Chemical Drum Blow Molding Machine

60-300L chemical plastic barrels and wide-mouth barrels are large blow-molded barrels that are very popular and have more circulation. Therefore, as products with relatively large market demand, the company has been committed to research and development to increase its output. In 2019, we It also made a breakthrough in large 220L wide-mouth barrels, and developed double-station and multi-layer automation equipment, which greatly increased product output and saved labor costs.
  • Save time: Production speed increased by 10%
  • High quality: The drum has stable weight and uniform wall thickness
  • Cost Saving: Energy consumption is reduced by 10%
  • Personalization: Single layer, double layer and three layer can be customized, and to achieve fully automatic deflashing

What is a chemical drum?

Chemical drums are mostly made of plastic. They are also generally called plastic chemical drums. They are developed and blow molded using scientific formulas. They have various colors and beautiful appearances. They are acid and alkali resistant, corrosion resistant, leakproof, and non-toxic. It meets the packaging performance indicators in terms of fading and non-deformation, making it an ideal choice for long-distance transportation of chemical product packaging materials.
Plastic chemical drums have the advantages of one-piece polyethylene (PE) molding with no seams, impact resistance, anti-aging, light weight, no leakage, acid and alkali resistance, long life, and compliance with health standards. Its performance is much better than traditional fiberglass Containers, plastic welded containers, steel lined rubber and other containers.
It can replace stainless steel, titanium and other metal product containers to a considerable extent. It is the most ideal corrosion-resistant storage and transportation equipment for chemical liquids today, and it is cheap and high-quality. Products are widely used in chemical, dye, pharmaceutical, pesticide, metallurgy, rare earth, machinery, electronics, environmental protection, textile, food and other industries.

What are the common chemical drum materials?

1.HDPE chemical drum:
HDPE has the characteristics of high strength, corrosion resistance, chemical resistance and high temperature resistance, and is widely used in the chemical industry. Chemical barrels made of HDPE have good stability for storing dilute acids, alkali solutions, and other general chemicals, but they are not suitable for strong acids, ketones, benzene, spices and other substances.

2.PP chemical drum:
PP has the characteristics of toughness, good low-temperature performance, and good weather resistance. Chemical barrels made of PP are particularly good in acid and oxidant resistance and can be used to store dilute acids, oxidants, pharmaceuticals and other substances. However, it is not resistant to high temperatures, lipids and organic solvents, and is not suitable for long-term storage of chemicals that are volatile, volatile organic compounds, or contain well-soluble irritants.

3.ABS chemical drum:
ABS plastic is a thermoplastic that has good surface gloss and excellent mechanical properties when used to make packaging boxes or containers. The material used in ABS chemical barrels is ABS plastic, which has high oil resistance and corrosion resistance. ABS chemical barrels are often used to store oil, paint and other substances.

4.Stainless steel chemical drum:
Stainless steel chemical drum is a high-end storage and transportation equipment, suitable for the storage and transportation of various chemicals. Stainless steel chemical barrels not only have beautiful appearance, corrosion resistance, acid and alkali resistance, but also have certain wear resistance, scratch resistance, softness and mechanical properties. They can be used to store volatile, toxic and corrosive chemicals.

Different chemicals require different chemical drum materials. When purchasing and using chemical drums, you need to choose them based on their characteristics and scope of application. At the same time, attention must be paid to environmental conditions and safety protection measures during use to ensure personal safety and the safety of chemical storage.

Advantages and disadvantages of chemical drums made of different materials

HDPE chemical drum Advantages Disadvantages
Light weight, high temperature resistance, not easy to burn, high strength, corrosion resistance It has poor aging resistance. Under the action of atmosphere, sunlight and oxygen, it will age, discolor, crack, become brittle or pulverized, and lose its mechanical properties. Therefore, it is not suitable for substances such as strong acids, ketones, benzene and spices.
PP chemical drum   It has the characteristics of toughness, good low temperature performance, good weather resistance, acid resistance and oxidation resistance. Not resistant to high temperatures, lipids and organic solvents
ABS chemical drum High oil and corrosion resistance Poor thermal stability, easy to age, average dimensional stability
Stainless steel chemical drum It has beautiful appearance, corrosion resistance, acid and alkali resistance, and also has certain wear resistance, scratch resistance, softness and mechanical properties. The price is relatively high, the weight is heavy, it is difficult to transport and install, and it is easy to rust and requires regular maintenance and upkeep.

