5L Dual Arm Sigma Mixer Suitable for Silicone Rubber Hot Melt Adhesive Butyl Rubber Mixer

The 5L Dual Arm Sigma Kneading Machine is a laboratory grade equipment designed specifically for mixing small batches of high viscosity materials. It is widely used in the research and pilot production of chemical, food adhesive, pharmaceutical, silicone rubber, hot melt adhesive and other fields. It is centered around two ∑ - shaped (Z-shaped) stirring blades and adopts a tangential differential design. Through shearing, compression, folding, and mixing in a closed mixing tank, it achieves efficient and uniform mixing of highly viscous and elastic materials.

The typical mixing time of a 5L dual arm Sigma kneading machine is usually between 10 and 30 minutes, depending on the material properties, formulation complexity, and process requirements.

This type of equipment is mainly used for the uniform mixing of high viscosity and high elasticity materials, such as silicone rubber, hot melt adhesive, food adhesive base, sealant, etc. The mixing process not only relies on the shear action of the stirring blade, but also needs to go through compression, folding, and flipping, so it takes longer than ordinary mixers. According to actual application scenarios and literature references:

For general powder or medium viscosity materials, the mixing time is about 10 minutes, which is suitable for systems with good fluidity and easy dispersion.

In polymer materials or chemical production, due to the strong viscoelasticity of the materials and high requirements for mixing uniformity, the kneading time may be extended to half an hour or even several hours to ensure the full fusion of components and complete exhaust.

Under laboratory conditions, if precise control of process parameters and small-scale validation are required, operators often judge the endpoint based on visual observation or torque changes, and the actual operating time is often adjusted within the range of 15-25 minutes.

It is worth noting that the "mixing time" generally refers to the main mixing stage from the completion of all raw material input to the opening of the unloading device, excluding the feeding and discharging time. For small devices like 5L, although the thermal conductivity efficiency is high and the mixing speed is slightly fast, it is still necessary to set the optimal cycle based on specific processes to avoid material degradation caused by insufficient mixing or excessive shearing.

If you are optimizing the mixing process of a specific material, it is recommended to conduct a trial run based on 15 minutes and then adjust the time according to the uniformity results.