Fully-automatic big volume linear PET stretch bottle blowing machine

SBL Series as a pioneer in manufacturing the full-automatic linear PET stretch blow molding machine especially for the big volume bottles. Demark adopts special design on the preheat construction and servo driving system to enable it big volume blow molding machine series save more than 50% power compared with similar machines by others.

SBL Series is available for blowing bottles for beverage, edible oil, catchup, cleaner, cosmetic and medical products with the volume between 5L and 20L.

Video (SBL6)

Innovations

heating system

Heating system
Patent light box provides constant and circulatory temperature (heater is fixed with short linkage 101mm, mach shorter than 240mm), to save electric power by more than 50% accurate control on the position and speed by servo, assure the action of the preheating-chain and manipullator in synchrony.

Hydraulic pressure close mold system

Hydraulic pressure close mold system
Take the place of traditional pneumatic die set, with both sides pressure and four boards forming, assure the stability at the pass rate of 99.8%.

Blowing system

Blowing system
Cooperate with the international leading research organizations, create the high-pressure integration valve group, the single cavity productive capacity is increased by 60%.

Stretching system

Stretching system
Use linear sliding track frame work instead of linear bearing, which offers an outstanding improvement of stability.

Main transmission system

Main transmission system
Adopt patent double strand roller chains technology, to assure the demands of stability and high speed.

Manipulator system

Manipulator system
Adopt servo manipulator to take the preform and bottles synchronously, accurately and quickly.

Highlights of SBL series blower

  • Good stability: Thanks to the excellent design concept and strict machining request as well as the outstanding electric collocation.
  • Competitive price: provide machine with good quality while lower price.
  • Demark bring in the method of rotary blowing mould machine to develop linear blowing mould machine for the first time among the domestic manufacturers, which has resolved the problems of bad stability and lowefficiency of traditional linear blowing mould machine.
  • Demark is the first company that makes the single cavity capacity up to 600 bottles per hour (take 20L Oil bottle for example).
  • Peculiar heating system of light bar and light box with special design.

Main technical features

Item Unit SBL2 SBL3 SBL4 SBL6
Capacity (5L) BPH 700 -900 (20L) 2300 - 2500 3000 - 3600 4600 - 5100
Mould plate stroke mm 320 220 220 210
Stretching stroke mm 500 350 350 350
Bottom die trip mm 50 30-50 30-50 30-50
Mould cavity pcs 2 3 4 6
Cavity spacing mm 320 190.5 190.5 203.2
Max.container volume L 20 6 6 5
Max.neck diameter mm 75 48 48 55
Max.container diameter mm 290 175 175 180
Max.container height mm 500 350 350 330
Bottle preform maximum height mm 210 9 180 180
Heatingbox number pcs 6 6 8 8
Heating box lamp number pcs 15 12 12 9
Max.heating power kw 100 117 156 180
Installed the total power kw 125 150 180 202
Actual power consumption kw 50-80 60-80 70-90 110 - 140
Voltage / frequency (50Hz) V 380 (50Hz) 380 (50Hz) 380 (50Hz) 380 (50Hz)
Operating pressure kg/cm² 7-10 7-10 7-10 7-10
Low pressure consuming ltr/min 2000 2000 3000 3000
Blowing pressure kg/cm² 30-40 30-40 30-40 30-40
Hight pressure consuming m³/min 16 12 15 27
Cold water machine pressure kg/cm² 3-5 3-5 3-5 3-5
Temperature range 8-10 8-10 8-10 8-10
Consumption kcal/hr 26040 40000 45000 50000
Machine dimension m 5.9 * 2.8 * 3.5 6 * 2.5 * 2.8 7.6 * 2.6 * 2.8 8.5 * 2.6 *3.0
Machine Weight T 8 7 8 12
Notice: Demark reserve the rights to make any product improvement or specification change without prior notice.
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Notice: The views expressed are my own and do not necessarily represent the views of DEMARK.
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