Production of granular plastic materials can generate(mainly during start-up and shut-down) faulty fractions in the form of excess length particles . These outsizes can cause trouble in subsequent plastics processing, in particular during extrusion, and must therefore be removed from the granular material.Therefore, Lunarmechhas developed its extensive range of Classifiers to effectively address this issue.

Our Methodology

• To cause the excess length particles to slip flat across the screen apertures, a directional vibration is imparted to the screen deck, using gravitation to help convey the material.


• A blank deck is located in the feeding area for smoothing the screen feed and levelling the excess length particles. Perforated plates with a smooth surface and rows of holes staggered in the direction of conveyance are used as screen decks.


• Our machines have a slightly inclined screen and vibrating motors mounted laterally at a small angle of incidence. This enables screening to take place at a very low vertical acceleration, ensuring flat conveyance of excess length particles.


• The vibrating motor can be pivoted through a given angle for optimum adaptation to the fed rate. The screening efficiency depends on the ratio of width of hole and particle size.

The Lunarmech Advantage

• 2-deck versions available for additional screening of fine particles


• Stringent clean ability and ease of operation requirements met


• The perforated screen plate is manufactured from a sheet plate and therefore has no fissures or sharp-edged corners which could impede cleaning


• The lower screen frame required in the two-deck version is also designed as a screen cage


• Machines with screen drawers and pneumatic tensioning are also available

• Lunarmechhas an international presence and a proven track record in the manufacture of high-quality Polymer Valves.


• Whether for flexibility of design and construction or for unrivalled handling of vacuum, high pressures, temperatures, viscosities as well as different media, Lunarmechvalves have established themselves as the undisputed choice among all polymer valves, commanding industry-wide recognition.


• Lunarmechprides itself on delivering a complete, fully-tested and fully-customized package to the customer. No empty boast this, the tangible-and unique- benefit of choosing theLunarmech experience is that valves can be customized according to the customers needs based on a large variety of end applications:

• Material (based on priority)
  
  
  
  • For optimising polymer flow-cast iron valves
  
  
  • For ensuring material integrity-forged or welded constructions
  
  
  
  


• Seats (based on start-up conditions)
  
  
  
  • Valves provided with/without replaceable seats
  
  
  
  


• High Pressure Sealing (based on pressure)
  
  
  
  • Different grades of stellites
  
  
  • Especially tapered seat to achieve a tangential zero force seal
  
  
  
  


• For Vacuum tightness
  
  
  
  • Special Helicoflex sealing ring
  
  
  
  


• Performance and Seat Testing (based on conditions of operation)
  
  
  
  • High/Low Temperatures
  
  
  • High Pressure or Vacuum
  
  
  • With Helium/Nitrogen/Water
  
  
  
  

The Lunarmech Advantage

• Unrivalled customization


• Fool proof, impeccable inspection and testing procedures


• Elimination of dead and slow spaces


• Avoiding impurities


• Reducing residual times

In the pelletizing process, in many cases the pellet cutting operation occurs underwater- in particular with the USG strand pelletizing and SPHERO underwater pelletizing systems. For these applications, Lunarmechhas developed the following types of pellet dryers.

• AERO impact dryers


• CENTRO centrifugal dryers

PRINCIPLE OF PELLET DRYING

The drying operation as part of the pelletizing process consists of 3 individual steps

1. Pre-dewatering: up to 95% of process water is removed by gravitational force


2. Primary drying: water drops adhering to the pellets are largely removed through airflow or mechanical movement


3. Final drying: The residual heat of the pellets is used to evaporate the remaining surface moisture

THE Lunarmech ADVANTAGE

• Impartial advice on the optimal drying solution as per customer needs


• All machine parts coming into contact with the product are corrosion resistant


• Wide range of operating capacities from small quantities up to 22000 kg/hr.


• For virgin polymers and compounds; cylindrical and spherical pellets; products with any fillers or reinforcements; standard size and micro pellets

For more information on our Dryers, contact us now to speak to one of our technical consultants

• Lunarmechwith its unique position in the field of Polymer production for Industrial applications, has developed a complete range of Polymer Filtration systems (OFS) meaning on line filtration systems, suitable for applications in Polymer continues plants, film plant & POY/FDY spinning plants.


• OFS systems have been re-invented byLunarmechfor their adaptability, compactness, higher outputs/m2, rugged construction using world-class grade of special steel, gland packing to withstand high pressure and specially developed insulation material ensuring minimal heat loss has been the merit in favour for use in variety of end applications.


• Lunarmechhas been in this area of expertise and manufacturing for over two decades and has acquired a considerable share of the local market as well as a very competitive one in the international market. Customers locally in all sectors of Polymer production, rely on the design flexibility, quality of the systems matching every international standard.


