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| How Does a Concrete Pump Work? |
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Posted by: Eddiejet - 09-08-2022, 03:13 AM - Forum: concrete machinery
- Replies (2)
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Concrete ground pumps, also called concrete line pumps or fixed concrete pump, place concrete via the extended pipelines running along the ground. Actually, the ground line pump can reach 150 meters vertically and more than 1000 meters horizontally.
If you are undertaking commercial concrete projects, the concrete pump machine is a better solution. Or, when you are working on residential constructions involving concrete infusion, it is also bettter to use concrete ground pump rather than a wheelbarrow.
Here are mainly three different types of concrete ground pump: Concrete trailer pump, concrete mixer pump, truck-mounted concrete pump (here refer as the static pump with a truck chassis).
Concrete trailer pump and truck-mounted concrete pump are similar. Both of them need an extra mixer truck to discharge the ready mixed concrete to the hopper of the pump machine.
First, the concrete pump will suck concrete material out of the hopper into the pumping system. Later, it will push concrete into the pipelines through S-Valve.
The concrete mixer with a pump is able to mix cement by itself because it has a mixer drum. Therefore, it doesn’t need another large mixer truck to convey wet concrete.
The work of mixing and pumping on-site saves much time and labor.
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| How to clean trailer concrete pumps |
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Posted by: Eddiejet - 09-08-2022, 03:04 AM - Forum: concrete machinery
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A common issue with concrete pumps is that they tend to get blocked after use.
This is why it is important to clean the pipelines so blockages won’t be an issue the next time you use them.
Cleaning the mini concrete pump is vital if you want to keep it working optimally.
Regular cleaning helps to increase the rate of pump pulsating. It also prevents blockage in the pipes/ lines and reduces premature wear of the pump.
First, you bring the hopper down low. Then you fill it with water and start the pump again.
The water pushes out any concrete that’s left in the hose.
If you don’t use water, you’ll end up pumping only air through and the hose won’t end up clean.
After pumping water through, and making sure the hose is concrete free, remove the hopper from the hoses.
It can take up to 6 buckets of water before the hose is completely free of concrete.
Wash the hopper, and place the concrete pump’s cleaning sponge ball (photo below) soaked with water in the reducer.
Add water to the hopper until it’s full and can push the cleaning sponge down the pump and through all the hoses.
Your cleaning sponge should be one size bigger than the hose so it can do a thorough job cleaning.
Once the ball is out of the system, wipe down the ends of the last hose used and disconnect from the system.
Keep in a proper storage area when you’re done.
Make sure to grease the pump after every job, and empty the water box regularly. Check for any loose connecting rods and pistons and tighten them.
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| Tips on picking concrete pumps |
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Posted by: wade - 09-08-2022, 03:00 AM - Forum: concrete machinery
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There are a few things to consider before buying or leasing a concrete pump.
First is the amount of space where you’ll be pouring the concrete. Some pumps such as a mini concrete pump are ideal for restricted spaces.
Next is the size of the area where you’ll be working.
If it’s a large area that needs to be completely filled, then trailer concrete pumps are the ideal choice.
They are a great option when you need to pour concrete over a large area at a slower rate.
You also need to consider if there are any weight or access restrictions on the site.
If there are then you may need a boom pump, specifically, a trailer-mounted boom
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| concrete pump maintenance tips |
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Posted by: wade - 09-08-2022, 02:58 AM - Forum: concrete machinery
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A concrete pump can be an instrumental piece of equipment that easily delivers concrete when and where you need it for a construction job. Like any piece of equipment you use, the better you take care of it, the longer it will last, and the more effective it will be.
Once you develop a consistent boom pump maintenance schedule, you should have no problem executing the essential steps required to maximize your equipment. Here are some helpful concrete pump maintenance tips to get you started.
THE IMPORTANCE OF PUMP MAINTENANCE SCHEDULING
Schedule routine inspections to keep your concrete pumps operating at maximum efficiency and safety. Your pump maintenance procedures help reduce the risk of breakdowns, saving you time and money in the future. Fewer emergencies and less downtime mean a safer, more reliable working environment.
