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Copper Roves（Cup-type flat washers） are a common fastener accessory, mainly used to fix and protect fasteners such as bolts and nuts to prevent them from loosening or wearing. Copper Roves（Cup-type flat washers）are usually made of metal materials, such as stainless steel or aluminum alloy, and have high strength and corrosion resistance.Whether you're working on mechanical equipment, automobile manufacturing, or electronic assemblies, Copper Roves are engineered to meet your needs with precision and excellence.
| Quantity: | |
|---|---|
Copper Roves | |||
1/4-20 | 5/16-18 | 3/8-16 | 1/2-13 |
9/16-12 | 5/8-11 | 3/4-10 | M3-0.5 |
M4-0.7 | M5-0.8 | M6-1.0 | M8-1.25 |
M10-1.5 | M12-1.75 | M16-2.0 | M20-2.5 |
1. High-purity alloy base material, stable and reliable physical properties: The product is made of industrial-grade QSi3-1 and C65100 standard silicon bronze alloy, with a precise ratio of copper, silicon, and manganese alloy elements. The internal structure of the base material is dense and uniform, free from defects such as pores, sand holes, cracks, and inclusions. The material has balanced hardness and moderate toughness, avoiding the problems of easy oxidation, deformation, and insufficient strength of ordinary iron and brass gaskets. The performance of the original material far exceeds that of conventional general-purpose gaskets.
2. Innovative integrated structure, high fit and conformability: Unlike traditional single-plane gaskets, this product adopts an integrated cup-arc + flat structure design. The arc-shaped cup can perfectly fit the contour of the fastener end, and the flat base surface tightly fits the equipment mounting end face. The double-fit structure can adapt to small installation gaps, effectively fill assembly tolerances, and eliminate assembly problems such as loose connections, looseness, and poor fit. It is compatible with various standard and non-standard fasteners.
3. Precision CNC Manufacturing Process, Excellent Finished Product Accuracy: The entire production process relies on an integrated automated production line encompassing CNC precision stamping, precision shaping, mirror polishing, and fine deburring. Products have smooth edges without curling, burrs, or sharp edges. Key parameters such as inner and outer diameters, thickness, and concentricity have minimal errors, resulting in extremely high product consistency. This allows for direct mass assembly and significantly improves installation efficiency.
4. Wide Temperature Range and Strong Compatibility: Possessing excellent high and low temperature resistance, it is not prone to cracking or shrinkage at low temperatures, and does not soften, deform, or fail at high temperatures. It can operate stably in extreme temperature ranges from -50℃ to 250℃, making it suitable for harsh outdoor and industrial environments with alternating hot and cold temperatures and large day-night temperature differences.
5. Unique inherent properties, suitable for precision scenarios: It has excellent non-magnetic, high thermal conductivity and low friction properties, excellent insulation and anti-interference performance, can effectively isolate electromagnetic signal interference, quickly dissipate the heat generated by equipment operation, and avoid the operation failure of precision equipment due to magnetic fields and high temperature. It is suitable for use with high-end precision electromechanical equipment.
1. Corrosion and corrosion resistant, long-lasting and durable: Silicon bronze alloy possesses excellent corrosion and oxidation resistance, effectively resisting atmospheric oxidation, rainwater erosion, seawater salt spray, and weak acid and alkali corrosion. It is not prone to rusting, discoloration, or damage in complex working conditions such as humidity and corrosion. Compared to ordinary iron or brass gaskets, its service life is significantly extended, effectively reducing the frequency of equipment parts replacement and lowering equipment downtime maintenance costs.
2. Pressure and fatigue resistant, anti-loosening and leak-proof: Through professional hardening and strengthening treatment, the product's tensile strength and fatigue resistance are significantly improved. It bears pressure evenly, effectively dispersing the concentrated pressure generated by bolt tightening, protecting the equipment installation surface from damage and cracking. Under long-term high-frequency vibration and high-load operation, it is not prone to loosening, deformation, or collapse, maintaining excellent tightness and sealing performance, preventing equipment leakage and loosening failures.
3. Low friction and anti-jamming, lower wear: The base material has an extremely low coefficient of friction and outstanding wear resistance. Under reciprocating motion and high-frequency vibration conditions, it can significantly reduce frictional wear between fasteners and equipment contact surfaces, effectively preventing bolts and washers from seizing and jamming, reducing equipment operating noise, and lowering mechanical wear. It is suitable for industrial equipment operating continuously for 24 hours.
4. Non-magnetic insulation, suitable for precision electromechanical equipment: Completely non-magnetic and with excellent insulation, it will not generate electromagnetic interference and will not be affected by external magnetic fields. It can comprehensively protect the operating accuracy and signal stability of precision instruments and electrical control systems, making it a dedicated gasket for industrial control equipment, electronic precision instruments, and low-voltage equipment.
5. Maintenance-free design, outstanding cost-effectiveness: Adopting a native metal surface process, without electroplating, spraying, or chemical coatings, it eliminates the problems of coating peeling, flaking, and equipment contamination. The product has extremely strong weather resistance, requiring no regular inspection or maintenance after installation. One-time assembly allows for long-term stable service, with overall operating costs far lower than ordinary gasket products.
