Uninterrupted power stands as the single most critical dependency for modern industrial operations. In Bangladesh, where rapid industrialization drives economic expansion, grid instability, voltage fluctuations, and unexpected power outages present direct operational and financial risks. Manufacturing plants, commercial real estate, data infrastructure, and agricultural facilities require dependable auxiliary power systems to maintain continuous workflows.
RAYHANS operates as a primary industrial consultancy firm and machinery supplier in Bangladesh.
| Core Capability | Service Coverage |
| Capacity Range | 30 kVA to 3000 kVA (Standby, Prime, and Continuous) |
| Equipment Condition | Brand New (Factory Direct) & Reconditioned / Refurbished |
| Engine Technologies | Perkins (UK), Cummins (USA/UK), Ricardo (China), FG Wilson |
| Scope of Supply | Sourcing, Customs Import, Mechanical Installation, ATS Sync, Maintenance |
| Target Industries | Textiles, Ready-Made Garments (RMG), Pharmaceuticals, Real Estate, Agro-Mills |
Technical Specifications: The 30 kVA to 3000 kVA Capacity Spectrum
Selecting an industrial diesel generator requires accurate calculations of total connected loads, peak surge currents, starting power factors, and future expansion requirements. Over-provisioning leads to low-load wet stacking, while under-provisioning risks thermal overload and total blackout.
RAYHANS provides step-by-step load profiling to match your specific facility parameters across three primary industrial generator tiers:
| Power Tier | Capacity Range | Engine Brands | Primary Applications |
| Small-to-Mid Commercial | 30 kVA – 150 kVA | Ricardo, Perkins, Cummins | Banks, Commercial Outlets, Poultry Farms, Small Workshops, Residential Buildings |
| Heavy Industrial | 200 kVA – 800 kVA | Perkins, Cummins, Stamford | RMG Factories, Textile Mills, Cold Storage, Processing Plants, Commercial Towers |
| Mega Power Infrastructure | 1000 kVA – 3000 kVA | Perkins UK, Cummins Heavy Series | Power Plants, Heavy Manufacturing, Data Centers, Large Multi-Unit Industrial Parks |
1. Small to Mid-Range Power Systems (30 kVA to 150 kVA)
Small-to-medium generators serve decentralized assets, commercial real estate, and light industrial processing units.
- 30 kVA to 60 kVA Units: Configured with 4-cylinder turbocharged diesel engines, standard mechanical or electronic governors, and brushless alternators. These units deliver compact footprints, minimal noise output when housed in soundproof acoustic canopies, and high fuel economy for small commercial operations.
- 80 kVA to 150 kVA Units: Optimized for mid-tier commercial complexes, specialized agricultural setups (auto rice mills, cold storage), and mid-sized office buildings. Features include automatic digital control panels, remote monitoring capabilities, and multi-stage fuel filtration systems designed for local fuel grade variations.
2. Heavy Industrial Grade Systems (200 kVA to 800 kVA)
Industrial manufacturing facilities require heavy-duty prime power units capable of absorbing sustained loads and handling inductive motor starting surges.
- 200 kVA to 400 kVA Units: Equipped with heavy-duty engine blocks, electronic fuel injection systems, and heavy-duty cooling radiators designed for ambient temperatures up to 50°C.
- 500 kVA to 800 kVA Units: Built for heavy manufacturing facilities such as garment washing units, plastic molding factories, and steel fabrication centers. Equipped with digital auto-synchronizing control modules (such as Deep Sea or ComAp), these units can be paralleled into multi-generator setups for automatic load distribution and redundancy.
3. High-Capacity Infrastructure Systems (1000 kVA to 3000 kVA)
For large-scale industrial complexes, continuous processing plants, multi-story commercial hubs, and independent infrastructure projects, mega-capacity power generation is mandatory.
- 1000 kVA to 1500 kVA Units: Featuring V-12 or V-16 cylinder heavy engine configurations. Built with advanced turbocharged air-to-air charge cooling, electronic governing, and high-efficiency alternators designed for 24/7 continuous operation.