Many people fall into the mindset of only completing the necessary repairs to maintain operations. However, preventive maintenance is a sustainable option for any machinery. A pump maintenance schedule will protect your investment in your equipment. For construction companies, office administration and customer project deadlines often take up most of your time. Scheduling ensures your concrete pump receives proper care even when you get busy with other demands.
Concrete pumping saves you time, allowing you to complete more work in a day and even visit multiple sites. You want to ensure your construction projects receive all the benefits of concrete pumps for as long as possible. Following a routine maintenance checklist will extend your concrete pump’s lifespan
Your concrete pump preventive maintenance checklist should include the following tasks.
EVERY DAY
Lubrication is an essential aspect of daily concrete pump maintenance. At the end of each day or after an eight-hour shift:
Grease the back end of the pump.
Check the oil.
Inspect the pretension on the gas of the accumulator.
Check the wash-box for grout and dump the water.
Replace any blown fuses.
Check the truck diesel, oil, power steering fluid, radiator fluid and tires.
EVERY WEEK
At the end of the week or after 40 hours of use:
Check the grease pod.
Check oil levels in the pump and water levels in the wash-box.
Make sure the boom filter gauges are in the green.
Make sure all the prop switches are working.
Inspect the truck alternator, lug nuts and belts.
EVERY THREE WEEKS
Or after about 100 hours of use:
Grease the entire boom, ensuring the turret is not under or over greased.
Look for damaged gaskets or leaks on the boom.
Check the hydraulic hoses for bubbling, dry-rotting, cracking or abrasion.
Inspect the switchover cylinders.
Check the cutting ring pretension.
Examine the truck brake pods, air lines and the tension on the belts.
Get the truck to 100 PSI, shut it off and press the gauge until the switch pops out to make sure the brakes work at low pressures.
Make sure the truck’s bolts are tight in the frame.
EVERY SIX WEEKS
Or after about 250 hours of use:
Change the oil in the boom pump.
Repack the differential cylinders if there is oil in them.
Look for wear fatigue on the water tank.
Check for leaks and adequate water levels in the wash-box.
Change the boom filter and two primary tank filters.
Check the boom hand valves for leaks and rust on the end caps of the coils.
Inspect the blowout hose for dry-rotting, cracking or other problems.
Look for leaks in the outriggers.
Look for pretension on the outrigger chain.
Check the cutting ring pretension.
Make sure the compression seal inside the cutting ring is intact.
Examine the wireless control.
Inspect the hard line box.
Additionally, it is crucial to perform preventive maintenance on the truck:
Change all the truck filters and dump the fluids.
Check the shift tower.
Inspect the belts thoroughly.
Check the exhaust pipe system, including the turbocharger and muffler.
Grease the transmission and check the fluid inside.
Ensure there is no play in the output shaft.
Make sure the universal joints and carrier bearing are in good shape.
Check for oil in the first and second drive axles.
Examine the air tanks, air lines and dryer.
Inspect the clutch pretension.
Check the radiator by blowing air from the engine to the radiator and back.
Make sure the slack adjusters can move.
EVERY THREE MONTHS
Or after about 500 hours of use:
Inspect the boom in its entirety.
Check the material cylinders.
Make sure the turret has adequate torque.
A complete pump inspection should include careful examination of all elements, including the boom, pipework, pistons, hydraulic controls, electric controls, cutting ring, stabilizers, spec plate and hopper. A professional can also check the pump’s maintenance to ensure proper lubrication and sufficient oil and water levels.
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| Why are mining dump trucks so big? |
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Posted by: Eddiejet - 09-07-2022, 06:35 AM - Forum: Large Mining Trucks
- Replies (2)
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As companies mine the ground for coal and other valuable resources, huge dump trucks are needed to carry the extremely-large loads of dirt, coal, and rocks that are taken out of the ground. And the more a dump truck can carry, the less it costs the mining company per load to haul its resources.
