About Us

Henan LIMING Heavy Industry Science and Technology Co. LTD which mainly manufacture large and medium-sized crushing and grinding equipments was founded in 1987. It is a modern joint-stock corporation with research, manufacturing and sales together. The Headquarter is located in HI-TECH Industry Development Zone of Zhengzhou and covers 80000 m ². Another workshop in Shangjie Industry Park covers 67000 m ². Over the more than 30 years, our company adheres to modern scientific management system, precision manufacturing, pioneering and innovation. Now LIMING has become the leader in domestic and oversea machinery manufacturing industry.

120

million

cubic meters

Industrial chain production base

70

national patents

689sets

national patents

170

Equipment service country

Company Culture

core values of the company

Create Value

Share Value

Observe Order

Respect Value

Service philosophy

Religious, fine, tight, and harmonious

LIMING spirit

Standardization, value, serialization, and differentiation will always exceed our contract

Brand Concept

Create and promote civilization, refine and interpret brilliantly

Business philosophy

Religious, meticulous, rigorous, and harmonious work

Our Global Footprint

Case Scene

Vacuum Filtration - Suction Filtering Guide Products [2019]

Vacuum filtration (or suction filtration) is an indispensable technique for distillation, extraction, and purification. Compared with traditional, gravity-assisted filtration, adding a vacuum to your system greatly increases speed and efficiency in your laboratory. One of the most common uses is

Different Types of Filtration Equipment in Labs - USA Lab

04/08/2020  One of the most common types of filtration equipment used in laboratories is a Buchner funnel. A Buchner funnel is used as a means to speed up the gravity filtration process through a vacuum, which is located under the filter in the flask. This vacuum forces the liquid mixture through the filter more quickly.

What equipment do I need to perform a vacuum filtration ...

17/07/2018  Filtration under vacuum, also known as Büchner filtration, is commonly used to isolate the solid precipitate from a solution. This technique is used in syntheses, for example when a reaction has yielded a solid, or in analyses including gravimetric analysis of suspended solids.

vacuum filtration equipment used in labs

vacuum filtration equipment used in labs; Buy used lab equipment. Over 4000 items in stock. Quality, dependable second hand laboratory equipment for sale. Save 40% to 70%, help the environment by buying >Get Price; BAMKO-SURPLUS . serving the petrochemical industry in surplus sales and investment recovery. Contact: BAMKO-SURPLUS PROCESS EQUIPMENT LLC Phone:

Laboratory Filtration Vacuum Pump Overview Buying

14/02/2020  Sterlitech is a distributor of Rocker Scientific Co., Ltd. products. Established in 2007, Rocker provides a variety of professional vacuum filtration solutions for laboratory and industrial customers in the fields of food, water, micro-organisms testing, molecular biology lab and purification.

Buy Laboratory Vacuum Filtration Equipments Online ...

The filtration equipment used for this procedure consists of an oil-free vacuum pump, filter apparatus, filter flask and often a filtration manifold. The membrane filtration technique utilizes vacuum filtration and is an accepted technique for testing fluid samples for contamination.

How to choose the best vacuum pump for your lab

11/09/2020  Vacuum pumps are a versatile piece of laboratory equipment for suctioning via negative pressure. They are routinely used in biological sciences for filtration, distillation and concentration of volatile solvents, solid phase extraction, freeze drying, and more. Even though vacuum pumps share a common function, there are many considerations to take into account when choosing a new pump.

Fastest Vacuum Filtration Equipment DrainDroyd Filtration

02/04/2020  DrainDroyd vacuum filtration equipment makes high-throughput wax removal from winterized ethanol solutions possible as opposed to traditional gravity filtering products. When you choose DrainDroyd, you eliminate frustrating restrictions such as many hours of labor with small scale Büchner funnels and glass breakage. Our innovative vacuum filtration equipment also reduces the

What equipment do I need to perform a vacuum

17/07/2018  Filtration under vacuum, also known as Büchner filtration, is commonly used to isolate the solid precipitate from a solution. This technique is used in syntheses, for example when a reaction has yielded a solid, or in analyses including gravimetric analysis of suspended solids.. Although performing the filtration is simple, several pieces of equipment

Laboratory Filtration Vacuum Pump Overview Buying

14/02/2020  However, if you do use vacuum filtration, then select a pump capable of achieving the deepest vacuum (lowest absolute pressure). Our Recommendation: R ocker 410 (for aqueous solution) Product Features: Strong m ax v acuum, oil free, i

Buy Laboratory Vacuum Filtration Equipments Online ...

Vacuum filtration is a laboratory procedure involving the collection of particulate from a suspension usually a bacteria or precipitate. The suspension passes through filter paper of a known pore size which retains the bacteria or particles. The filtration equipment used for this procedure consists of an oil-free vacuum pump, filter apparatus, filter flask and often a filtration manifold. The ...

Laboratory Vacuum and Pressure Filter - 911 Metallurgist

06/12/2015  The use of proper size and type filters with required vacuum equipment will simply and efficiently eliminate many of the difficulties. Laboratory Vacuum Filter. Laboratory Vacuum Filter is available for all sizes of laboratories and continuous pilot test plants. Necessary units for any capacity laboratory vacuum system are available and arrangements for individual or interdependent vacuum ...

