Semi-automatic XRF / FTIR presses

The semi-automatic hydraulic XRF Pellet Presses Atlas Power and Autotouch are perfect for fast and reproductible sample preparation for X-ray fluorescence (XRF) and Fourier-transform infrared (FTIR) spectroscopies.The pressure force is variable up to max. 400 kN (40 tons), depending on model.

The Autotouch model offers the possibility to store up to 6 programs (touch screen operation) controlling ramp, dwell and release rates. The Atlas Autotouch 40Ton (40T) Hydraulic Presses are automatic and programmable hydraulic presses which have been designed for a wide variety of pressing applications within the laboratory or heavy industrial environments, to apply a load at a minimum of 4 tons up to a maximum of 40 tons.

These presses are specifically suited to the preparation of solid sample discs, particularly for pellets at 40mm diameter using Specac Atlas evacuable pellet die assemblies, from the higher tonnage loads offered by the pressing system that may be needed to apply across larger surface areas of a sample for compaction.

The Atlas Autotouch 40T presses enable the controlled application and release of an applied load via push button or programmable timed functionality and can accommodate large samples up to 240mm wide, 220mm deep and 155mm tall.

The operations to set a specific load to apply or create a program for a load application sequence for its duration of hold are carried out via a touch sensitive display screen.There are two physical buttons on the front panel to push for actual operation of the press – a start button to apply a load and a stop button to release the load.

The sample is held in the pressing area prior to compression by use of a lead screw and top anvil pressing face mechanism. Incorporated into this mechanism are compression disc springs that allow for a slow release of any load to the sample pressing procedure. In the compression process the disc springs will be initially compressed before full resistance is met to stop the travel of the piston. When any stored load is released the disc springs will relax to their non-compressed state and hence provide for a slow release of a full load.

An important part of the press is the safety guard mechanism. For any operation of the press the safety guard must be in its closed (down) position. Accidental raising of the guard, even if the press is under load, will automatically abort the pressing operation and reduce the load from the system to render it safe.

If your pellets require binding agents for stabilisation, please see our XRF Binders.

Certified safety (CE mark)

The press works by automatic motorised pumping of a hydraulic fluid (oil) to raise a piston and compress a sample held in the pressing area.

The press consists of a motor, pump and oil reservoir assembly from where the oil is transferred across to the base of the pressing area and forced under the piston assembly.

As the oil pressure builds up in the press system the load being applied to the sample will be registered on the electronic display.

The application of a load will continue until the required load is reached and then held until released by the operator.

Alternatively, the load can be applied in a series of load stages via a specific program and automatically released from a programmed time hold function and controlled release rate. The power unit is extremely quiet and operates below 62 dB(A) making the presses ideal for use in all environments.

• Compact benchtop Press
• Pressure load from 8 tons to 40 tons
• Autotouch, touch screen programmable model