Losier, a China casting and machining manufacturer and supplier, can provide high quality 80-55-06 Heavy High-strength Resin Coated Sand Ductile Iron Auto Parts Casting Spring Seat. This component combines high tensile strength, impact resistance, and vibration damping for automotive suspension parts. Resin coated sand molding delivers tight tolerances and a smooth as-cast surface, reducing machining time and extending service life.
The three numbers in 80-55-06 represent minimum mechanical requirements: 80 ksi tensile strength, 55 ksi yield strength, and 6% elongation. This ASTM A536 grade offers an excellent balance of strength and ductility. The nodular graphite structure delivers impact resistance and vibration damping, making it suitable for stressed automotive components like spring seats, brackets, and suspension arms.
High strength with wear resistance
Handles dynamic stresses from vehicle suspension and friction from coil springs.
Superior vibration damping
Absorbs road shocks and reduces transmitted vibration, improving ride comfort and component life.
Excellent machinability
80-55-06 Heavy High-strength Resin Coated Sand Ductile Iron Auto Parts Casting Spring SeatAllows precision CNC machining to meet tight dimensional requirements for spring seat mounting surfaces.
Fatigue resistance
The nodular graphite structure resists crack initiation under millions of load cycles.
Resin coated sand casting offers tighter dimensional accuracy with tolerances as tight as ±0.35 mm, compared to the larger allowances typically required by green sand. It also provides a smoother as-cast surface finish of Ra 3–6 µm, which greatly reduces grinding and machining time. The high strength of the resin sand mold allows for a 50–75% reduction in draft angle, saving material and lowering finishing costs. Overall, this process delivers better cost control by achieving lower per‑part cost than investment casting while offering higher precision and quality than green sand.
Iron castings Ductile iron, gray iron, and malleable iron for automotive, machinery, and structural applications.
Aluminum castings Sand casting, gravity die casting, and low pressure for engine parts, housings, and heat sinks.
Steel castings Carbon and alloy steel for heavy equipment, mining, and rail components.
Copper & brass castings Electrical fittings, valves, and decorative parts.
Die casting Aluminum and zinc alloy die cast parts for high‑volume production.
Gravity & low pressure casting Permanent mold castings with refined microstructure for structural components.
Machining & finishing In‑house CNC turning, milling, drilling, grinding, and surface treatment (spraying, sandblasting, electroplating, heat treatment).
Losier supports custom projects from prototyping to mass production. Customers send 2D/3D drawings, and the company optimizes process and cost to deliver cost‑effective 80-55-06 Heavy High-strength Resin Coated Sand Ductile Iron Auto Parts Casting Spring Seat and other cast components.
| Sand mold types | Binder system | Precision (CT grade) | Surface roughness (μm) | Applications |
| Clay wet sand | Bentonite + water | CT10-12 | Ra25-50 | Engine blocks, flywheel housings |
| Resin sand | Furan resin / phenolic resin | CT8-10 | Ra12.5-25 | Gearbox housings, brackets |
| Water glass sand | CO₂ curing | CT9-11 | Ra20-40 | Large structural parts |
| 3D printing sand | Phenolic resin + laser sintering | CT6-8 | Ra6.3-12.5 | Turbocharger housings |
| Materials |
1. Sand Casting & Gravity Casting & Low-Pressure Die Casting: A356/A319/A413/ZL101/ZL102/ZL104/ZL107/LM6 // LM/20/LM25/EN AC-42100/EN AC-42200/EN AC-43000/EN AC-43200/EN AC-43300/EN AC-43400/EN AC-44200/EN AC-44300/EN AC-46000/EN AC-46200 2. High-Pressure Die Casting: A380/A390/A360/ADC10/ADC12/ENAC-43400/ENAC-44300/ENAC-44400/ ENAC-46000/ENAC-46100/ENAC-46200/ENAC-46500/ENAC-47100 3. CNC Machining Casting: 6061-T6/6063-T6 |
| Services | Our capabilities include sand casting, gravity casting, high-pressure die casting, low-pressure die casting, and CNC machining. |
| Casting Equipment |
1. High-Pressure Die Casting: 125T/180T/250T/280T/500T/800T/1250T 2. Gravity Casting Machines: 5 production lines 3. Low-Pressure Die Casting: 1 production line 4. Sand Casting Machines: 6 production lines 5. Degassing Equipment and Material Refining Facilities 6. Machining: 5 CNC Machines; 3 Milling Machines; 3 Turning Machines; 10 Thread Drilling Machines |
| Testing Facilities | Spectrometer, tensile testing machine, hardness testing machine, CMM dimensional reports |
| Standards | ASTM, DIN, JIS, EN, ISO, GB standards |
| Software | Professional/Electronic, UG, SolidWorks, CAD, PDF |
| Precision Machining | CNC turning, milling, drilling, grinding, cutting, reaming, and threading |
| Finished Products | Polishing, sandblasting, heat treatment, painting, powder coating, anodizing, electroplating, chrome plating, and mirror polishing. |
| Materials | A variety of aluminum castings: including automotive parts, railway parts, medical parts, marine parts, lighting parts, pump bodies, valve parts, architectural parts, furniture parts, and more. |












