Wednesday, September 30, 2015

Roll Equipments Used For Making Smooth Surface

Different equipments are used for constructing highways and making leveled surface. For constructing road, Roll compactor is used which is very important for compaction process. Due to its process, road quality becomes good. These equipments must be handled very carefully.

What is the purpose of compactors?

Compactor is a machine used in constructing road and removing the waste material through compaction process. Roll compactor is basically used by home owners and businessman. Compactor can take different shape and size means it is very variable. Different types of compactors are used for different things like bulldozer or also called landfill compactor equipment removes and drives onto waste, also it collect waste materials through plates from different areas. Compactors are operated hydraulically and thus it is very easy to operate it. It also used for picking up the trashed cars, etc. Roll compactors are used for reducing the waste through compaction and compression process.



How compactors processed in making road?

Roller compactors play a very big part in the compaction process. It is the first that many constructors used for gripping the soil. The drum roller compactor is used for compressing the soil level so that road can be constructed and it makes the surface level equal and thus ground become even, providing maximum effectiveness. Next graders are used for making the road base and it is compacted using roll drums. The last step is making the pitch level of the road using paver that makes the surface smooth. The pitch level is compacted by roll drum and thus, the road is ready for vehicles.

Different types of machineries used in construction

There are mostly two pharmaceutical machinery are used for constructing road first is pedestrian roll and second is smooth rolls that give finishing roads. It basically used vehicle weight for compression and compaction of different materials. Some machinery consists of heavy drums and large size of wheels that make the surface level smooth and equal.

Find different varieties and designs of compactor devices

Roller compactor comes in different designs, colors, sizes, weights, etc depending on the surface compaction. The pedestrian machinery is used for constructing roads for walking people. In construction of it, many workers are required, which pushes or pull the machine when material compresses and the machine moves above the surface. These types of machine are either automatically operated by power or it consists of an engine which is filled either by gas or diesel. Different pharmaceutical machinery is reverse or forward plate compactor, etc.

Grab the benefits of using machinery in pharmaceutical industry

Smooth pharmaceutical machinery are operated through power or by diesel engine in which the worker can sit on the seat and operate it from there and thus it does not require laborers for pushing or pulling the machine. It consists of different types of drum that give finishing smoothness like single drum or vibrating drum, etc. thus, these machineries are used by many renowned companies for construction.

Wednesday, June 24, 2015

Tablet Press Machine - Work and Application

What is a press? Press is a machine that presses any material into a specific design, shape and size. It has dies and punches. The die gives the specific design (shape) and punch presses to give size to the product. Press has a very wide field of application. One of them is pharmaceutical industry.

Press Machine in Pharmaceutical Industry-

Press machines are used in the pharmaceutical industry to make tablets. Press machines can be used to manufacture tablets of drugs. The mechanical device that compresses powder into tablet of uniform weight and size is known as press machine. A tablet machine can produce about 250000 tablets an hour.

How to form a tablet?

To form a tablet, a fine powdered material of pre determined amount must be poured into the cavity formed by two punches and die. After this the punches must be press against each other with a great force to fuse the powdered material.
Tablet Press Machine


Working of Tablet Press Machine-

The tablet press machine is also known as Tablet Machine. Since the principle of compression is used by the machine to make tablets, the machine is also called as Tablet Compression Machine. Operation of the tablet press machine is as follows-

First of all the bottom punch moves down the die i.e. lowered upto a depth. The fine powdered material is fed into the cavity by a lead screw and the hopper charger. The amount of powder is equal to or may be less than the depth of the bottom punch. If the level of the powder increases then a scrapper is provided which removes extra amount of material. Once the feeding of powdered material is done the upper comes in contact with the powder. The upper punch covers the die.

The next operation is the compression operation. The large force that needs to be applied to compress the material inside the die is done by the high pressure compression rolls (rollers). The force the powdered material to fuse together into tablet.

After compression operation is done the bottom punch is raised above to eject out the tablet. In other words it’s just a spill off process.

Types of Tablet Press Machines-
The development of the machine industry has led to different types of tablet machines. They are classified into two categories. They are Single Punch Tablet Machines and Rotary Tablet Press Machines.

In order to increase the production and minimise the time required to manufacture tablets rotating tablet press were invented. The high speed tablet press machines today are rotary tablet press. They have a rotating turret comprising of a number of pumches. As the turret rotates the punches come in contact with cams that control their vertical position. The rotation, the position of dies and punches are easily customised depending upon the requirements of the tablet size and shape.

Hence the tablets that we come across in our day to day lives are manufactured by simple process of compression by "Tablet Press Machines". Tablets may be of anything like drug or any other material; they are manufactured in the same simple way.