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Quick Details

  • Place of Origin: Guangdong, China (Mainland)
  • Brand Name: LANWEI
  • Model Number: RO-700L/H
  • Condition: New
  • After-sales Service Provided: Engineers available to service machinery overseas
  • Usage: water filtration
  • Technology: reverse osmosis
  • Warranty: 1 Years
  • Specialty: automatic water softener
  • Salt Rejection Rate: 99.0%
  • Source Water: River, Spring, Lake, Bolehole, Fresh Water
  • Membrane: USA Hydranautics
  • PLC: LG or Omron
  • Controller: USA Fleck
  • Specification: stainless steel material, food grade material

Packaging & Delivery

Packaging Details: standard exportation wooden cases packing.
Delivery Detail: within 15 days after accept advance payment
Product Description

Through the reverse osmosis membrane to separate the solvent solution, the removal of small particles, organic matter, bacteria, virus, the salt removal rate can reach 99.7%, the water becomes pure water.

Product Explanation


Reverse osmosis water purification machine to treat fresh water for drinking/mineral water. Our plant could make drinking water, mineral water, pure water and potable water from the water sources: Ground, spring, well, river, borehole, brackish, lake water and etc.

Capactiy: 300LPH to 100, 000LPH

Please advise your water analysis report, Product water quality standard and output capacity, we will provide proposal to you soonest.

Looking for serious buyer and long term business relationship.

1. The RO water treatment plant process/step:

Raw water - Raw water tank - Raw water booster pump - Mechanical filter (Quartz sand filter) - Activated carbon filter - Precise filter/PP sediment filter - High-pressure pump - Reverse Osmosis Assembly - Pure water tank

2. The main struction of the machine:

1). Quartz sand filter. 

2) Activated carbon filter

3). High pressure pump

4). RO Membrane assembly

5). Disinfection

Please find more information of each parts:

Quartz sand filter

The raw water is purified simple by the filter. The filter mainly removes the suspend materials, colloid and other big impurity. If pressure dispersion of the water entering and water out exceeds 10Psi(0.7kg/cm2)or the water out SDI>5, the filter need to be back flushed. Usually, the filter should be back flushed once before operation every day and also be back flushed with gas once a week.

Activated carbon filter

The active carbon is made of wood, coal, fruit shell (coconut) and other carbonaceous material through the method of chemical activation or physical activation. It has a great deal of micro-holes and huge surface, so it has very strong physical adsorption capability to adsorb the organic infecting of the water. The filter mainly removes the organic substance, chlorine, odor, chromo and etc to make the left chlorine ≤ 0.1mg/l. So as protect the RO membrane from damage by the chlorine. The active carbon should be replaced every 12 to 15 months according to the content of the chlorine mostly. Commonly, the filter should be back flushed every week.

High pressure pump

The pump supplies the pressure needed to push water through the membrane, even as the membrane rejects the passage of salt through it. Typical pressures for range from 225 to 375 psi (1.6 to 2.6 MPa). In the case of seawater, they range from 800 to 1, 180 psi (6 to 8 MPa).

Membrane assembly

The RO device removes the hydronium, organic substance, colloid, bacteria and other impurity by the method of membrane. And the water can be desalted and purified. The theory is as follows. The treated water and the untreated water are separated by the membrane; The treated water osmoses to the untreated water. There is osmotic pressure between the two. If the pressure is added to the untreated water and the pressure of the untreated water is bigger than the osmotic pressure, the water of the untreated water osmoses to the opposite position of the water. This applies the reverse osmosis technology to the desalted water. That is to say the untreated water is purified into the pure water through the RO membrane under adequate pressure. The left water which can not osmosis through the membrane contains a lot of solute and suspended substance, and it will be drained out as waste water.

The water must be pretreated before entering into the RO system, or it will bring damage to the RO membrane.

The RO system not only can be used for desalination, but also for filtering the organic substance and bacteria.

The production of water is monitored by the liquid crystal display conductivity meter & TDS meter.

Packaging & Shipping

Our Services

1.The guarantee of our machines is at least two years, also we will send 3% of sales value as spare parts along with the machines free of charge, the parts will be enough for at least 3 years for the normal operation of machines.

2.we can train your engineers in our factory free of charge. It means you can send your engineers to our factory to study and training, we have rich experiences for the training, it is the good way to make sure that you can operate and maintain our machines successfully and for long term normal use.

3, we will offer you detail manual books for our machines, also we will make one Video CD to show you how to install and maintain the machines, the CD is the movie for the machines, it will be the great references for you to maintain the machines for the long time.

4.another way is that we can send our engineers to your factory to install the machines and train your engineers, we think it is the best way to help you operate and maintain the machines. We have been doing the install jobs for our overseas customers for many years.

In this way you need to pay for the travel costs for our engineers, because our initial quotes don’t include the travel costs.

5. All of the electrical parts in our machines are CE or TUV approved.

We can offer you UL or CUL/CSA approved parts if you need for the North American markets.

The good electrical parts are the guarantee for the good quality for our machines.

Company Information

 DongGuan LANWEI Industry Co.,Ltd is a combined group company located in Dongguan city, co-operating with dozens of manufacturers, we have more than 15years experiences on beverage/water machinery and plastic machines.

We devote ourselves to the development, research and production of plastic machine and liquid food and beverage packing andfilling industry and automatic blow molding machine in China.

Our Main products including: Mineral water and purified water producing line. Carbonated beverage producing line. 3 gallons & 5gallons producing line (5-10L bottle & 20L bottle). Flat and tube UHT device, and CIP system. All the products are sold well in every province and city of the whole country and also exported to about twenty countries and areas with strong technical capability, advanced equipment, scientific management system and perfect after-sales service.

Our Main Products Are:

1000-15000bph water productione line

1000-15000bph juice production complete line

1000-15000bph carbonated drink production line

1000-15000bph wine bottling line

1000-9000tin cans/hr

5gallon bottle filling line

Stand alone machines also available

Welcome Customers Visit Our Company.



What Services can we LANWEI company Supply?

1. Turnkey Plant for the Bottled Water Filling Line both for Small PET Bottle (0.25L-2.5L ) and Gal Bottle (3L-6Gal)

Layout design / related machine supply / Installation & training / Raw Material (Label /caps / etc Logo Design)

2. Reverse Osmosis / Ultrafiltration Water Purification System for Domestic & Industry use (Max Cap: 200Ton/h)

ODM water purification design according to the client’s raw water report then can 100% ensure to meet your demand

3. Monobloc Filling Machine for Gallon / PET Bottle

Conveyor system /inlet start wheel / caps screwing gear ODM design according to clients bottle/caps samples

Delivery time:
25-30 working days upon deposit and approval to the bottle drawing.
For machine:30%T/T deposit within five days after the contract is signed against invoice of the seller. The balance of 70%T/T will be paid before shipment.
We response for one year warranty for the machine, however, it without any human conduct. And provide one-year free spare part for client.  And sendengineer to client's company, help install the machine, teaching their staff operate the machine and also, we do have a private school which help our client sending their staff tochina, help them training.
After sales service:
The buyer pays travel expenses; hotels, airfares, meals and ground transportation and any other expenses related to installation and training at customers facility.

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