HTP: Semi-automatic pellet press

Perfect laboratory press

The HTP is the ideal laboratory press for the semi-automatic production of press tablets for X-ray fluorescence analysis. Due to the variety of pressing tools and the configurability of the machine parameters, the HTP is perfectly suitable for a wide range of materials and applications. 

In combination with a Herzog laboratory mill, the HTP fulfills all the requirements demanded in quality and process control laboratories for reproducible, efficient, and process-reliable sample preparation of powder samples.

Easy handling

The HTP laboratory press is characterized by its simple and ergonomic operation. The area for filling the press tool with the sample material is located at a comfortable working height and is easily accessible. This allows fatigue-free working at the machine over a longer period of time. 

The smooth-running press traverse can be swiveled to the side with a single hand movement, exposing the working area to the operator. This makes it much easier to fill, remove and clean the pressing tool. All pressing tools from Herzog are characterized by superior material quality and high-precision manufacturing. This guarantees not only perfect quality of the pressed pellets, but also trouble-free operation and problem-free handling.

The machine is operated via the integrated, touch-sensitive 7-inch color display. The size of the display and the clear menu navigation allow easy and intuitive access to all machine functions. The three buttons on the front of the machine are programmable, so that frequently used sample preparation programs can be started directly at the touch of a button.
 

Highest quality standards

All processes in the HTP are controlled by a programmable logic controller. Together with the high-performance hydraulic unit, this ensures extremely precise control of all phases of the pressing process. As a result, a high degree of precision and accuracy is achieved in the sample preparation and analysis of the pressed pellets.

All relevant parameters of the pelletizing process such as pressure force, pressing speed and pressure holding time can be set on the HTP's HMI panel and saved as a program. Thus, force build-up and release can be parameterized in such a way that even complicated sample materials can be processed without any problems.

Improved service and safety features

The HTP has improved maintenance and service features. The front-mounted hatch facilitates access to the inside of the machine so that regular cleaning and inspection tasks are performed quickly and easily. In addition, service and repair work can be carried out more efficiently thanks to the easy access to the hydraulic unit.

The safety features of the HTP have also been further improved compared to the previous model. Pelletizing can only be started when the safety cover is closed. These rules out interference of the operator with the pressing tool. During filling of the pressing tool, the safety cover can be folded to the side so that the operator's field of vision is not impaired.

Options for all applications

The HTP 40 achieves pressing forces of up to 400 kN, the HTP 60 even up to 600 kN. This means that even pressed pellets with larger diameters can be produced without any problems.

The HTP can be equipped with a cleaning device for steel rings, which is attached to the side of the machine. This allows effortless and rapid removal of the sample material from the ring after analysis is complete. The cleaning device is available in manual and pneumatic versions.

For laboratories with high sample throughput, an optional hydraulic unit cooling system is available. This allows the HTP to operate for substantially longer periods without overheating the hydraulic oil.

Various press tools enable the HTP to be used flexibly for different applications, materials and analyzing instruments. Optional press tools are available for free pressing as well as for pressing into 40 mm, 50 mm rings and aluminum cups.