Custom cast iron grate
Our custom cast iron grates are manufactured for fireplace, BBQ, drainage, and industrial ventilation applications, combining high-temperature resistance with long-lasting structural integrity. Each grate is sand-cast from high-grade grey iron and finished with a black lacquer or heat-resistant coating, with fully customizable bar spacing, frame dimensions, and surface pattern. OEM and ODM orders supported with low MOQ and sample production available before mass order commitment.
*Provide your application requirements—such as stress conditions, materials, size range, and even product name. We are always available for customization, so please contact us directly.
Introduction
Why Choose Our Cast Iron Grates?
High-Temperature Resistance — Cast iron naturally withstands sustained temperatures exceeding 800°C, making our grates ideal for fireplace inserts, wood-burning stoves, BBQ grills, and industrial furnace applications without warping or structural failure.
Custom Bar Spacing & Frame Size — Bar width, bar spacing, overall frame dimensions, and mounting configuration are all fully customizable to your drawing or sample, ensuring precise fit for your fireplace opening, drainage channel, or grill body.
Heavy-Duty Frame Construction — The reinforced outer frame provides structural rigidity under repeated thermal cycling and mechanical load, preventing distortion over extended service life.
Multiple Finish Options — Standard black lacquer, high-temperature paint, and raw cast iron finishes available. Powder coating and bespoke RAL colors supported for architectural and decorative applications.
Versatile Design for Multiple Uses — From traditional fireplace log grates and BBQ cooking grates to floor drainage grates and industrial ventilation panels, our manufacturing capability covers the full range of cast iron grate types in a single source.
Specifications
Category Specifications & Technical Details Product Name Custom Cast Iron Grate Scope of Services • Custom Design & Casting (OEM/ODM)
• Pattern & Logo Customization
• Load Capacity Analysis (A15 to F900)
• Engineering Support for Drainage Systems
• Precision CNC Machining for perfect fitMaterials • Ductile Iron (EN-GJS-500-7, ASTM 65-45-12)
• Grey Cast Iron (EN-GJL-200, ASTM Class 30/35)
• Specialized Corrosion-Resistant Alloys
• High-Strength Ductile Iron for airport/industrial useMachining & Casting • Automatic Disamatic Molding (High Consistency)
• Shell & Sand Casting Processes
• CNC Milling for Frame/Grate Interlock
• Surface Grinding & Deburring
• Drilling for Anti-theft Locking SystemsTarget Industries • Road & Highway Construction
• Municipal & Urban Drainage Systems
• Industrial Processing Plants
• Public Parks & Landscaping
• Commercial Parking & Airport RunwaysSurface Treatment • Black Bituminous Coating (Anti-corrosion)
• Epoxy Powder Coating (Custom Colors)
• Hot-Dip Galvanizing (Extreme Weather Resistance)
• Natural Finish (Oiled)
• Black Oxide TreatmentInspection Facilities • Load Capacity Testing Machine (Compression Testing)
• Spectrometer for Chemical Analysis
• CMM (Dimensional Accuracy)
• Hardness & Tensile Strength Testing
• Metallurgical Structure AnalysisOur Advantages 1. High Load Bearing: Designed to exceed standard safety requirements.
2. Precision Casting: Smooth finish and accurate slot dimensions for drainage.
3. Anti-Theft Design: Custom locking mechanisms and heavy-duty hinges.
4. Corrosion Resistance: Multi-layered coatings for 25+ years of service life.
5. Rapid Prototyping: Custom patterns and sizes delivered in short lead times.
Related Products
Let’s talk about your next project !
I don't have complete drawings, can I send inquiry?
Yes, we can help you analyze based on your description, samples and photos.
I am not sure if you can do my parts?
Most of our customers come to us because “others say they can’t do it”.
Are you a factory or a trader?
We are a factory and have a project management team that can handle the technology, cost and delivery at the same time.
Upload Your FilesGet a Quote NowSTEP STP SLDPRT IPT PRT SAT IGES IGS CATPART X_T OBJ STL files