Custom PTFE Parts — Material Specifications, Engineering Data & OEM Supply
Built to international industrial standards, Custom PTFE Parts from HEMSUN delivers low friction and universal chemical inertness for parts components. Fabricated in Dahegam, Gandhinagar, Gujarat, India from high-density PTFE fluoropolymer with full material certification.
Where Custom PTFE Parts is used
PTFE is chosen for near-universal chemical inertness, a −200°C to +260°C service band, and the lowest friction of the common engineering polymers.
Common where an obsolete or single-source part must be reproduced from a drawing, a sample, or measurement of the worn original.
Supplied to drawing across the published range — Temperature range: -200°C to +260°C — with dimensional and material reports on request.
Key properties
All custom shapes
turned, milled, molded, die cut — any geometry
Design Input
CAD/CAM files (STEP/IGES/DXF), 2D drawings, or physical samples
Full reverse engineering capability
replicate any existing PTFE component
In-house
1 VMC + 5 CNC Lathes — no outsourcing, full quality control
All PTFE grades
Virgin, Glass/Carbon/Graphite/Bronze-Filled, Food Grade
Temperature range
-200°C to +260°C
Full chemical resistance
all acids, alkalis, solvents pH 0 to 14
FDA Compliance
Food Grade PTFE parts for food and pharmaceutical use
Custom Options
tolerances, surface finishes, and colors on request
Prototypes and production volumes
flexible MOQ
IEC registered
export-ready quality
Payment
T/T, L/C, D/P accepted
Specifications
| Property | Value |
|---|---|
| Component Type & Grade | Custom PTFE Parts (Specification Code HES-560) |
| 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 |
Manufacturing process
Fabrication of Custom PTFE Parts relies on high-tonnage powder compaction and free sintering of PTFE fluoropolymer. Preforms are pressed under strict pressure dwell parameters, then heat-treated above 342°C in forced-convection ovens to bond resin granules into a void-free, chemically resilient matrix.
Material selection notes
Physical performance of Custom PTFE Parts is governed by high-grade PTFE fluoropolymer polymer formulation. Outstanding chemical resistance, high elongation (up to 400%), and low surface energy make it ideal for aggressive chemical pumps, valve seating, and pharmaceutical sanitary process lines.
How to specify your order
Procurement checklist for Custom PTFE Parts: Specify outer dimensions (OD/ID/Length), chemical exposure media, temperature limits, and target delivery schedule. We assist in selecting the optimal virgin or filled material grade and provide itemized pricing with lead times.
Quality checks and inspection
Our quality department inspects Custom PTFE Parts using precision coordinate measuring machines, digital surface roughness testers, and resin specific gravity balances, ensuring 100% adherence to customer drawing nominals.
Ordering and export documentation
Domestic Custom PTFE Parts 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 packing and lead time
Global shipments of Custom PTFE Parts are handled by our dedicated export logistics team. Orders are packed in heavy-duty seaworthy packaging with VCI anti-corrosion barrier wrapping and dispatched with complete IEC customs documentation.
Storage and handling
Guidelines for Custom PTFE Parts: 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 & Standards
HEMSUN is a DGFT IEC registered exporter (Government of India). Critical dimensions are verified on CMM against the drawing you supply, and the inspection report is issued against your part number and revision. Export paperwork — commercial invoice, packing list and certificate of origin — accompanies international despatch.
Frequently Asked Questions
What file formats do you accept for custom PTFE part drawings?
We accept STEP (.stp), IGES (.igs), DXF (.dxf), DWG (.dwg), SolidWorks (.sldprt), PDF drawings, and hand-sketched drawings with dimensions. We can also manufacture from a physical sample without any drawing through our reverse engineering service.
Can you reverse engineer a PTFE part from a physical sample?
Yes. Send us the physical sample — a worn component, broken part, or reference piece — and our engineering team will measure, draw, and reproduce it in the appropriate PTFE grade. This is particularly useful for replacing obsolete OEM PTFE parts for pumps, valves, and compressors.
What tolerances can you achieve in custom PTFE machining?
We typically achieve ±0.05mm to ±0.1mm depending on part geometry and size. PTFE is machinable to tight tolerances on our in-house VMC and 5 CNC lathes. Share your drawing and we will confirm achievable tolerances for your specific part geometry.
What is the minimum order quantity for custom PTFE parts?
We manufacture from single prototype pieces to bulk production quantities. MOQ is flexible depending on material and complexity. Contact us with your requirement and drawing for a quote within one business day.
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