Blow-moulding automatic machines

Use of the machine

Blow-moulding automatic machines are designed to produce hollow bodies with different nominal volumes.It is possible to process thermoplastic materials of following groups on the blow-moulding automatic machines: PE-LD, PE-HD, PVC-U, PP and, in some cases PET-G as well.

Description of the machine

The blow-moulding automatic machine consists of following parts: all-welded frame, extruder, blow-moulding unit, hydraulic and pneumatic system and control unit. The machine has a continuous regulation of screw revolutions and uses different kinds of screws. This enables a high plastification output as to different kinds of thermoplastics.

Blow-moulding unit

The blow-moulding unit is designed in such a way that it enables the throwing out of the parallel, respectively the misalignment of the neck of the blown-off body.

Hydraulic system

The hydraulic system serves for drive of mould mechanism and (as to some types) for the overflow separation.

Pneumatic system

The pneumatic system serves for blowing off of hollow bodies, additional cooling of products, parison separation and for the drive of the separation system.

Control system

The steering part is controlled in mediation of a programmable control system with a standard software. The motions of all mechanismes are monitored during the whole production cycle. On the machines, there are used following control elements: REXROTH, FESTO, BACH, ALLEN BRADLEY, PHILIPS, SIEMENS.

Technical data of blow-moulding automatic machines

Type 033 002
M005 		033 004
M004 		033 006
M001 		033 007
M001 		033 011
M001
Commercial marking VA116 VA123 VA211 VA221 VA311
Extruder Screw diameter [mm] 60 80 45 60 45
Screw length [L/D] 20 20 23 20 23
Number of heating zones 3 3 3 3 3
Nominal drive output of the screw [kW] 20 45 11 20 14,6
Screw revolutions [scope] 0-80 0-90 0-78 0-80 4-78
Plastification output [kg] PE-LD 80 120 40 80 40
PE-HD 90 140 45 90 45
PVC 55 70 22 55 22
PP 80 140 45 80 45
Extrusion
heads 		Diameter 1-way PE, PVC [mm] 200/100 140/100 80 80 80
Diameter 2-way PE, PVC [mm] 80/60 60 40 40 40
Diameter 3-way PE [mm] 60 40 20 20 20
Spacing 2-way [mm] 165 125 100 100 100
Spacing 3-way [mm] 2x110 2x85 2x70 2x70 2x70
Blow-moulding
unit 		Closing force max. [kN] 140 100 40 40 40
Dead machine time [s] 2,5 1,8 1,9 1,9 3
Misalignement of the blowing
mandrel 1-way [mm] 		140 90 60 60 60
Misalignement of the blowing
mandrel 2-way [mm] 		50 50 30 30 30
Tilting of the blowing
mandrel 1-way [°] 		30 30 20 20 20
Max. diameter of the blowing
mandrel [mm] 		60 60 30 30 30
Hydraulic
system 		Pressure of the hydraulic system [MPa] 13 16 16 16 13
Volume of the oil tank [l] 100 250 100 100 100
Need
in power
sources 		Kilowatt installed [kVA] 72 86 55 66 50
Pressure air 600 kPa [Nm3/h] 80 120 45 80 15-20
Cooling water 2-6 bar, 8°C
Cooling output [kW] 		12 20 1,8 3 4-5
Dimensions
and mass 		Length [mm] 3300 3740 3269 3256 3485
Width [mm] 2385 3332 1370 3320 1180
Height [mm] 3790 3120 2465 2465 2114
Mass [kg] 3500 7200 4000 5500 3500
Production
possibilities 		1-way head Diameter [mm] 200 140 105 105 105
Length [mm] 400 375 80-300 80-300 300
2-way head Diameter [mm] 130 100 84 84 84
Length [mm] 400 375 80-300 80-300 300
Spacing [mm] 165 125 100 100 100
3-way head Diameter [mm] 90 70 50 50 50
Length [mm] 400 375 80-300 80-300 300
Spacing [mm] 2x110 2x85 2x70 2x70 2x70
Max. volume of the blown-off body [l] 15 10,5 2 2 2,5
Mould Height [mm] 470 420 350 350 350
Width [mm] 370 280 220 220 220
Depth [mm] 2x135 2x100 2x75 2x75 2x70
Daylight max. [mm] 230 180 120 120 120