Application of chemical plastic barrels

Chemical plastic barrel is a kind of plastic barrel specially used to load chemical raw materials, chemicals and other corrosive and dangerous substances. Due to its excellent corrosion resistance, temperature resistance and safety performance, chemical plastic barrels are widely used in chemical industry, petroleum, medicine, pesticides, coatings and other fields.

1. Chemical industry
The chemical industry is one of the common application areas for chemical plastic barrels. Chemical raw materials have a variety of chemical properties, including acidity and alkalinity, flammability and explosiveness, toxicity and harmfulness, etc. Chemical plastic barrels are made of plastic materials with good corrosion resistance and temperature resistance. They can effectively store, transport and load chemical raw materials, ensuring the safety and environmental protection of the production process.

2. Petroleum industry
The petroleum industry is also one of the important application areas of chemical plastic barrels. The petroleum and chemical industries are closely linked, and a variety of chemicals are used for handling and processing during petroleum production. Chemical plastic barrels can be used to load and handle various chemicals in the petroleum production process, such as acids and alkalis, solvents, fuels, etc., ensuring the safety and environmental protection of the production process.

3. Pharmaceutical and pesticide industry
The pharmaceutical and pesticide industries also need to use chemical plastic barrels to carry various chemicals. These chemicals usually have toxic, flammable, corrosive and other properties and have high requirements for storage and transportation. Chemical plastic barrels are made of plastic materials with good corrosion resistance and temperature resistance, and can meet the storage and transportation requirements of the pharmaceutical and pesticide industries.

4. Paint industry
The coating industry also needs to use chemical plastic barrels to load various chemicals. Paint is a very important material used to decorate and protect surfaces. Chemical substances contained in paint, such as solvents, pigments, etc., are corrosive and dangerous. Chemical plastic barrels need to be used for storage and transportation to ensure the safety and environmental protection of the production process.

What are the common sizes of daily chemical drums?

General equal volume drum:
1.5-liter barrel: This kind of barrel is generally used for the storage and transportation of smaller chemicals, such as small molecular organic compounds, less corrosive reagents, etc.

2.10-liter barrel: This kind of barrel has a medium volume and is used to pack some medium-volume chemicals or to pack some large barrels of chemicals. It is often used in laboratories, chemical plants, etc.

3.20-liter barrel: This type of barrel has a larger volume and is one of the more common chemical barrels. It is suitable for the storage and transportation of most chemicals. Commonly used for light liquids and semi-solid liquid substances.

Other size drums with equal volume:
1.50-liter barrel: This type of barrel is generally used in large-scale production to store and transport larger chemicals.

2.100-liter barrel: This type of barrel is suitable for storing large quantities of chemicals and is often used in chemical plants.

3.200-liter barrel: This type of barrel has a larger volume and is used for packaging chemicals, food, and medicine. It is commonly found in semi-trailers, containers, and containers.

The capacity of chemical barrels is determined based on demand and usage. Different chemicals have different storage requirements and require different capacities to adapt.

What is a plastic mold?

