Slow Speed Weigh in Motion (SSWIM) System
Accurate Vehicle Weighing Without Stopping
A Slow Speed Weigh in Motion (SSWIM) system is a vehicle weighing solution that measures weight while vehicles move slowly over a platform, typically at 5–15 km/h. Unlike traditional systems, vehicles do not need to stop completely. As a result, traffic flow improves and operational efficiency increases.
What is Slow Speed Weigh-in-Motion (SSWIM)?
Slow Speed Weigh-in-Motion (SSWIM) is a modern weighing system that captures axle and gross vehicle weight at low speeds. Typically, vehicles pass over sensors at controlled speeds without stopping.
As a result, delays are reduced significantly. In addition, efficiency improves across operations. Moreover, manual intervention is minimized. Therefore, the system is widely used in logistics, industries, and transport hubs.
How Does SSWIM Work?
“Once the sensors detect a vehicle, signals are transmitted immediately to the controller for processing. This allows the system to calculate total vehicle weight in real time. The processed data is then displayed and stored for future monitoring, ensuring you get accurate results without ever interrupting the flow of traffic.”
Key Components of SSWIM
Sensors and Load Cells
Sensors detect axle loads as vehicles pass over the platform. As a result, consistent and accurate measurements are achieved.
Junction Box
A junction box collects signals from sensors and forwards them to the controller. In addition, it ensures stable transmission.
Controller Unit
The controller processes signals and calculates vehicle weight efficiently. Moreover, it maintains system reliability.
Display Unit
Real-time weight data is shown on the display unit. Therefore, operators can monitor results instantly.
Software System
Data is stored and analyzed using dedicated software. Furthermore, integration with other systems becomes easier.
Key Benefits & Features
Improved Traffic Flow: Vehicles move continuously at 5–15 km/h without stopping, significantly reducing congestion.
High Accuracy: The system delivers reliable results (±1% to ±2% accuracy), ensuring strict compliance with weight regulations.
Operational Efficiency: Faster vehicle processing minimizes delays and requires less manual intervention.
Cost Effective: Reduced manpower and low maintenance requirements lead to lower overall operational costs.
Enhanced Road Safety: Easily identify overloaded vehicles to protect infrastructure and improve safety.
Technical Performance Standards
| Parameter | Specification |
|---|---|
| Speed Range | 5 – 15 km/h |
| Weighing Capacity | Up to 100 Tons |
| Accuracy | ±1% to ±2% |
| Platform Type | Steel / RCC |
| Platform Length | 6m – 18m |
| Load Cells | Digital / Analog |
| Axle Detection | High-precision sensors |
| Display System | Digital Indicator / Software |
| Integration | ERP / RFID / CCTV |
| Power Supply | 220V AC |
| Temperature | -10°C to 60°C |
SSWIM vs Static Weighbridge
| Feature | SSWIM | Static Weighbridge |
|---|---|---|
| Vehicle Movement | Slow moving | Fully stopped |
| Speed | 5–15 km/h | 0 km/h |
| Efficiency | High | Moderate |
| Traffic Flow | Smooth | Can cause congestion |
| Automation | High | Medium |
Industry Applications
Slow Speed Weigh in Motion systems are widely used in:
● Toll plazas
● Mining and construction sites
● Logistics and transport hubs
● Industrial plants and factories
● Warehouses and distribution centers
● Ports and shipping yards
These applications benefit from improved efficiency, better traffic control, and accurate weight monitoring.
Why Partner With Us for SSWIM?
We provide high-quality sensors and load cells to ensure long-term reliability.
Our systems have a proven track record of accuracy and extreme durability.
Tailored solutions are available to meet your specific site requirements.
Benefit from expert installation and ongoing technical support from our team.
You get competitive pricing without compromising on industrial quality.
Comprehensive maintenance and after-sales service keep your system running 24/7.
Frequently Asked Questions
Q1. What is Low Speed Weigh in Motion (LSWIM)?
Slow Speed Weigh in Motion (SSWIM) is a vehicle weighing system that measures axle and total weight while vehicles move slowly over sensors. Unlike static weighbridges, it does not require vehicles to stop. As a result, it improves traffic flow and operational efficiency.
Q2. What is the speed range for LSWIM systems?
SSWIM systems provide high accuracy when vehicles move at recommended speeds. In addition, advanced sensors and calibration techniques enhance measurement reliability. As a result, they are widely used for compliance and monitoring.
Q3. How accurate is a Low Speed Weigh in Motion system?
High accuracy is achieved when vehicles move within the recommended speed range, while advanced sensors further improve reliability.
Q4. Does LSWIM require vehicles to stop completely?
No, vehicles do not need to stop completely. Instead, they move slowly over the weighing platform. Which results in reduced delays and improves overall efficiency.
Q5. Can LSWIM replace a traditional weighbridge?
In many cases, SSWIM can replace traditional weighbridges; however static system may still be required for legal purposes.
Q6. What type of vehicles can be weighed using LSWIM?
SSWIM systems can weigh a wide range of vehicles, including trucks, trailers, and commercial vehicles. Moreover, different axle configurations can be measured accurately. As a result, it is suitable for various industries.
Q7. Is the system suitable for outdoor environments?
Yes, SSWIM systems are designed for outdoor use. In addition, they are built with durable materials to withstand harsh weather conditions. Therefore, they perform reliably in industrial and highway environments.
Q8. Does the system require regular maintenance?
Regular maintenance is minimal but necessary for long-term performance. For example, periodic calibration ensures consistent accuracy. Moreover, routine checks help prevent unexpected issues.
Q9. Can LSWIM systems be integrated with software and automation?
Yes, SSWIM systems support integration with software and automation platforms. In addition, they can connect with ERP and traffic management systems. As a result, data monitoring and reporting become more efficient.