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+86-15763932413
+86-15763932413
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Qingdao Chifine Machinery Co.,Ltd is one famous company in China which specialized in various metal casting products with over 10 years experience located in Qingdao China.It covers a comprehensive range of forging, stamping, sand casting, investment casting, die casting and machining and was widely used in Agriculture machinery, Motor Vehicle, Architecture,Railway and Engineering.
Chifine
Ductile Iron Custom Flywheel for Ag Tractor is a critical power transmission component engineered to stabilize engine operation in agricultural machinery, where variable loads (from plowing to harvesting) and harsh operating conditions (dust, moisture, vibration) demand exceptional durability. Flywheels store rotational energy during power strokes and release it during non-power strokes, ensuring smooth operation of tractors, combines, and harvesters—reducing engine stress and improving operator comfort. Our custom flywheels are designed for engines ranging from 30 HP to 300 HP, with outer diameters from 300mm to 600mm, meeting the specific inertia requirements (calculated via torque-speed analysis) of different agricultural applications, including row cropping, orchards, and large-scale farming .
The flywheels are manufactured from ductile iron ASTM A536 Grade 100-70-03, selected for its high tensile strength and fatigue resistance. This material achieves a tensile strength of 690 MPa, yield strength of 483 MPa, and elongation of 3%, with a Brinell hardness of 220-260 HB after heat treatment (normalizing at 900°C followed by air cooling) . Key alloying elements include 0.04-0.06% magnesium (for spheroidal graphite formation, improving toughness) and 0.2-0.4% molybdenum (to enhance high-temperature strength, critical for engines operating at 90-110°C). For extreme load applications (e.g., 300 HP tractors), we offer 42CrMo alloy steel inserts in the ring gear area, providing surface hardness up to 55 HRC after carburizing (0.8-1.2mm case depth) for enhanced wear resistance .
The flywheel’s moment of inertia is precisely calibrated (range: 5-25 kg·m²) to match engine displacement (1.5L to 8.0L), reducing speed fluctuations by 30-40% during tillage or harvesting operations. This stability minimizes stress on crankshafts (extending crankshaft life by 50%) and improves fuel efficiency by up to 5% by reducing energy loss from speed variations . Dynamic balancing (to G6.3 standard) ensures vibration levels below 0.1 mm/s, preventing premature wear of engine mounts.
The ring gear teeth undergo induction hardening to a depth of 1.5-2mm, ensuring resistance to abrasive wear from starter motor engagement (withstanding 10,000+ start cycles without tooth damage). The friction surface features a phosphate coating (5-10μm thickness) to enhance clutch compatibility, reducing slippage by 20% and improving power transmission efficiency . Surface roughness of the friction face is controlled to Ra 1.6μm for consistent clutch engagement.
All surfaces are treated with epoxy primer and topcoat (total thickness 80-100μm) to resist corrosion from crop residues, fertilizers (urea, ammonium nitrate), and moisture, passing 500-hour salt spray tests per ASTM B117 with minimal rust formation. The hub bore is machined to H7 tolerance for precise fit with crankshafts (clearance 0.01-0.03mm), eliminating vibration-induced fatigue and reducing noise levels by 10 dB .
