Nozzle heaters for plastic machines: 1. Warranty: 2 years 2. High watt density 3. ISO9001, CE, RoHS 4. Manufacturer price Spring heaters (nozzle heater or hot runner heater) have advantages such as fast heating and cooling, even heating, high temperature resistance, anti-oxidation, good extensibility, good insulation and long usage life. Spring heaters are widely used in hot-runner molds, blow ...