PVC waterstop production equipment is a special production line specially designed for flexible polyvinyl chloride (PVC) and modified materials (adding plasticizers, elastomer modifiers, anti-aging agents), the core adopts the integrated process of "raw material pretreatment - melt extrusion - special-shaped mold forming - cooling shaping - composite reinforcement - traction cutting". Its core principle is: in response to the needs of PVC waterstop "special-shaped section sealing, high elasticity anti-deformation, weather resistance and leakage prevention", the waterstop is protruded/grooved structure formed through precise formula and special-shaped mold, and the internal stress is eliminated after segmented cooling, and can be reinforced with polyester cloth/steel edge, and finally formed into a waterstop product that meets engineering waterproof standards, with an automation degree of more than 90%, meeting the sealing needs of multiple scenarios such as construction, water conservancy, and tunnels.

Core Advantages and Applicable Scenarios

of the device 1. Core   Advantages

     ◦ Common advantages:

▪     Efficient integration: integrated production, 50% higher efficiency than traditional segmented processes, and ≥ 98% scrap recovery rate;

▪     Precise and controllable: cross-sectional size error ≤±0.3mm, width error ±2mm, in line with GB/T 18173.2-2014 standard;

▪     Flexible adaptation: Quick mold change (within 40 minutes), supports mid-buried type, back-mounted type, and steel-edged waterstop switching, and is compatible with PE elastomer formulations.

▪     Sealing leak-proof: special-shaped section design (raised height 8-15mm) + high elasticity formula (tensile strength ≥12MPa, breaking elongation ≥300%), water expansion rate ≤5%, effectively blocking water seepage channels;

▪     Weather resistance and durability: add anti-UV agents and anti-mildew agents, acid and alkali corrosion resistance, stable operation in -20°C-70°C environment, underwater service life ≥ 30 years, suitable for complex geological projects such as water diversion in central Yunnan;

▪     Environmental compliance: calcium and zinc stabilizers are used, no formaldehyde, no TVOC, and the heavy metal content meets the limit requirements of GB/T 18173.2-2014;

▪     Low energy consumption design: The energy consumption per unit product is ≤75kW·h / ton, which is 30% more energy-saving than the rubber waterstop vulcanization equipment (with the blessing of frequency conversion control).

1.   Typical application scenarios

Construction engineering field: basement construction joints, roof expansion joints, floor slab deformation joints

high elastic seal, anti-leakage, convenient construction

Hydraulic engineering field: reservoir dams, diversion tunnels, sewage treatment plants

water soaking resistance, anti-aging, and adaptation to geological deformation 

Traffic engineering field: bridge expansion joints, highway tunnels, high-speed rail platforms

tensile deformation, wear resistance, compressive resistance, long-term stability    

Special engineering fields: landfills, chemical pools, nuclear power facilities

corrosion resistance, no pollution, excellent sealing performance