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| The World’s Top 5 Biggest Mining Dump Trucks 2022 |
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Posted by: Eddiejet - 09-07-2022, 06:30 AM - Forum: Large Mining Trucks
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[size=1]Here at Eastern Plant Hire, we love big trucks, materials haulage is a massive part of our business so whenever we hear news of a new of different truck being released the office buzzes. Each year the big brands, Caterpillar, Komatsu, Terex and Liebherr bring out their shiny new truck, whether for underground mining, city streets or the ultra-class bulk haulage trucks. This constant competition ensures that each year the standard and quality of dump truck increases.[/size]
[size=1]If you going back a few decades the only priority was making a high performing dump truck, whereas today there are a range of priorities, including performance that makes up the dump trucks of the 21st Century. Operator comfort, safety, efficiency, longevity and performance all combine together to make industry-leading dump trucks.[/size]
[size=1]Working in the construction industry for over 20 years has exposed us to some of the biggest and best construction equipment and trucks Australia has to offer. However, these pale in comparison to the ultra class dump trucks most often found on mines in remote places around the world. Below we’ll go through the five biggest mining dump truck the world has to offer, and you may be surprised with who takes out the number one spot![/size]
![[Image: belaz75710.jpeg]](https://www.easternplanthire.com/wp-content/uploads/belaz75710.jpeg)
[size=1]1. The BelAZ 75710 Dump Truck[/size]
[size=1]Capable of hauling a whooping 450t of materials in one load the BelAZ 75710 takes out the top spot for the biggest mining dump truck. The dump truck is manufactured in Belarus and can be found on mine sites predominantly in Russia and Eastern Europe. The dump truck, which averages anywhere between $6-$7.5 million, has dual engines, designed to relieve the stress hauling at maximum 450t of materials.[/size]
[size=1]With a two-axle setup and four wheels to an axle, the eight massive tires needed stand around four metres tall. At 20.6 metres long the dump truck is not only able to haul the most amount of materials in the world but is also the biggest dump truck in the world. Lastly, to make your eyes water it’s said to drink 1,300L of fuel per 100km.[/size]
[size=1]While the company, BelAZ, heralds from the days of the Soviet Union, Belarus’s reputation for high-quality manufacturing can be seen in this beast of the mining world. Since it’s launch in 2013 the BelAZ 75710 has earned a reputation as reliable and efficient.[/size]
[size=1]2. The Caterpillar 797F Dump Truck[/size]
[size=1]With a payload capacity of 360t, the Caterpillar 797F dump truck comes in second place for the biggest mining dump truck. In saying that, you are much more likely to run into a Caterpillar 797F dump truck than you are a BelAZ 75710 at a mine in Australia. Featuring a 20-cylinder diesel engine and rear-axle mounted transmission the dump truck is capable of reaching maximum speeds of 68km/h.[/size]
[size=1]The Caterpillar 797F is the third generation Caterpillar 797 which has been in production since 1998. With a mechanical drive powertrain instead of a diesel-electric powertrain, popular of ultra class dump trucks, the Caterpillar 797F has ensured their haul trucks are a cut above the competition.[/size]
[size=1]2. The Liebherr T 284 Dump Truck[/size]
[size=1]Unveiled in 2012 the Liebherr T 284 is both innovative and reliable. While being about to haul the same payload as the Caterpillar 757F, 360t, the Liebherr T 284 is almost 30t lighter, meaning the dump trucks functions are put under less strain when at full capacity. The Liebherr dump trucks have been renowned for their longevity, with many mine sites globally still using models that have long been retired.[/size]
[size=1]2. The Terex/Bucyrus MT6300AC Dump Truck[/size]
[size=1]Sharing the title of second largest dump truck in the world with the Caterpillar 797F and the Liebherr T 284 the Terex MT6300AC dump truck is capable of hauling a maximum 360t of materials. It was originally designed and manufactured by Terex but after it’s mining equipment division was acquired by Bucyrus International Inc. the dump truck was rebranded to the Bucyrus MT6300AC.[/size]
[size=1]Sporting a 3,750 horsepower 20V4000 four-stroke diesel engine the Bucyrus MT6300AC has two tiple reduction geared electric motors located at each side of the rear axle. Lightly slower than the Caterpillar 595F and the Liebherr T 284 the Bucyrus MT 6300AC’s max speed tops out at 64km/h. However, it’s most notable feature is it’s bed heating option, making unloading certain materials in cold climates both easier and faster.[/size]
