Industrial Dabonn heavy oil fired steam boiler in automated factory
verified ASME S • CE • ISO9001 Certified Heavy Thermal Engineering

Oil-Fired Boiler Manufacturer & Supplier

Customized High-Efficiency Oil Steam & Hot Water Boilers (0.5 - 50 Ton/h). ASME, CE & ISO Certified. Engineered for 98%+ Thermal Efficiency with Ultra-Low NOx Emissions (<30mg/Nm³).

40+ Years Manufacturing Precision
120+ Export Countries Worldwide
15,000+ Active Commercial Installations
24/7 Global Field Engineering Support
Engineered Thermal Superiority

Industrial Oil-Fired Steam & Thermal Solutions for Global Manufacturing

Zhengzhou Dabonn Energy Co., Ltd. leads heavy boiler manufacturing with automated thermal solutions designed to minimize carbon overhead and maximize enthalpy recovery. Every oil-fired boiler utilizes a classic 3-pass wet-back structural geometry and a fully corrugated furnace liner. This architectural design completely eliminates tube-sheet overheating, absorbing high-temperature thermal expansion while dramatically enhancing radiant heat transmission.

Equipped with European precision burners (Riello, Baltur, Oilon, Weishaupt) and automated Siemens PLC programmable microprocessors, Dabonn thermal generators achieve continuous oxygen regulation and variable-frequency fan adjustment. Operating smoothly on standard Light Diesel, Low-Grade Heavy Fuel Oil (HFO / Bunker C), Waste Lube Oil, or Biodiesel, our integrated economizers capture latent flue gas energy, reducing operating fuel expenses by up to 25% annually.

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Key Technical Envelope

Verified Spec
Steam Rated Output: 1.0 - 35.0 t/h (0.7 - 25 MW)
Design Working Pressure: 0.7 - 3.82 MPa (7 - 38.2 bar)
Thermal System Efficiency: ≥ 98.2% (with Condensing Unit)
NOx Exhaust Concentration: < 30 mg/Nm³ (Low NOx Tier)
Adaptable Fuel Media: Diesel, Heavy Oil, Waste Oil, Dual-Fuel
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Need custom pressure ratings or higher steam superheat temperatures? Our ASME S-Stamp certified engineers calculate bespoke pressure vessel dimensions on demand.

Enterprise Machinery Portfolio

Featured Industrial Oil Boilers

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Eff: 98.4%
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How Much Does 1 Ton Oil Fired Steam Boiler Cost and How to Choose the Right Model?

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How Much Does a 5 Ton Oil Fired Steam Boiler Cost and How to Choose the Right Model?

The price of a 5 ton oil fired steam boiler is usually between $48,000 and $58,0...

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How Much Does a 10 Ton Oil Fired Steam Boiler Cost for a Textile Factory?

A 10 ton oil fired steam boiler for a textile factory typically costs USD 100,00...

Capacity:10t/h
Pressure:1.25MPa
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calculate Request Specs & Price
Structural Reliability Standards

Engineered for Reliability: Why Global Enterprises Choose Dabonn

Thermal boilers are the unyielding heart of modern chemical, food, and manufacturing plants. Dabonn integrates aerospace-level quality checks into heavy industrial manufacturing.

radiology

100% X-Ray Flaw Detection

Every welded circumferential and longitudinal seam undergoes automated ultrasonic and radiographic non-destructive examination, exceeding ASME Section I inspection requirements.

Zero-Leakage Assurance
eco

Ultra-Low NOx <30mg/Nm³

Flue Gas Recirculation (FGR) combined with advanced staged-air European burners limits thermal NOx creation, compliant with world-class clean air mandates and municipal standards.

Eco Compliance Standard
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Intelligent IoT PLC Control

Siemens multi-loop touch controllers with cloud telemetry. Continuous monitoring of pressure, water level, thermal load, and automated blowdown with phone alert integration.

Smart Automation
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Turnkey Global EPC Delivery

From heat balance calculations and structural piping drawings to on-site commissioning and boiler operator licensing assistance across five continents.

End-to-End Execution
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Need a thermal calculation for your facility?

Our senior thermodynamic engineers assist with fuel sizing and plant room layout gratis.

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Sizing & Volumetric Selection

Select Boiler by Capacity

Match precise steam tonnage demands to our certified standardized and heavy industrial model ranges.