Plastic molds are tools used in the plastic processing industry that are matched with plastic molding machines to give plastic products complete configurations and precise dimensions. Due to the wide variety of plastic types and processing methods, and the complex and simple structures of plastic molding machines and plastic products, the types and structures of plastic molds are also diverse. A combined plastic mold used for compression molding, extrusion molding, injection molding, blow molding and low-foaming molding. It mainly includes a variable cavity composed of a die combination base plate, a die assembly and a die combination card plate. The female die is a punch with a variable core composed of a punch combination base plate, a punch assembly, a punch combination clamping plate, a cavity cutting component and a side cutting combination plate. Coordinated changes of mold convex mold, concave mold and auxiliary molding system. It can process a series of plastic parts of different shapes and sizes. In the plastic processing industry, it is used in conjunction with plastic molding machines to give plastic products complete configuration and precise dimensions. Due to the wide variety of plastic types and processing methods, and the complex and simple structures of plastic molding machines and plastic products, the types and structures of plastic molds are also diverse. With the rapid development of the plastics industry and the continuous improvement in strength of general and engineering plastics, the application scope of plastic products is also expanding, and the consumption of plastic products is also rising. A plastic mold is a tool for producing plastic products. It consists of several groups of parts, and there is a mold cavity in this group. During injection molding, the mold is clamped on the injection molding machine. The molten plastic is injected into the mold cavity and cooled and shaped in the cavity. Then the upper and lower molds are separated. The product is ejected from the mold cavity and away from the mold through the ejection system. Finally, the mold is closed again. For the next injection molding, the entire injection molding process is carried out in a cycle. Generally, plastic molds are composed of a movable mold and a fixed mold. The movable mold is installed on the movable template of the injection molding machine, and the fixed mold is installed on the fixed template of the injection molding machine. During injection molding, the movable mold and the fixed mold are closed to form the pouring system and cavity. When the mold is opened, the movable mold and the fixed mold are separated to facilitate removal of plastic products. Although the structure of the mold may vary depending on the type and performance of the plastic, the shape and structure of the plastic product, and the type of injection machine, the basic structure is the same. The mold is mainly composed of pouring system, temperature control system, molded parts and structural parts. Among them, the pouring system and molded parts are the parts that are in direct contact with plastics and change with the plastics and products. They are the most complex and changing parts of the mold and require the highest processing smoothness and precision. The gating system refers to the runner part before the plastic enters the cavity from the nozzle, including the main channel, cold slug cavity, runner and gate, etc. Molding parts refer to various parts that constitute the shape of the product, including movable molds, fixed molds and cavities, cores, forming rods and exhaust ports, etc. Driven by high technology and the application needs of pillar industries, my country’s plastic molds have formed a huge industrial chain, from the upstream raw and auxiliary material industry and processing and testing equipment to the downstream machinery, automobiles, motorcycles, home appliances, and electronic communications. , construction and building materials and other major application industries, the development of plastic molds is full of vitality.

What are the classifications of plastic molds?

According to the different molding methods, plastic processing mold types corresponding to different process requirements can be divided, mainly including injection molding molds, extrusion molding molds, blister molding molds, high-expanded polystyrene molding molds, etc.
1. Plastic injection (plastic) mold
It is mainly the most commonly used molding mold in the production of thermoplastic parts. The processing equipment corresponding to the plastic injection mold is a plastic injection molding machine. The plastic is first heated and melted in the heating barrel at the bottom of the injection machine, and then in the injection machine. Pushed by the screw or plunger, it enters the mold cavity through the nozzle of the injection machine and the pouring system of the mold. The plastic is cooled and hardened to form, and the product is demolded to obtain the product. Its structure usually consists of molding parts, pouring system, guide parts, push-out mechanism, temperature adjustment system, exhaust system, support parts and other parts. Manufacturing materials usually use plastic mold steel modules. Commonly used materials are mainly carbon structural steel, carbon tool steel, alloy tool steel, high-speed steel, etc. The injection molding processing method is usually only suitable for the production of thermoplastic products. Plastic products produced by the injection molding process are very wide, ranging from daily necessities to various complex machinery, electrical appliances, transportation parts, etc., are all molded with injection molds. It is the most widely used processing method in the production of plastic products.
2. Plastic compression mold
It includes two structural mold types: compression molding and injection molding. They are a type of mold mainly used to shape thermosetting plastics, and their corresponding equipment is a pressure forming machine. The compression molding method heats the mold to the molding temperature (usually 103°-108°) according to the characteristics of the plastic, then puts the measured compression molding powder into the mold cavity and feeding chamber, closes the mold, and the plastic is heated under high heat and high pressure. It will appear as a softened viscous flow, and after a certain period of time, it will solidify and become the desired product shape. The difference between injection molding and compression molding is that there is a separate feeding chamber. The mold is closed before molding. The plastic is preheated in the feeding chamber and becomes a viscous flow state. It is adjusted and extruded into the mold cavity under pressure and hardened to form. Compression molds are also used to form certain special thermoplastics such as difficult-to-melt thermoplastics (such as polyethylene fluoride) blanks (cold press molding), resin lenses with high optical properties, slightly foamed nitrocellulose automobiles Steering wheel etc. The compression mold is mainly composed of a cavity, a feeding cavity, a guide mechanism, an ejection component, a heating system, etc. Injection molds are widely used in packaging electrical components. The materials used in the manufacture of compression molds are basically the same as those in injection molds.
3. Plastic extrusion mold
A type of mold used to produce continuous-shaped plastic products, also called an extrusion molding head, is widely used in the processing of pipes, rods, monofilaments, plates, films, wire and cable coatings, special profiles, etc. The corresponding production equipment is a plastic extruder. Its principle is that solid plastic is melted and plasticized under the conditions of heating and screw rotation and pressure of the extruder, and is made through a die of a specific shape with the same cross-section as the die. of continuously selling plastic products. Its manufacturing materials mainly include carbon structural steel, alloy tools, etc. Some extrusion molds are also inlaid with diamond and other wear-resistant materials on the parts that need to be wear-resistant. The extrusion process is usually only suitable for the production of thermoplastic plastic products, and its structure is significantly different from injection molds and compression molds.
4. Plastic blow mold
It is a mold used to form hollow plastic container products (such as beverage bottles, daily chemical products and other packaging containers). According to the process principle, the main forms of blow molding include extrusion blow molding and injection blow molding. , injection stretch blow molding (commonly known as “injection stretch blow molding”), multi-layer blow molding, sheet blow molding, etc. The equipment corresponding to the blow molding of hollow products is usually called a plastic blow molding machine. Blow molding is only suitable for the production of thermoplastic products. The structure of the blow mold is relatively simple, and the materials used are mostly made of carbon.
5. Plastic blister mold
It is a kind of mold that uses plastic plates and sheets as raw materials to form some relatively simple plastic products. Its principle is to use the vacuum opening method or the compressed air molding method to make the plastic plates and sheets fixed on the concave mold or punch mold. After heating and softening, it is deformed and attached to the cavity of the mold to obtain the desired molded product. It is mainly used in the production of some daily necessities, food, and toy packaging products. Due to the low pressure during molding, the blister mold is mostly made of cast aluminum or non-metallic materials, and the structure is relatively simple.
6. High-expanded polystyrene mold
It is a mold that uses expandable polystyrene (bead-shaped material composed of polystyrene and foaming agent) raw material to form foam plastic packaging materials of various required shapes. The principle is that expandable polystyrene can be molded with steam in the mold, including simple manual molds and hydraulic press straight-through foam molds, which are mainly used to produce packaging products for industrial products. The materials used to make this type of mold include cast aluminum, stainless steel, green bronze, etc.

