Direct Driven Air Compressor
Zhejiang Meizhoubao: Your Professional Direct Driven Air Compressor Manufacturer!
Zhejiang Meizhoubao Industrial & Commercial Co.,Ltd. is one of the air compressor manufacturers in China that produces all kinds of air compressors. We are a modern enterprise combining with research, development, manufacture and trading. Meanwhile we have leading-edge workshop, leading-edge production assembling lines, precise testing equipments and skilled staffs.
Rich Experience
Founded in 2003, our company has 20 years experience in air compressor and 15 years OEM experience for more then 100 clients around the world.
Professional R&D Capability
There are professional R&D teams and independent research and development under the leadership of human resources such as Professor Xu Shiwei from the School of Mechanical and Vehicle Engineering of Hunan University and doctoral supervisor.
Integrated Team
Our company is an enterprise integrating production, scientific research, production, domestic and foreign trade and warehousing. The company team has sales center, foreign trade department, domestic sales department, R&D center, production department and after-sales department.
Strong Production Capacity
Our company has produced 1 million air compressors annually, with more than 200 product models. The products sell well all over the country and are exported to more than 60 countries and regions in the world.
Complete Qualifications
Our company designs and manufactures high quality products with 12 R&D engineers. We have CE, CCC, ISO9001, ROHS certificate and so on.
Direct Drive Air Compressors are a type of air compressor that are designed for use in various welding applications. These compressors are equipped with a motor that is directly connected to the compressor’s pump, providing maximum efficiency and power output. Direct Drive Air Compressors are ideal for smaller workshops or DIY projects, as they are compact and easy to store. They are also low maintenance, making them a cost-effective choice for many users. Direct Drive Air Compressors are perfect for powering air tools such as nailers, spray guns, and impact wrenches, as well as for inflating tires and powering other small pneumatic equipment.
Motor/Pump Unit
Provides the power and compresses air to the desired pressure.
Receiver
Air storage providing pulsation free air on demand.
Pressure Switch
Monitors the air pressure in the receiver and starts and stops the compressor automatically according to pressure level. Also acts as the compressor on/off switch.
Receiver Pressure Gauge
Indicates Air pressure in the receiver.
Outlet Pressure Gauge
Indicates air pressure being used/ delivered down the airline.
Air Outlet Valve
Some models have more than one outlet valve and can be regulated or unregulated.
Regulator
Enables air pressure to be regulated to the outlet valve.
Non-Return Valve
Prevents the air pressure stored in the receiver from returning back to the pump unit.
Bleed Pipe
When the pressure switch turns off the motor any back pressure in the delivery pipe and pump unit is exhausted down this bleed pipe.
Delivery Pipe
Delivers the compressed air from the pump to the receiver.
Safety Valve
In the event of excessive pressure build up this valve will release the excess pressure to the atmosphere.
Air Intake Filter
Filters the intake of air to protect the pump unit from damage of air born debris. On some models the filter in integrated into the pumps head.
Drain Valve
Allows the draining of moisture build up inside the air receiver.
This is a manual operation and must be done daily.
Oil Dip Stick
To measure oil level also fill port for oil. Not on oil free models.
Working Principle of Direct Driven Air Compressor
The working principle of a direct drive air compressor is very simple. As the motor turns, it rotates two or more gears that in turn spin an even smaller gear inside the cylinder which compresses the gas into liquid form.
The piston and crankshaft assembly are also connected so they move together as one unit without any type of belt or pulley to get in the way.
This type air compressor can be used in painting, air tools, auto repair and nail gun.
Features of Direct Driven Air Compressor
Compact Design
Due to the removal of a belt-driven system, direct drive compressors have a compact and maintenance friendly design. They are therefore simple to install at site – Plug & Play units.
High Efficiency
Direct drive compressors come with direct transmission which almost eliminates drive loses, increasing output efficiency. The direct drive mechanism maximizes efficiency and minimizes energy loss allowing direct drive air compressors to carry out heavy -duty continuous demand applications with ease.
Low Maintenance
Direct drive compressors require less maintenance since they have fewer moving components. The direct drive technology also does away with the necessity for expensive and time-consuming belt maintenance and tensioning.
Withstand Harsh Environments
Direct drive compressors are suitable to operate within extreme environments and tough conditions. They are frequently used by industries like cement and metal, where they may be exposed to dust, debris, and extreme temperatures.
Advantages of Direct Driven Air Compressor
Compact and Lightweight
Direct drive air compressors are smaller and lighter compared to belt drive air compressors, making them portable and easy to move around.