• Lunarmechs position of strength in this sector by itself is the name to reckon with locally and internationally, hence it commands a very special status as The solution providers to the industry at large.

Our Value Proposition

• Complete Customized solutions with optimised designs and ease of handling and operations


• Impeccable after sales service and delivery of spare parts, along with the services for import substitution to the entire polymer industry locally and abroad


• Full range of OFS on offer, be it horizontal or vertical, from lab-sized equipment to large sized duplex vertical systems, for the entire spectrum of the polymer industry


• 100% material integrity


• High pressure sealing systems


• Fool proof, impeccable inspection and testing procedures


• Elimination of dead and slow spaces


• Avoiding impurities


• Reducing residual times

• Pelletizing is a very important process in the production of polymer pellet production, which involves converting molten polymer into pellets.


• The conversion process may involve water, air or any other media as a cooling intermediate.


• Allowance is made for the resistance time and cutting the polymer according to its Vicat point.


• The process is accomplished by means of a mechanical device and the polymer is cut into globular or cylindrical pellets, based on the process and cutting appliance adopted.

Pelletizing today is applicable right from the lab to large industrial conversions in any size and process be it virgin polymers, compounds, master batches or re-cycling process in the polymer industry.

Lunarmech, along with its associates and joint venture partners, has pride of place in this industry, combining the highest quality with competitive pricing, resulting in lower investment and, due to superior quality, lower maintenance costs.

This allows our buyers to strike the right balance between project cost, quality of the end product and maintenance costs on a year to year basis, thus allowing the end users a clean edge over their competition.

The Lunarmech Advantage

Lunarmechhas been a front runner in this area of application locally and overseas with three decades of expertise in delivering high-tech pelletizing solutions for variety of applications covering a large spectrum of the Polymer Industry.
Lunarmechadvantages are:

• Manufacture using corrosion-resistant steels


• Cutting rotors are made of chrome steel, SS, Stellites and TC-edged for operations where wear-resistance is required


• Pelletizers are rugged in construction, easily can be housed at aligned with upstream equipment and are conducive for most optimal pelletizing polymers like PA6, PET, ABS, HDPE, LDPE, PP, Glass Filled/Unfilled


• Systems can be operated by variable motors or by frequency drives


• Cost effective therefore, economic to run


• Reliable simple and robust


• Maintenance-friendly feed rolls and the cutting tools are easily accessed, cleaned and quickly replaceable

Our state-of-the-art engineering department equipped with the latest CNC Machines has turned Lunarmech into a unique specialist in design and manufacturing of the complete Washing Line Systems.

Washing and separator systems- Components and Working

• A sink float tank equipped with a hydro cyclone that separates the light floating polyolefin from the heavier materials(mainly PET).


• A washing machine with both fixed and rotating knives that create agitation which separates dirt and adhesives from the scrap in cold water.


• The second sink float tank includes a hydro cyclone that carries out the final separation of the remaining glue particles and polyolefinsfrom the lighter materials released during the washing process.


• The centrifuge performs the final process that allows the product to have 2-3% residual moisture.

The Lunarmech advantage

• Use of cold water Usual chemical additives like detergent or soda are not used.


• The Lunarmech assurance: no chemical additives and very few PPM fibre/paper remaining in the final product.


• The Lunarmech technology is suitable for other recyclable scrap material such as milk jugs, ground blocks

LunarmechExtrusion heads/ Die heads are associated systems applicable to industries involved in the production of Polymers, films and profiles for industrial use.

Lunarmechis a niche producer of extrusion heads/ die heads applicable in the field of polymer production, be it in the field of extruders to produce plastic compounds, master batches or virgin polymers by way small strand Pelletizing lines or large sized continuous polymer production plants using high speed pellet production lines.

However, Lunarmechdoes not produce or manufacture film extrusion or filament production web Die heads.

Lunarmechwith its in house design and manufacturing capabilities and access to technology, is capable of delivering systems as components or complete integrated systems with pelletizing equipments.

Lunarmechssystems are designed around world class updated specifications to suit any requirements that a customer demands, from world class applicable steels and are suited for electrical or medium heated, with or without integrated shut-off valves.

Lunarmechhas been a marked supplier of such systems for the local polymer industry and overseas producers.

• Electric/Liquid/Steam heating, depending on the system


• Absolutely uniform melt distribution


• Wear protection on die plates(for abrasive products)


• Swivel joints for quick access to extruder screw( in WSG systems)


• Rheologically optimized product channels(in M-USG systems)


• Scraper device for efficient production start-up(in M-USG systems)


• Fast change of cutting head/die-plate


• Die head widths ranging from 100mm to 600mm


• Optimized flow channels based on new developed calculation models


• Easy cleaning


• Very good handling

For more information on our Die Heads, contact us now to speak to one of our technical consultants.