We provide fully customized flywheel solutions tailored to agricultural machinery:
• Engineering collaboration: FEA (Finite Element Analysis) to optimize weight distribution and inertia based on tractor model (e.g., John Deere, New Holland) and application, with simulation reports provided within 5 business days
• Ring gear customization: Module sizes from 2.5 to 6, with tooth counts from 100 to 250, compatible with all major starter motor brands (Delco Remy, Bosch) and featuring optional helix angles (15°-30°) for quiet operation
• Surface treatment options: Anti-corrosion coatings (epoxy, polyurethane), friction-enhancing finishes (graphite impregnation), or custom paint matching OEM specifications (e.g., brand colors)
• Prototype to production: 3D-printed prototypes (using sand casting patterns) in 2 weeks, production tooling in 8 weeks, with volume production up to 5,000 units/year and batch testing for each production run
• Quality documentation: Material certificates (EN 10204 3.1), dimensional reports (CMM inspection), and fatigue test data (per SAE J1211 standards) with full traceability from raw material to delivery
Ductile Iron Custom Flywheel for Ag Tractor is a critical power transmission component engineered to stabilize engine operation in agricultural machinery, where variable loads (from plowing to harvesting) and harsh operating conditions (dust, moisture, vibration) demand exceptional durability. Flywheels store rotational energy during power strokes and release it during non-power strokes, ensuring smooth operation of tractors, combines, and harvesters—reducing engine stress and improving operator comfort. Our custom flywheels are designed for engines ranging from 30 HP to 300 HP, with outer diameters from 300mm to 600mm, meeting the specific inertia requirements (calculated via torque-speed analysis) of different agricultural applications, including row cropping, orchards, and large-scale farming .
The flywheels are manufactured from ductile iron ASTM A536 Grade 100-70-03, selected for its high tensile strength and fatigue resistance. This material achieves a tensile strength of 690 MPa, yield strength of 483 MPa, and elongation of 3%, with a Brinell hardness of 220-260 HB after heat treatment (normalizing at 900°C followed by air cooling) . Key alloying elements include 0.04-0.06% magnesium (for spheroidal graphite formation, improving toughness) and 0.2-0.4% molybdenum (to enhance high-temperature strength, critical for engines operating at 90-110°C). For extreme load applications (e.g., 300 HP tractors), we offer 42CrMo alloy steel inserts in the ring gear area, providing surface hardness up to 55 HRC after carburizing (0.8-1.2mm case depth) for enhanced wear resistance .
The flywheel’s moment of inertia is precisely calibrated (range: 5-25 kg·m²) to match engine displacement (1.5L to 8.0L), reducing speed fluctuations by 30-40% during tillage or harvesting operations. This stability minimizes stress on crankshafts (extending crankshaft life by 50%) and improves fuel efficiency by up to 5% by reducing energy loss from speed variations . Dynamic balancing (to G6.3 standard) ensures vibration levels below 0.1 mm/s, preventing premature wear of engine mounts.
The ring gear teeth undergo induction hardening to a depth of 1.5-2mm, ensuring resistance to abrasive wear from starter motor engagement (withstanding 10,000+ start cycles without tooth damage). The friction surface features a phosphate coating (5-10μm thickness) to enhance clutch compatibility, reducing slippage by 20% and improving power transmission efficiency . Surface roughness of the friction face is controlled to Ra 1.6μm for consistent clutch engagement.
All surfaces are treated with epoxy primer and topcoat (total thickness 80-100μm) to resist corrosion from crop residues, fertilizers (urea, ammonium nitrate), and moisture, passing 500-hour salt spray tests per ASTM B117 with minimal rust formation. The hub bore is machined to H7 tolerance for precise fit with crankshafts (clearance 0.01-0.03mm), eliminating vibration-induced fatigue and reducing noise levels by 10 dB .
We provide fully customized flywheel solutions tailored to agricultural machinery:
• Engineering collaboration: FEA (Finite Element Analysis) to optimize weight distribution and inertia based on tractor model (e.g., John Deere, New Holland) and application, with simulation reports provided within 5 business days
• Ring gear customization: Module sizes from 2.5 to 6, with tooth counts from 100 to 250, compatible with all major starter motor brands (Delco Remy, Bosch) and featuring optional helix angles (15°-30°) for quiet operation
• Surface treatment options: Anti-corrosion coatings (epoxy, polyurethane), friction-enhancing finishes (graphite impregnation), or custom paint matching OEM specifications (e.g., brand colors)
• Prototype to production: 3D-printed prototypes (using sand casting patterns) in 2 weeks, production tooling in 8 weeks, with volume production up to 5,000 units/year and batch testing for each production run
• Quality documentation: Material certificates (EN 10204 3.1), dimensional reports (CMM inspection), and fatigue test data (per SAE J1211 standards) with full traceability from raw material to delivery
