Sigma Kneader Mixer for Silicone Sealant Hot Melt Adhesive BMC Compound. High Mixing Efficiency: Twin sigma blades rotate oppositely to mix materials through shearing, squeezing, and folding without dead zones. Wide Capacity Range: Available models from 5L lab test machines to 5000L industrial mass production units. Customizable Material Contact Parts: All contact parts are SUS304/SUS316 stainless steel with GMP food grade customization available. Vacuum Deaeration Capability: Optional vacuum unit reaches -0.096 MPa to eliminate bubbles in silicone rubber and optical glue. Flexible Discharge Options: Three types available: hydraulic tilting, screw extrusion, and bottom valve discharge. Explosion-Proof Configuration: Optional explosion-proof motor and electric cabinet for flammable chemical workshops. Turnkey Production Line: Complete mixing lines with matching feeding machines, extruders, and vacuum units.