Are you looking for the best phenolic factories in China to meet your machining needs? With numerous options available, it can be overwhelming to choose the right one. In this article, we’ll compare the top phenolic factories in China, highlighting their strengths, product quality, and customer service to help you make an informed decision. Let’s dive in and find the perfect fit for your requirements.

China Customized Machining Phenolic Material Suppliers …

Machining Bakelite – PTJ Shop – CNC machining

Product Details: Bakelite is a type of plastic made from powdered phenolic resin mixed with materials such as sawdust, asbestos, or clay, and then pressed into a mold at high temperature. It is commonly used in CNC machining for producing prototypes and custom parts due to its excellent dielectric properties, good mechanical strength, and intermediate electrical insulation. CNC machining of Bakelite can accommodate simple prototypes as well as complex 3D surfaces. The process involves uploading 3D files for online quotations and offers various finishing options like powder coating and zinc plating[3][5][1].

Pros:
– Excellent dielectric properties
– Good mechanical strength
– Intermediate electrical insulation
– Can be machined into complex 3D surfaces
– Various finishing options available such as powder coating and zinc plating

Cons:
– Minimum wall thickness requirements (e.g., 0.5 mm)
– Tolerance limitations (e.g., ±0.005″ or ±0.125mm)
– Maximum part size limitations (e.g., 1200 x 500 x 150 mm)
– Historically contains asbestos, though modern formulations may vary

Phenolic Sheet Material

Product Details: Phenolics are made up of resin impregnated paper, cotton, and glass cloths pressed into a solid shape. Cloth reinforcement is used to impart toughness to phenolics. These materials are available in various forms such as custom and cut-to-size sheets, rods, tubes, channels, angles, and bars. Different NEMA grades are also available.

Pros:
– Imparts toughness due to cloth reinforcement
– Available in various forms and sizes
– Different NEMA grades available for specific applications

Cons:
– No specific cons mentioned in the source
– No information on potential limitations or drawbacks

Phenolic Foam Panel Machine, Phenolic Board Production Line

Product Details: The Phenolic Foam Panel Machine is a production line used for manufacturing phenolic insulation boards in various sizes and densities. Key parameters include a panel size of 1200*600mm, panel thickness of 30~180mm, and the use of phenolic resin as the main raw material. The machine features a Double Belt Press Machine with a 33M length, and optional components such as embossing machines, automatic stacking and packing, and automatic cooling systems. The electronics include PLC from Mitsubishi, inverter from Danfoss, and low-voltage electrical appliances from Siemens. The machine ensures panel flatness of ±0.05mm for the machine chain plate and ±1mm for

the final panel. Machine testing can be arranged before delivery.

Pros:
– Good flame resistance and low smoke formation
– Stable elevated temperature properties and non-absorbent
– Thermal and acoustic insulation, anti-corrosion, and good durability
– Can produce panels with various surface materials such as aluminum foil, Kraft p…
– Optional features for automatic stacking, packing, and cooling
– High precision in panel flatness

Cons:
– Complex setup and operation may require specialized training
– High initial investment due to advanced machinery and electronics
– Dependence on specific raw materials and spare parts

Dielectric Phenolic Bakelite Board for CNC Machine

Phenolic Cutters-Downcut

Product Details: CoreHog’s Phenolic Cutters-Downcut are designed to cut Phenolic materials, which are typically made of hard, abrasive resin with paper, linen, or canvas layers. These cutters feature a downcut geometry to stabilize the part against the fixture and reduce vibration by applying downward pressure. They are center cutting, made of solid carbide, and precision manufactured in the USA. Key specifications include diameter, length of cut, shank diameter, and overall length, though specific dimensions can vary by model.

