50 Years Of Trust | Engineering The Next Energy ERA
50 Years Of Trust | Engineering The Next Energy ERA
Sustainable steam generation for industries committed to carbon-neutral operations and ESG excellence
ISOTEX ECOBLOC is a high-performance biomass fired steam boiler derived from German engineering excellence, developed in technical collaboration with ERK Eckrohrkessel GmbH, Berlin, Germany. Designed to deliver the most fuel-efficient and economically viable steam generation, the ECOBLOC series addresses the critical shortcomings of conventional package shell boilers — including poor fuel efficiency and limited fuel compatibility.
Unlike regular shell boilers, the ECOBLOC incorporates a revolutionary Hybrid Smoke cum Water Tube design with multi-stage reciprocating grate combustion technology, making it capable of matching — or even outperforming — conventional hybrid boilers across key performance parameters.
With over 50 years of experience and 100+ biomass-fired projects executed globally, ISOTEX offers the ECOBLOC as a complete, turnkey heating solution for industries seeking to reduce operating costs while transitioning to sustainable, biomass-based energy.
Isotex offers wood fired steam boilers across a comprehensive capacity spectrum to meet diverse industrial energy requirements. Isotex ECOBLOC wood fired steam boilers are available up to 6 TPH. Contact our engineering team for tailored solutions optimised for your specific wood fuel characteristics and steam requirements.
| Parameter | Value / Range | Unit / Notes |
|---|---|---|
|
Steam Output Capacity |
1,500 – 6,000 |
kg/hr. |
|
Design Pressure Range |
10.54 kg/cm² / 17.5 kg/cm² |
kg/cm²(g) |
|
Combustion Technology |
Multi-Stage Reciprocating Grate |
– |
|
Combustion Efficiency |
>95% |
– |
|
Turn-Down Ratio |
>1:3 |
– |
|
Dryness Fraction |
≥ 98% |
Guaranteed |
|
Boiler Series |
ECOBLOC |
Factory-assembled modular design |
Thermal Efficiency
Engineered to handle a wide spectrum of biomass and agro-waste fuels, including high-moisture and fibrous materials. ISOTEX has proven experience with more than 100 fuel types across its global installations.
Wood waste
Mustard Husk , Rice husk and paddy straw
Groundnut shells
Cotton stalks and sugarcane bagasse
Palm shells and Empty Fruit Bunches (EFB)
Coconut shells
Briquettes (biomass / agro-waste based)
Bamboo chips and forest residues
High moisture fibrous materials
Any locally available agro-waste fuel
Whatever biomass fuel is available at your facility, ISOTEX has an energy solution. Our combustion experts evaluate fuel calorific values, moisture content, and ash characteristics to configure the optimal system.
Combustion System Options |
1. Stationary Grate — Ideal for wood logs, larger wood chips, and low-density wood fuels |
2. Pinhole Grate — Optimised for fine sawdust, wood shavings, and small particle wood waste |
3. Bubbling Bed — Advanced technology for mixed fuels and variable moisture content |
4. Dumping Grate — Heavy-duty system for high-moisture, high-ash wood fuels |
The ECOBLOC combines the best of both smoke tube and water tube boiler designs into a single integrated unit, giving it performance characteristics that surpass conventional shell boilers and rival dedicated water tube boilers.
The Ram Pusher Feeder system provides continuous, controlled fuel feeding directly onto the grate with no manual intervention. The feeder stroke and frequency are modulated automatically by the combustion control system based on real-time steam demand.
A fully automated Submerged Drag Chain Conveyor with SS-lined surface handles ash removal from beneath the grate with zero manual intervention, reducing labor requirements and maintaining uninterrupted operation.
ROI Analysis: ISOTEX Evolution (4 TPH) vs. Standard Oil-Fired Boiler. Real numbers, real savings — calculated on 7,000 annual operating hours.
Operating Parameter | Value |
Steam capacity | 4,000 kg/hr. |
Annual operating hours | 7,000 hrs. |
Wood fuel consumption (wood chips) | ~6,480 tons/year |
Annual wood fuel cost | ₹3.24 Lakh |
Equivalent Conventional Wood-Fired Boiler | ₹3.45 Lakh |
Annual fuel cost savings | ₹21.61 Lakh |
Typical Payback Period | 2.5 Years |
Total Annual Savings
Typical Investment Payback
Annual Wood Fuel COst
Built to perform. Proven in the field. Real ISOTEX Biomass Fired Boiler installations showcasing proven capability across industries.
High-Capacity Biomass Boiler for Pharma Industry in Gujarat
5000 kg /hr. – 10.54 kg/cm²
Biomass Briquette
Biomass Boiler for Pharma Industry in Philippines
3000 kg /hr. – 10.54 kg/cm²
Biomass Briquette
High Capacity Steam Boiler for Chemical Industry in Gujarat
6000 kg/hr. 10.54 kg/cm²
Wood
Biomass Boiler for Food Industry in Haryana
4000 kg /hr. , 10.54 kg/cm²
Wood Logs
Watch our customers share their experience with Isotex biomass Fired Steam Boilers:
Our engineering team responds within 24 hours. Share your capacity requirements and fuel preference. We’ll engineer the right solution.