- 2000 kVA to 3000 kVA Power Plants: Utility-grade power modules used as primary power stations or critical backup for large facilities. These systems utilize digital power management architectures capable of interfacing with high-voltage step-up transformers, centralized building management systems (BMS), and automated fuel delivery loops.
Brand Portfolio: Engine and Alternator Technologies
RAYHANS partners with global manufacturers to supply engine and alternator combinations tailored to varying capital budgets and operational requirements.
Perkins (United Kingdom)
Perkins engines are widely used in Bangladesh’s industrial sector. Known for fuel efficiency, low combustion noise, and high load tolerance, Perkins units excel in both standby and prime power configurations.
- Key Strengths: Fast transient load acceptance, low oil consumption, wide availability of original spare parts across Bangladesh.
- Target kVA: Available across the entire spectrum, from 30 kVA up to 2250 kVA.
Cummins (USA / Global Manufacturing)
Cummins diesel engines are engineered for demanding industrial environments. Incorporating advanced electronic control modules (ECM) and high-pressure common rail (HPCR) fuel injection systems, Cummins generators deliver precise voltage and frequency regulation.
- Key Strengths: High durability, exceptional performance under extreme thermal ambient conditions, integrated digital diagnostics.
- Target kVA: Widely selected for mid-to-high applications from 100 kVA up to 3000 kVA.
Ricardo (China Joint Venture / Technology)
For cost-sensitive industrial startups, budget-conscious project profiles, and standard standby applications, Ricardo-technology engines offer an optimal performance-to-cost ratio.
- Key Strengths: Low capital investment, straightforward mechanical fuel injection, simple maintenance procedures.
- Target kVA: Popular in the 30 kVA to 500 kVA power spectrum for light industrial and commercial backup.
Comparing Equipment Options: Brand New vs. Reconditioned Generators
Deciding between brand new and reconditioned power generation equipment depends on upfront capital constraints, annual operating hours, and operational criticality. RAYHANS maintains inventory across both categories.
| Evaluation Factor | Brand New Generators | Reconditioned Generators |
| Initial Capital Expenditure (CapEx) | Higher initial investment | 30% to 50% lower initial cost |
| Operational Reliability | 100% factory certified; maximum uptime | High reliability after multi-point load banking |
| Warranty Terms | Full 1-to-2 year manufacturer warranty | Dedicated RAYHANS limited operational warranty |
| Engine Lifespan | Maximum operational engine hours | Extended residual lifecycle through rebuilt parts |
| Lead Time | Stock or direct import (30-60 days) | Immediate delivery from local warehouse stock |
| Best Suited For | 24/7 Prime power, pharmaceuticals, data centers | Standby commercial backup, temporary projects |
Brand New Generators
Imported directly from certified overseas manufacturing facilities. Delivered with original manufacturer test certificates, zero running hours, full factory warranties, and complete compliance documentation for industrial audits (such as ACCORD, ALLIANCE, or ISO standards).
Reconditioned / Refurbished Generators
Imported primarily from European or Japanese decommissioned facilities, or sourced through corporate fleet upgrades. Every reconditioned unit supplied by RAYHANS undergoes a thorough restoration protocol:
- Complete engine teardown, cylinder head inspection, and piston ring replacement.
- Alternator insulation testing (Megger testing) and automatic voltage regulator (AVR) recalibration.
- Full load bank testing at 25%, 50%, 75%, 100%, and 110% overload conditions.
- Replacement of worn wiring harnesses, filters, fluids, and installation of a modern digital control panel.
Technical Engineering: Installation, Synchronization, and Protection
Proper generator installation is critical to equipment longevity and operational safety. A poorly installed generator can suffer from exhaust backpressure, thermal overheating, ground faults, and mechanical vibration failure.1. Civil Foundation & Vibration Isolation
Generators must be anchored to a reinforced concrete foundation (Pad Foundation) separate from the main building structure. The mass of the concrete foundation should equal at least 1.5 to 2 times the dry weight of the generator set. High-deflection anti-vibration mounts (AVMs) are installed beneath the engine frame to block structural vibration transfer.
