PMSM Motor 140S 85H 4250W
₹17,703.00
Voltworks V-140S-85H 4250W EV Motor
Engineered for heavy-duty L5 commercial cargo vehicles and high-capacity e-loaders, this flagship 4.25 kW motor features an extended 85mm magnet stack (85H) for extreme daily haulage.
Power & Efficiency: 4.25 kW high-power output with >93% peak energy efficiency.
Performance: Massive low-end torque to confidently tackle steep inclines under extreme heavy-duty GVW demands.
Durability: IP65/IP66 ingress protection with advanced active forced fan air cooling.
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The Voltworks V-140S-85H 4250W is an industrial-grade electric traction motor designed to handle the most severe commercial logistics and heavy cargo loads. Engineered with an enlarged 85mm stator/stack length within a robust 140mm frame, it provides ultra-high continuous torque and thermal durability, ensuring fleet vehicles maintain speed and pulling power under intense, non-stop commercial operations.
Key Features & Benefits
Commercial-Grade 4250W (4.25 kW) Power Output: Provides massive continuous power and instant peak torque, allowing commercial e-cargo vehicles to haul heavy bulk goods without speed drops or stalling on inclines.
Heavy-Duty Cargo Capability (Built for Heavy L5 Loaders): Specifically engineered for high Gross Vehicle Weight (GVW) applications, making it the premier choice for heavy e-cargo loaders, wholesale freight trikes, and municipal utility trucks.
Exceptional Hill-Climbing Performance: Effortlessly navigates steep overpasses, warehouse inclines, bridge ramps, and unpaved rural routes even when operating at maximum commercial load limits.
Class-Leading Energy Conversion (>93% Peak Efficiency): Maximizes battery range per charge by converting energy with over 93% efficiency, directly lowering total cost of ownership (TCO) for commercial logistics operators.
Advanced Forced Fan Air Cooling: Features active Forced Fan Air Cooling to handle prolonged heavy-payload operation and eliminate thermal throttling in hot summer climates.
All-Weather IP65/IP66 Ingress Protection: Fully sealed against heavy dust, road mud, rain, and direct high-pressure water jets, delivering all-season commercial reliability.
Maximum Power Density Form Factor: Utilizes a 140 mm outer frame combined with an extended 85mm magnet stack length (85H), delivering maximum output and thermal stability within standard chassis dimensions.
Specification Table
| Feature / Specification | Detail |
| Model | Voltworks V-140S-85H-4250W |
| Rated Output Power | 4250 Watts (4.25 kW) |
| Magnet / Stack Height | 85 mm (85H) |
| Peak Efficiency | > 93% |
| Cooling Mechanism | Forced Fan Air Cooling |
| Ingress Protection | IP65 / IP66 Waterproof & Dustproof |
| Target Application | Heavy-Duty L5 E-Loaders & Commercial Cargo Vehicles |
| Dimensions (OD) | Outer Diameter: 140 mm |
VoltWorks Technologies Private Limited is an Indian clean-tech mobility and hardware startup focused on designing, engineering, and manufacturing advanced electric vehicle (EV) powertrain systems. Founded by alumni from top premier institutions like the Indian Institutes of Technology (IIT), VoltWorks specializes in delivering integrated motor, controller, and energy conversion systems tailored for light commercial and passenger electric vehicles in emerging markets.
Core Focus & Expertise
Integrated Powertrain Engineering: Rather than delivering isolated parts, VoltWorks engineers cohesive powertrain ecosystems—combining high-efficiency electric motors, advanced controllers, and custom software stacks.
Field-Oriented Control (FOC) Innovation: The company's key competitive advantage lies in its proprietary Field-Oriented Control (FOC) motor controllers. These optimize torque delivery, improve energy efficiency by over 93%, and prolong battery pack lifecycles under intense daily usage.
R&D & Academic Partnerships: Incubated under the FIRST foundation at IIT Kanpur, VoltWorks actively collaborates with leading technical institutes (including IIT Madras and NIT Silchar) to bridge research-grade EV innovations into commercial production.
Mission & Market Position
VoltWorks aims to accelerate the transition to sustainable urban transportation by providing robust, affordable, and high-efficiency powertrain components built specifically for harsh local operating conditions—such as extreme heat, heavy payloads, monsoon road water splash, and stop-and-go commercial routes. Their primary target market includes original equipment manufacturers (OEMs), fleet aggregators, and retrofitters in the L3 (E-Rickshaw/E-Passenger) and L5 (Light Commercial EV) segments.
Key Highlights at a Glance
| Attribute | Details |
| Legal Entity | VoltWorks Technologies Private Limited |
| Founded By | IIT Graduates & Engineering Researchers |
| Incubation | IIT Kanpur (Foundation for Innovation & Research in Science & Technology) |
| Product Portfolio | Electric Motors, FOC Controllers, Integrated EV Skateboards & Software |
| Primary Markets | L3 E-Rickshaws, E-Cargo, Light Commercial Vehicles, 2W/3W Mobility |
1. EV Nexo Mart 1-Year Service & Support Warranty
1-Year Comprehensive Warranty Protection: Every purchase through EV Nexo Mart includes a 1-year official product warranty covering internal manufacturing defects, stator coil faults, and core hardware failures under standard operating conditions.
Dedicated Claims & Technical Assistance: Enjoy fast, hassle-free warranty processing and direct technical guidance via the EV Nexo Mart service team to keep vehicle downtime to a minimum.
Quality Assured & Genuine Replacements: Thorough pre-dispatch quality checks ensure top-tier reliability, backed by 100% genuine replacement components.
2. Warranty Exclusions & Operational Scope
Important Notice: The 1-Year Service & Support Warranty strictly covers manufacturing and material defects only.
The warranty DOES NOT cover:
Physical Damage: External casing cracks, drop impacts, road accidents, or mechanical damage due to improper installation or mishandling.
Electrical Short Circuits: Burnouts, blown windings, or failures caused by short circuits, incorrect external wiring, phase mismatches, reverse polarity, or power surges.
Water Immersion Beyond Rating: Submersion or water ingress beyond the specified IP65/IP66 limits.
Unauthorized Modifications: Self-repairs, tampering with internal components, breaking motor seals, or unapproved disassembly.
Overload Operation: Failures caused by exceeding specified payload limits or operating continuously beyond safe thermal/current parameters.
Commonly Paired by EV Builders
Usable For :
Primary Vehicle Applications
Heavy-Duty L5 Category E-Loaders: Premium high-power traction motor for heavy commercial e-cargo vehicles and three-wheelers.
Bulk Freight & Logistics Logistics: Ideal for industrial express deliveries, building material haulage, agricultural produce distribution, and heavy wholesale cargo.
Specialized Heavy Utility Mobility: Suitable for municipal waste collection trucks, heavy industrial plant shuttles, and airport cargo haulers.
Ideal Operating Conditions & Scenarios
Maximum Payload Operations: Reliably handles heavy freight loading under continuous daily commercial cycles.
Steep Slope Navigation: Maintains full climbing momentum on steep ramps and flyovers under full load.
Monsoon & Heavy Dust Environments: IP65/IP66 sealing ensures continuous operation in flooded streets, dusty construction sites, and rainy conditions.
