Can anybody help me in differentiating pit & pit less weighbridge according to it’s performance, maintenance, construction & defining pros & cons of both.
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Pit type weighbridge
A Pit type weighbridge is mounted in a pit. It takes more work to install. The weighing surface is level with the road.
This type of weigh bridge is mounted on a pit and require more effort to install. The weighing surface is level with the road and weighing equipment below ground level. This type of weighbridge is most suitable for places with limited space e.g. non-hilly areas where the construction of pit is not a costly affair.
This type of weighbridge is most suitable for places with limited space e.g. non-hilly areas where the construction of pit is not a costly affair. Since the platform is in level with the ground, vehicles can approach the weighbridge from any direction. Most public weighbridges prefer this design.
Benefits
- Lesser Space Required (As it has no ramps)
- Rickshaws & Tractor Trolleys can also be weighed as platform is in flush with ground Level.
- No Ramp require for turck movement because it is installed in land surface level
Pitless weighbridge
A Pitless weighbridge is mounted on the surface. The weighing surface is mounted with a ramp leading up a short distance.
This type weighbridge is mounted on the surface. The weighing surface is mounted with a ramp leading up a short distance. They are best installed where length and width of the space is not a problem and are also more suitable for hilly, rocky or low-lying areas which are prone to flooding. The civil cost is lower and lesser and lesser excavation is required.
This type of weighbridge / Truck scale is most suitable where the excavation work for foundation is difficult or construction of pit is expensive. Since the structure is above ground level, vehicles can approach the weighbridge only from two directions where the ramps are provided. This type of weighbridge requires more space.
Benefits
- Costly Pit construction is eliminated.
- Platform above ground level- No water logging during rainy season
- Problem of pit maintenance is eliminated.
- Easy maintenance since all parts accessible above ground level.
In Pitless weighbridge RCC ramp work must be required atleast 3 meters for both side for easy movement of vehicle.
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OK, nice one i got it but would there be any difference in performance of both. Which one is likely to get more wear & tear, which one would require more maintenance?? Which is having higher durability to handle loads without damage.
I have prepared rough catalog could anyone help to add further;
| Pit weighbridge | Pitless Weighbridge | |
|---|---|---|
| Installation | The construction of pit is time consuming task & acquires civil work for it. Installation time is 15 to 20 days. | Requires the construction of ramps, slopes & above ground construction for weighing platform. Installation time is 15 to 20 days. |
| Structure | In fixed Weighridge maintenance is more due to loosening of bolts | In fixed Weighridge maintenance is more due to loosening of bolts |
| Maintainance | Time consuming; as the weighing platform need to be removed for changing the load cells & confined area restrictions. | Less time consuming; as the weighing platform is present above the ground & load cells can be removed easliy. |
| Drains | Need to create separate drain channels for water loagging in rainy season. | No need to create separate drain channels as ramps would automatically drain water. |
| Clean out | Done manually & is time consuming. | Quick & easy, done with water hose or compressor. |
| Portability | Can’t be moved easily from one place to another as they need to be excavated below road level. | Can be moved easily from one place to another as they can be excavated easliy as they are above road level. |
| Scale inspection | Must be performed inside the pit. | Can be performed by simply walking around perimeter. |
| Electricity | Need to be provided for pit lights & pump if no gravity drain is present. | None |
| Pricing | Construction of pits involves a lot civil work & hence would require higher price | Construction involves building ramps & hence would require lower price comparatively. |
| Space | This type of weighbridge is most suitable for places with limited space e.g. non-hilly areas. | The weighing surface is mounted with a ramp leading up a short distance e.g. hilly, rocky or low-lying areas which are prone to flooding |
| Durability | The mounting assembly for load cells. This transfers the load from the platform to the load cells. This is a cradle assembly which is free to move in the horizontal axes and hence takes all side loads generated due to the vehicular movements on the platform. The mounting assembly consists of three parts namely, the Bottom Plate, Rocker assembly and Top Bracket. | The mounting assembly for load cells. This transfers the load from the platform to the load cells. This is a cradle assembly which is free to move in the horizontal axes and hence takes all side loads generated due to the vehicular movements on the platform. The mounting assembly consists of three parts namely, the Bottom Plate, Rocker assembly and Top Bracket. |
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You covered all points.
Some of them are quite similar if anybody could help me in differentiating it slightly.