Plastic mold design elements:

Mold design and manufacturing are closely related to plastic processing. The success or failure of plastic processing depends largely on the mold design effect and mold manufacturing quality, and plastic mold design is based on the correct plastic product design. 1.Parting surface, which is the contact surface between the concave mold and the punch when the mold is closed. The selection of its position and form is affected by factors such as product shape and appearance, wall thickness, molding method, post-processing technology, mold type and structure, demoulding method and molding machine structure. 2. Structural parts, that is, sliders, inclined tops, straight top blocks, etc. of complex molds. The design of structural parts is very critical, related to the life of the mold, processing cycle, cost, and product quality. Therefore, designing the core structure of a complex mold requires a higher level of comprehensive ability on the part of the designer, and the designer should pursue a simpler, more durable, and more economical design solution as much as possible. 3.Mold accuracy, that is, card avoidance, precise positioning, guide pillars, positioning pins, etc. The positioning system is related to the appearance quality of the product, the quality and life of the mold. According to the different mold structures, different positioning methods are selected. The positioning accuracy control mainly relies on processing. The internal mold positioning mainly needs to be fully considered by the designer to design a more reasonable and easy to adjust Targeting. 4.The pouring system is the feed channel from the injection molding machine nozzle to the cavity, including the main channel, the runner, the gate and the cold material cavity. In particular, the selection of the gate position should be conducive to the molten plastic filling the mold cavity in a good flow state. The solid runner head and gate cold material attached to the product should be easily ejected from the mold and removed when the mold is opened ( Except for hot runner mold). 5.Plastic shrinkage rate and various factors that affect the dimensional accuracy of the product, such as mold manufacturing and assembly errors, mold wear, etc. In addition, when designing compression molds and injection molds, the matching of the process and structural parameters of the molding machine should also be considered. Computer-aided design technology has been widely used in plastic mold design.

What should you pay attention to when buying a blow molding machine?

