Hebei Fengchao Import and Export Co., Ltd. is one of the most reliable manufacturers and suppliers of high density graphite rod in China. With a professional production team, we are able to meet the needs of the majority of our customers. If you're going to wholesale bulk high density graphite rod made in China, welcome to get pricelist from our factory.
Our high-density graphite rods feature dense radial grain structure and excellent transverse bending strength. They maintain stable axial electrical conductivity under continuous high-temperature operation. Solid round rod blanks support precision turning and thread machining. With good mechanical wear resistance, they can serve stably as conductive shafts, rotary pins and blanks for heating elements in high-temperature furnaces.
High-density graphite rods have tightly bonded radial grains, delivering outstanding transverse bending and shear resistance. Axial conductivity remains stable under long-term vacuum high-temperature conditions. Solid round blanks are suitable for lathe turning, knurling and thread forming, with low risk of chipping during cutting. Widely used for conductive feedthrough electrodes in vacuum furnaces, rotary insulating mandrels, core rods for sintering tooling and conductive connecting studs for heat treatment equipment.
Our high-density graphite rods are manufactured by professional extrusion forming technology with graded high-purity raw materials. Relying on dedicated rod production lines and technical optimization, the products have uniform density, good straightness and stable electrical conductivity. Each finished rod undergoes strict inspection for reliable quality.
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FAQ
Q: What straightness tolerance can be achieved for extruded graphite rods? Are slender rods prone to deflection?
A: The standard straightness tolerance can be controlled within 0.8 mm per meter. For slender rod specifications, special straightening treatment is implemented to reduce deflection risk in subsequent application.
Q: Are there performance differences between the extrusion direction and radial direction of graphite rods?
A: Yes, extrusion anisotropy exists. Axial conductivity and bending strength are relatively higher. We will remind customers of the impacts brought by such anisotropy when manufacturing critical rotating components.
Q: Can external threads and internal threaded holes be machined on graphite rods? What are the limitations?
A: External thread machining is available for most diameter specifications. For internal threaded holes, the remaining wall thickness must meet technical requirements to avoid cracking under pre-tightening force during assembly.
Q: What is the maximum single length of unprocessed extruded graphite rod blanks?
A: The maximum length of extruded blanks can reach 1200 mm. Longer finished parts require multi-section splicing with threaded connectors.
Q: How is the straightness of graphite rods inspected before shipment?
A: Finished rods are tested at roller-type straightness inspection stations. Sampling tests on transverse bending strength and resistivity are also carried out to monitor anisotropy indicators.
Q: What technical parameters shall be provided for custom inquiry of graphite rods?
A: Please provide rod diameter, finished length, straightness tolerance requirement, whether internal or external threads are needed, and actual working condition (rotary service or static fixed service).
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