Simple Maintenance
With fewer components, direct drive air compressors are generally easier to maintain and require less maintenance compared to belt drive air compressors.
Higher Efficiency
The direct connection between the motor and pump in a direct drive air compressor results in higher efficiency and better performance, as there are no energy losses due to belts or pulleys.
Cost-Effective
Direct drive air compressors are usually more affordable compared to belt drive air compressors, making them a budget-friendly option for DIYers or occasional users.
Constraints of Direct Driven Air Compressor
Loud Noise
The direct link between the electric motor and the compressor pump, while efficient, tends to turn up the volume — direct drive compressors are generally noisier than their belt driven counterparts.
Maintenance Cost
With fewer parts in the mix, a failure in one integral component can hit you harder in the wallet. Take, for example, a shaft seal at the connection points for the crankshaft — it’s a critical part of the direct drive compressor’s overall operation, and if it falters, the repair bill can climb.
Higher Initial Costs
Lastly, the upfront investment might give you a moment of pause. Direct drive compressors, designed to meet higher standards and endure diverse environments with fewer moving parts, often come with a steeper initial cost.
Applications of Direct Driven Air Compressor
Manufacturing Facilities
Direct drive air compressors deliver the consistent power and air volume needed to operate pneumatic tools, automation equipment, and production lines. Their reliability is crucial for minimizing downtime in manufacturing settings.
01
Automotive Workshops
From air-powered tools to paint sprayers, direct drive compressors provide the necessary airflow for a range of automotive tasks. Their compact size and reduced noise levels are a bonus for workshop environments.
02
Construction Sites
Often operating in harsh conditions, direct drive compressors can withstand the rigors of construction sites. They provide power for tools like nail guns, jackhammers, and more.
03
Industrial Processes
Many industrial processes rely on compressed air for powering machinery, cleaning, and process control. Direct drive compressors ensure a dependable compressed air supply for these critical operations.
04
Other Industries
The applications for direct drive air compressors extend to woodworking, agricultural settings, food and beverage facilities, and numerous other industries.
05
Installation of Direct Driven Air Compressor
Foundations
Direct Driven air compressors are supplied either with rubber feet or wheel mounted. The feet and wheel absorb vibration; the compressor must not be fixed rigidly to the floor and should be positioned on firm level ground.
Siting and Ventilation
Good access and headroom should be provided around the compressor for servicing. Adequate protection from the weather must also be provided. Good ventilation is vital, for maximum efficiency. Intake air should be as clean as possible. Air impurities, abrasive dust and corrosive gases are particularly harmful to the compressor.
Mains Connection
The direct driven arir compressor should be located as close to the mains supply as possible. Check that this supply is the same voltage as marked on the motor rating plate and that the wiring conforms in all respects to local regulations.
Voltage Drop
If the direct drive air compressor is moved a long way from the mains supply, the motor may appear to be sluggish, slow, buzz or unable to start. This is due to voltage drop caused by the extended lead to the compressor. This can be prevented, by increasing the size of the cable. Incorrect voltage at the motor will invalidate any guarantee.
Before Starting Check
That the direct driven compressor is correctly installed and that the supply voltage is correct and all fuses are correctly rated and intact. Also, that all maintenance checks have been carried out and the contents of the manual have been read and fully understood, by all appropriate persons.
Pressure Switch Starter Button
Most machines are fitted with a black pressure switch combining a STOP/START button on the top. In the 'UP' position the motor will start, in the 'DOWN' position the motor will stop and the switch will bleed the pump head. If it is necessary to stop the machine before the normal cut - out pressure is reached this button should be depressed to stop it.
Automatic Running
Once started your compressor stops and starts automatically. This is controlled by the pressure switch which is preset at the factory to stop the motor when the pressure in the tank reaches it's maximum working pressure and to automatically restart the motor when the pressure in the tank decreases to a predetermined pressure (about 35psi below maximum working pressure). If for some reason you want to stop the compressor, and immediately start again, the compressed air above the piston must be bled, to unload the compressor on start up.
Pressure Regulation
Your compressor may be fitted with a pressure regulator or combined air filter and pressure regulator. Simply turn the pressure control knob to adjust the outgoing pressure, clockwise to increase the pressure and anticlockwise to reduce it, the outlet pressure is shown on the regulator gauge.
Tips for Using Direct Driven Air Compressor
Breathable Air Warning
This compressor/pump is not equipped for, and should not be used to supply breathing quality air for any application of air for human consumption.