2. Sound Attenuation (Acoustic Canopies)
Industrial factories located near residential zones or urban centers must comply with environmental noise regulations. RAYHANS manufactures and supplies custom weather-proof and sound-attenuated acoustic canopies:
- Construction: Galvanized steel sheet construction lined with fire-retardant rockwool insulation and perforated sheet metal.
- Noise Reduction: Reduces operational noise levels to 65–75 dBA at a distance of 7 meters.
- Airflow Optimization: Engineered intake and discharge sound attenuators (louvers) maintain necessary cooling airflow while trapping sound waves.
3. Automatic Transfer Switches (ATS) and Paralleling Panels
To ensure zero manual intervention during grid failure, RAYHANS designs and integrates custom electrical control panels:
- Automatic Transfer Switch (ATS): Automatically detects utility mains failure, signals the generator to start, transfers the electrical load within seconds, and transfers back once utility power stabilizes.
- Auto-Synchronizing Panels: For multi-generator installations (e.g., 3 x 1000 kVA units operating together), our synchronizing panels automatically match voltage, frequency, and phase angle before closing circuit breakers. This allows dynamic load sharing—running only the necessary number of generators based on current factory demand to reduce fuel consumption.
Turnkey Industrial Consultancy: Integrating Power with Factory Setup
Unlike standalone equipment vendors, RAYHANS operates primarily as an industrial consultancy firm.
| Consultancy Service | Integration with Power Generation |
| Project Profile Preparation | Financial modeling of power generation CapEx and fuel OpEx for bank loan approvals. |
| Factory Layout & Architectural Design | Planning physical generator room dimensions, ventilation ducts, and cable trenching. |
| Government Clearances | Assistance with Department of Environment (DoE) clearance and electrical inspector approvals. |
| Machinery Sourcing & Logistics | Bundling generator procurement with primary production line machinery imports. |
Our consultancy process begins by assessing your production machinery's total power factor, dynamic motor starting requirements, and single-line electrical diagrams (SLD). This ensures your diesel generator functions as a integrated power source within your facility's infrastructure.
Preventive Maintenance, Warranties, and After-Sales Support
A diesel generator is a long-term capital investment that requires ongoing technical maintenance. RAYHANS provides structured after-sales support through dedicated mechanical and electrical service engineering teams.
Genuine Spare Parts Sourcing
We maintain an inventory of genuine spare parts at our Dhaka facilities, including original Perkins and Cummins filters, fuel injectors, water pumps, AVR modules, and electronic control units. Using original spare parts prevents engine wear and maintains fuel efficiency over years of continuous operation.
Annual Maintenance Contracts (AMC)
For corporate clients requiring operational guarantees, RAYHANS offers tailored Annual Maintenance Contracts:
- 24/7 Emergency Dispatch: Field technicians deployed within hours of an unscheduled fault call across Bangladesh.
- Scheduled Preventive Audits: Monthly physical inspections, fluid sampling, control logic checks, and load balance testing.
- Loaner Unit Availability: Provision of temporary mobile generators for critical facilities during major overhauls.
Power Your Enterprise with RAYHANS
Do not let utility power outages, voltage drops, or inadequate auxiliary power compromise your industrial production schedules or damage your valuable machinery. Partner with Bangladesh’s leading industrial consultancy and equipment supply team to design, source, install, and commission a high-performance diesel generator system tailored to your exact operational requirements.
Whether you require a compact 30 kVA standby unit for a commercial property, a 500 kVA heavy industrial engine for a factory floor, or a multi-megawatt 3000 kVA synchronized power setup, RAYHANS delivers engineered power solutions backed by full warranty coverage and 24/7 technical support.
Contact our engineering team today to request a site audit, obtain technical load calculations, or receive an instant price quotation:
- Corporate Office: Uttara, Dhaka 1230, Bangladesh
- Direct Hotline: +8801716752370
- Email Inquiry: [email protected]
- Official Website:
https://rayhans.com.bd