Category Archives: News

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Gibson Centri Tech Limited – General Metal Liner (Babbitt Machine)

The GML machines are used by leading companies world wide for the lining of all types of bearings including; rolling mill, power generation and tanker stern tubes. These machines are specifically designed to safely and economically cat metal (Babbitt) into ferrous and non-ferrous housing in the form of bushes, bearings and half shells and shaped shells.

Main Features

  • Dual face plate
  • Used in the Production of White Metal of Babbitt Bearings
  • Programmable lining cycles can be provided to suit customers requirementsGML 

For more information on this Centrifugal Casting Machine, contact our Sales Team:

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Gibson Centri Tech Limited would like to wish all of our Customers in the USA a very Happy 4th of July.


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Mould Coating for Centrifugal Casting

Centrifugal Casting is the spraying of the inside of the mould with a coating. This performs several functions including protecting the mould, aiding extraction and providing even chilling of the castings. For these reasons suitable mould coating material and spray equipment should be used. 

Gibson Centri Tech Limited produces two types of mould coatings designed for centrifugal casting applications to assist traction on the coated surface, allowing an even flow of metal during the casting process, controlling cooling rates and enabling ease of extraction of the casting.

GCT 300/3 Silica Based mould coating –  supplied in 4 x 300kg Drums

This coating is suitable for:

Most steel alloys

Cast iron

All non ferrous metals

TriGex A Alumina based mould coating – supplied in 5 x 40KG Drums or 250Kg Drums 

This coating is suitable for:

Steel Alloys

All non ferrous metals

All ferrous metals

For more information on our Mould coatings contact Tracey Anne in our Sales and Marketing Department:

Mould being Sprayed

Mould being Sprayed

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Gibson Centri Tech Limited – Spray Equipment

One of the vital areas to consider when centrifugal casting is the spraying of the inside of the mould with a coating. This performs several functions including protecting your mould, aiding extraction and providing even chilling of your casting. For these reasons a suitable mould coating material and spray equipment should be used. 

10 litre or 40 litre feed containers with hand spray gun supplied for up to 2.0 metre mould length. 

Gibson can also supply mould coating materials both alumina and silica based. 

The most cost effective method of applying coating is hand spraying and in many cases this is acceptable. Depending on the finish and consistency you wish to achieve from your casting, an automated spraying system may be required. For applications like cylinder liners and thin wall castings, automatic spraying would be used to give consistent and repeatable levels of coating. this can also help to reduce machining allowances. 

For more information on spray equipment, contact Tracey Anne in our Sales Department:

Spray Equipment

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SHPP Range of Centrifugal Casting Machines

The SHHP machines, originally designed for pipe production, are also ideal for the manufacture of cylinder liners for use with internal combustion engines. The machines are available in a range of sizes to produce both pipes and most types of cylinder liners wither with profile or plain Cylindrical castings. They have the advantage of flexibility, relatively low cost, simplicity and ease of maintenance. 

The SHHP models evolved from the Gyra Caster range of Horizontal Centrifugal Casting Machines. These models were initially developed for the automatic production of rainwater and soil pipes. They soon became popular with Cylinder Liner producers who wished to produce plain liners in tube form, up to 2000mm long. Dedicated variants specifically for Cylinder Liner production have been developed. One of the benefits has been consistent production with the variables controlled with mould temperature monitoring and multi manifold water cooling. The machine is controlled from a central PLC system, which can include the options of process data collection. 

Alternatively the less sophisticated Gyra  Caster ‘R’ series is available with lower levels of automation applications for these models including sleeve, rolls, alloy tubes and pipes. The ‘A’ series Gyra Caster is a versatile fully adjustable machine with models available exceeding 25 tonne Capacity.

SHPP1 Works a copy


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We are very pleased to announce that we will be exhibiting at CASTEXPO Atlanta,Georgia on 27th – 30th April 2019. Our Booth number is 1724.



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Anikros Istanbul Turkey – 25th – 27th October 2018

We are very pleased to announce that we will be exhibiting at the Anikros (Istanbul, Turkey) Exhibition 25th – 27th October 2018.


Ankiros 2018

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Other Advantages of Centrifugal Casting

The practice of Centrifugal casting, involves using a centrifugal force, the force when a body is subject to a high velocity spinning action to exert pressure onto molten metal as it is poured into a die, this method has a number of advantages over traditional static die-casting methods.

Other Advantages of Centrifugal Casting are: 

Reduction of Equipment Cost

  • Centrifugal Casting offers a substantial saving on capital equipment when compared to forged products.


Reduction of Manufacturing Costs

  • The uniformity resulting from the centrifugal casting process means that machining time and material waste are significantly reduced. Blowholes, sand residue, hard spots, cavities and porosity are virtually eliminated. 


Extensive Life

  • Due to the finer grain and denser structure of parts with Centrifugal there is an increased usage life, greater endurance and impact without fracturing.


Fewer Castoffs

  • The force used to distribute the molten metal as it is poured is so strong it displaces the lighter oxides and impurities to the centre of the hollow cylinder. It is then easy to remove these impurities. 



  • The Centrifugal process allows economical production of a wide range of sizes, shapes and qualities.

In short centrifugal casting results in longer life, reduced rejects, reduction of manufacturing costs and production flexibility.



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Turning Our Experience to Your Advantage

Gibson Centri Tech Ltd is recognised as one of the world’s Leading exponents of Centrifugal Casting Technology. With more that 30 years experience, the company has remained at the forefront of developments in the design and manufacture of Centrifugal Casting systems.

 Gibson’s services can include process and application selection, preparation of new plant and workshop layouts, project management, equipment installation, technical training and “know how” transfer.

The size of castings which Gibson’s machines manufacture range from 2cm up to several metres in diameter. The weight of the castings produced can be from a few grams to many tons. Products can range from miniature rings to 30 tonne rolls or sleeves for the steel industry. Most alloys can be cast using the centrifugal process, for instance Gibson Centri Tech provides equipment to cast bi metal double alloy steel rolls also a wide range of ferrous and non ferrous alloys. Centrifugal casting process is usually ideal for producing cylindrical castings but can also be utilised to cast other shapes.

Beginning with the careful evaluation of customers requirements, Gibson Centri Tech Limited will select the most efficient centrifugal casting equipment and process. Every stage of manufacture is under the company’s complete control and precise dimensional accuracy is assured. Prior to delivery, each machine is assembled and workshop tested to the most rigorous standards. Gibson Centri Tech’s extensive experience in Project management and commissioning ensures that every aspect of the scheme is coordinated to meet production deadlines and all the necessary performance criteria.