Overload protection
This compressor is fitted with an overload protection device. In the event that the motor becomes too hot, a thermal protection device will cut the mains supply to the motor. When the motor temperature returns to normal the mains supply will be restored automatically.
Extension Cords and Reels
In general, it is not recommended to use an extension lead. A longer air line is recommended as voltage drop on extension leads may lead to motor damage and will void warranty. If an extension cord must be used, for lengths up to 5 metres, an approved 15 amp rated cord must be used.
Do Not Abuse the Power Cord
Never yank or pull on the power cord to disconnect it from the mains supply socket. Never carry or drag your compressor by its power cord. Keep the power cord away from heat, oil, solvents and sharp edges. If the power cord becomes damaged have it replaced by an authorized service facility.
Check Damaged Parts
Before using the compressor it should be carefully checked to determine that it will operate properly and perform its intended function. Check for the correct alignment of moving parts ensuring they do not bind. Check for broken or missing parts and have them replaced or repaired at an authorized service centre. Check any other condition that may affect the operation of the compressor. A guard or any other part of the compressor that is damaged should be properly repaired or replaced by an authorized service centre.
Disconnect Compressor
Ensure that the compressor is disconnected from the mains supply and the tank is empty when not in use, before servicing, lubricating or making adjustments to air lines, and when changing accessories such as blades, bits, nails and cutters on air tools.
Avoid Unintentional Starting
Ensure that the switch is in the OFF position before plugging the compressor into the mains supply.
Turning the compressor ON and OFF
Use the red knob on top of the pressure switch to turn the unit on and off. Pull the knob up to turn the compressor on and push the knob in to turn it off. Turning the unit on and off from the mains supply only will result in damage to the motor and void warranty as the pressure switch has an additional function to purge the air trapped in the delivery pipe when the motor is turned off. This minimizes the load on the motor when it is next started.
What Should Be Considered When Selecting a Direct Driven or Belt Driven Air Compressor ?
Use Frequency
If your air compressor sees occasional action, the cost effectiveness and less frequent maintenance requirements of a belt drive make it a solid choice. On the flip side, if you’re cranking up that air compressor on a regular or near continuous basis, direct drive is your go to.
Budget
If you’re on a tight initial budget, a belt drive will work better, giving you a lower starting budget to get your air compressor into operation. However, if you’re concerned about your long term operating budget, a direct drive will have lower maintenance costs down the road, often giving you a lower overall cost over the lifespan of the air compressor.
Maintenace
When minimizing downtime is the name of the game on your production line, direct drive systems take the lead. With fewer maintenance tasks on their to do list, they outshine belt drives that demand more frequent attention. Plus, direct drive systems boast a longer service life, reducing the need for frequent replacements and elevating their reliability compared to their belt drive counterparts. It’s the recipe for a smoother and more dependable operation.
Environment
The choice of air compressor type can be influenced by the environment it’s destined for. Harsh conditions and extreme temperatures are the wild cards that can throw a wrench into the works for certain air compressor types when used regularly in such environments. It’s a crucial factor to weigh in the decision making process.
FAQ
Q: What is a direct driven air compressor?
Q: What are the components of direct driven air compressor?
Q: What is the working principle of direct driven air compressor?
Q: What are the advantages of direct driven air compressors?
Fewer moving parts mean less wear and tear and lower overall maintenance costs.
Increased Efficiency
The direct connection improves energy efficiency, reducing operational costs.
Durability
Direct drive systems excel in harsh environments and withstand extreme temperatures.
Compact Footprint
Ideal for applications where space is limited.
Q: What are the disadvantages of direct driven air compressors?
Limited Power: Direct drive air compressors are typically suitable for small- to medium-sized applications and may not provide enough power for heavy-duty tasks or industrial use.
Higher Noise Levels: Direct drive air compressors tend to be louder compared to belt drive air compressors due to the direct connection between the motor and pump, which can result in higher noise levels during operation.
Q: What are the special features of direct driven air compressors?
Noise levels close to home appliances, supporting installation inside the shop floor.
Direct drive design and compact crank case results in smaller foot print, allows for the placement of the compressor inside factory premises.
Q: What are the main types of direct driven air compressors?
Oil Lubricated Direct Drive Compressor
Direct drive compressors with oil lubrication use oil to lubricate the compressor screw element, cooling, lubricating, sealing the compression chamber, and thereby enhancing performance.
Oil lubricated direct drive compressors are usually economical compared to belt driven on maintenance and overall energy consumption.
