Graphite Filled PTFE Manufacturer

Graphite Filled PTFE — OEM PTFE component, HEMSUN ENGG. INDUSTRIES Ahmedabad

Graphite Filled PTFE — Material Specifications, Engineering Data & OEM Supply

Built to international industrial standards, Graphite Filled PTFE from HEMSUN delivers low friction and universal chemical inertness for graphite filled components. Fabricated in Dahegam, Gandhinagar, Gujarat, India from high-density PTFE fluoropolymer with full material certification.

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Applications

Where Graphite Filled PTFE is used

Supplied as dry-running bearings and seals against soft mating faces that a harder filler would score.

Graphite filling gives the lowest friction of the filled grades and suits dry running and soft mating faces.

Chosen over carbon-graphite grades when the mating face is soft — bronze, aluminium or a plated bore — because graphite alone will not score it the way a carbon-filled compound can.

Features

Key properties

In-house Graphite Filled PTFE production

moulding and CNC under one roof

Drawing, CAD (STEP/IGES/DXF), or sample-based reverse engineering

PTFE grade options matched to chemical and thermal duty

Dimensional inspection with reports on request

IEC-registered exporter

worldwide packing and docs

Flexible MOQ

prototypes, pilot lots, recurring OEM supply

Specifications

Property	Value
Component Type & Grade	Graphite Filled PTFE (Specification Code HES-370)
Base Raw Material	PTFE fluoropolymer (Virgin FDA 21 CFR 177.1550 / Custom Filled)
Continuous Service Temp.	-200°C to +260°C (-328°F to +500°F)
Tensile Strength at Break	20 to 35 MPa (Virgin) / 14 to 25 MPa (Filled)
Elongation at Break	250% to 450% (ASTM D4894)
Specific Gravity / Density	2.14 to 2.18 g/cm³ (ASTM D792)
Dielectric Strength	50 to 80 kV/mm (0.1 mm film)
Surface Roughness Finish	Diamond Polished Ra ≤ 0.20 µm to Ra ≤ 0.40 µm
Dimensional Tolerance	ISO Grade 1 to Grade 3 / Drawing Nominals (±0.02 mm)
Manufacturing & Origin	Moulded, Sintered & CNC Machined in Dahegam, Gandhinagar, Gujarat, India

Process

Manufacturing process

The manufacturing process for Graphite Filled PTFE utilizes precision cold preforming of PTFE fluoropolymer followed by oven sintering. Automated hydraulic press cycles ensure consistent green compact density, which prevents localized voids and ensures uniform thermal expansion behavior during finish machining passes.

Material

Material selection notes

Engineered from high-purity PTFE fluoropolymer, this component resists virtually all industrial acids, alkalis, and aggressive organic solvents. The non-stick, self-lubricating surface minimizes drag and prevents material buildup in fluid handling systems. Compressive deformation under load is optimized through tailored filler grades based on service pressure.

Selection

How to specify your order

To configure Graphite Filled PTFE for your application, submit component dimensions, operating PV factors, and delivery port requirements. Our engineering team prepares complete technical evaluations and formal quotations within 24 hours.

Quality

Quality checks and inspection

Testing procedures for Graphite Filled PTFE include optical comparator profile inspection, hydrostatic pressure holding tests on seal components, and material hardness checks (Shore D) to verify full sintering cure.

Supply

Ordering and export documentation

Domestic Graphite Filled PTFE orders ship with GST invoice and e-way bill where applicable. Export orders include commercial invoice, packing list, and certificate of origin from our IEC-registered works. Air and sea freight packing with desiccant and shock protection for international buyers Contact info@hemsun.com or sales@hemsun.com with your PTFE components specification.

Export

Export packing and lead time

Export logistics for Graphite Filled PTFE cover global delivery via air freight or ocean container through Mundra and Nhava Sheva ports. Products are packed with protective foam wrapping and moisture-barrier film inside export-grade wooden crates, accompanied by certified commercial invoices and Certificates of Origin.

Care

Storage and handling

Guidelines for Graphite Filled PTFE: Handle with clean gloves during precision assembly. Ensure mating metallic seats and shafts exhibit surface finishes of Ra ≤ 0.4 µm for maximum component operating life.

Compliance

Compliance & Standards

HEMSUN is a DGFT IEC registered exporter (Government of India). Filler content and sintered density are verified per ASTM D792 on each batch, with tensile and elongation checked per ASTM D4894. A mill test certificate stating the lot, filler content and measured values ships with the order. Export paperwork — commercial invoice, packing list and certificate of origin — accompanies international despatch.

Frequently Asked Questions

What Graphite Filled PTFE options does HEMSUN manufacture?

Can you supply Graphite Filled PTFE for OEM and export orders?

Yes. We support prototype lots, recurring OEM programmes, and export packing with material certificates and dimensional inspection reports on request. Typical RFQ response is within one business day when drawings are complete.

How do I request a quote for Graphite Filled PTFE?

Send material grade, dimensions or drawing, quantity, application media, and operating temperature/pressure via https://hemsun.com/contact. Our engineering team confirms manufacturability, lead time, and pricing.

Graphite Filled PTFE

Where Graphite Filled PTFE is used

Supplied as dry-running bearings and seals against soft mating faces that a harder filler would score.

Graphite filling gives the lowest friction of the filled grades and suits dry running and soft mating faces.

Chosen over carbon-graphite grades when the mating face is soft — bronze, aluminium or a plated bore — because graphite alone will not score it the way a carbon-filled compound can.