{"id":3568,"date":"2026-10-23T10:26:37","date_gmt":"2026-10-23T02:26:37","guid":{"rendered":"http:\/\/www.locksblog.com\/blog\/?p=3568"},"modified":"2026-10-23T10:26:37","modified_gmt":"2026-10-23T02:26:37","slug":"how-does-the-4-wheel-electric-cargo-flatbed-s-cooling-system-work-462b-d2499b","status":"publish","type":"post","link":"http:\/\/www.locksblog.com\/blog\/2026\/10\/23\/how-does-the-4-wheel-electric-cargo-flatbed-s-cooling-system-work-462b-d2499b\/","title":{"rendered":"How does the 4 – Wheel Electric Cargo – Flatbed’s cooling system work?"},"content":{"rendered":"

Hey everyone, if you\u2019ve ever stopped to check out the electric cargo flatbeds rolling through your city making deliveries, you might\u2019ve noticed a question fly through your head: how do these things handle all that heat when they\u2019re hauling heavy loads all day, especially in summer? As someone who\u2019s been selling 4-wheel electric cargo flatbeds for the last 5 years, I get asked this nonstop\u2014most folks assume, \u201cIt\u2019s electric, so it just runs on batteries, right?\u201d Nope, not even close. The cooling system is the unsung hero that keeps these trucks moving, and it\u2019s way smarter than the old AC setup you might remember from gas-powered vans. Let me break this down like I would to a new customer who just test drove one of our flatbeds last week. 4-Wheel Electric Cargo-Flatbed<\/a><\/p>\n

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First off, let\u2019s get one thing straight: our electric cargo flatbeds don\u2019t just have one cooling part. We have a whole network working together, and it\u2019s all tailored to how these trucks actually get used. Unlike a regular car that sits in traffic for 10 minutes at a time, our flatbeds are out making stops every 15 minutes, hauling 2,000 lbs of packages, groceries, or even small construction materials from dawn till dusk. That means the cooling system can\u2019t be big and bulky\u2014it has to be lightweight, efficient, and not waste battery power, because every extra watt we use for cooling is less power for your haul.<\/p>\n

Let\u2019s start with the main cooling loop, the one that keeps the battery and motor from turning into a molten mess. Electric trucks run on a permanent magnet synchronous motor (PMSM) most of the time, and that motor produces a ton of heat when it\u2019s pushing 4,000 lbs of truck plus cargo up a slight hill, or doing multiple stop-and-go runs in 90-degree heat. If that motor gets too hot, its magnets lose strength, and suddenly you\u2019ve got 20% less power to haul your load. Same with the lithium-ion battery\u2014lithium-ion hates heat, even more than it hates being fully drained. If the battery\u2019s internal temp goes over 110\u00b0F, its lifespan drops by almost half, and nobody wants to replace a $15,000 battery every two years.<\/p>\n

Our cooling system here is a liquid-to-air closed loop, no open water or anything like that. It\u2019s basically a small radiator tucked behind the front grille, same as a gas van, but way smaller\u2014we saved space by ditching the big engine. The loop has ethylene glycol coolant (but a special electric-grade mix that doesn\u2019t corrode the motor or battery components) that flows through tiny channels wrapped around both the motor\u2019s stator and the battery\u2019s cooling plates. When the motor or battery is working hard, they heat up, so the coolant absorbs that heat. Then a small, low-power electric pump pushes the hot coolant through the radiator, where a variable-speed fan blows air over the radiator\u2019s fins to cool the liquid back down. The fan doesn\u2019t just run full blast all the time\u2014we have temperature sensors in the motor, battery, and even the cab that tell the fan, \u201cOkay, motor\u2019s at 105\u00b0F, kick the fan to 70% speed; battery\u2019s only at 95\u00b0F, keep it low.\u201d That saves battery, which is huge for delivery routes that go 100 miles a day.<\/p>\n

Wait, but what about the cab? Delivery drivers are in that seat for 10 hours straight, right? They can\u2019t work if it\u2019s 100 degrees in the cab. So our flatbeds have a separate, mini AC cooling system that\u2019s tied into the same network, but it doesn\u2019t steal power from the main motor\/battery loop. A lot of cheaper electric delivery trucks use the same coolant loop for both cab AC and powertrain cooling, which is fine until your driver cranks the AC on high during a hot day, and suddenly your motor can\u2019t cool down enough. Ours splits it: the cab AC has its own compressor and evaporator, but it\u2019s powered by a 12V auxiliary battery, not the main traction battery. That means the driver can stay comfy without messing with the powertrain\u2019s cooling. We also add a little cross-flow vent between the cab and the cargo hold, so if you\u2019re hauling temperature-sensitive stuff like refrigerated meds or food, you can hook up a small, low-power vent that pulls cool air from the cab to the cargo area\u2014no need for a separate refrigeration unit that drains power.<\/p>\n

Another big thing I get asked: what happens if it\u2019s super hot, like 100\u00b0F in Phoenix, and the truck\u2019s been sitting outside for 8 hours before a route? The cooling system has a pre-cooling feature. You can plug the truck into a charger at the depot overnight, and set a timer on the app or the dash to pre-cool the battery and motor to 70\u00b0F 15 minutes before you leave. That way, you don\u2019t start your route with a warm battery, which means you get better range and less wear on the components. We added that after a customer in Arizona told us his old electric van would lose 25 miles of range if he left it sit in the sun all day. Pre-cooling fixes that by using grid power instead of the truck\u2019s battery to keep the components at the perfect temp.<\/p>\n

