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Engineered for extreme Indian duty cycles: high ambient heat resilience, optimized torque density, and plug-and-play conversion compatibility.
India is on the cusp of an aggressive transportation overhaul driven by the government's ambitious zero-emission roadmaps, stringent scrappage policies (Voluntary Vehicle Fleet Modernization Program), and soaring operating costs of fossil-fueled internal combustion engine (ICE) commercial vehicles. Within this evolving industrial reality, the in-wheel electric motor car conversion kit in India has emerged as a disruptive technological and commercial solution. Rather than retiring millions of roadworthy ICE chassis, logistics trucks, municipal sanitation vehicles, and passenger shuttles, retrofitting them with in-wheel (hub) permanent magnet synchronous motor (PMSM) systems provides an accelerated, cost-effective pathway to electrification.
Unlike conventional central motor drivetrains that retain mechanical transmissions, prop shafts, and differentials, in-wheel motor conversion kits package the electric traction motor, regenerative braking system, and precise gear reduction directly inside the wheel rim. This architecture frees up tremendous chassis volume, allowing fleet operators across Delhi-NCR, Mumbai, Bengaluru, Pune, and Chennai to install larger modular battery packs without sacrificing payload capacity.
The commercial viability of in-wheel conversion kits in India spans several critical use cases. Last-mile urban delivery fleets (such as conversions for Tata Ace, Mahindra Bolero Maxi Truck, and Ashok Leyland Dost platforms) require continuous stop-and-go driving through congested metropolitan corridors. Here, in-wheel PMSM motors deliver instant peak torque at zero RPM, drastically cutting energy consumption while capturing up to 30% more energy through regenerative braking in congested Indian traffic.
Direct wheel integration eliminates differentials, drive shafts, and clutches, slashing mechanical failure points and periodic fleet maintenance overhead by up to 40%.
Vacating the central undercarriage allows flat-pack LFP/NMC battery installations, achieving low center of gravity and superior vehicle handling dynamics.
PUMBAA's advanced liquid-cooling and thermal management withstand continuous 45°C+ summer tarmac heat without torque de-rating.
Deploying in-wheel conversion kits across Indian topography demands rigorous engineering. The system must conquer extreme challenges: severe unsprung mass vibrations caused by monsoon-damaged road surfaces, dust ingress during dry seasons, and waterlogging during urban monsoon downpours. PUMBAA's in-wheel and electric axle systems feature IP67/IP68 hermetic sealing, heavy-duty stator potting, and ruggedized dual-row angular contact bearing assemblies capable of withstanding severe radial shocks.
Furthermore, our Vehicle Control Units (VCU) such as the PEVC007 and Motor Controller Units (MCU) like the PMC32A / PMC10A integrate sophisticated torque vectoring and electronic differential algorithms (EDM). This ensures that during sharp cornering on slippery or uneven roads, each wheel motor dynamically calculates instantaneous slip, guaranteeing driver safety and tire longevity.
Creating an integrated solution for electric vehicle drive platforms that meet various usage needs across commercial logistics, public transit, and industrial sectors.
Explore PUMBAA's high-efficiency permanent magnet synchronous motors, integrated e-axles, power distribution units, and chassis systems.
Technical features of Electric Vehicle Drive PMSM Motor: 1. The reduction in mechanical transmission losses provides maximum efficiency for heavy electric trucks and conversions.
Benefits of the Electric Vehicle Drive PMSM Motor: Permanent magnet traction drive systems with high power density, superior thermal resistance, and smooth torque delivery.
Technical features of the Electric Vehicle Drive PMSM Motor: 1, Compact structure and simple chassis integration for Indian commercial van retrofits and light trucks.
Characteristics of the Electric Commercial Vehicle Motor Controller Unit (MCU): Automotive grade IGBT/SiC power modules with fast dynamic response.
Characteristics of the Electric Commercial Vehicle Motor Controller Unit (MCU): Highly cooperative multi-drive control algorithms with robust CAN communication.
Technical features of the Electric Vehicle Motor Controller Unit (MCU): 1. Uses SVPWM modulation for low harmonic distortion and quiet operation.
Features of Electric Vehicle OBC+DCDC+PDU 3-in-1 CDU Unit: Integrated on-board charger, DC-DC step-down converter, and intelligent power distribution.
PPS500 4-in-1 Controller series four in one controller is designed for new energy buses, logistics vehicles, and urban conversion projects.
Performance Advantage: Cost advantage, high level of integration, and lightweighting for commercial bus & truck fleet operators in India.
Performance advantages of Pumbaa PMEA45000Z Integrated e-axle: Optimized layout space, supreme gradeability, and heavy cargo capability.
Pumbaa PMEA40000Z Central E-axle: High efficiency, maximum energy regeneration for Swachh Bharat electric waste management vehicles.
1. Pumbaa 6-phase motor 2. CATL 282kWh 3. Front axle 5.8T 4. Independent Suspension 5. Rear axle matching for high-speed highway coaches.
