CNC PRO TECPACK / Solutions HDPE machines

CNC PRO TECPACK offers a complete range of rotative machines for HDPE extruded containers: agri-food, drinks, dairies, home care, personal care.

A range of 5 models from 2 to 10 molds:

2 molds Rotative blowing machine (SR2)

A two molds rotating machine with an output rate of 650 to 1 600 bottles an hour with capacities varying from 0.1L to 2L.
Max dimensions of containers:

Closing strength: 1 T
Volume: 2 000 cm³
Height: 320 mm
Diameter: 100 mm

4 molds Rotative blowing machine (SR4)

A four molds rotating machine with an output rate of 1 100 to 1 600 bottles an hour with capacities varying from 0.1L to 1L.
Max dimensions of containers:

Closing strength: 1 T
Volume: 2 000 cm³
Height: 320 mm
Diameter: 100 mm

6 molds Rotative blowing machine (SR6)

A six molds rotating machine with an output rate of 2 000 to 4 000 bottles an hour with capacities varying from 0.1L to 2L.
Max dimensions of containers:

Closing strength: 1 T
Volume: 2 000 cm³
Height: 345 mm
Diameter: 100 mm

8 molds Rotative blowing machine (SR8)

A eight molds rotating machine with an output rate of 2 600 to 5 200 bottles an hour with capacities varying from 0.1L to 1L.
Max dimensions of containers:

Closing strength: 0,7 T
Volume: 750 cm³
Height: 195 mm
Diameter: 100 mm

10 molds Rotative blowing machine (SR10)

A ten molds rotating machine with an output rate of 3 350 to 6 500 bottles an hour with capacities varying from 0.1L to 0.75L.
Max dimensions of containers:

Closing strength: 0,7 T
Volume: 750 cm³
Height: 195 mm
Diameter: 100 mm

end faq

SPARE PARTS

CNC PRO TECPACK can supply all the parts for your SR machines – from single parts to complete assembly. Please don’t hesitate to contact us with any requests or queries.

Cylinders
Wear Plates
Samplings With Claws
Blade knives (pipe cutting blade)
Gib blades
Bearing supports
Blowing needles
Needles + screws
Roller valves
Roller valve kits
Arm springs
Ejector springs
Sampling springs
Ceramic collars
Guides
Plugs
Pins
Connection parts...

Principle

The extrusion unit

The horizontal continuous extruder includes:

A nitrided steel barrel, with his feed hopper. Electrical resistances controlled by static pyrometers heat this barrel. Thermocouple probes check temperature. Blowing fans remove excess heat.
An extrusion screw made of special nitrided steel with a shape specifically adapted to the plastic material to be.
A drive unit including a three-phase electric motor with its speed variation control unit. This motor drives the screw through a belt and pulley transmission and a gear type reducer.
A parison head made up of a spider-pin-die-end piece assembly. Like the barrel, resistances heat the head. To inflate the parison, some air is blown through the die-pin. Changing the pin and the die gap makes it possible to modify the parison wall thickness and therefore the weight of the items produced.

The blowing unit

The SR machine has molds fitted on a rotary blow-molder with a horizontal shaft. This rotary unit, driven by an electric speed variator and motor-reducer, includes two circular plates set in a vertical position: one holds the fixed mold-halves, the other one the sliding units bearing the mobile mold-halves. Compressed air and mold cooling water are supplied through the central shaft. The molds made of stainless steel can be easily dismounted. A double guiding cam, to provide a smooth and silent mold closing, mechanically controls the opening and closing of the molds. Compressing steel spring washers performs mold locking. Each mold travels in turn under the die and catches a section of parison cut by a pneumatically actuated tube-cutter. The items are blown by a sliding needle, supplied with compressed air and fastened to the upper part of each mold is equipped with grooved jaws to remove the base tail-scrap, which can be automatically removed from the machine. The machine includes an automatic parison recovery system allowing machine start-up without any manual action in the machine and therefore with the door closed (safety). The collected parisons are automatically removed.