Molded Parts
Your Professional Molded Parts Supplier
Tianjin Maojie Rubber Products Co., Ltd. is a private enterprise specializing in the integrated design and manufacturing of rubber products. Currently, the company provides customized processing services for rubber and plastic products across various industries. Its main product portfolio includes a wide range of rubber components—such as O-rings, seals, mechanical seals, and gaskets—plastic parts, molded hardware packaging, metal-plastic composites, rubber shafts, rubber rollers, and other specialized rubber products.
Customized Services
The company offers tailored manufacturing solutions based on technical drawings and specifications provided by clients. Upon submission of required documentation, we provide detailed cost estimates. Production proceeds upon client confirmation of pricing and technical requirements.
Free Sample Provision
For products requiring mold development, we offer free sample production following mold fabrication. Samples are delivered to clients for evaluation and approval. Mass production commences only after formal confirmation of sample compliance with specifications.
Advanced Production Equipment
Our production line is equipped with state-of-the-art facilities, including raw material pre-treatment systems, mixing equipment, molding machines, vulcanization units, and post-processing apparatus, ensuring consistent product quality and process efficiency.
High-Quality After-Sales Service
We provide long-term mold maintenance and repair services. Our customer support team maintains regular communication with clients, promptly addresses inquiries, and ensures comprehensive after-sales support throughout the product lifecycle.
Parameter
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Material |
ABS,ASA,PP,PA,PC,PE,POM,HDPE,TPE,TPU, PVC,PBT etc |
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Material Report |
FDA, ROHS, UL, WRAS and REACH |
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Size |
Customized according to customer requirements |
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Color |
Customized according to customer requirements |
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Shape |
Customized according to customer requirements |
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Surface Finish |
Texture (VDI/MT standard, or made to client's sample), polished (high polish, mirror polish), smooth, painting, powder coating, printing, electroplating etc. |
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Service |
OEM and ODM |
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Tolerance |
Generally±0.05mm or Better |
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Technology |
Compression molding |
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Format drawing |
PDF,2D,3D,DWG,STEP,STLetc. |
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Delivery time |
20-45Days |
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Free Samples |
Accept |
Types of Molded Parts
The molded parts produced by our company mainly include the following types:
Molded Plastic Sleeve
Molded plastic sleeve is a type of plastic component formed in a mold through high pressure and high temperature, known for its high strength, high insulation, heat and chemical resistance, and excellent dimensional stability.
Molded Plastic Impeller
Plastic impellers are the core components in rotating machinery such as pumps, fans, blowers, mixers, or mixers. Their function is to transfer energy to fluids (liquids or gases) through rotation, thereby achieving purposes such as pumping, circulation, ventilation, and cooling.
Molded Plastic Slider
The principle is to place preheated plastic raw materials (usually in powder, granular, or fibrous form) into a heated mold cavity, then close the mold and soften, flow, and fill the cavity under high temperature and pressure.
Advantages of Molded Parts
Durability
One big advantage of molded parts is that it affords enhanced product design and manufacturing. The precision with which you can place inserts into a mold design cannot be achieved with other molding processes.
Weight
Plastic parts can be up to 50 percent lighter than their metal counterparts. This, combined with strength, is one of the primary reasons that industries are turning to plastic molding for parts.
Economical
Molded parts achieves cost savings in two ways. First, they allow the use of much cheaper materials. In general, resins are much more affordable than metals.
Efficiency
Molded parts eliminates a second assembly step in the manufacturing process. The insertion of metal or other components is integrated with the molding step, so there is no need for a stand-alone task.
Variety of Materials
Molded parts can use many different types of plastic resins in the process. These including thermoplastics, which are eco-friendly since you can recycle them.
Variety of Designs
Besides materials, molded parts allows many different types of shapes and designs for its parts. This is often not achievable using metals.
Molded Parts Molding Process Steps
Material Preparation
Plastic pellets are loaded into the hopper, which feeds them into the barrel. Inside the barrel, the reciprocating screw melts the pellets using heat and friction while ensuring uniform mixing.
Injection
The molten plastic is pushed forward by the screw under high pressure and forced through the nozzle into the mold cavity. The clamping unit ensures the mold halves are tightly sealed to prevent leaks.
Filling and Venting
The molten plastic flows through the sprue, runners, and gates, filling every part of the mold cavity. Trapped air escapes through mold vents, ensuring a flawless part.
Cooling and Holding
The mold is kept at a constant temperature to cool the plastic evenly. Holding pressure is applied to prevent backflow and control material shrinkage as the part solidifies.
Ejection
Once the plastic has cooled and hardened, ejector pins push the part out of the mold. The platen opens to release the finished part.
Repeat
More pellets are automatically fed into the hopper to start the next cycle. The process repeats in a continuous loop, enabling high-speed, efficient production.
Material of Molded Parts
Acrylonitrile Butadiene Styrene (ABS) :
Known for its strength and impact resistance, making it ideal for automotive and consumer products.
01
Polycarbonate:
Valued for its clarity and heat resistance, often used in applications requiring transparency, such as eyewear lenses.
02
Nylon:
Recognized for its durability and flexibility, commonly used in automotive and industrial applications.
03
Polypropylene (PP) :
Lightweight and resistant to chemicals, making it suitable for packaging and consumer goods.
04
Send us the drawings along with specifications for quality, volume requirements, mold life, and other requirements.
Obtain quotations for part prices, mold costs, and basic information from us.
Negotiate quality, price, materials, delivery time, payment terms, etc.
Confirm and place the order, and make the down payment.
We will further analyze your product from design to manufacturing to ensure there are no errors before manufacturing.
Send the mold design to the customer for double checking and approval.
Order materials and start processing, update manufacturing information once a week.
Assemble the mold and conduct regular comprehensive inspections, then try out some of the first samples.
Self check and send the sample to the customer for confirmation
If the first sample is satisfactory, the mold is completed. If not, we will make modifications until the customer's requirements are met.
Produce qualified parts according to customer requirements and deliver goods by sea or air freight.
Packaging and Shipping
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Packaging |
● Plastic or Bubble bags ● Small cartons ●For heavier products, we employ robust pallets or sturdy wooden boxes to provide optimal protection. |
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Shipping |
Air freight, Sea freight, Train Express |
Our Factory
The company is located in Tianjin. Since its establishment, the company has continuously cultivated new employees and absorbed innovative ideas.
