One of the first decisions when buying a weighbridge: pit or pitless?

Both work. But in African conditions – heavy rain, dust, limited maintenance budgets – the choice matters more than you might think.

At Fujian Fangda Weighbridge & Truck Scale Manufacturer, we’ve installed both types across Zambia, Kenya, Tanzania, and Nigeria. Here’s what real field data tells us.

Pitless (above-ground) – the low-hassle choice

What it is: The scale sits on concrete foundations above ground. Approach ramps on both ends—no hole to dig.

Real advantages:  

- No flooding risk – rain runs off, not into a pit. In a Kenyan grain depot with seasonal heavy downpours, a pitless scale has run for 5 years with zero water damage.  

- Easy maintenance – you can walk under the deck to inspect cables and clean debris. No climbing into a dark, muddy hole.  

- Faster installation – foundation prep + scale assembly takes 5–7 days. Pit construction takes 2–3 weeks (plus extra curing time).  

- Lower civil cost – pitless foundation typically costs $1,500–$3,000. Pit construction costs $3,000–$6,000, depending on soil and drainage conditions.  

- No pump needed – pit scales often need a sump pump to remove standing water. Pumps fail, and when they do, your load cells sit in water.

Where it struggles:  

- Requires more land – approach ramps add 5–7 meters on each side.  

- Not ideal for extremely tight urban sites.

Best for: Most mines, logistics yards, farms, and factories – especially in rainy regions.

Pit-type (flush with ground) – the space-saver

What it is: Scale sits in a concrete pit, level with the surrounding surface. Trucks drive straight on – no ramps.

Real advantages:  

- Saves space – no approach ramps needed. Perfect for container depots, border posts, and city yards where land is tight.  

- Multi-direction approach – vehicles can enter from either end without turning.  

- Looks neat – flush surface, no ramp humps.

Where it struggles (from our service logs):  

- Water is the enemy – poor drainage turns the pit into a swimming pool. We’ve pulled load cells from a Tanzanian pit scale that had been submerged for 3 days. Replacement cost: $1,200 plus 2 days of downtime.  

- Cleaning is manual – someone has to climb down and shovel mud. One pit scale in a Zambian mine needed cleaning twice a month during the rainy season – 3 hours each time.  

- Higher civil cost – reinforced concrete walls, drainage channels, sump pump add $2,000–$4,000 to installation.  

- Harder to inspect – checking cables and junctions means working in a confined space.

Best for: Urban depots, container terminals, border crossings where space is the 1 constraint.

What we recommend – based on site conditions

Rainfall > 1,000mm/year? – go pitless. Flooded pits are expensive.

Tight urban site with no land? – pit may be your only option, but budget for proper drainage and a reliable pump.

Mine with dust and mud? – pitless wins. Easier to clean, less water damage.

Border crossing with high traffic? – either works, but we’ve seen more pitless units chosen in recent years to avoid drainage headaches.

Real numbers from our installations

- Pitless installation cost (80t): $1,500–$3,000 foundation + 5–7 days  

- Pit installation cost (80t): $3,000–$6,000 + 2–3 weeks + ongoing pump maintenance  

- Water-related callouts: pit scales – 4x more frequent than pitless in rainy areas  

- Customer satisfaction (5-year follow-up): pitless users report fewer unplanned maintenance events – 82% vs 61% for pit users

Fujian Fangda Weighbridge & Truck Scale Manufacturer's approach

We build both. But we’re honest about which works best for your site. For most African mines, logistics yards, and farms, we recommend pitless – it’s simpler, cheaper to install, and easier to maintain.

If your site truly needs a pit design, we provide detailed drainage drawings, pump specifications, and cleaning schedules to keep it running.

Bottom line

Pitless is simpler, drier, and cheaper to maintain. Pit saves space but demands more attention. Choose based on your land, rain, and maintenance team – not just the initial price.

Need a site assessment? Send us photos and your daily truck count. We’ll tell you which design has worked best in similar conditions.

Fujian Fangda Weighbridge & Truck Scale Manufacturer – weighbridges that fit the way Africa works.

Fujian Fangda Weighing Instruments provides a full range of electronic truck scales from 30 tons to 200 tons