Direct OEM-certified wholesale motors, slip ring induction prime movers, and specialized crane drives engineered for Sri Lanka's power grid standard (415V/3.3kV/6kV/11kV 50Hz).
Sri Lanka’s industrial sector is undergoing a rapid modernization driven by major infrastructure developments around the Colombo Port City, Hambantota International Port, expanded tea processing facilities, and large-scale cement manufacturing units. However, procurement managers and plant directors across Western, Central, and Southern provinces face severe operational headwinds. Aging electromechanical assets—originally sourced from legacy European or British manufacturers—suffer from high thermal stress caused by high ambient humidity and grid frequency fluctuations.
When heavy rotating equipment such as a 3.3kV wound rotor motor on a cement ball mill or an 11kV prime mover in a power generation facility fails, plant operators face a critical strategic choice: Order an expensive, long-lead-time replacement from Western Europe, or partner with an advanced Chinese overhaul factory for rapid precision re-engineering.
Sri Lanka’s coastal environment exhibits humidity levels exceeding 90% and aggressive salt fog. Our wholesale overhaul process utilizes Class H Vacuum Pressure Impregnation (VPI) with anti-fungal epoxy resins engineered for tropicalized duty cycles.
Eliminate costly civil foundation modifications. We replicate exact shaft extensions, terminal box positions, bolt center distances, and center shaft heights of legacy brands like Parsons Peebles, WEG, ABB, and Siemens.
The Ceylon Electricity Board (CEB) grid can experience voltage sags and frequency shifts. Our overhauled rotors and heavy-duty slip ring assemblies feature reinforced copper bars and oversized collector rings to prevent flashover.
By blending over 128 years of British rotating machinery heritage from Parsons Peebles with China's high-capacity manufacturing supply chain, our wholesale factory delivers uncompromised technical rigor at competitive price points.
Every motor sent for overhaul or custom replacement undergoes rigorous core loss testing, dynamic balancing, and back-to-back full-load electrical testing in compliance with ISO 9001 and IEC 60034 standards.
Our overhaul services extend beyond standard induction motors. We specialize in complete electrical and mechanical restoration of heavy industrial generators, salient pole synchronous machines, and rotary frequency converters.
Whether operating in hydro-power facilities in Sri Lanka’s Hill Country or thermal auxiliary plants, our re-engineered rotor coils and upgraded brushgear ensure uninterrupted continuous operation under severe industrial duty cycles.
Tailored electromechanical overhaul and wholesale supply engineering mapped directly to Sri Lanka’s key operational environments.
Ship-to-shore (STS) cranes and rubber-tyred gantry (RTG) cranes operate continuously under high saline marine air. Our YZR Crane Slip Ring Motors (380V/440V/660V) feature IP55/IP56 cast-iron enclosures and Class H insulation specifically designed to withstand extreme torque switching and thermal cycling in port operations.
Central Province tea plantations in Nuwara Eliya, Kandy, and Ratnapura rely on continuous-duty tea withered blowers, CTC rollers, and fluid-bed dryers. We supply energy-efficient WEG-Style 15kW–75kW Induction Motors with anti-dust sealing and low-noise fan covers to prevent tea fiber clogging.
Grinding mills in cement production require extremely high starting torque under full load conditions. Our wholesale YR & YE2 3.3kV/6kV High Torque Slip Ring Motors allow external liquid resistance starters (LRS) connection, reducing starting current spikes on local sub-stations.
Sri Lanka’s massive water diversion schemes require heavy-duty vertical hollow-shaft and horizontal asynchronous motors (110kW to 1250kW). Our overhaul program replaces vulnerable bearings with SKF/NSK insulated bearings to completely eliminate circulating shaft currents.
Power plant draft fans, boiler feed pumps, and cooling tower circulating pumps in Kerawalapitiya and Lakvijaya require Ex ec / Ex p explosion-proof and non-sparking certified motors, engineered for absolute reliability under peak load conditions.
Heavy mechanical shocks in steel rolling and rubber compounding demand rugged mechanical frames. Our re-engineered cast-steel end shields and reinforced shaft splines prevent fatigue failure during sudden load surges.