Wait, let\u2019s talk about common myths I hear from folks who used to drive gas delivery vans. A lot of them say, \u201cI don\u2019t need a cooling system, I just let the truck idle to cool down.\u201d But our electric flatbeds don\u2019t idle\u2014they shut off when you\u2019re not moving, and idling would waste battery anyway. So the cooling system has to work while the truck\u2019s moving and even when it\u2019s stopped. That\u2019s why we use variable-speed fans and pumps that draw power only when needed. If you\u2019re sitting at a stoplight for a minute, the fan doesn\u2019t stay on high\u2014it just keeps the coolant at the right temp. If you\u2019re moving down the highway at 50 mph, the air flow over the radiator is enough that the fan can actually turn off, saving power. We tested this in 100\u00b0F heat, and the cooling system only uses about 3% of the total battery power on a full route. Compare that to a gas van\u2019s AC, which uses 10-15% of your fuel, and it\u2019s a no-brainer.<\/p>\n

I should also mention the little details we\u2019ve tweaked over the years to make the cooling system more reliable. Last year, we noticed that some customers who hauled super heavy loads (like 3,000 lbs of construction materials) were pushing the motor harder, so we upgraded the cooling channels on the motor from 5mm to 7mm, which let more coolant flow through. We also added a filter on the coolant loop, so dust and gunk from city streets don\u2019t build up in the radiator fins. That\u2019s a big one\u2014if the radiator gets clogged, the cooling system doesn\u2019t work, and you\u2019re stuck on the side of the road. All our flatbeds have a sensor that sends a warning to the dash if the radiator\u2019s getting too clogged, so you can clean it at the depot before it becomes a problem.<\/p>\n

Now, let\u2019s address when this cooling system might have issues, because no system is perfect. The biggest thing is keeping the coolant at the right level. If you get a leak from a loose hose, the loop won\u2019t have enough liquid to absorb heat, and components can overheat. That\u2019s why we do a full coolant check at every 10,000 mile service, and we tell all our customers to check the reservoir level once a month, especially before long routes. Another issue is extreme cold\u2014wait, did I forget that? In freezing weather, the cooling system actually has a heating element built in, so the coolant doesn\u2019t turn to ice, which would crack the motor\u2019s cooling channels. It\u2019s a dual system: cools when it\u2019s hot, heats when it\u2019s cold. That\u2019s something most people don\u2019t think about, but our customers in Minnesota swear by it, because their old electric trucks would stop working in 10\u00b0F weather because the battery got too cold.<\/p>\n

As a supplier, I\u2019ll be honest: we don\u2019t cut corners on the cooling system, because that\u2019s what makes our flatbeds worth buying. A lot of budget electric flatbed makers skimp on the cooling to save money, and their customers end up with broken motors or dead batteries after a year. I\u2019ve seen that too many times\u2014last year, a guy came to us because his $20,000 electric flatbed\u2019s motor died after 18 months, and the cooling system was so small it couldn\u2019t handle summer heat. We built our cooling system to handle up to 115\u00b0F, which is hotter than almost any delivery route in the US, and it\u2019s been tested for over 5,000 hours of continuous use.<\/p>\n

If you\u2019re here because you\u2019re looking to buy an electric cargo flatbed for your delivery business, or you\u2019re just curious about how these things work, know this: the cooling system isn\u2019t just a box of parts\u2014it\u2019s the reason these trucks can run all day without breaking down. It\u2019s optimized for delivery work, not just for highway driving, which is why our customers tell us their flatbeds get 20% better range than the competitor models they tested.<\/p>\n

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If you\u2019re ready to chat about how our 4-wheel electric cargo flatbeds can fit your routes, or you have more questions about the cooling system or any other part of the truck, just reach out. We\u2019re here to work with you to figure out what you need, whether that\u2019s a small fleet of 5 trucks for a local grocery delivery company, or a bigger order for a construction supply business that hauls heavy loads. Don\u2019t hesitate to connect with us to start the conversation about procurement and customization.<\/p>\n

Four Wheel Delivery Electric Vehicle<\/a> References<\/p>\n

    \n
  1. \u201cThermal Management of Electric Vehicle Batteries: A Review\u201d \u2013 Journal of Power Sources, 2021<\/li>\n
  2. \u201cDesign Optimization of Liquid Cooling Systems for Electric Delivery Vehicles\u201d \u2013 SAE International Technical Paper, 2022<\/li>\n
  3. \u201cPermanent Magnet Synchronous Motor Thermal Performance Under Dynamic Loads\u201d \u2013 IEEE Transactions on Industrial Electronics, 2020<\/li>\n<\/ol>\n
    \n

    Taizhou Xiangyuan New Energy Technology Co., Ltd.<\/a>
    As one of the leading 4-wheel electric cargo-flatbed manufacturers and suppliers in China, we warmly welcome you to wholesale cheap 4-wheel electric cargo-flatbed for sale here from our factory. All customized products are with high quality and low price. Contact us for pricelist.
    Address: NO.7HUANGJIN ROAD,METAL RESOURCES RECYCLING INDUSTRY BASE, LUQIAO, TAIZHOU, ZHEJIANG
    E-mail: order@jiajiev.com
    WebSite:     https:\/\/www.jiajiev.com\/<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

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