4.5T Rear e-Axle with Power Take-Off (PTO) for China Suppliers and Factory Specialized Vehicles
Pumbaa E-Axle Product Introduction
1. PUMBAA Rear E-Axle for Light Commercial Vehicles integrates "motor, propeller shaft, and drive axle" into a single unit, suitable for new energy logistics light trucks and special-purpose vehicles with a Gross Vehicle Weight (GVW) ranging from 4.5t to 7.5t.
2. Optional rear axle configurations:
- Brake type: Hydraulic brake drum brakes, pneumatic brake drum brakes ("S"-cam, wedge-type), or pneumatic brake disc brakes.
- Reducer type: 1-speed reduction or 2-speed reduction.
- Wheel end structure: Maintenance-free hub units.
3. Key features of the electric drive rear axle product:
The rear axle assembly features a compact structure, small footprint, and low weight. It effectively frees up chassis space, facilitating overall vehicle chassis layout.
The rear axle housing is integrally stamped and welded from high-strength steel plates, delivering strong load-bearing performance and excellent reliability.
The highly integrated transmission system (motor directly drives the rear axle, eliminating the propeller shaft) boosts transmission efficiency, reduces power loss, and achieves a comprehensive efficiency over 5% higher than traditional direct-drive systems.
With a system weight reduction of over 50kg, 100% torque reversal, and regenerative energy recovery, it significantly extends the vehicle’s range. Additionally, it minimizes friction between brake pads and drums, prolongs component service life, and lowers long-term usage costs.
PMQX210012001A-4.5/160
Pumbaa 4.5T e-drive rear axle with PTO parameters
Model: PMQX210012001A-4.5/160
Rear Axle Product Structural-Functional Diagram
Pumbaa 4.5T rear e-axle with PTO Configuration Parameters
| Rear Axle Product Configuration Parameters | |||
| Rated Load(kg) | 4500 | Speed Ratio | 16.55 |
| Maximum Load(kg) | 7500 | Maximum Torque(N.m) | 6600 |
| Maximum Speed(Km/h) | ≥100 | Maximum Gradeability | 25% |
| Sustainable Speed(Km/h) | 80 | Axle housing structural form | Stamping and Welding |
| Rim Mounting Surface Distance A(mm) | 1570±2 | Axle housing structural form(mm) | 106×106×6 |
| Spring Distance B ( m m ) | 950±1 | Brake specification | Air Brake 310×100 (Wedge Type) |
| Wheel Bolt Pitch Circle C (mm) | ø222.25 | Air Chamber Specification | 16'/16′ |
| Wheel Bolt | 6-M20×1.5 | Single Braking Torque | 0.65Mpa,7260N.m |
| Rim Lip Diameter | ø163.8 | Hub Mounting Surface Distance | 1496-1612 |
| Compatible Tire | 7.0×R16 | Compatible Rim | 5.5J×16 |
| Wheel Alignment Method | Lip Positioning | ||
| Optional Configuration | Maintenance-Free Hub Unit, Air Brake Drum-Type "S" Cam Brake, Disc Brake | ||
| Power Take-Off (PTO) Parameters | |||
| Power Take-Off Speed Ratio | 1.531 | Output Power(Kw) | 15～20 |
| Output Torque(N.m) | 128 | Output Speed (rpm) | 1500～1800 |
| Motor Parameters | |||
| Motor Type | PMSM | Protection Rating | IP67 |
| Motor Peak Power (Kw) | 150 | Motor Rated Voltage(VDC)(V) | 540 |
| Motor Rated Power(Kw) | 75 | Operating Voltage Range(VDC)(V) | 350～750 |
| Motor Peak Torque(N.m) | 400 | Motor Maximum Speed (rpm) | 12000 |
| Motor Rated Torque(N.m) | 180 | Motor Rated Speed(rpm) | 3979 |
| Insulation Class | H | Duty | S9 |
Pumbaa 3.5t Rear E-Axle Inspection and Testing
Application for Pumbaa 4.5T rear e-axle with PTO
The 4.5-ton electrically driven axle product with power take-off (PTO) is applicable to special purpose vehicles with specialized superstructures equipped with hydraulic systems, such as those for garbage compression, garbage collection and transportation, high-altitude operation, and road obstacle clearance.
