Varibull Advanced Paddle Agitator
In 2025, GPS Renewables entered an exclusive partnership with Biogastechnik Süd GmbH (BGTS), Germany, to introduce their flagship Advanced Paddle Agitators in India. BGTS is a leading European biogas equipment manufacturer with decades of experience in digester mixing technology.
Why Varibull?
- 3D paddle geometry provides highly efficient, homogeneous mixing across the full digester volume at low operational rpm
- Designed for difficult substrates — Napier grass, paddy straw, high-fibre crop waste, poultry litter
- Significantly lower power consumption vs conventional propeller agitators
- Shaft, paddle and height configurations to suit any digester geometry
- Long service life with minimal maintenance requirements
- German engineering quality — proven in Europe and now available exclusively through OptiMaxx in India
Market Leader with 9 Varibull projects under execution
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Sepogant Screw Press Separator
Through our exclusive partnership with Biogastechnik, OptiMaxx distributes and services the Sepogant range of screw press separators in India. Sepogant is a proven European technology for digestate dewatering, providing consistently high solids removal enabling consistent digester performance and easier FOM process.
Key Product Features:
- Sepogant delivers 2.5× the Total Solids removal performance versus comparable segment offerings — the most critical parameter for CBG plant efficiency and economics
- Reduced civil and piping capex compared to alternative separation technologies
- Carbide-tipped screw — up to 350,000 m³ service life before tip replacement
- Reliable performance with difficult, high-fibre substrates including crop residues and municipal organic waste
- Energy-efficient — Higher solids removal performance minimises operating cost
Compact | Retrofit & new-build ready | CE-marked
| Technical Parameter | Specification |
|---|---|
| Screw Service Life | Up to 350,000 m³ |
| Tip Material | Carbide — extended wear resistance |
| Substrate Compatibility | Cattle slurry, crop residues, municipal organics |
| Drive | Low-power electric motor |
| OEM Source | Biogastechnik Süd GmbH (BGTS), Germany |
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OptiHEx Double Pipe Heat Exchangers
- OptiHEx is OptiMaxx’s engineered solution for reliable digestate heating in continuous biogas operations. Built on a looped double pipe configuration with full SS 304 construction, OptiHEx delivers stable, efficient sensible heat transfer — elevating digestate( thick slurry) temperatures without compromise.
- Designed for outdoor, unattended continuous service, each unit offers effective heat transfer length across a multi-loop configuration, with-hot water as the heating medium. Every assembly is fully welded, shop-inspected, and dispatched with complete test documentation.
- From heating liquid digestate to maintaining temperature in mixing tanks, OptiHEx ensures your digester stays within its optimal process window — day after day.
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