# Thermal Oil Heating for Hydraulic Presses - Pirobloc

## Overview
Thermal oil heating systems are used for heating hydraulic presses in various industrial processes where pressing needs to be done at high temperatures. These systems are particularly useful for forming materials such as composites, rubber, wood, and plastics.

## How It Works
- Heat produced by thermal fluid boilers is transferred to the press plate via a coil arranged inside the plate itself
- The thermal fluid circulates at high speed through the inside of the plate
- Heat is transferred efficiently with a low thermal differential between fluid inlet and outlet
- Temperature regulation is achieved through separate secondary recirculation groups in each plate and a 3-way valve

## Advantages Over Electrical Heating
- **Better Temperature Uniformity**: Provides high temperature uniformity over the entire surface, unlike electrical heating where areas near coils are typically hotter
- **Safety**: Eliminates risk of electrical earthing issues that can pose danger to users
- **Reliability**: No issues with heating elements melting, which can lead to cold areas and product defects
- **Energy Efficiency**: Lower energy consumption compared to electrical heating systems

## Implementation Options
- Boilers can be either electric, liquid, or gas-fueled
- Can be placed either on top of the press or to the side
- Systems can be customized for individual presses or centralized with a boiler room and general circuit supplying multiple presses

## Source
[Pirobloc - Thermal oil boiler for the heating of hydraulic presses](https://www.pirobloc.com/en/applications-and-sectors/pressure-heating/)