11 Filtration Examples in Daily Life – StudiousGuy

It is the most commonly used equipment for vacuum filtration in the lab. Traditionally the Büchner funnel is made up of porcelain, but glass and plastic funnels can also be found in the lab. The top of the funnel is a cylinder with a fritted glass disc/perforated plate separating it from the funnel. The process of filtration in the Büchner funnel is quite similar to the Hirsch funnel or a ...

Vacuum Filtration - Yale University

Learning Objective: Vacuum filtration is a procedure that enables the separation of a solid from a liquid. In this procedure you will learn how to use the equipment involved in a vacuum filtration. »Click here for video. intro »Play: Students may wish to wear gloves when working with chemicals. Vacuum filtration is generally used after you have crystallized a solid from a solvent. Usually ...

Pressure and Vacuum Systems Office of Environmental ...

Use use of a back-up temperature controller capable of shutting the system down. Inspect and test all pressure equipment at intervals determined by the severity of the equipment's usage. Perform a visual inspection before each use. Perform hydrostatic testing before equipment is placed in initial service. Perform hydrostatic testing every ten ...

lab equipment and uses - Mr. Kretsos

COMMONLY ENCOUNTERED EQUIPMENT IN THE CHEMISTRY LABORATORY. NAME PICTURE USE: beaker Used to hold and heat liquids. Multipurpose and essential in the lab. brushes Used to easily clean the inside of a test tubes and other glassware. Buchner funnel Used with vacuum flask for performing vacuum filtration. Bunsen burner Used for heating and exposing items to flame. burette Used

What is the difference between vacuum filtration and ...

Do not use vacuum filtration to filter a solid from a liquid if it is the liquid that you want, and if the liquid is low boiling. Any solvent which boils at about 125 degrees or lower will boil off under the reduced pressure in the vacuum flask. Filtration under vacuum using a Buchner funnel is used when you want to isolate the precipitate (the solid) for further work or analysis. The ...

Vacuum Filtration Filtration Services

Filtration Service manufactures and designs a range of vacuum filtration equipment for use in different process industries. Filtration Services have been providing expert filtration advice for over 20 years, and are considered leaders in vacuum filtration due to being responsible for various improvements and developments within the industry. Filtration Services provide the most sophisticated ...

What equipment do I need to perform a vacuum

17/07/2018  Filtration under vacuum, also known as Büchner filtration, is commonly used to isolate the solid precipitate from a solution. This technique is used in syntheses, for example when a reaction has yielded a solid, or in analyses including gravimetric analysis of suspended solids.. Although performing the filtration is simple, several pieces of equipment

Vacuum Pumps for Lab Industry - Lab Equipment and Lab ...

• Use in the lab or in the field (with optional adapter) Certification: CE marked Dr. Blue says For convenient filtrations where you can always rely on the necessary vacuum, the 12911151 is ideal. 11533485 is not recommended for powerful acidic or other chemical vapours. For a chemical-duty model please see page 6 Cat. No 11533485 12911151

Guide: Use of Vacuum Pumps in a Laboratory - Provac

24/05/2019  Laboratory vacuum pumps are adaptable tools which can help many different engineers and research scientists. Labs routinely use laboratory vacuum pumps in order to do the following: Provide suction that drives the filtration or aspiration of suspended or liquid samples Control or induce solvent evaporation through the reduction of vapor pressure, like in concentrators, gel dryers, rotary ...

Laboratory Vacuum and Pressure Filter - 911 Metallurgist

06/12/2015  The use of proper size and type filters with required vacuum equipment will simply and efficiently eliminate many of the difficulties. Laboratory Vacuum Filter. Laboratory Vacuum Filter is available for all sizes of laboratories and continuous pilot test plants. Necessary units for any capacity laboratory vacuum system are available and arrangements for individual or interdependent vacuum ...

11 Filtration Examples in Daily Life – StudiousGuy

It is the most commonly used equipment for vacuum filtration in the lab. Traditionally the Büchner funnel is made up of porcelain, but glass and plastic funnels can also be found in the lab. The top of the funnel is a cylinder with a fritted glass disc/perforated plate separating it from the funnel. The process of filtration in the Büchner funnel is quite similar to the Hirsch funnel or a ...

Vacuum Filtration - Yale University

Learning Objective: Vacuum filtration is a procedure that enables the separation of a solid from a liquid. In this procedure you will learn how to use the equipment involved in a vacuum filtration. »Click here for video. intro »Play: Students may wish to wear gloves when working with chemicals. Vacuum filtration is generally used after you have crystallized a solid from a solvent. Usually ...

