WDR Series Electric Steam Boiler

he thermal efficiency of industrial electric boiler reaches as high as 99%, and there is no NOx released to the air. The electric boiler with steam capacity lower than 1ton is designed as vertical structure, and higher than 1 ton is designed as horizontal type to offer sufficient steam output. The electrical control cabinet is separate from boiler body, which will not affect the boiler’s working life because of the aging of the electrical elements. The electric steam boiler adopts high quality electrical heated tube, work for about 20000 hours. It uses stainless steel electric heating tubes has high compression strength, the working life is 5~10 times longer than the common tubes.

The industrial electric steam boiler is ideal for heating, textile plant, rice mill, garment factory, utility or power plant, hospital, hotel, food & beverage, diaries, schools, chemical industry and more applications.

Rated Capacity:



<2.5 Mpa





Boilers Structure

WDR Series Electric Steam Boiler

1. The boiler adopts stainless stell electric heating tubes, the thermal efficiency is high. No harmful gas emission, environmental friendly.

2. All the electrical components ahve CE and CCC cerfication, to gaurantee the safety operation and long working life. Each group electrical heating elements are connected by clustered flanges, has simple structure and high mechanical strength. The boiler uses high quality cartridge heater, could working for more than 20000 hours.

3. The boiler is equipped with reliable auxiliaries and multiple safety protection device, such as pressure controller, presure transmitter, water level alarm, and safety valves, etc.

4. The boiler adopts full automatic interlock protection program, has the protection function of water shortage, over pressure, over temperature, flame out, electric leakage, and phrase-lacking or over-loading of motor, etc.

Auxiliary equipment

Cartidge Heaters

Cartidge Heaters

The boiler adopts high quality cartidge heaters with CE and CCC certificates, could used for more than 20000 hours.

Control System

Control System

We adopt Siemens PLC and Schneider electrical components. can realize automatic interlock control to ensure boiler safe operate.



The boiler uses aluminium silicate board for heat preservation, has high thermal shielding efficiency and low heat loss.



We adopts the stainless vertical pump with low noise, stainless impeller and pump body.

Steam header

Steam header

Standard configuration: one inlet, three outlets, equipped with pressure gauge and thermometer. It can be designed according to customers' requirement.

Water softener

Water softener

It is fully automatic and free debugging. We adopts PE material for salt tank body, it has hard texture and it is easy to move, anti-shock, and no leakage.


Zhongding Boiler pay more attention to the boiler quality from raw material to producing process.

boiler quality
we choose domestic well-known manufacturer who can provide component report of raw material, to ensure the raw material is qualified. After the completion of raw material procurement, there are specialized technicians in our factory to make sampling chemical composition analysis and physical performance analysis, and we can also provide raw materials inspection report.
We adopt numerical control cutting, which has the advantage of high precision, neat cutting surface, nice appearance and high material utilization.
Boiler manufacturing
Boiler production
We adopt submerged arc fully automatic welding. When each welding process is done, the 100% X-ray inspection will be arranged for every welding seam, which can prevent the defective parts from flowing into the next process.


Model Rated Evaporation Capacity(t/h) Rated Working Pressure(MPa) Rated steam Temperature(C) Thermal
Overall Dimension (mm) Reference Weight(kg)
LDR0.1-0.4-D 0.1 0.4 151 99 1100×850×2600 615
LDR0.2-0.4-D 0.2 0.4 151 99 1200×960×2500 657
LDR0.3-0.4-D 0.3 0.4 151 99 1350×1120×2360 671
LDR0.4-0.4-D 0.4 0.4 151 99 1350×1120×2650 678
LDR0.5-0.4/0.7-D 0.5 0.4/0.7 151/170 99 1700×1200×2720 689
LDR0.7-0.4/0.7-D 0.7 0.4/0.7 151/170 99 2650×1850×1330 825
WDR1-0.7-D 1 0.7 170 99 2620×1360×1630 1179
WDR1.5-0.7-D 1.5 0.7 170 99 2840×1560×1830 1312
WDR2-0.7-D 2 0.7 170 99 3640×1760×2030 1450
Note: Parameter is for reference only, if any changes should follow actual drawings.


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