Products Description
What is a hard Hard Plastic Sphere ?
Hard plastic balls refer to solid or hollow spheres made of thermoplastic or thermosetting plastics with high hardness and rigidity. They usually have characteristics such as wear resistance, pressure resistance, and dimensional stability, and are widely used in industrial components, toys, sports equipment, and other fields.
The common materials and characteristics of hard plastic balls are as follows:

Pom Plastic Ball
1. POM (polyoxymethylene, commonly known as "Sai Gang") balls: high-density, high crystallinity, high hardness, wear resistance, good self-lubricating properties, low water absorption, suitable for precision components such as slides, bearings, valves, automotive parts, etc
Polypropylene Plastic Ball
PP (polypropylene) balls: can be made into solid or hollow, with good chemical resistance, commonly used for floating balls, sealing balls, etc.


Nylon Plastic Ball
PA (Nylon) Ball: Wear resistant, oil resistant, chemical resistant, high mechanical strength, but slightly higher water absorption than POM
Ptfe Teflon Ball
Low weight fluorinated semicrystalline polymer balls, they provide exceptional corrosion resistance and are used into high temperature applications.

Below is our Hard Plastic Sphere Grade
| Grade | Tolerance range of diameter(mm) | The tolerance range of roundness(mm) |
| G0 | +/-0.0127 | 0.00635mm |
| G1 | +/-0.0254 | 0.0127mm |
| G2 | +/-0.0508 | 0.0254mm |
| G3 | +/-0.127 | 0.127mm |
Our factory & quipment
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Company profile
With more than 25 years experience, Kaifeng Bell is a professional solid plastic ball manufacturer in China. Material : Acetal (POM), Polypropylene (PP) ,Nylon (PA PA66) ,PTFE(Teflon) ,PS ,PEEK, Acrylic (PMMA) , etc. Size from 0.8mm to 100mm. Grade G0 G1 G2
We have two factories to produce our balls , one is Located in Henan province (cover 10000 square meters and with more than 200 sets machines), another is located in Shandong province (cover 5000 square meters and with more than 50 sets machines) As plastic ball supply ,we also produce (304 316 316L 440C 420C) stainless steel ball, brass copper ball,(soda-lime&borosilicate) glass ball,Ceramic ball ,Tungsten Carbide Ball, sattelite steel ball,Aluminum Balls . Sizefrom 0.3mm to 100mm Grade from G5 to G1000
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