|7 Pittsburgh Ave Nashua, New Hampshire 03062, USA|
|Phone (603) 889-7233 Fax (603) 889-7300 Call Ed Makepeace|
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Production Capacity (bottles/hr)
nice machine, versatile, reliable
1998 Sidel SBO 2F two-step stretch blow molding machine (no photo available yet) GENERAL INFORMATION The SBO 2F has 2 molds and 3 heating modules. It can produce up to 2400 bottles per hour in a wide range of bottle sizes and styles from 0.25 to 3 liters. Sidel 2-step ^PET stretch-blow molders require previously manufactured preforms be supplied to the machine. Separating the bottle manufacturing and preform manufacturing processes allow production to be optimized, provide greater flexibility of operation and use, and provide higher production output rates and yield. MAXIMUM PREFORM DIMENSIONS Neck height 7 - 41 mm (measured from bottom of support ring) Minimum inside diameter of neck 21 mm Maximum outside diameter of neck 34 mm Preform support ring diameter 29 - 51 mm Maximum preform length 210 mm MAXIMUM BOTTLE DIMENSIONS Maximum bottle diameter 130 mm Maximum bottle height 395 mm Bottle capacity 0.25 - 3 liters AVERAGE PREFORM WEIGHTS (non carbonated and carbonated liquids) 0.25 liter bottle 14-20 grams 0.50 liter bottle 20-33 grams 1.00 liter bottle 26-40 grams 1.50 liter bottle 35-51 grams 2.00 liter bottle 44-58 grams 3.00 liter bottle 68-84 grams SBO 2F SPECIFICATIONS: BLOW WHEEL Number of molds 2 Item height (under neck) at outfeed 1.1 meters HEAT CONDITIONING Number of oven heating units 3 Number of heating zones per unit 10 (plus 1 lamp opposite each oven) Maximum power 56.1 KW ELECTRICAL USAGE Maximum supplied power 107 KW Average consumption 25-55 KW/hr (varies per bottle being produced) COMPRESSED AIR Supplied power from 7-40 bar Pressure 7 bar Flow rate 45-55 Nm3/hr (varies per bottle being produced) Blow pressure - petaloid base up to 40 bar Blow flow rate - petaloid base 45-240 Nm3/hr CHILLED WATER Temperature 8-12 degrees Centigrade Pressure 5-6 bar Flow rate up to 3 cubic meters/hour Kcal to be removed up to 7,500 Kcal/hour WEIGHT Machine and electrical cabinet 4.5 tons OVERALL DIMENSIONS (including open gate access etc) Length not including preform feeder 4.10 meters (161.4 inches) Width 1.92 meters ( 75.6 inches) Height 3.00 meters (118.1 inches) DESCRIPTION AND OPERATION OF SIDEL SBO 2F STRETCH BLOW MOLDERS PREFORM FEEDER The preforms are tipped in bulk into a 390 liter hopper. An elevator lifts the preforms onto the top of the infeed rails. They are held under the support ring by the two rails and are then lowered by gravity to the SBO 2F infeed. PREFORM HEAT CONDITIONING Oven spindles load into the necks of the preforms on an infeed starwheel. When loaded, the spindle rotates to present the preform in the neck down position. The rotating preforms continuously pass in front of the 3 oven modules, each of which is equipped with ten 2KW infra-red lamps and one lamp opposite each oven. The first oven module is equipped with ten 1100 watt lamps on one side and one lamp on the other side. Each power level is set independently from the others by means of a thyristor unit. Oven lamps are vented separately from the air cooling through which the preforms pass, to obtain optimum heat penetration of the preform wall. At the oven outfeed, an infra-red camera reads of preform temperatures and compares them with a set-point in order to control all the heating zones. PREFORM TRANSFER At the outfeed of the heat conditioning unit, the preforms are transferred onto the two fixed blowing positions by means of two cam-actuated swing arms fitted with a clip gripper. BOTTLE STRETCH-BLOW The blowing station is fitted with 2-pin lock molds with cam-actuated opening and closing systems. Two circuits can regulate mold temperatures if required. Each mold is placed in an encircling mold holding unit with integral mechanical locking. This configuration enables quick mold changing. The blowing nozzle is inserted into the preform neck, and guides the stretching rod, which controls axial stretching. The blowing process which controls the longitudinal stretching operation takes place in two stages - medium pressure pre-blowing, and high pressure blowing, which insures optimized distribution of the material thickness in the bottle wall. The blow nozzle design guarantees a perfect seal no matter what the blow pressure. The blowing pressure regulation is built into the machine. BOTTLE DISCHARGE After mold unlocking, two arms transfer the bottles to the outfeed. TECHNICAL ADVANTAGES OF SIDEL SBO STRETCH BLOW MOLDERS MACHINE RELIABILITY Robustness and long lasting service components. Transfer and mold open/close motions are controlled by rotary kinematics and fixed cam paths. PROCESS RELIABILITY Constant quality of bottle production based on the precision and repetition of stretch motions, and automatic adjustment of camera controlled heating zones. PRODUCTIVITY High productivity based on synchronization of all cam actuated motions and reduced dead times. INTERCHANGEABLE MOLD SETS Molds can be designed to fit the complete line of Sidel SBO stretch blow molders. SIMPLICITY A single motor with simple motions actuated by timing belts and gears. VERSATILITY Cabinet design enables easy access and fast interchange of molds and customization parts. Settings for heating, output rate, stretching, pre-blowing, and blowing can be quickly and independently changed. The process can be adapted to all types of preforms. AUTOMATIC OPERATION The main functions of startup and operation are combined on the machine integrated control panel. The role of the operator mainly consists of checking preform loading and output bottle quality. BOTTLE WEIGHT REDUCTION Optimization of material distribution based on precision of heat conditioning and stretch motions. STAFF SAFETY Machine startup can only proceed with the doors closed - opening them during machine operation triggers an immediate shutdown of the machine. Noise levels are less than 85dB. MACHINE SAFETY Various safety systems avoid mechanical damage to the machine. Preventative safety systems, such as the ejection of sub-standard preforms before heat conditioning, ejection of unblown preforms and substandard blown preforms, etc. High speed shutdown of machine due to prevent abnormal stress levels etc.
----------------------------------- NOTE: Although machinery descriptions are believed to be accurate and are from sources deemed reliable, they are not guaranteed and we invite your inspection prior to purchase.
We are one of the largest stocking dealers of plastics molding machinery in the United States, and have been selling plastics machinery worldwide for over 35 years. Our inventory is constantly changing, and we are often liquidating complete plants. Please keep in contact with us so that we can keep you informed of our latest purchases.
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