1.When choosing a blow molding machine, be sure to read the instructions carefully and perform standardized operations in accordance with the instructions.
2.Strictly controlling quality issues and checking the safety and technical performance of products is an important step in the purchase process.
3.Understand the after-sales service situation. When choosing products with guaranteed quality, you can pay more attention to the after-sales service situation of the merchant.
4.In addition, you need to pay attention to the appearance of the blow molding machine to see if there is any wear or damage. Don’t be too blind when choosing a blow molding machine, but carefully consider and weigh it, so that you can choose a suitable, quality-guaranteed, cost-effective blow molding machine that will not cause inconvenience or impact on future work.

Blow molding machine safe operation and maintenance:

The blow molding machine is a plastic molding equipment widely used in the plastics industry. It can heat plastic and use airflow to blow it into products of different shapes. However, since the blow molding machine will produce dangerous factors such as high temperature and high pressure during operation, correct operation and maintenance are crucial to ensure the safety of operators and the normal use of equipment. This article will introduce the safe operation and maintenance procedures of the blow molding machine for the reference of relevant practitioners.

Safety operating procedures:

1. Understand the equipment manual Before using the blow molding machine, you must carefully read the equipment manual and make sure you understand the performance, operation methods and safety precautions of each component. If you encounter operational questions, you should communicate with the equipment manufacturer in time to avoid accidents.
2. Wear personal protective equipment When operating a blow molding machine, you must wear personal protective equipment that complies with relevant national or industry standards, including but not limited to safety shoes, earplugs, protective gloves, and goggles. Especially when replacing molds and cleaning the inside of equipment, you must wear corresponding protective gloves and goggles to avoid being injured by high-temperature, high-pressure molten plastic or other objects.
3. Ensure the normal operation of the equipment Before starting the blow molding machine, check whether the power supply, air source, mechanical components, etc. of the equipment are operating normally, and conduct a test run to eliminate existing problems and faults. Especially in terms of hydraulic and mechanical components, if abnormal conditions such as oil leakage and looseness are found, the machine must be shut down for maintenance to ensure the perfect operation of the equipment. 4. Follow operating procedures During the operation of the blow molding machine, operating procedures must be strictly followed to avoid safety accidents caused by malicious operations or operating errors. Especially in terms of mold adjustment and cleaning, oil circuit maintenance, etc., operations should be carried out in strict accordance with relevant procedures and cooperation with colleagues to prevent squeezing hands, molds and other objects from harming the body.
5.Safe shutdown After the operation of the blow molding machine is completed, a safe shutdown must be carried out. Each equipment should be stopped according to the procedures, and the power supply, air source and other supplies should be cut off and necessary protective measures should be taken to ensure that the equipment is in a shutdown state.

Equipment maintenance procedures:

1. Check the oil circuit regularly The hydraulic system of the blow molding machine is an important part of the blow molding machine, and the maintenance of its oil circuit is particularly important. After daily production, the hydraulic oil circuit should be inspected to confirm that there are no sediments, looseness, etc. in the oil circuit. At the same time, the hydraulic oil for lubrication and protection must be replaced in time.
2. Clean the inside of the mold and machine The cleaning of the mold and the inside of the machine is an important part of the maintenance of the blow molding machine. Its purpose is to ensure the hygiene and quality of the plastic products produced. Under normal circumstances, the mold and the inside of the machine should be cleaned after each production to remove residual plastic products, dirt and other substances to ensure the normal development of the next production.
3. Maintain accessories on your device The safe operation of the blow molding machine is not only related to the equipment body, but also inseparable from the use and maintenance of various accessories above. For example, air filters, high-temperature gear oil, electronic control systems, etc. all need to be maintained and replaced regularly to ensure the normal operation of the blow molding machine.
4. Maintain equipment regularly Regular maintenance of the blow molding machine is the key to ensuring long-term stable operation of the equipment. During the production process, wearing parts must be regularly inspected and replaced, such as the cylinder gasket of the engine, gears, belts, bearings of the transmission system, etc., as well as maintenance tasks such as filling the equipment with lubricating oil and replacing cylinders. 5. Create device files The normal operation of the blow molding machine requires the establishment of corresponding equipment files to record the historical operation, maintenance and repair of the equipment, so as to facilitate future investigation, management and repair of the equipment.

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Chemical Drum Blow Molding Machine Models

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