With its stable overall performance and excellent adaptability to various operating conditions, silicon bronze cup-shaped flat gaskets are widely used in various high-end industrial manufacturing, precision equipment, and special working conditions, making them indispensable fastening and sealing accessories for multiple industries:
1. Marine and Ocean Engineering: Suitable for offshore wind power platforms, marine power systems, marine valves, marine electrical control equipment, marine exploration instruments, etc., specifically designed to withstand seawater salt spray and high humidity corrosion conditions, ensuring long-term stable operation of equipment.
2. Precision Electrical and Intelligent Control Systems: Applicable to high and low voltage switchgear, automated control equipment, precision sensors, instruments, electronic connectors, and low-voltage control systems, etc., relying on its non-magnetic insulation and stable heat dissipation characteristics to ensure accurate equipment operation.
3. Chemical and Environmental Protection Corrosion-Resistant Equipment: Matching chemical pipeline connectors, corrosion-resistant reaction equipment, sewage treatment devices, chemical pumps and valves, desulfurization and denitrification equipment, etc., resistant to mild acid and alkali corrosion, preventing leakage and corrosion failure at connection points.
4. General Machinery and Power Equipment: Widely used in pumps, valves, transmission machinery, generator sets, construction machinery, and general electromechanical equipment. Through vibration damping, pressure distribution, and wear-resistant fastening, it improves the overall operational stability of mechanical equipment.
5. New Energy and High-End Equipment: Adapted to high-end fields such as photovoltaic equipment, wind power equipment, aerospace components, and high-precision machinery. With its wide-temperature stability and high reliability, it meets the stringent production and operation standards of high-end equipment.
The factory supports full-specification standardized production and personalized non-standard customization, covering the two major mainstream size systems of metric and imperial units, and is compatible with various domestic and foreign equipment assembly standards. The core parameters are as follows: 1. Compatible material grades: industrial standard QSi3-1, C65500. C65500 Silicon Bronze Alloy
2. Surface Finish: Original metallic color, no electroplating, no coating, no oxide layer
3. Standard Size Range: Metric M6-M20 full specifications; product thickness 1mm-3mm can be customized as needed; inner and outer diameters and cup curvature can be customized.
4. Product Grade: High-strength hardened industrial grade, with pressure resistance, relaxation resistance, and fatigue resistance.
5. Machining Accuracy: Key dimensional tolerances controlled within ±0.02mm; flatness, concentricity, and perpendicularity meet high-end industrial assembly standards.
6. Single Item Weight: 0.2g-50g (fluctuates depending on specific size and specifications)
7. Standards: Strictly follows GB/T 95, ASME B18.21.1, DIN, JIS, and other international and domestic standards; non-standard drawings can be customized.
1. Refined Protective Packaging: Individually packaged in anti-static sealed bags to prevent moisture oxidation and static electricity buildup during transport.
2. Reinforced Bulk Packaging:Bulk orders are sealed in thickened industrial cardboard boxes reinforced with stretch film. The boxes are pressure-resistant and shock-resistant, effectively resisting the impact of logistics bumps, compression, and stacking, preventing damage and scattering of goods.
3. Multi-Channel Logistics and Distribution:Supports various delivery methods including express land transport, expedited air freight, and full truckload logistics. Solutions can be flexibly matched to meet customer order timeliness requirements. All orders support insured transportation, with full tracking and traceability to ensure safe transport.
4. Efficient Delivery Time: Standard in-stock items are readily available, packaged, and shipped. Customized non-standard products are produced and delivered strictly according to the agreed-upon production schedule. Dedicated personnel track order progress and provide real-time updates on production and logistics information.
Marine equipment manufacturer's real-world review: We've been a long-term supplier of this silicon bronze cup-shaped flat gasket, specifically designed for our marine equipment. The salt spray at the seaside causes severe corrosion; ordinary gaskets rust and fail within months. This gasket, made of solid, pure silicon bronze with no adulteration, boasts superior corrosion resistance. It fits tightly during installation, provides excellent pressure distribution, and has remained stable for over a year without any loosening or leakage. Its consistent quality makes it a top choice for marine equipment.
Automation and electromechanical company's review: Our precision electrical control equipment has extremely high requirements for components, particularly regarding electromagnetic interference and heat buildup. This non-magnetic silicon bronze flat gasket perfectly meets our equipment needs, offering rapid heat dissipation, no magnetic field interference, and consistently stable equipment operating accuracy. The product is finely crafted with no burrs, precise dimensions, and allows for seamless batch assembly without secondary adjustments, significantly improving our production and assembly efficiency.
Chemical equipment manufacturer's review: Chemical workshops present complex conditions with frequent acid and alkali fumes and high humidity, demanding stringent requirements for the corrosion resistance and stability of gaskets. This cup-shaped flat gasket features a reasonable structural design, providing excellent sealing and fastening. It remains resistant to oxidation and loosening even after long-term use, preventing leaks. The manufacturer offers a complete range of specifications, with ample stock of standard parts and short lead times for custom-made non-standard components. Supply is stable and reliable, ensuring worry-free long-term cooperation.
Hardware accessories wholesaler's review: Compared to similar products from multiple suppliers, this silicon bronze flat gasket has significant advantages in craftsmanship and materials. Each batch exhibits extremely high consistency in size, color, and hardness, with no defective products or flaws. Customer feedback after installation is excellent; it is wear-resistant, durable, has a low failure rate, and boasts a high repurchase rate. The stable quality of the supply makes it a high-performance, cost-effective industrial-grade gasket.