Vehicle Parameters By Pumbaa 4.5T rear e-axle with PTO
| Curb Weight (kg) | 3680 |
| Fully Loaded/Overloaded Gross Mass | 4500/7500 |
| Tire Model | 7.50R16LT |
| Maximum Gradeability | 25% |
| Maximum Parking Gradeability | 20% |
| Maximum Speed(km/h) | 100 |
| Economic Speed(km/h) | 60～80 |
| 0~50km/h Acceleration Time (S) | ≤15 |
| 30~0km/h Braking Distance(m) | ≤10(Unladen)、≤12(Full Load) |
Technical Advantages of e-axle: Why They Are Becoming the "Standard Configuration" for Industrial Vehicles?
By integrating traditional dispersed components—"motor + driveshaft + wheel-end reducer"—into a single module, e-axle directly power vehicle wheels. This innovation delivers three core advantages for industrial applications:
1. High Efficiency and Energy Savings, Reducing Long-Term Costs
e-axle eliminate redundant parts like driveshafts, boosting transmission efficiency from 60%-70% in traditional fuel/hydraulic systems to 85%-92%. Combined with precise motor control technology, energy consumption is cut by 25%-40%. Take warehouse forklifts as an example: models with e-axle consume 3 kWh less electricity per day than traditional hydraulic-driven counterparts, saving over 2,000 yuan annually in electricity costs per unit (based on an industrial electricity price of 1 yuan/kWh).
2. Space Optimization, Adapting to Compact Scenarios
The integrated design reduces the volume of e-axle by 30%-40% and shortens their axial length by 20%, freeing up more space for cargo or operations in industrial vehicles. For instance, narrow-aisle forklifts (AGVs) equipped with e-axle can have their body width compressed to under 1 meter, fitting into 5-meter narrow aisles in warehouses and increasing storage capacity utilization by 15%.
3. Intelligent Control, Empowering Industry 4.0
Built-in sensors and motor controllers enable real-time monitoring of torque, speed, temperature, and other data, seamlessly integrating with AGV dispatching systems and industrial IoT (IIoT) platforms. Enterprises can remotely diagnose faults, optimize power output, and reduce downtime by over 30% via cloud-based systems, driving the adoption of "predictive maintenance."
II. Industrial Applications: Full-Chain Penetration from Logistics to Heavy-Duty Sectors
e-axle now achieve "full coverage from light to heavy-duty" in industrial vehicles, with three key scenarios validating their irreplaceability:
Logistics Handling Equipment
As the core power source for AGVs, electric forklifts, and stackers, e-axle support high-frequency start-stop operations and precise speed control (with an accuracy of ±0.5 km/h), meeting intensive demands like "100,000 items picked per day" in e-commerce warehouses. Data from a leading logistics company shows that AGV fleets with e-axle saw a 45% annual reduction in failure rates and a 20% improvement in order fulfillment efficiency.
Ports and Heavy Machinery
In ports (e.g., gantry cranes) and mining transport vehicles, e-axle handle heavy-load starts and uphill climbs with high torque output (peak torque up to 5,000 N·m), while their low noise (＜75 dB) complies with new port environmental regulations. For example, after Shanghai Yangshan Port Phase IV automated terminal introduced electric drive axle gantry cranes, energy consumption per container dropped by 35%, and noise pollution complaints fell by 60%.
Intra-Factory Transportation
In automotive assembly lines and electronics factory material distribution, electric drive axle-powered tractors and transfer carts have become standard equipment for "zero-carbon factories" due to zero tailpipe emissions and lower maintenance costs (annual maintenance expenses reduced by 50% compared to fuel-powered vehicles).
III. Market Outlook: A High-Growth Track Driven by Policy and Demand
According to QYResearch, the global industrial electric drive axle market reached 4.8 billion in 2023, with projections to exceed 12 billion by 2030, representing a compound annual growth rate (CAGR) of 14.2%. Growth is fueled by:
Policy Drivers: The EU’s "Fit for 55" package and China’s "dual carbon" goals mandate over 50% electrification of industrial vehicles by 2030, directly benefiting e-axle as a core component.
Technological Iteration: New technologies like SiC motor controllers and oil-cooling heat dissipation are improving efficiency by an additional 5%-8% and reducing costs by 15%.
Scenario Expansion: Beyond traditional forklifts and AGVs, e-axle are rapidly penetrating niche areas such as aerial work platforms and airport ground support vehicles.
