Parison Programming & Control for Extrusion Blow Molding

Generally speaking, a parison control system does not mean the controller only, it’s a control system for the parison thickness.
The system consists of the following components: 1. Parison Hydraulic Cylinder 2. Oil Tank 3. Precision Filter 4. Pressure Accumulator (Not necessarily, depends on the type of the product) 5. Parison programming 6. Hydraulic Cylinder Control Valve 7. Hydraulic Motor.

MOOG is one of the brands for parison control system. The main sales are 1.Parison programming (Parison Controller) 2.Hydraulic Cylinder Control Valve.
MOOG is taken as the general name by the industry for parison control system because of its high reputation and high market sharing. In the hydraulic generation, MOOG almost monopolized the market of parison control system. However, in servo motor generation, MOOG did not rank to it’s high reputation and shared less market for its ordinary performance.

The main usage of the parison control system (parison programming) is to change the thickness of every section for the container/bottle/extrusion blow molding product from top to bottom.
The numbers of the sections depend on the ability of the controller, valves, and the servo motor. 100 points is the most common, that means there are 100 sections from top to bottom, and every section’s thickness can be set up separately.

We can use the parison control system to change the thickness of every section for the container/bottle/extrusion blow molding product from top to bottom. So followings are available:
1. To change the thickness of the bottle/product to revise the weight of the bottle/product without changing the mold.
2. To make the body that doesn’t affect the strength of the bottle thinner, reducing the weight to reach the benefit of keeping the cost down.
3. To thicken the mouth, bottom, and handle of the bottle that is easily broken or deformed, reaching the benefit of strengthening the product.
4. With the function of thinning partially and speeding up the cooling of the product, it is possible to shorten the cycle time of the production and expedite the output.
5. Adjusting the thickness of any section on the products that customers require makes it possible to fabricate some products that cannot be produced before.

It depends on your budget and the requirements from your customer. Generally speaking, we suggest installing the parison control system if your project is for long term production. It will strengthen the product, lower the material cost, expedite the procedure of production, and fabricate the products with more complicated design. That will achieve better competitiveness on the market.

The servo motor of the servo parison control system is advanced, and the power supply is adjustable according to the actual situation when the power is needed. The precision is higher and the power is saved more. The oil tank and precision filter are not required, so the cost for maintenance is lower than hydraulic type. For long term consideration, the cost of using servo type parison control system is lower than hydraulic type.
Compared to the hydraulic type, the only disadvantage of the servo type is the higher price. If the price difference is within your budget, we suggest choosing the servo type parison control system as your first option.

With over 40 years of experience in manufacturing extrusion blow molding machines, Jonh Huah Machinery is a leading Taiwanese company renowned for its quality, innovation, and customer satisfaction. Our state-of-the-art parison control systems allow precise thickness control for every section of your products, enabling material optimization, cost reduction, and enhanced product strength.
Our team of experts works closely with you to tailor our extrusion blow molding machines to your unique production requirements, whether you need high-volume output or specialized designs. We prioritize continuous improvement and customer support, ensuring you receive the best solutions for your extrusion blow molding needs.
Choose Jonh Huah Machinery for your extrusion blow molding machine needs and experience the advantage of superior quality, innovation, and tailored solutions that drive your business success.