Slow Speed In-Ground Weigh-in-Motion

Slow Speed In-Ground Weigh-in-Motion

Each weigh pad comes with two attachable ramps for static weighing. Should dynamic weighing be required, we recommend extra long weigh pads (1 meter) and leveling track. See portable weigh-in-motion for more information on using Ultraslim weigh scales to obtain dynamic weight.

These weigh pads are not legal-for-trade in obtaining static weight or dynamic weight.


  • Permanent, dynamic weighing process
  • Obtain truck and vehicle weight quickly
  • Truck weight accurate to 3% GVW, 95% CI
  • Slow speed applications (less than 16 km/hr)
  • Exceeds ASTM IV guidelines for slow speed WIM
  • Reliable scale system limited maintenance
  • Easy to Use Feature rich Weigh-in-Motion Software (WIMv5) includes axle weight, axle group weight, GVW, speed, overweight indication, automatic vehicle classification
  • WIMv5 built on Windows .NET platform for Windows 10 x64 bits
  • 7 year warranty on frame, 2 year for load cells

Product Details


Installation of Massload’s permanent weight in motion scale is simple. An approximate hole must be cut through the surface of the roadway where the scale will be placed. Scale frames are then bolted together with braces which will later be used to keep the scale flush with surrounding concrete.

Proper drainage is provided to the cutout and the scale frames are then suspended over the cutout. The braces ensure the permanent pads are installed flush with the surrounding concrete to ensure a level approach to the scale and a level departure from the scale.

The first pour creates the bottom of the scale pit. After the first pour has had time to cure, the second pour fills the outer portion of the scale cutout. Load cells, cables, sum boxes, LCIB computer interface, and WIM software are now ready to be installed to finish the scale installation.

WIM installation render
WIM installation render


The permanent in-ground WIM system comprises:

  • 1 Permanent WIM pad (for shipping purposes, separated into 2 decks)
  • 1 Summation box for the WIM load cells
  • 1 Cable for summation box to LCIB computer interface in the scale house
  • 1 LCIB Computer Interface Device
  • USB cable to connect LCIB to computer
  • 1 Weight In Motion (WIM) software package


  • Static and dynamic weighing mode
  • Automated vehicle classification with configurable classifications
  • Overweight indication based on vehicle classification
  • Optional vehicle detection loop to start and end vehicle weighment
  • Dual traffic light support
  • Inductive loop support
  • Configurable report generation
  • Configurable main screen – show only relevant data
  • Post weighing screen allows you to fill in additional information
  • Program security on settings and user logins to protect weight data
  • Convertable language library


Rated Capacity (pounds)

Dynamic weighing: 50,000 lbs per axle weight
Static weighing: 100,000 lbs per axle weight


Dynamic weighing accurate to 3% of gross vehicle weight, 95% CI
Static weighing: accurate to 0.25% full scale nominal

Overload Capacity

150% full scale safe overload
300% full scale ultimate overload

Temperature Range

-40ºC to +80ºC (operating)
-10ºC to +40ºC (compensated)


50 lbs standard


670 lbs / deck (2 decks per system)


High strength steel

Fatigue Limit

Infinite cycles (axle loads) per day

Ground Requirements

Accuracy is significantly affected by the scale foundation. This scale system must have a level and flat concrete approach and departure that is level within 1/16″ for the most accurate vehicle weight


144″ x 30″ x 6″
120″ x 30″ x 6″

Sealing Standard

IP-66: totally protected from dust; protected from strong jets of water


This dynamic scale is powered by the LCIB, which is powered from the USB port of the computer (draws < 500mA)


Inductive loops are another presence detection device that detect the electromagnetic signature of vehicles. They are used to begin or end a WIM process, and in this sense are similar in function to light curtains. Installation of inductive loops requires a 1/8″ saw cut that is 1″ deep and installed with copper wire and sealant.


Massload software can control traffic lights to help you manage the flow of traffic before and after weighments. Traffic lights are useful to stop vehicles that are overweight or to direct traffic that is underweight. They can also be used to start and stop vehicle weighing through manual or automatic (presence detection) devices.


Radio frequency identification tags can be placed in individual vehicles. When a vehicle with an RFID tag passes over the RFID reader at the scale site, their identification is tracked along with their weight. This allows you to track a fleet of vehicles easily and weight data can be sorted and analysed to understand fleet activity. Ideal candidates are mine sites with RFID tagged trucks to monitor truck weight and material flow.


The remote score board displays vehicle weight at a long distance. Remote score boards can come with 2″ lettering (visible to 50 feet), 4.5″ letter (visible to under 250 feet), and to 6.5″ lettering (visible to over 300 feet). Remote score boards can also come with traffic lights as seen here to direct the flow of traffic. Score boards allow you to check weight quickly and easily.

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