0.5 - 2 Ton / Hour

Small Capacity Units

Ideal for compact utility spaces with intermittent steam needs. Fast steam startup within 15 minutes.

  • check_circle Craft Breweries & Distilleries
  • check_circle Commercial Laundries
  • check_circle Modular Food Sterilization
Inquire 0.5-2T Series
4 - 10 Ton / Hour

Medium Production

The core workhorse for continuous line manufacturing. High thermal inertia and resilient pressure tolerance.

  • check_circle Textile Dyeing & Finishing
  • check_circle Fine Chemical Reactors
  • check_circle Pharmaceutical Autoclaves
Inquire 4-10T Series
15 - 35 Ton / Hour

Large Industrial

Designed for high continuous output, continuous 24/7 run cycles with automatic continuous blowdown economizers.

  • check_circle Pulp & Paper Mills
  • check_circle Regional District Heating
  • check_circle Feed & Grain Processing
Inquire 15-35T Series
40 - 50+ Ton / Hour

Utility Heavy Duty

Heavy D-type water tube structures engineered with superheater coils for power cogeneration and petrochemical complexes.

  • check_circle Petrochemical Refineries
  • check_circle Combined Heat & Power
  • check_circle Heavy Synthesis Complexes
Inquire 40-50T Series
Multi-Combustion Adaptability

Flexible Fuel Adaptability & Burner Compatibility

Adapt easily to shifting local fuel supplies and energy price spikes. Dabonn thermal furnaces integrate customized fuel atomizers and multi-fuel switching mechanisms.

Burner Partners: Riello Baltur Oilon Weishaupt
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Light Diesel Oil (#2)

Clean-burning standard diesel ensuring instantaneous ignition, minimal soot generation, and optimal longevity of convective heating surfaces.

Viscosity Range: 3.0 - 7.5 cSt @ 20°C
Standard Configuration
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Heavy Fuel Oil (HFO)

Bunker C and heavy residual oils. Complete with steam/electric oil preheaters, insulated fuel manifolds, and high-pressure steam atomizing nozzles.

Viscosity Range: Up to 380 cSt @ 50°C
Preheater Pre-Installed
recycling

Waste Oil & Biodiesel

Filtered recycled engine oil, pyrolysis oils, and vegetable biodiesels. Fitted with anti-clog filters and abrasion-resistant burner heads.

Filtration Spec: Duplex 60-Mesh Automatic
High ROI Solution
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Dual-Fuel (Oil & Gas)

Instant one-button switching between Natural Gas/LPG and Diesel/Heavy Oil without requiring system shutdowns or hardware refits.

Switching Mode: Seamless Electric Switch
Maximum Energy Security
Turnkey EPC Execution

Complete Turnkey Boiler Engineering & Custom EPC Solutions

From initial heat balance simulation to global on-site assembly, Dabonn provides end-to-end technical responsibility for your boiler room project.

01

CAD / 3D Layout & Thermal Sizing

Detailed heat balance calculations, pipeline stress analysis, boiler room P&ID generation, and spatial 3D BIM clash detection.

02

Skid Fabrication & Pre-Assembly

Modular piping, burner mounting, feed pumps, and Siemens control racks fully pre-fabricated and factory test-fired prior to container shipment.

03

On-Site Erection & Commissioning

Dabonn senior field service engineers deploy to your plant for hydro-testing, burner tuning, flue gas analysis, and formal regulatory handover.

04

Operator Training & Spare Parts

Rigorous operator safety certification, predictive maintenance schedules, and guaranteed fast dispatch of consumable gaskets, valves, and burner nozzles.

Global Reach

Trusted by 1,200+ Plants Across 120+ Countries

From textile conglomerates in South Asia to paper factories in Latin America and food giants in the Middle East, Dabonn thermal boilers power mission-critical infrastructure.

See Global Cases public
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GLOBAL INSTALLATION TELEMETRY

Worldwide Boiler Deployment Hubs

Dabonn maintains dedicated technical service centers and partner spare part depots across Southeast Asia, Central Asia, Middle East, Africa, and Latin America.

SOUTHEAST ASIA 4,800+ Units

Vietnam, Indonesia, Thailand, Malaysia

CENTRAL ASIA 2,150+ Units

Uzbekistan, Kazakhstan, Kyrgyzstan

MIDDLE EAST & AFRICA 3,600+ Units

Saudi Arabia, UAE, Egypt, Nigeria, Kenya

Recent Project Handouts

Australia • Farm 2026

How Did Dabonn Supply a 1.4 MW Oil Hot Water Boiler for an HFO Fuel Farm?