Oil Free Direct Drive Compressor
Oil-free direct drive compressors operate without the use of oil. Here Teflon graphite special coatings are made on the screw elements to prevent leakages and resist high temperatures for 100% high quality Class 0 compressed air. They are perfect for industries that require oil-free air quality and customers who are looking for lowest total cost of ownership – maintenance intervals are much lesser compared to oil-lubricated.
Q: What applications is an oil-free direct driven air compressor suitable for?
Dental chairs.
Pharmaceutical industry.
Food processing and packaging.
Electronics production.
Ozone generation.
Printing equipment.
Fermenters.
Research facilities.
Applications that are zero tolerant to oil in compressed air.
Q: Which is better direct driven or belt drive compressor?
Q: How to operate the direct driven air compressor?
When the set maximum pressure is reached the pressure switch activates and the motor is turned off. The pressure will then decrease as the air is used until the set minimum is reached after which the pressure switch turns the motor on again.
The operator of the compressor should be well aware that during use of the compressor the motor will cycle (start and stop) under the influence of the rising or falling pressure in the tank and the motor will start without any warning.
The maximum and minimum pressures are factory set and should not be altered.
You can utilize either the direct outlet and/or the regulated outlet.
The pressure of the regulated outlet can be changed by turning the control knob. Rotate the knob clockwise to increase pressure and anti-clockwise to decrease.
Q: What benefit can I get from your direct driven air compressor?
Apart from ensuring savings due to elimination of transmission losses, our direct drive compressors offer best-in-class flow as compared to any piston compressor in the market, thereby offering higher flow per HP.
Eco Friendly and Minimum Maintenance Cost
Our direct drive compressors are assured with the lowest oil fill requirement.
Silent
The noise levels of such systems are close to screw compressors.
Compact
our compressors can fit anywhere with proper ventilation.
Reliable
our proven parts and robust materials ensure reliability.
Q: What models of potable direct driven air compressors do you have?
Q: What models of efficient direct driven air compressors do you have?
Q: Where can be direct driven air compressors used for?
Q: Is regular maintenance of the direct driven air compressor necessary?
Daily
Drain the condensation from the air receiver.
Check for air leaks.
Weekly
Remove air filter element and clean or replace as required.
Monthly
Inspect non-return valve (clean or replace as required).
Caution: ensure that air the tank is empty for this operation.
Manually test the safety valve by pulling the ring.
Three Monthly
Tighten cylinder head bolts.
Clean and check valve assembly.
One Year
Replace gaskets/ valves, piston rings if worn or damaged.
Q: Are there any safety precautions should be taken when using the direct driven air compressor?
Work Area
Workbenches should be kept tidy because cluttered benches and work areas invite accidents. Floors should be kept clean and free from rubbish. Special care should be taken if the floor is slippery due to sawdust or wax.
Work Environment
Keep the work area well lit. Do not use compressor in areas where there is a risk of explosion or fire from combustible materials, flammable liquids, e.g., paint, varnish, petrol etc or flammable gases and dust of an explosive nature.
Guard Against Electric Shock
Do not expose your compressor to rain, or use in damp or wet locations.
Use the Right Tool
Select the right tool for the job. Do not use a tool for a job for which it was not designed. Do not force a small tool to do the job of a heavy-duty tool.
Personal Safety Clothing
Do not wear loose clothing, jewellery or anything that could get caught in moving machinery.
Hair
Long hair should be tied back or contained in a protective covering.
Eye Protection
Always use protective safety goggles or safety glasses.
Ear Protection
Ear protection is advised during periods of extended operation.
Footwear
Where there is a risk of heavy objects damaging feet or if there is a risk of slipping on wet or slippery floors suitable non-slip safety footwear should be worn.
Q: How to maintain direct driven air compressors?
Always keep your compressor clean internally and externally. For oil lubricated models change the oil regularly and keep all external surfaces clean. A clean inside leads to good mechanical efficiency, a clean outside means better dissipation of heat to the circulating air.
Pressure Switch Unloader Valve
On most pressure switches (usually black in colour) there is either a button or rotary switch, which is used to turn the compressor on and off. This switch also activates the unloader valve to relief pressure in the delivery pipe and cylinder head to allow the motor to restart off load. Depress this button or turn the rotary switch from time to time to ensure that the valve is working properly and exhausting the air.
Suction Action
Gently place your hand over the air inlet filter, the change in inlet suction noise should be heard. Poor suction would suggest a block air filter or damaged valves.
Also causing excessive load onto the motor.
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