Mechanical Seal Carbon Material Resin Carbon Rod Blank
Description
Technical Parameters
The Resin-Impregnated Carbon Rod Blank for mechanical seals is based on a carbon/graphite matrix. It undergoes resin impregnation and curing to reduce open porosity and fluid permeability, combining the low-friction properties of carbon materials with the sealing adaptability of resin-impregnated materials.
Impregnated graphite datasheet
|
Type |
Impregnated material |
Bulk density (g/cm³) |
Hardness shore (HS) |
Flexural Strength (MPA) |
Compressive strength(MPA) |
Porosity ( %) |
Coeficient of expansion (10-6/oC) |
Max working temperature (oC) |
|
M106 G |
Silver(G) |
2.80 |
80 |
65 |
190 |
2.0 |
900 |
|
|
M106P |
Copper(P) |
2.20 |
80 |
70 |
210 |
3.0 |
6.8 |
400 |
|
M106D |
Antimony(D) |
2.2-2.3 |
85 |
62 |
190 |
2.2 |
7.0 |
480 |
|
M154D |
2.2-2.3 |
70 |
55 |
150 |
2.2 |
7.0 |
480 |
|
|
M106A |
Aluminium alloy(A) |
2.00 |
40 |
60 |
120 |
2.5 |
7.3 |
350 |
|
M106B |
Babbitt Alloy |
2.50 |
80 |
40 |
70 |
7.0 |
5.2 |
220 |
|
M106K |
Resin |
1.75 |
80 |
60 |
176 |
1.0 |
4.0 |
200 |
|
M154K |
1.70 |
70 |
50 |
100 |
1.5 |
3.5 |
200 |
Technical Parameters
|
Parameter |
Typical / Available Specification |
|
Material Type |
Resin-Impregnated Carbon / Graphite |
|
Product Form |
Round Bar / Rod Blank |
|
Appearance |
Black |
|
Density |
1.75–1.90 g/cm³ |
|
Open Porosity |
≤1.5% |
|
Hardness |
80–100 HS |
|
Flexural Strength |
50–85 MPa |
|
Compressive Strength |
130–220 MPa |
|
Service Temperature |
Resin / Grade Dependent |
|
Friction Characteristics |
Self-Lubricating |
|
Impregnation Resin |
Phenolic / Furan / Epoxy, Grade Dependent |
|
Available Diameter |
Ø20–350 mm, Custom |
|
Available Length |
100–1000 mm, Custom |
|
Machining Tolerance |
Up to ±0.005 mm, Part Dependent |
|
Quality Documentation |
COA / Inspection Report |
Dimensions & Customization
Custom Diameter
Bar diameters are customized based on the finished outer diameter and machining allowance, minimizing subsequent cutting requirements and material waste.
Custom Length
Fixed lengths are provided according to processing equipment and batch requirements, optimizing material cutting and utilization rates.
Drawing-Based Production
We support 2D/3D drawing evaluations to confirm material grade, blank dimensions, machining allowances, and critical tolerances prior to production.
Precision Machining
CNC Turning
Capable of machining rotary carbon-graphite components such as mechanical seal rings, shaft sleeves, and bushings, with critical dimensions controlled according to drawings.
Precision Grinding
Precision grinding is performed on sealing faces to control flatness, parallelism, and surface roughness.
Finished Components
In addition to carbon rod blanks, we supply finished components-such as carbon seal rings, bushings, and bearings-manufactured according to customer drawings.
Manufacturing Process
Material Preparation & Molding
Batching, molding, and heat treatment are conducted based on material grade to control matrix density, microstructural uniformity, and dimensional stability.
Resin Impregnation & Curing
Appropriate impregnation processes allow resin to penetrate open pores, while curing stabilizes the material's structure and properties.
Inspection & Machining
Following physical property and dimensional inspections, the material undergoes fixed-length cutting, CNC turning, or precision grinding as specified by the order.
Applications
Mechanical Seal Rings
Mechanical seal rings and carbon-graphite sealing assemblies for centrifugal pumps, chemical pumps, and other industrial equipment.
Pump Components
Low-friction, wear-resistant parts such as carbon rings, shaft sleeves, and bushings for pumps.
Rotary Equipment
Guiding, sealing, and friction components for rotary equipment.
Why Choose Us
500+ Overseas Clients
We have served over 500 clients and exported products to 50 countries, with an annual sales volume of approximately 1,000,000 units; we possess extensive experience in consistently fulfilling large-scale overseas orders.
Comprehensive Range of Carbon-Graphite Products
We offer graphite blocks, rods, tubes, bearings, and bushings, as well as mechanical seals, carbon-graphite vanes, and resin-, antimony-, copper-, and silver-impregnated graphite. Our products cater to applications such as pumps and valves, mechanical seals, automotive components, and metallurgy.
Strict Raw Material Testing
We source graphite raw materials from ISO-certified suppliers and implement batch management and sample retention protocols. Incoming material inspections cover carbon content (≥99.9%), ash content (≤0.1%), density, particle size, and microstructure.
100% Visual Inspection Before Shipment
Production is controlled via Standard Operating Procedures (SOPs), with critical dimensions verified using laser measurement and Coordinate Measuring Machines (CMM). Finished products undergo 100% visual inspection alongside spot checks (30–50%) for critical performance indicators.
FAQ
Q: Can you provide custom carbon rod sizes?
A: Yes. We support customization of diameters, lengths, and machining allowances; blank specifications can also be determined based on 2D/3D drawings.
Q: Can you machine finished mechanical seal rings?
A: Yes. Carbon rods can be machined into mechanical seal rings, shaft sleeves, bushings, and other carbon-graphite components.
Q: How do I select the right material grade?
A: We recommend providing details regarding the medium, temperature, pressure, shaft speed, lubrication conditions, and mating materials so we can select the appropriate material for your specific operating conditions.
Q: Can you match an existing carbon grade?
A: Yes. Upon receipt of the existing material grade, technical data, or a sample, we can evaluate specifications and identify a suitable substitute.
Q: Can I test samples before bulk production?
A: Yes. We can provide samples or standard rod stock for your internal testing and machining validation.
Q: What quality documents can you provide?
A: Depending on order requirements, we can provide a Certificate of Analysis (COA), inspection reports, material datasheets, and relevant compliance documentation.
Q: How is batch consistency controlled?
A: Batch consistency is managed through controls on raw materials, the production process, and inspections of physical properties and dimensions; corresponding production and testing records are maintained.
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