This case shows how an industrial oil hot water boiler can be customized for a fuel farm application where reliable heat...

Yemen • Industrial Steam Application 2026

How Did a Yemen Customer Choose a 3 Ton Gas Steam Boiler from Dabonn?

The Yemen project started with a 3 ton gas steam boiler valued at approximately USD 50,000 FOB. After using the equipmen...

Saudi • Food Industry 2026

How Did Dabonn Supply 3 × 6 Ton Oil-Fired Steam Boilers for a Saudi Industrial Project?

The Saudi project demonstrates how Dabonn supplied a multi-boiler steam system for an industrial oil and petrochemical a...

Real Results

Dabonn Boiler News & Industry News

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Dabonn Boiler Announces New Industrial Boiler Solutions for Global Customers in 2026

Dabonn Boiler continues to expand its industrial boiler solutions in 2026, providing customized stea […]

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Dabonn Energy participates in international industrial exhibitions to communicate with global custom […]

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Engineering Knowledge Hub

Boiler Engineering Insights & Guides

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Engineering FAQ

Frequently Asked Questions About Industrial Oil Boilers

Clear, authoritative answers regarding procurement, regulatory compliance, fuel mechanics, and life-cycle guarantees.

What is the expected operating lifespan of a Dabonn oil-fired steam boiler? expand_more
Dabonn boilers are engineered for an operational lifespan exceeding 20 to 25+ years under standard preventative water treatment and chemical descaling regimes. Our pressure vessels feature thick boiler-grade steel plates (Q245R / SA516 Gr.70), submerged arc welding, and complete corrugated furnaces that minimize thermal stress cracking.
What are the typical lead times from order placement to international port delivery? expand_more
Standard WNS series oil-fired steam boilers (1.0 to 10 Ton/h) typically dispatch from our Zhengzhou plant within 20 to 30 working days. Large water-tube SZS units (15 to 50 Ton/h) require approximately 45 to 60 days. Urgent containerized skid boilers can frequently be dispatched within 15 days depending on burner inventory.
Can Dabonn boilers accommodate heavy fuel oil (HFO) with high sulfur content? expand_more
Yes. When burning heavy residual oil or high-sulfur Bunker fuel, we supply specialized corrosion-resistant ND steel (09CrCuSb) heat exchanger surfaces and steam/electric fuel preheating stations. Flue gas discharge temperatures are strictly governed above the acid dew point to prevent low-temperature sulfur dew corrosion.
Do you provide on-site overseas engineers for installation supervision? expand_more
Yes. Dabonn provides full field engineering dispatch. Our certified installation supervisors arrive on site to manage boiler placement, burner commissioning, electrical wiring verification, hydraulic hydrostatic testing, and formal local inspector qualification.
What international quality certifications are provided with the boiler documentation? expand_more
Each boiler is delivered with a complete engineering quality dossier, including: ASME S/U Stamp manufacturer data report, CE-PED certificate of conformity, ISO9001 quality certificates, 100% X-ray radiographic inspection reports, raw steel mill test certificates (MTR), and third-party inspection sign-offs (SGS / BV / Lloyd's available upon request).
What is the standard warranty and spare parts support policy? expand_more
We provide a standard 24-month warranty on the boiler pressure body and 12 months on ancillary equipment (pumps, burner components, valves). A complimentary 2-year consumable spare parts package (seals, ignition electrodes, gauge glasses) is included with each international export shipment.
verified Fast Turnaround Engineering Hub

Request An Instant Factory Direct Quotation & Proposal

Submit your steam or hot water project parameters below. Dabonn boiler design engineers will calculate your required heating surface, fuel burn rates, and provide an itemized CIF/FOB equipment quotation within 2 hours.

timer Our 2-Hour Commitment

Every inquiry receives a comprehensive PDF proposal including equipment bill-of-materials, boiler room layout CAD drawing, and fuel operating cost comparisons.

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Direct WhatsApp (24/7): +86 138 3822 5665
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Direct Sales Desk: [email protected]
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Zhengzhou Dabonn Energy Co., Ltd. High-tech Industrial Development Zone, Zhengzhou, China