Key Components:
Tractor lift arms, steering knuckles, wheel hubs, flanges, transmission shift forks, cylinder lugs; harvester header brackets, reel shaft seats, sprockets, gearbox housings, blade holders; rotary tiller blade holders, plowshares, plow shanks, disc harrows, openers; seeder metering housings, opener brackets, covering devices, and more; individual part weights range from 0.2 kg to 80 kg.
Reliable Casting Solutions for Agricultural Machinery
Agricultural machinery is our third key service sector. Our castings are used in high-horsepower tractors, combine harvesters, seeders, rice transplanters, rotary tillers, plows and harrows, straw-returning machines, crop protection equipment, and dryers. Agricultural operations are highly seasonal, and machines must run continuously under heavy loads during busy seasons; any downtime can directly delay field work. Tillage components also face soil abrasion, stone impact, fertilizer and chemical corrosion, and alternating loads, placing strict demands on wear resistance, toughness, and reliability.
With silica sol investment casting and integrated machining capabilities, we provide cast steel parts for transmission systems, chassis and running systems, tillage components, and hydraulic hitch systems for agricultural OEMs and supporting suppliers, balancing durability with the cost control needs of the agricultural machinery industry.
Wear- and Corrosion-Resistant Materials: 65Mn, high chromium cast iron, high manganese steel, and wear-resistant alloy steel are selected for tillage parts to resist soil abrasion and fertilizer corrosion.
Highly Reliable Structural Parts: Transmission and chassis components use 42CrMo, 40Cr, 45 steel, S355JR, and similar materials with quenching and tempering to ensure continuous operation during busy seasons.
Precision Casting Reduces Cost: Silica sol near-net-shape casting reduces machining and welding for complex parts such as shift forks, brackets, and housings, matching the cost-sensitive nature of agricultural machinery.
Flexible Batch Supply: We support both OEM volume orders and small-batch, multi-variety aftermarket parts, with pre-season stocking support before peak farming periods.
Anti-Corrosion Surface Treatment: Painting, e-coating, Dacromet, and hot-dip galvanizing are available for outdoor humid and corrosive environments.
The following are typical examples of agricultural machinery castings (8 items shown); other specifications can be customized based on customer drawings and original equipment models:
| No. | Part Name | Common Materials | Process / Remarks |
|---|---|---|---|
| 1 | Tractor Lift Arm | 42CrMo / S355JR / 40Cr | Quenched and tempered, hydraulic hitch load-bearing part |
| 2 | Steering Knuckle (Front Axle) | 42CrMo / 40Cr / 20MnCr5 | Quenched and tempered + NDT, chassis safety part |
| 3 | Plowshare / Plow Tip | 65Mn / High Chromium Cast Iron / High Manganese Steel | Heat-treated hardening, wear and impact resistant |
| 4 | Rotary Tiller Blade Holder | 42CrMo / 40Cr / 65Mn | Impact resistant, fracture resistant, weldable |
| 5 | Harvester Sprocket / Gearbox Housing | 45 Steel / 40Cr / QT500-7 | CNC-machined hole system, tooth-surface hardening |
| 6 | Wheel Hub / Flange Plate | 45 Steel / QT500-7 / 42CrMo | Bearing-seat machining, for running systems |
| 7 | Seeder Opener Bracket | S355JR / 40Cr / Q355B | Welded structure, good toughness |
| 8 | Transmission Shift Fork | 40Cr / 45 Steel / 20MnCr5 | Precision casting, surface hardened wear area |
- Mechanical Properties: Lift arms, steering knuckles, and other quenched and tempered parts are tested batch by batch for hardness and tensile properties; 42CrMo hardness reaches HB 280-320.
- Wear-Part Hardness: Plowshares and blade holders are hardness-tested after heat treatment; quenched 65Mn reaches HRC >=50, while high chromium cast iron reaches HRC >=58.
- Non-Destructive Testing: Safety parts such as steering knuckles and lift arms undergo 100% MT inspection, with UT sampling for key parts.
- Dimensional Accuracy: Machined parts follow drawing tolerances; mating hole systems reach +/-0.05 mm, with first-article CMM inspection.
- Corrosion Protection: E-coating, Dacromet, painting, or hot-dip galvanizing can be applied according to customer requirements, with salt-spray duration based on the applicable standard.
- High-horsepower tractor lift arms and steering knuckles: 42CrMo quenched and tempered, supplied to tractor OEMs with annual volume of tens of thousands of pieces.
- Combine harvester gearbox housings and sprockets: QT500-7/40Cr, precision casting + machining, used for wheat and rice harvesters.
- Rotary tiller blade holders and plowshares: 65Mn/high chromium cast iron, wear and impact resistant, supplied to rotary tiller and plow manufacturers.
- Seeder openers and brackets: S355JR welded structural parts, supporting multi-specification customization.
- Recommended combinations: Lift arm + cylinder lug + connecting pin sets; steering knuckle + wheel hub + flange chassis sets; blade holder + blade tillage component sets.
Frequently Asked Questions (FAQ)
We match material, heat treatment, surface protection, and supply plans to agricultural operating seasons, soil conditions, and OEM cost targets.
How do agricultural castings help control cost?
Silica sol investment casting can near-net-shape complex parts such as shift forks, brackets, and housings, significantly reducing machining allowance and welding steps compared with sand castings, which lowers total cost.
Are tillage components wear-resistant in sandy or stony soil?
For sandy or stony soil, we recommend quenched 65Mn or high chromium cast iron plowshares and blade holders for high hardness and wear resistance. For sticky soil and impact conditions, high manganese steel or alloy structural steel can balance toughness and wear life.
Can you provide e-coating, painting, or other corrosion protection?
Yes. We can provide e-coating, Dacromet, painting, and hot-dip galvanizing to withstand outdoor humidity and fertilizer or chemical corrosion. Salt-spray testing can follow customer standards.
Can supply be guaranteed before the busy farming season?
Yes. We can plan production and inventory according to seasonal demand, supporting both volume orders and small-batch aftermarket parts to help ensure uninterrupted supply during peak seasons.
Request a Quote for Agricultural Machinery Castings
Please send part drawings, material requirements, heat treatment or surface treatment requirements, and annual volume; we will provide a quotation within 24 hours.