[size=1]3. The Komatsu 960E-1 Dump Truck[/size]
[size=1]Announced in 2008 the Komatsu 960E-1 is capable of hauling 325t of materials. Although the Komatsu has a slightly smaller payload than the larger 360t payload dump trucks they are known for being easy to drive and comfortable for operators. Two things that are important when working long shifts in hazardous conditions.[/size]
[size=1]The 2-stage turbo-charged engine consumes on average 160L an hour when running, which also happens to be more efficient than its heavier dump truck counterparts. While not the biggest in its field the Komatsu 960E-1 is both reliable and efficient, perfect for mine sites looking to reduce costs.[/size]
![[Image: Road-Construction-Project-Supplies-1.png]](https://www.easternplanthire.com/wp-content/uploads/Road-Construction-Project-Supplies-1.png)
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| Things Need to Know Before Purchasing the Road Marking Machine |
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Posted by: Eddiejet - 09-07-2022, 06:11 AM - Forum: Road Construction Machinery
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Today’s traffic is well developed. All kinds of road marks and lines became the protection for us to walk, drive and ride. The quality of marks and lines determines their service life, so choosing the right road marking machine is very important before you buy one. Here is what you should know:
1. Engine: Most road marking machines are taking engine as a power source, only a few are battery-powered. Well, the engines have power around 2.5HP to 20HP with different brands, generally speaking, famous brands have stronger points, such as stable performance and easy procurement of spare parts. Since the engine almost decides the whole performance of the machine, you really need to put it into consideration.
2. Air compressor: For road marking machines relying on air pressure (rather than hydraulic pressure), the air compressor will also affect the overall performance of the machine. Like the engine, you should consider buying the internationally renowned brands of air compressors. Within the reasonable range, the air compressor with larger air discharge is better than others.
3. Material barrel: it has two main functions: First, holding the materials, in this way, the size of the barrel can affect the capacity and efficiency of material charging. Another function is to provide power for the marking process by generating pressure in the barrel. So its sealing, safety and corrosion resistance ought to be considered. Most of the well-made material barrels are made of stainless steel.
4. Spray gun: there are two spray types in current the market, one is the "spray box" which is relatively cheaper and suitable for sports turf and common parking lots; another is the spray gun that suitable for larger road constructions and civil works.
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| Maintenance Tips for Cold Paint Road Marking Machine |
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Posted by: Eddiejet - 09-07-2022, 06:10 AM - Forum: Road Construction Machinery
- No Replies
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1. Don’t leave too much paint in the bucket after a day's work, clean it if you can. Regularly add greasing and lubricating oil to the bearings and other rotating parts.
2. Clean the high-pressure coating pumps and pipes each day. Pump in a small amount of machine oil after cleaning if you need to leave it unused for a long time, in order to prevent the pump and pipeline corrosion. The cleaning process is as follows:
a. Open the discharge valve, and get out all the paint in the energy accumulator.
b. Open the paint bucket and open paintball valve to exhaust the paint.
c. Close the paint bucket and open paintball valve, then draw the paint thinner into the paint bucket.
d. Put the straw into the paint thinner bucket for circulation.
e. Start the engine; let the paint thinner goes into the pumps and pipes to circularly clean them.
f. Close the discharge valve, and shot all the paint out of the pipes with gun jet and paint thinner.
g. Repeat the above steps if necessary.
h. Clean the gun jet and coat it with machine oil or just immerse the gun jet in the oil.
3. Replace the hydraulic oil every 2,000 working hours; if the hydraulic oil turns dark, replace it immediately.
4. Replace the machine oil after the first month or 200 working hours for the first time. And then replace the oil every 6 months or 1000 working hours.
5. Clean the air filter, spark plug, precipitation cup every 6 months or 1000 working hours.
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![[Image: main-1175.jpg]](https://www.mining-technology.com/wp-content/uploads/sites/19/2017/10/main-1175.jpg)