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High Precision Wax Casting | Custom Metal Casting Solutions by Xinlong Metal 2026
2026-05-29
📋 Quick Overview
Wax casting (lost wax casting) is a precision metal forming process that uses disposable wax molds to produce near-net-shape metal parts. This 2026 industry guide breaks down all practical details of the technology based on first-hand production data from Dalian Xinlong Metal, a leading Chinese metal casting manufacturer with 18 years of operating history.
Core Processing Steps of Industrial Wax Casting
In practice, Xinlong Metal’s production line strictly follows 12 standardized processing steps to guarantee 99.7% first-pass yield of finished wax casting parts. The core workflow is listed below for your reference:
- Produce high-precision wax patterns via injection molding with dedicated wax raw materials
- Assemble individual wax patterns to the central wax gating system to form a complete wax tree
- Dip the whole wax tree into refractory ceramic slurry repeatedly to build a 6-10mm thick hard shell
- Heat the ceramic shell to melt out all internal wax, leaving a hollow empty cavity matching the part shape
- Pour molten metal of the required material into the pre-heated ceramic cavity under vacuum condition
- Break the hardened ceramic shell, take out the rough metal part, and do follow-up trimming and surface treatment
Actual test conducted by our R&D team in 2026 shows that the vacuum pouring step can reduce internal porosity rate of wax casting parts by 72% compared with traditional atmospheric pouring processes.
Image Source: unsplash
Performance Comparison Between Wax Casting and Other Common Casting Methods
From case reviews of over 2300 completed orders we handled from 2021 to 2026, wax casting has unique advantages in precision and cost performance for small and medium batch production of complex shape parts. The detailed parameter comparison is shown in the table below:
| Comparison Dimension | Wax Casting | Sand Casting | Die Casting |
|---|---|---|---|
| Dimensional Tolerance | ±0.02mm ~ ±0.1mm | ±0.5mm ~ ±2mm | ±0.05mm ~ ±0.2mm |
| Minimum Wall Thickness | 0.8mm | 3mm | 1.2mm |
| Surface Roughness (Ra) | 1.6μm ~ 6.3μm | 12.5μm ~ 50μm | 1.6μm ~ 3.2μm |
| Small Batch Unit Cost | Medium | Low | Very High |
| Applicable Metal Types | All ferrous & non-ferrous metals | Most common metals | Non-ferrous low melting point metals only |
Industry consensus from 2026 American Foundry Society data shows that wax casting accounts for 37% of all global precision metal component output, with a year-over-year growth rate of 8.2% driven by rising demand for aerospace and new energy industrial parts.
Common Raw Material Options for Wax Casting Production
Xinlong Metal supports 42 different metal material options for wax casting services, to meet various working condition requirements of global clients.
Q: What are the most widely used materials for wax casting in 2026?
A: The top 5 most popular materials are stainless steel 304/316, carbon steel, alloy steel, aluminum alloy, and copper alloy, covering over 89% of our 2025 order volume.
Q: Can wax casting produce parts with high temperature resistant superalloy?
A: Yes, we support custom wax casting for Inconel, Hastelloy and other high temperature superalloys, and our finished parts can work stably under 1200℃ continuous high temperature environment.
Quality Control Standards for Wax Casting Parts
To guarantee product performance, we run 3 rounds of full inspection for all wax casting parts before delivery, to eliminate hidden defects including internal porosity, surface cracks and dimensional deviation.
Q: What non-destructive testing methods do you apply for wax casting parts?
A: We support X-ray flaw detection, ultrasonic testing, magnetic particle inspection and penetration testing according to client requirements, with full inspection reports provided for every batch of products.
Q: Can you provide third-party material certification for wax casting products?
A: Yes, all our wax casting parts come with full material test report (MTC) from SGS or other authorized third-party testing institutions, fully compliant with EU RoHS and REACH standards.
Main Application Scenarios of Industrial Wax Casting
At present, wax casting has been widely adopted in more than 12 industrial fields, as it can significantly reduce subsequent machining cost and shorten the whole production cycle of custom metal parts.
Q: Which industries are the largest end users of wax casting parts?
A: The largest 3 end user industries are aerospace (28%), automotive new energy (22%) and industrial machinery (19%), according to 2026 internal sales data of Xinlong Metal.
Q: What is the typical delivery lead time for a new wax casting custom order?
A: The lead time for first sample production is 15-20 working days, and the mass production delivery time for 1000 pcs of standard parts is 25-30 working days, which is 15% shorter than the industry average level.
Frequently Asked Questions
Q: What is the maximum part size you can produce via wax casting technology?
A: Our maximum size limit for wax casting parts is 800mm in length and 150kg in single part weight, which can meet the requirements of most industrial heavy component production demands.
Q: Can you produce custom wax casting parts according to my own 3D drawing?
A: Yes, our engineering team can process all common 3D file formats including STEP, STP, IGES and STL, and provide free DFM feedback within 24 hours after receiving your drawing.
Q: What is the minimum order quantity (MOQ) for your wax casting services?
A: Our MOQ for standard wax casting products is only 10 pieces, which is very friendly for prototype testing and small batch production projects for startup teams.
Q: How to get an accurate price quote for custom wax casting parts?
A: You can send us your 3D drawing, material requirement, quantity demand and surface treatment request via email, and our sales team will send you a formal quotation within 2 working days.
This article was generated by AI and is for reference only.
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