For more than 10 years, Qingdao Tuoyuan Metal has focused on metal processing, and today we specialize in developing and manufacturing CNC machined stainless steel turned fasteners for agricultural machinery. We use 304/316L corrosion-resistant stainless steel as our main base material, and pair it with CNC turning technology that achieves ±0.01mm micron-level precision. This lets us build fasteners that work well in the tough conditions agricultural machinery faces—like high humidity, lots of dust, and heavy loads.
Our fasteners are used at key connection points in agricultural machinery’s transmission, tillage, and harvesting systems. They stand out for their ability to resist corrosion from pesticides, handle temperature changes between -40℃ and 120℃, and stay tight even when the machinery vibrates. Right now, we supply these products to agricultural machinery brands in over 20 countries, including those in Europe, America, Japan, and South Korea, helping keep their equipment running smoothly.
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Specification Category |
Specific Parameters |
Agricultural Machinery Adaptation Value |
|
Machining Accuracy |
Dimensional accuracy of ±0.01mm, coaxiality ≤ 0.02mm |
Meets the high-precision assembly requirements of agricultural machinery, preventing connection loosening caused by dimensional deviations and reducing vibration and abnormal noise. |
|
Material Selection |
304 stainless steel (neutral salt spray resistance ≥ 500 hours), 316L stainless steel (acid-alkali salt spray resistance ≥ 1000 hours) |
Resists corrosion from farmland water-fertilizer and pesticides, adapting to harsh environments like high-humidity paddy fields and coastal farms. |
|
Structural Types |
Cylinder head, countersunk head, hexagon head; external thread specifications M3-M20; length 5mm-150mm |
Covers diverse installation needs in agricultural machinery, such as fixing transmission gears, connecting plowshares, and positioning harvester cutter shafts. |
|
Performance Indicators |
Tensile strength ≥ 500MPa, hardness HRC 25-30, torque deviation ≤ ±5% |
Withstands heavy-load impacts during agricultural machinery operation (e.g., tillage resistance, vibration of harvesting machinery), preventing fracture and thread slipping. |
|
Surface Treatment |
Natural passivation (enhances rust resistance), environmental-friendly galvanizing (salt spray protection ≥ 10 years) |
Further improves corrosion resistance, adapting to farmlands with different climates—such as low-temperature freeze-thaw in northern regions and high humidity and heat in southern regions. |
Stainless Steel Turned Fasteners, with their core advantages of corrosion resistance, high precision and strong stability, are widely adapted to key connection scenarios of equipment in multiple industries: in the field of agricultural machinery, as the core connector of agricultural machinery transmission, tillage and harvesting systems, they can fix the rotary tiller cutter shaft and blade, splice the plowshare bracket, and withstand soil friction and field water and fertilizer erosion.
They can also be adapted to the conveyor belt roller shaft of wheat/corn harvester and the thresher gear connection to prevent loosening and falling off. They can also fix the seeding machine seed metering gear box and the fertilizer machine metering valve to resist pesticide corrosion and ensure the accuracy of sowing and fertilizing.
In the field of industrial equipment, they are adapted to the positioning and fastening of machine tool spindle components (relying on ±0.01mm high precision to ensure deviation-free operation), compressor pipeline flange sealing connection (304/316L Stainless steel is resistant to industrial lubricant corrosion) and for fixing roller bearing seats of conveying equipment (resistant to vibration and not easy to rust).
In the field of medical equipment, it is used for connecting precision components inside blood analyzers (meets medical-grade hygiene standards and does not release harmful substances) and fixing surgical instrument structures (surface passivation treatment makes it easy to clean and resistant to disinfectant corrosion); in the field of marine engineering, it is suitable for fastening ship deck machinery components (316L material is resistant to salt spray for over 1000 hours and resists seawater corrosion) and fixing sensors inside ocean buoys (withstands seawater temperature differences of -20℃~60℃).
In the field of electronics and electrical, it can be used for splicing communication base station signal transmitter shells (prevents outdoor moisture and rust) and installing fixing columns of electronic test instrument circuit boards (high-precision adaptation to the needs of miniaturization of equipment), fully meeting the performance and scenario adaptation requirements of different industries for connectors.
Address
Xishanqian Village, Huanxiu Street, Jimo District, Qingdao City, Shandong Province, China
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