1. PUMBAA three-phase permanent magnet synchronous motor 2. CATL 422kWh 3. Front axle 7.3T 4. Heavy-duty mining and construction chassis.
1. Pumbaa 6-phase motor 2. CATL 282kWh 3. Front axle 10T 4. Steering drive axle 5. Rear axle 13T for airport and urban shuttle fleets.
Pumbaa E-Drive Technology Co., Ltd.
PUMBAA is a leading provider of high-efficiency Electric vehicles drive system. We design and manufacture permanent magnet synchronous motors(PMSM), electric vehicle motor controllers(MCU), controllers for electric vehicles(VCU), and electric vehicle power supply systems(DCDC, DCAC, OBC, PDU), tailored for a wide array of commercial electric vehicles. Creating an integrated solution for electric vehicle drive platforms that meet various usage needs.
Customizable Solutions
Cost-effective Engineering
High-performance Motors
Global Technical Support
Electrification Technology Platform: Covers all commercial vehicle scenarios, enables the electrification of commercial vehicles, and its five key technological breakthroughs have been tested and validated on over 100 vehicle models.
Reliability and Durability: Enhanced Materials and Upgraded Thermal Management
High-efficiency Performance: High Power Density and Precise Output
Highly integrated multiple product functions
Effectively reducing component count and volume
The team has inherent whole-vehicle development expertise
Ensuring components and systems operate at peak efficiency
The energy conversion efficiency exceeds the industry level by 10%.
The control logic is more efficient and precise.
Reduced components and shared hardware architecture
Lightweighting for cost reduction and lower energy consumption
What global commercial OEMs, conversion engineers, and Tier-1 integrators say about collaborating with PUMBAA.
"Doing business with PUMBAA is seamless. When we encounter technical challenges—whether during the integration of their Central E-Axle into our logistics vehicles or fine-tuning the Motor Controller Unit (MCU) for optimal performance—their engineering team provides precise, clear solutions faster than we anticipate. I consider them a true partner; visiting their R&D center feels like collaborating with an extension of our own team because their approach is so professional and distinct from typical catalog suppliers. They don't just sell components like PMSM motors or power supply CDUs; they provide a holistic electric drive platform solution and stand behind it. For every problem we face, from thermal management strategies to whole-vehicle matching for our electric bus chassis, we get actionable answers that make complex projects manageable. To us, that depth of technical support and reliable partnership is invaluable, and it's the core reason we value this collaboration so highly."
"PUMBAA has redefined our model of collaboration with suppliers. They not only focus on quality, cost, and delivery but have also brought us the core 'value-creating capability.' This is reflected in three aspects: first, a renewed perspective on cost—they pursue the optimal total lifecycle cost, and their solutions enhance the energy efficiency of our overall systems and our product competitiveness; second, building 'transparent resilience'—they proactively share supply chain information, transforming their risk mitigation capacity into certainty for our projects; third, serving as a 'technology bridge'—they rapidly translate cutting-edge technologies into robust, adoptable solutions for us, accelerating our technological iteration. Therefore, PUMBAA has evolved from a component supplier into a 'value co-creation partner.' What they provide is not just high-quality parts but, more importantly, the key capabilities to reduce systemic risk, enhance product value, and accelerate technological evolution."
"We used to source motors globally, but those suppliers rarely allowed any design modifications. Working with PUMBAA has completely changed that. I can request various custom design changes based on project needs—whether for their Permanent Magnet Synchronous Motors (PMSM), Motor Controller Units (MCU), or Integrated E-Axles—they always accurately understand our drawings and deliver on time. The product precision is extremely high, fully meeting our specifications. Unlike other suppliers who only offer standard catalog items, PUMBAA truly provides a 'one-stop' electric drive platform solution. They customized the 66/123kW Central E-Axle for our electric logistics vehicles and adapted the high-voltage power supply system (CDU) for our electric bus project, executing every detail perfectly. I have personally visited their factory and was deeply impressed by their production technology, thermal management solutions, and professional vehicle integration capabilities."
"In the past, sourcing motors globally presented a significant challenge regarding customization—what we often received were standard products, not solutions truly optimized for our projects. This situation completely changed when we started working with PUMBAA. Whether we needed adjustments to mounting interfaces, optimization of electromagnetic performance, or adaptations for specific operating environments, they consistently demonstrated a precise understanding of our technical drawings and requirements, providing feasible improvement solutions. What's even more remarkable is that every design change was implemented within the agreed timeframe. From prototyping to mass production, they maintained exceptionally high manufacturing consistency throughout the process, and the conformity between the physical products and the drawings was impressive. From winding and assembly to inspection, every step was rigorously controlled."
Our partner in China and global markets is a consortium of leading OEMs, including Sany, Zoomlion, Jiangling, Chery, China CNR, Ruichi, Chang'an, JAC, Dongfeng, and Jinlong. We are actively expanding this proven engineering track record into India's rapidly growing EV retrofit and manufacturing sectors.
Standard-setting components, controllers, and e-axles available for automotive conversion, retrofitters, and OEMs.