Losier, a trustworthy manufacturer and supplier, from China produces the ASTM A536 Large Resin Sand Ductile Iron Cast Accessories for Heavy Duty Engineering Equipment Parts. These components combine the mechanical strength of cast steel with the vibration damping and wear resistence of ductile iron. Resin sand molding delivers tight dimensional control and a clean surface, reducing machining time and extending service life under consistent high-impact loads.
High strength with ductility Spheroidal graphite structure delivers tensile strength from 65 ksi to 100 ksi and elongation from 12% down to 3%, matching low-carbon steel while retaining cast iron's damping capacity.
Dimensional precision on large parts Resin bonded molds hold their shape against ferrostatic pressure. Castings achieve ISO 8062 tolerances with minimal draft, reducing rough machining allowances by 30–50% compared to green sand.
Fewer internal defects Low gas evolution and good collapsibility of resin sand prevent shrinkage cavities, gas porosity, and hot tears in thick sections (up to 8 inches or more).
Fast cooling rate improves microstructure The rigid mold draws heat quickly, promoting finer nodular graphite and pearlite. This directly increases fatigue life and impact resistance.
Large castings (typically above 500 kg or exceeding 1 meter in dimension) feature thick wall sections, complex internal cavities, and asymmetric geometry. Resin sand molding allows these parts to be cast near‑net shape with consistent nodular graphite structure throughout the entire section. Fast cooling from the rigid mold produces finer pearlite and better nodularity than green sand, even in heavy walls. The result is high load‑bearing capacity, good fatigue resistance, and reduced residual stress after shakeout. Machining allowances are smaller than conventional sand casting, lowering total production time.
| Equipment Type | Typical Cast Components |
|---|---|
| Heavy excavators & loaders | Traveling supports, swing platforms, boom links, tension frames |
| Mining crushers & grinders | Crusher housings, jaw supports, gearbox casings, cone crusher bodies |
| Tunnel boring machines (TBM) | Cutterhead drive housings, thrust cylinder lugs, main drive supports |
| Wind turbines & heavy energy | Hubs, bedplates, large gearboxes, torque arms |
Visual inspection: All ASTM A536 Large Resin Sand Ductile Iron Cast Accessories for Heavy Duty Engineering Equipment Parts are examined after rough machining. Surface discontinuities are assessed against acceptance levels (e.g., magnetic particle testing level 1 or repair standards) per contract.
Dimensional verification – Final inspection occurs after stress relief (heat treatment or natural aging) using ISO 8062 tolerances or drawing‑specific requirements.
Non‑destructive testing (NDT) – Magnetic particle testing (MT) finds surface cracks. Ultrasonic testing (UT) detects internal shrinkage or inclusions. Resonant acoustic testing (NDT‑RAM) performs 100% inspection by signature frequency analysis.
Mechanical testing – Attached test blocks (cast with the same melt and cooling cycle) are used for tensile and elongation verification. This reflects true section properties, unlike separately cast Y‑blocks.
Losier provides a complete manufacturing chain for every ASTM A536 Large Resin Sand Ductile Iron Cast Accessories for Heavy Duty Engineering Equipment Parts. Services include:
1. Casting types
Sand casting, investment casting, die casting, low pressure, centrifugal, gravity, vacuum, extrusion, lost foam, continuous casting.
2. Surface treatment
Spraying, sandblasting, electroplating, heat treatment (annealing, normalizing, austempering).
3. Parts machining
urning, milling, grinding, drilling.
Customers send 2D/3D drawings or sample parts. Losier then runs solidification simulation, selects the optimal grade, designs gating/riser systems, and delivers heat‑treated, machined, and NDT‑inspected components from one facility.
| OEM service | Investment casting | Die casting | Sand casting | Stamping/Forging |
| Weight | 5g-50 kg | 0.5 kg-1000 kg | 0.5 kg-1 ton | |
| Capacity | 200 tons/month | 500 tons/month | 1000 tons/month | 200ton/month |
| Processing tolerance | ± 0.01-0.03 mm | ± 0.02 | ||
| Surface roughness | 6.4 Raum/254 Rauinches | 3.2 Raum/125 Rauinches | 12.5 Raum | |
| Minimum order quantity | 200 pcs | 1000 pcs | 200 pcs | 1000 pcs |
| Casting materials | 304 316 stainless steel carbon steel |
A380 A356 Aluminum Aluminum alloy Zinc alloy |
Gray iron Ductile iron Aluminum |
Stainless steel Aluminum Brass Carbon steel |
| Value-added services | ||||
| Coating | Anodizing galvanizing | Electrophoresis | Powder coating | Electroplating |
| Machining | Turning | Milling | Drilling | Turning |
| Cutting and forming | Key cutting | EDM | Welding | |
| Heat treatment | Hardening | Standardization | Quenching and tempering | Annealing |
A: We are a factory, so we can provide you with competitive prices.
A: Our company (Losier) can provide casting business scope including:
1.Casting type: sand casting, investment casting, die casting, low pressure casting, centrifugal casting, gravity die casting, vacuum die casting, extrusion die casting, lost foam casting, continuous casting
2. Surface treatment: spraying, sand blasting, electroplating, heat treatment, etc.
3. Parts processing: turning, milling, grinding, drilling, etc.
A: In order to quote you as early as possible, please provide us with the following information together with your inquiry.
1. Detailed drawing (2D:PDF,DXF,DWG 3D:STEP,IGS,PRT,etc.)
2. Material requirement (grey cast iron, ductile iron, cast steel, stainless steel, aluminum, etc.)
3. Surface treatment (sandblasting, painting, oxidation, polishing, electrophoresis, plating, etc.)
4. Quantity (per order/per month/per year)
5. Any special request or requirement,such as packing,labeling,delivery, etc.
A: Please send your sample to our factory,then we can copy or provide you with a better solution. If placing an order,please send us a picture or draft with size (thickness, length, height, width), 2D or 3D file.
A: Sample order: 100% prepayment.
B: Order batch: 30% -50% T/T of the total amount as deposit,the rest will be settled before shipment.
A: If there is any quality problem, please provide photos or test report, we will replace the defective goods or refund the funds.