A detailed engineering breakdown showing how China Wholesale Overhaul Solutions optimize performance for Sri Lankan operating conditions.
| Engineering Parameter | Standard Import Motor (Off-the-Shelf) | China Wholesale Overhaul & Re-Engineered Solution | Sri Lanka Field Benefit |
|---|---|---|---|
| Insulation System | Class F (Standard Dip & Bake) | Class H VPI Epoxy Resin (Tropicalized) | Resists 95% RH moisture, fungus, and thermal degradation. |
| Stator Coil Wire | Standard Grade 1 Copper Wire | Grade 2 Double-Dacron Glass Coated Copper Wire | Eliminates inter-turn short circuits caused by voltage spikes. |
| Bearing Protection | Standard Steel Ball Bearings | Insulated Bearings (Hybrid Ceramic / Insulated Coat) | Prevents electrical fluting and bearing pit erosion on VFD drives. |
| Mechanical Frame | Standard Modular Cast Iron | Heavy-Duty Cast Iron / Welded Steel (Drop-in Match) | Exact bolt-hole match; zero civil foundation modifications required. |
| Starting Current Ratio | 6.5x – 7.5x Full Load Current | Controlled 1.5x – 2.5x (Using Wound Rotor LRS) | Prevents voltage drops on rural Ceylon Electricity Board lines. |
| Vibration Tolerance | ISO 10816 Class A (2.3 mm/s) | Precision Grade G1.0 (< 1.0 mm/s) | Extends mechanical lifespan of coupled gearboxes and pumps. |
Navigating international procurement requires smooth logistics. Our wholesale export division provides full support for Sri Lankan industrial buyers, ensuring hassle-free clearance through Colombo Customs under HS Code 8501 (Electric Motors & Generators).
We supply complete documentation including Certificate of Origin (Form E / China-Sri Lanka FTA compliance), ISO Test Reports, Factory Acceptance Inspection Certificates, and Warranty Guarantee Letters.
Expert guidance on electrical equipment overhaul, custom drop-in design, voltage standards, and shipping lead times.
We manufacture and overhaul rotating equipment compatible with all standard Sri Lankan power levels: Low Voltage (400V / 415V / 440V, 3-Phase, 50Hz) and Medium/High Voltage (3.3kV, 6.6kV, and 11kV, 50Hz). All motors are designed to operate safely within a ±10% voltage fluctuation allowance.
Before production, our engineering team requests dimensional drawings, shaft keyway specifications, bolt center distances (dimensions A, B, C, H), and foot-to-shaft heights of your legacy motor (e.g., legacy Parsons Peebles, Siemens, WEG, or GEC units). We produce 3D CAD models to confirm zero-gap alignment before fabrication starts.
For applications requiring massive starting torque without excessive grid current draw—such as cement ball mills, tea rollers, or port cranes—a Wound Rotor (Slip Ring) Motor allows insertion of external rotor resistance. Overhauling an existing wound rotor machine or buying a re-engineered unit can save up to 50% of the cost of a completely new variable speed system while preserving mechanical durability.
All motor windings undergo double Vacuum Pressure Impregnation (VPI) with Class H solventless epoxy varnish, supplemented by an anti-fungal tropical topcoat. External surfaces receive a multi-layer epoxy resin paint finish rated for C4/C5 corrosive marine environments, preventing salt-fog oxidation.
Sea freight shipping from Shanghai or Ningbo Port to Colombo International Container Terminal (CICT) typically takes 8 to 12 days. Air freight options are available for emergency motor spare parts (such as carbon brushes, slip ring assemblies, or stator coils) within 3 to 5 transit days.
Yes. We provide remote live video FAT streaming or invite client technical teams to our workshop. We perform full no-load test runs, winding resistance measurement, insulation resistance (IR) and Polarization Index (PI) tests, high-pot test, and dynamic vibration spectrum analysis.
Contact our team of senior electrical design engineers and overhaul specialists today. Get direct factory pricing, detailed engineering drawings, and immediate technical support tailored to your plant requirements.