Pros:
– Specialized chipbreaker design for reduced harmonics, tool pressure, and resin b…
– Downcut geometry stabilizes part against fixture and reduces vibration
– Center cutting capability
– Made of solid carbide for durability
– Precision manufactured in the USA

Cons:
– May be more expensive due to specialized design and high-quality materials
– Limited to cutting specific types of Phenolic materials

Bakelite Phenolic Resin Laminated Plate CNC Cutting

Phenolic Machining Services

Phenolic paper laminated sheet bakelite board

Product Details: HONY® bakelite sheets are made of phenolic paper laminated material. They have high voltage insulating properties and are available in orange and yellow colors. The thickness ranges from 3-50mm. The sheets are imported and joint venture products. Payment options include T/T, Paypal, Money Gram, and Western Union. Incoterms available are FOB, CIF, EXW, DDP, and DDU. Transportation methods include ocean, land, air, and express. The ports of shipment are Shenzhen, Guangzhou, and Hong Kong. The price varies based on quantity: $1.91-99 per kilogram for less than 100 kilograms, $1.81 for 100-999 kilograms, and $1.7 for 1000 kilograms or more.

Pros:
– High voltage insulating properties
– Good mechanical strength
– Excellent dielectric properties
– Available in various thicknesses (3-50mm)
– Multiple payment and transportation options

Cons:
– Limited information on specific mechanical properties like impact strength and c…
– No detailed information on heat resistance or moisture absorption
– Price varies significantly based on quantity

Phenolic Cutters-Upcut

Product Details: CoreHog’s Upcut Phenolic Cutters are designed to cut Phenolic materials, which are typically made of hard, abrasive resin with paper, linen, or canvas layers. These cutters feature a specialized chipbreaker design, are center cutting, and made of solid carbide. They are precision manufactured in the USA. Key specifications include various diameters, lengths of cut, and shank diameters, with an overall length of 3.000 inches.

Pros:
– Specialized chipbreaker design for reduced harmonics, tool pressure, and resin b…
– Center cutting capability
– Made of solid carbide for durability
– Precision manufactured in the USA

Cons:
– May be more expensive due to specialized design and high-quality materials
– Limited to cutting specific types of Phenolic materials

Comparison Table

Frequently Asked Questions (FAQs)

Frequently Asked Questions About Machining Phenolic Materials

What are the challenges of machining phenolic materials?

Machining phenolic materials can be challenging due to the dusty and dirty nature of the material. Phenolics, such as G10 and G11, generate a lot of dust and can be rigid to handle. Additionally, the fibers in these materials can fray and leave fuzzy burrs that require laborious deburring processes, often involving manual labor or specialized cryogenic deburring equipment.

What machining processes are suitable for phenolic materials?

Phenolic materials can be machined using various CNC processes, including CNC milling, turning, and drilling. These materials can also be ground and sanded without lubricants, though this may take more time compared to other materials. For precise cuts, laser cutting can be used, but it requires the right laser system and settings to avoid defects like charring and heat-affected zones.

How do you achieve close tolerances when machining phenolics?

To achieve close tolerances, you need to use the right tools and machining methods. For phenolics, carbide or diamond-tipped tools are often necessary due to the material’s hardness. Maintaining sharp cutting tools and ensuring stable workpiece clamping are crucial. Additionally, controlling the machining environment, such as temperature and humidity, helps in achieving consistent results.

What safety precautions should be taken when machining phenolic materials?

When machining phenolic materials, it’s important to wear proper personal protective equipment (PPE) to avoid inhaling the dangerous dust generated. The workspace should be cleaned regularly to prevent dust accumulation. Also, ensure the machine is rigid enough to handle the side loading required for these tough materials, as vibration can quickly damage the tools.

How do you deburr phenolic parts effectively?

Deburring phenolic parts can be a detailed process. Manual labor is often required to remove the fuzzy burrs left by machining. For larger production quantities, cryogenic deburring machines can be used, which involve cooling the parts with liquid nitrogen and then blasting them with polycarbonate media to remove the burrs without damaging the part’s finish. This method ensures clean edges and retains the part’s shape.