Hotbar Pulse Heat Reflow Power Supply
DTH Series
Delta Hotbar Pulse Heat Reflow Power Supply features fast, precise and stable temperature control through PID regulation and DC pulse output. Equipped with temperature control algorithms and large storage capacity, and supporting efficient computation and statistical data analysis, the DTH is the best fit for hotbar soldering processes.
The DTH Series offers pulse-heat reflow temperature control that enhances the processing speed of the hot bar soldering process, stabilizes quality yield, reduces solder material consumption, and provides high efficiency and energy-saving benefits.

Product Introduction
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Electronics Manufacturing: High-density multi-zone precision heating control
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Packaging Machinery: High-speed heat sealing and cutting optimization
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Food & Beverage Production: Consistent processing and product quality
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Woodworking Machinery: Stable bonding quality and high yield
- Industrial Ovens: Precise heat distribution control for higher energy efficiency
- Integrates temperature control, logic I/O, HMI, and high-power supply modules into a single unit, which is easier to use than traditional designs
- The system directly controls the output power internally, reducing time delays caused by transmission between different components
- An intuitive touch HMI and graphical user interface facilitate easy configuration of heating parameters and display of heating curves
- Utilizes a DC power supply as the heating source for the hotbar, delivering an instantaneous pulse of up to 600A DC
- Features high-speed temperature sampling at 2ms intervals and a reliable PID control algorithm
- The power output can be controlled using PWM with an output accuracy ranging from 0.1 % to 100%
- Auto-Tuning (AT) supports five heating modes, automatically completing PID configuration within 10 seconds
- Each heating stage (including preheating and two ramp-up phases) can have its own PID parameter settings
- Up to 20 heating records can be stored and retained even after a power outage, allowing convenient on-site verification and anomaly analysis
- Supports temperature records playback and viewing functions, enabling users to check heating curves at any time
- A horizontally draggable component displays both the set and actual temperature values at each time point, offering deeper insights into temperature changes
- RS-485 communication facilitates remote data collection by the host system, simplifying on-site wiring and maintenance
- Supports the Modbus ASCII/RTU communication protocol. Each operational component provides a communication register address, enabling users to customize operation screens on the device’s HMI or a PC
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