This Ductile Iron Adjustable Mounting Bracket is a core structural and load-bearing component designed for heavy equipment adjustable support frames . It is manufactured by our in-house Sand Casting (Green Sand Molding) + CNC precision machining process to achieve high strength, precise slot and pivot geometry, and reliable load distribution. The use of ductile iron QT450-10 provides an excellent balance of high tensile strength, superior elongation and impact toughness, and excellent fatigue resistance under cyclic loading — delivering a bracket that resists cracking under heavy and shifting operational loads, maintains precise adjustment functionality across slotted mounting features, and provides stable structural support across wide temperature ranges and demanding service conditions.
Matech's one-stop approach, covering pattern making, green sand casting, annealing/ferritizing heat treatment, CNC machining (adjustment slots, pivot bores, mounting faces, threaded holes), dimensional inspection, surface treatment (anti-rust primer and finish coating), and engineered packing, ensures this mounting bracket offers excellent dimensional accuracy on slotted and pivoting features, tight tolerances on mounting interfaces, and a ready-to-install finish — performing reliably in demanding heavy-equipment support and positioning applications.
Custom Sand Casting QT450 Iron Engine Accessory Adjustable Mounting Bracket
| Specification | Details for This Case | Matech’s Capability / Notes |
| Alloy Grade | QT450 | We work with Gray Cast Iron(HT150, HT200, HT250, HT300),Ductile Cast Iron(QT400-18,QT500-7,QT600-3,QT700-2),Vermicular Graphite Cast Iron(RuT300,RuT400),Alloy Cast Iron(Heat-resistant,Corrosion-resistant grades),with material certification provided |
| Unit Weight | 2 kg | We can handle iron casting parts from 0.1 kg ~ 50 kg |
| Overall Dimensions | 200 × 80 × 150 mm | Maximum machining size approximately 1200 × 1000 × 600 mm, subject to drawing confirmation |
| Casting Tolerance | CT8-CT10 (GB/T 6414) | Achieved via our in-house precise tooling and stable assembly line production process |
| Machining Tolerance | ±0.02mm | Achieved by 3/4/5-axis CNC centers. Tighter tolerances can be discussed,with best achievable tolerance up to 0.005 mm |
| Surface Roughness | Ra 25 μm (unmachined surface) / Ra 1.6 µm (machined surface) | Typical machined surface roughness can reach Ra 0.8–3.2 μm (turning/milling); Ra 0.4–0.8 μm achievable after grinding |
| Min. Wall Thickness | 8mm | We specialize in thin-wall castings; min. 3.0 mm (for iron castings)feasible depending on geometry. |
| Heat Treatment | Artificial Aging Treatment (Stress-Relief Annealing) | Annealing, normalizing available for iron castings |
| Surface Treatment | Black Painting | Options: Sandblasting / Shot Blasting, Painting (Spraying / Dipping),Dacromet Coating,Black Electrophoresis (ED-Coating),Anti-rust Oil etc. Corrosion resistance per your spec. |
| Application | Vehicles and machinery | We serve Mining, automotive, industry equipment, machinery, pump & valve, new energy, etc. |
| MOQ | 500 pcs | Flexible MOQ, starting from prototype/small batch quantities. |
| Sample Lead Time | 25-40 working days (with new tooling) | Defined upon drawing review. Expedite options available. |
| Production Lead Time | 30-45 working days | Based on order quantity and complexity, confirmed in contract. |
| Drawing Formats | STEP, IGES, X_T, DWG, PDF | We process all standard 2D/3D formats. |
| Customizable | Manufactured according to drawings or samples | Every aspect—material, geometry, tolerance, finish—is built to your design. |
| Certification | ROHS,ISO 9001:2015 | Material certificates, dimensional inspection reports, and PPAP Level 3 documentation available upon request for automotive and critical components |
| Packing | Custom PE foam + plywood crate | Engineered packing designed for your part’s specific fragile/critical areas. |
Customization Options
Every casting project starts with your unique design and requirements. Whether it's iron, steel, or aluminum, we tailor every aspect of the manufacturing process to your exact specifications. Below are the key dimensions you can customize with Matech — your drawing is our only standard.
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Dedicated Cross-Functional Support
A dedicated project manager oversees the entire process — from design review to final delivery — ensuring efficient communication at every stage.
Fast Response & Transparent Communication
Quotations are typically provided within 24–48 hours. Production progress is updated regularly through photos and production data, with continuous customer feedback collection throughout the project.
After-Sales Support
Full batch traceability and 24-hour response to quality-related issues ensure reliable post-delivery support.
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