HERZOG dispensing module with a SCARA robot and integrated HP-GVD units for precise dispensing and sample handling. Robot-assisted sample handling in the automated dosing module
Laboratory technician operating a HERZOG dosing module for the automated processing of sample vials. Easy access to the HP-GVD units
Operator monitoring the process on an automated HERZOG dosing module with integrated HP-GVD. Safe process control on the automated dosing module
Laboratory technician visually inspecting a sample vessel in front of an automated HERZOG dosing module. Reliable sample processing in the automated laboratory
Laboratory technician handling sample vials at an automated HERZOG dispensing module with HP-GVD. Convenient handling of numerous sample vessels
Laboratory technician at the sample dispensing station of an automated HERZOG dosing module with integrated HP‑GVD. Output of automatically dosed samples
Automated HERZOG dosing module with integrated HP‑GVD for the precise dosing and handling of sample material.
Automated HERZOG dosing module with integrated HP‑GVD and conveyor technology for efficient laboratory workflows.
Dosing module with integrated HP-GVD from HERZOG for automated and precise powder dosing in laboratory systems. The enclosed system, featuring protective glazing and a touchscreen control panel, enables safe, reproducible, and controlled material feeding in automated sample preparation processes.
Close-up view of the HERZOG HP‑GVD for precise and reproducible dispensing of sample material in laboratory applications.
Dosing chute of the HP-GVD by HERZOG filled with sample material. The stainless-steel chute guides the granular powder precisely and in a controlled manner within the automated dosing system.
HP-GVD by HERZOG performing gravimetric dosing of sample material into a deepwell plate. The dosing chute precisely guides the powder into the microtiter plate positioned below within the automated system.
Close-up view of the HP-GVD cleaning unit for reliable and low-contamination dosing of sample material.
Interior view of an automated HERZOG dispensing module with a SCARA robot and integrated HP-GVD units for precise dispensing and sample handling.
Laboratory technician operating a HERZOG dosing module for the automated processing of sample vials.
Operator monitoring the process on an automated HERZOG dosing module with integrated HP-GVD.
Laboratory technician visually inspecting a sample vessel in front of an automated HERZOG dosing module.
Laboratory technician handling sample vials at an automated HERZOG dispensing module with HP-GVD.
Laboratory technician at the sample dispensing station of an automated HERZOG dosing module with integrated HP‑GVD.

Use

  • Gravimetric dosing of powder and granular samples and additives

 

Material

  • Different sample types and additives

 

Operation mode

  • Automatic

All advantages at a glance

Fast and precise dosing

The HP-GVD gravimetric vibratory dosing station precisely dispenses various sample materials into vials, crucibles, and other target vessels. It is suitable for a wide range of applications, including environmental analysis, the food and recycling industries, and mining. During the process, the vibration intensity is continuously adjusted based on the difference from the specified target weight and the current weight change. This ensures that the target weight is reached quickly and with high accuracy.

Optimally tailored to the material and application

The HP-GVD can be individually configured to suit the properties of the sample material and the required dosing quantity. The width, depth, and length of the dosing chute can be adapted to the specific application. Different surface finishes and coatings are also available. Retaining elements in the dosing chute ensure a uniform material flow into the receiving vessel while holding back large particles and agglomerates. In addition to forward conveying, the system supports reverse conveying. Once dosing has been completed, remaining material can be conveyed away, thereby preventing material afterflow into the receiving vessel.

Application-Specific Dry and Wet Cleaning

Depending on the sample material and application, both dry and wet cleaning options are available for the dosing chute. Dry cleaning takes place in a dedicated area separated from the dosing zone. First, any remaining material is extracted. Compressed air then dislodges particles still adhering to the chute surfaces. The specially designed cleaning system covers the entire dosing chute over its full length, while the loosened residues are continuously extracted.

For wet cleaning, the dosing chute is removed from the dosing unit and transported to a separate cleaning station. There, it is cleaned with a high-pressure water jet, thoroughly rinsed and subseqiuently dried. Wet cleaning is particularly suitable for sticky or strongly adhering residues and for applications with especially stringent requirements regarding the minimization of contamination and sample carryover.

Flexible, High-Performance Vessel Handling

The HP-GVD can be combined with various systems for the automatic transport of analysis vessels. For moderate sample volumes, gantry or multi-axis robots are used. For applications with higher throughputs, a fast SCARA robot retrieves the vessels from the respective rack, transfers them to the labeling system and dosing station, and subsequently places them in the designated output position. Vials of various volumes with screw caps or snap-on caps can be processed. Capping and decapping are performed using the HL-CU integrated into the dosing station. In addition, open containers such as crucibles can also be filled.

End-to-End Integration and Traceability

HL-DM drawer magazines or belt magazines can be used for the continuous loading and unloading of racks containing the receiving vessels. Each rack can be uniquely identified using an RFID transponder, for example. Label printers and applicators, as well as systems for direct printing on vials, provide reliable vessel identification and ensure that each receiving vessel remains unambiguously assigned to the corresponding sample.

The HP-GVD can also be integrated into larger automated laboratory systems. Sample vessels of different sizes can be supplied automatically via conveyor systems. Direct integration with upstream equipment, such as crushers, vibratory disc mills, and drying systems, is also possible. This enables the dosing process to be incorporated into a continuous and fully traceable sample preparation workflow.