ORGANIC LABORATORY TECHNIQUES 3 3.1 FILTRATION METHODS

If it’s a fine solid, regular filtration might be very slow, so use vacuum filtration. 5. Will unwanted crystallisation occur in the filter funnel ? If yes, use hot filtration. a. The filter paper First, make sure you use the appropriate size filter paper. This is most important for vacuum filtration where the paper should smaller in diameter than the base of Buchner or Hirsch funnel (but it ...

lab equipment and uses - Mr. Kretsos

COMMONLY ENCOUNTERED EQUIPMENT IN THE CHEMISTRY LABORATORY. NAME PICTURE USE: beaker Used to hold and heat liquids. Multipurpose and essential in the lab. brushes Used to easily clean the inside of a test tubes and other glassware. Buchner funnel Used with vacuum flask for performing vacuum filtration. Bunsen burner Used for heating and exposing items to flame. burette Used

Vacuum Filtration Filtration Services

Filtration Service manufactures and designs a range of vacuum filtration equipment for use in different process industries. Filtration Services have been providing expert filtration advice for over 20 years, and are considered leaders in vacuum filtration due to being responsible for various improvements and developments within the industry. Filtration Services provide the most sophisticated ...

Pressure and Vacuum Systems Office of Environmental ...

Use use of a back-up temperature controller capable of shutting the system down. Inspect and test all pressure equipment at intervals determined by the severity of the equipment's usage. Perform a visual inspection before each use. Perform hydrostatic testing before equipment is placed in initial service. Perform hydrostatic testing every ten ...

Guide: Use of Vacuum Pumps in a Laboratory - Provac

24/05/2019  Laboratory vacuum pumps are adaptable tools which can help many different engineers and research scientists. Labs routinely use laboratory vacuum pumps in order to do the following: Provide suction that drives the filtration or aspiration of suspended or liquid samples Control or induce solvent evaporation through the reduction of vapor pressure, like in concentrators, gel dryers, rotary ...

Vacuum Pumps for Lab Industry - Lab Equipment and Lab ...

• Use in the lab or in the field (with optional adapter) Certification: CE marked Dr. Blue says For convenient filtrations where you can always rely on the necessary vacuum, the 12911151 is ideal. 11533485 is not recommended for powerful acidic or other chemical vapours. For a chemical-duty model please see page 6 Cat. No 11533485 12911151

Laboratory Filtration Systems - Filter Holders and

Reagents, Chemicals and Labware > Lab Filtration > Filter Holders and Accessories > Vacuum Equipment. C10732Designed for laboratories that test a few samples per day. The simple combination of a hand vacuum pump and a Sterifil system can be bench-operated or used as a portable system.

Laboratory Vacuum and Pressure Filter - 911 Metallurgist

06/12/2015  The use of proper size and type filters with required vacuum equipment will simply and efficiently eliminate many of the difficulties. Laboratory Vacuum Filter. Laboratory Vacuum Filter is available for all sizes of laboratories and continuous pilot test plants. Necessary units for any capacity laboratory vacuum system are available and arrangements for individual or interdependent vacuum ...

Filtr8 Lab Filtration Kits with Vacuum Pumps- Laboratory ...

Filtr8 is a compact bench top electric lab vacuum filtration pump perfectly suited for hobbyists, students, and schools. Small labs without a centralized vacuum system will also benefit in increased productivity. Simply plug it to an electrical outlet, connect the tubing between the pump and flask and you are ready. Finally, to start filtering, just flip the switch and you are filtering. Shop our

Vacuum Pumps, New and Used Laboratory Vacuum

Thomas Model 2750TGH Pump - New in Box. Price: $495.00. Condition: New. Agilent MS40+ High Vacuum Pump with Agilent G6011A Quiet Cover MS. Price: $3,950.00. Condition: Used. Edwards 30 E2M30 Rotary Vane Two Stage Vacuum Pump. Price: Please Inquire. Condition: Used.

ORGANIC LABORATORY TECHNIQUES 3 3.1 FILTRATION METHODS

If it’s a fine solid, regular filtration might be very slow, so use vacuum filtration. 5. Will unwanted crystallisation occur in the filter funnel ? If yes, use hot filtration. a. The filter paper First, make sure you use the appropriate size filter paper. This is most important for vacuum filtration where the paper should smaller in diameter than the base of Buchner or Hirsch funnel (but it ...

Industrial Vacuum Filtration Systems Parts

Industrial Filtration Systems. Compositech Products Manufacturing, Inc. has been providing industrial filtration systems and equipment for more than 20 years to industry and municipalities in the US and globally. We are dedicated to equipping our customers with state-of-the-art technologies for improved vacuum filtration performance and ...

Different Types of Vacuum Filtration and Their Methods

This type of vacuum filtration changes the physical characteristic of a vapour or gas. They are used to adsorb toxic mercury vapours and then exhaust clean air into the surrounding environment. Mechanical Filtration. In this type of filtration, particles are collected and retained in a physical barrier. Usually, it is with a series of cloth, paper filters and/or polyethylene that treat the ...

Why isn't pressure filtration popular compared to vacuum ...

09/07/2019  In research labs while many applications may need "vacuum" the particular requirements may differ widely so that locally producing the "right" kind of underpressure is better: e.g. evacuating dewars or IR detectors needs extremely low pressure but almost no flow whereas filtration needs less underpressure but higher flow and the ability to deal with a contaminated gas stream.