Ningbo Zhonggao Rubber & Plastic Manufacturing Co., Ltd. is one of the most reliable manufacturers and suppliers of ffkm o ring in China. The company has world-leading production equipment and strong manufacturing capabilities. Welcome to wholesale custom made ffkm o ring from our factory.
FFKM O Rings
FFKM O rings provide high chemical resistance and thermal stability for demanding sealing applications across harsh industrial environments. Available in custom sizes and compound grades, they help reduce seal failure risks and maintenance costs in critical equipment.
FFKM O Ring Specifications
|
Parameter |
Specification |
|
Material |
FFKM (Perfluoroelastomer) |
|
Hardness |
60–90 Shore A* |
|
Operating Temperature |
Approximately −20°C to +325°C* |
|
Tensile Strength at Break |
Approximately 10–25 MPa* |
|
Elongation at Break |
Approximately 75–260%* |
|
Compression Set |
Approximately 11–42% after 70 hours at 200–204°C* |
|
Density |
Approximately 1.9–2.1 g/cm³ |
*Performance values are typical reference ranges and vary by FFKM compound grade. Test results depend on specimen preparation, test method, temperature, exposure duration, and test medium; confirm the specific grade`s technical data sheet and application conditions before selection.
Custom FFKM O Ring Manufacturing
We manufacture custom FFKM O rings based on your drawings, samples, sealing dimensions, and operating conditions.
Custom Sizes & Dimensions
We can produce:
- Custom inside diameter (ID), outside diameter (OD), and cross-section (CS)
- Metric and inch sizes
- Standard sizes and non-standard dimensions
- Custom dimensions and tolerances based on technical drawings
FFKM Material & Hardness
FFKM compound and hardness can be selected according to:
- Chemical media and concentration
- Continuous and peak operating temperatures
- Pressure, vacuum, and pressure cycling
- Compression, sealing force, and extrusion gap
- Static or dynamic sealing conditions
Drawing / Sample Matching
You can provide:
- CAD drawings or technical specifications
- ID, OD, cross-section, and dimensional tolerances
- Groove dimensions and installation requirements
- Required FFKM grade, hardness, or material performance
- Existing O ring samples and operating-condition details
These details help evaluate dimensional fit, compound suitability, and sealing performance before production.
Tolerance & Sealing Design
Custom O rings can be evaluated against:
- Dimensional tolerances for ID, OD, and cross-section
- Groove width, depth, and O ring compression
- Mating surface finish and extrusion gap
- Installation method and risk of twisting or damage
- Applicable standards, such as AS568 or ISO 3601, when required
Sampling & Production
We support custom development through:
- Sample evaluation against drawings or existing parts
- Dimensional and visual inspection before approval
- Prototype testing under representative operating conditions
- Approved sample and specification reference for repeat orders
OEM & Repeat-Order Support
Custom supply requirements can include:
- Specified FFKM compound and hardness
- Customer part numbers and labeling
- Packaging and identification requirements
- Batch traceability and inspection documentation, where available
- Repeat-order consistency based on approved specifications
Send your drawings or samples, sealing dimensions, required tolerances, chemical media, temperature and pressure ranges, and target quantity to evaluate a suitable FFKM O ring solution.
FFKM O Ring Applications
FFKM O rings are used in demanding sealing applications where chemical resistance, thermal stability, and reliable sealing performance are critical to equipment operation.
- Chemical Processing & Corrosive Media
- Semiconductor & Vacuum Equipment
- Pharmaceutical & High-Purity Processing
- High-Temperature Industrial Equipment
- Oil, Gas & Specialized Sealing Systems
FFKM O Ring Manufacturing Capability
We support custom O ring manufacturing based on specified dimensions, cross-sections, material requirements, hardness, and application needs, with prototype development before volume production.
Factory & Production Capacity
- 5,000 m² factory
- 20 production lines
- 20,000+ molds
- 40+ experienced technicians
- Up to 10 million rubber parts per month
Custom Mold Development
We develop molds based on customer drawings, technical specifications, or existing samples, with mold-making accuracy controlled within ±0.01 mm.
Molding & Processing
Available manufacturing processes include:
- Compression molding
- Transfer molding
- Injection molding
- Rubber extrusion
- Die cutting
These manufacturing capabilities help buyers source custom FFKM O rings with greater dimensional flexibility, support for prototype-to-volume production, and a more scalable supply base for repeat orders.
FFKM O Ring Quality Control
-
Material & Compound Verification
Selected FFKM grade, hardness, and material requirements are checked against approved specifications to support chemical compatibility and consistent sealing performance.
-
Dimensional & Visual Inspection
Inside diameter, outside diameter, cross-section, tolerances, flash, cracks, and surface defects are inspected against approved drawings and acceptance criteria.
-
Mechanical Performance Testing
Hardness, tensile properties, elongation, and compression set are evaluated using applicable test methods when required to verify compound performance.
-
Failure Prevention & Performance Validation
Material selection and sample performance are reviewed against operating temperature, chemical media, pressure, and sealing conditions to reduce premature seal failure.
-
Cleanliness & Special Application Requirements
Cleanliness, packaging, and contamination-control requirements are defined according to the application, particularly for vacuum and high-purity systems.
-
Certification & Quality Management
Manufacturing quality systems are supported by IATF 16949, ISO 9001, ISO 14001, and ISO 45001certifications; application-specific product compliance must be confirmed separately.
-
Batch Traceability & Change Control
Material batches, production records, and inspection results are linked where applicable, while changes to approved compounds, tooling, or specifications are subject to customer-agreed review and approval.
B2B Ordering & Supply Support
Sample Lead Time: Custom O ring samples typically take 3–15 days, allowing buyers to evaluate dimensions and suitability before placing bulk orders.
MOQ: MOQ is flexible for custom rubber products and depends on material, dimensions, tooling requirements, and order quantity; stock availability may allow smaller orders.
Bulk Production Lead Time: Standard production typically takes 10–30 days after order details and production requirements are confirmed, depending on order quantity and customization.
Shipping & Delivery Terms: Available delivery terms include EXW, FOB, CFR, and CIF, allowing buyers to select arrangements based on destination, freight costs, and import requirements.
Quality Warranty: We provide a 1-year quality guarantee covering manufacturing defects under normal usage conditions.
FAQ
Q: What Is the Difference Between FFKM and FKM O Rings?
A: FFKM generally offers broader chemical resistance and higher-temperature capability than standard FKM, making it suitable for more demanding sealing environments, although performance depends on the specific compound grade.
Q: Are FFKM O Rings Compatible with All Chemicals?
A: No, compatibility varies by FFKM formulation, chemical concentration, exposure temperature, and contact duration, so the selected compound should be validated against the actual process media.
Q: Can FFKM O Rings Be Used in Semiconductor Vacuum Equipment?
A: Selected FFKM grades are used in semiconductor and vacuum systems, but suitability depends on outgassing, contamination limits, plasma exposure, and the equipment`s operating conditions.
Q: How Do I Choose the Right FFKM O Ring for Steam Applications?
A: Select an FFKM grade specifically rated for the steam temperature, pressure, exposure duration, and thermal cycling rather than relying on its general maximum temperature rating.
Q: Why Do FFKM O Rings Swell or Lose Sealing Performance?
A: Swelling or sealing deterioration can result from chemical incompatibility, excessive temperature, compression set, incorrect groove design, or installation damage.
Q: Can FFKM O Rings Replace Existing FKM or FFKM Seals?
A: Replacement requires checking the original dimensions, compound compatibility, hardness, operating conditions, and groove design because matching size alone does not guarantee equivalent sealing performance.
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