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Kerstbal Christmas ball Extrusion blow molding machine DKB-2.5LD

Christmas ball, it is Kerstbal in Dutch,  BOLAS DE NAVIDAD in Spanish, BOULES DE NOËL in French, WEIHNACHTSKUGELN in German, ЕЛОЧНЫЕ ШАРЫ in Russia.Usually,  it is a ball-shaped Christmas decoration for hanging on a tree.

This christmas ball blow molding machine is also available for Plastic Balls In Concrete Construction.plastic-balls-in-concreteThe use of plastic balls can reduce the use of concrete slabs by up to 30%, while reducing carbon dioxide emissions and using fewer building materials for the purpose of sustainability in the construction industry. Plastic balls using recycled materials, environmentally friendly and durable, the cost and concrete is not far away, there are many countries in use.

Plastic ball floor slab is also a revolution and innovation in the construction process, this technology is in the non-load-bearing slab on the use of recycled plastic balls for filling,  it is also called bubble deck with plastic balls. by take this plastic in concrete, directly reducing the use of concrete, but also reduce the weight of the structure, extending the life of the building. By combining recycled plastic, the span of the structural columns can be extended by 50 per cent, while the panels connect the concrete structure in both directions, eliminating the need for beams, with the following general features:

  1. No design restrictions, flexible and changeable forms can be adapted to various forms of building structures.
  2. reduced deadweight, the reduction of deadweight greatly saves the cost of building foundations.
  3. increasing the span between the columns by 50% over traditional structures.
  4. eliminating the cross-beam structure, making the construction process faster and more economical.
  5. Reduce the use of concrete, 1kg of recycled plastic can replace 100kg of concrete.
  6. energy saving and low-carbon, reducing carbon emissions.


Bubble deck with plastic balls

Plastic ball floor slab for nearly a decade in Europe has been successfully applied to a variety of building construction among them. In Denmark and the Netherlands have more than one million square meters of multi-storey buildings using this system.

When middle of September andeverywhere you looked there were Christmas balls and Christmas trees.There Christmas ball was made by Plastic material and by Extrusion blow molding machine.  How extrusion blow molding machine works on this Christmas ball production?

Check this video:

Features & Application

kerstbal christmas ball

The first Kerstbal Christmas ball in the world was created in the 1870s by Germany, it was put on a named ‘Christmas tree’. Christmas ball is one of the Christmas ornaments. Christmas ornaments, baubles, “Christmas bulbs” or “Christmas bubbles” are decoration items, usually to decorate Christmas trees. These decorations may be woven, blown (glass or plastic), molded (ceramic or metal), carved from wood or expanded polystyrene, or made by other techniques.Christmas Ornaments are available in a variety of geometric shapes and image depictions. Kerstbal Christmas Ornaments are almost always reused year after year rather than purchased annually, and family collections often contain a combination of commercially produced ornaments and decorations created by family members.

Commonly,Christmas ball is kind of gilt hanging-thing, There were shining flags and lanterns, and bird-cages, and nests with birds sitting on them, baskets of fruit, gilt apples, and bunches of grapes.

The modern-day mold-blown colored glass Christmas ball was invented in German also in the mid-16th century.The first decorated Christmas trees were adorned with apples, white candy canes, And Christmas balls, hearts and flowers. Glass baubles as the Christmas ball were first made in Germany, The popularity of these decorations grew into the production of glass figures made by highly skilled artisans with clay molds. Glass Christmas ball is expensive with good-quality Christmas ornaments and it is easy broken ,

Christmas balls are now frequently made from plastic and available worldwide in a massive variety of shapes, colours and designs. There are a large number of manufacturers producing sophisticated Christmas ball.

People all like this Christmas ball or other christmas ornaments in the world. normally, nowadays Christmas balls are made from

Christmas ornaments

Plastic material. you can take injection molding machine produce 2 hemispheres, then joints them into a Christmas ball. but the best way is you just take extrusion blow molding machine to produce christmas balls. by this way, you can produce any size christmas ball from diameter 3cm to 80cm.  A diameter 80 cm Christmas ball Kerstabal is gorgeous and would surprising your guests. Christmas ornaments can be various as the picture.


This is the parameter list for Extrusion blow molding machine special for Kerstbal Christmas ball:

Item Unit DKB-5LD DKB-10LD
Screw Diameter mm 80 90
Screw L/D Ratio L/D 26:1 28:1
Extrusion motor KW 30 45
Oil pressure motor KW 15 23
Screw rotate speed R.P.M 10-75 10-70
Screw heating zone Parts 6 5
Heating power KW 20 30
Parison motor  option KW 3.75
Extruding Capacity HDPE kg/h 120 150
Mold Center Distance mm 150/180/220
platen distance mm 180-550 240-700
mold movement stroke mm 490 700
Length range of mould mm 150-380 180-550
Width range of mould mm 150-450 200-580
Thickness range of mould mm 180-250 200-350
Dry Circle time s 3.7 5
Mold-locked pressure Ton 9 15
Oil tank Volume L 200 300
Air Pressure kg/cm2 6-8 6-8
Air Volume m3/min 0.8 0.9-1.2
Cooling water pressure mpa 0.3-0.5 0.3-0.5
Cooling water consumption L/min 60 60-70
Min./Max. diameter of product mm 40-300 100-600
Weight of product g 30-300 100-500
Volume of product L 0.1-6 5-10
Total power consumption kw 65 101.75
Average power consumption kw Approx.25-38 Approx.40-60
Net weight of machine ton 9 16
Gross weight of Machine ton 9.2 16.5
Machine dimension (L*W*H) m3 4.1*2.3*2.9 5.1*3.5*3.3