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Hebei Speed Torque Transmission Technology Co., Ltd. is a professional custom precision investment casting foundry established in 2017, dedicated to delivering expert lost wax casting services. With a factory area of 3,000–5,000 square meters and a team of 101–200 skilled employees, we have built a strong reputation for producing high-quality complex metal components used in diverse industries. Our ISO9001:2015 certified processes ensure consistent precision, reliability, and on-time delivery for clients worldwide.
Our lost wax casting service (also known as investment casting) allows us to create parts with intricate geometries, excellent surface finish, and tight dimensional tolerances. Whether you need a single prototype or mass production, we offer flexible solutions tailored to your specifications. From material selection to final finishing, every step is controlled to meet the highest standards.
Key Features & Technical Specifications
Superior Dimensional Accuracy: Achieve tolerances as tight as CT5 (ISO 8062), reducing post-machining needs.
Wide Material Range: Support stainless steel, carbon steel, alloy steel, aluminum, brass, bronze, and more.
Complex Geometry Capability: Produce intricate internal cavities, thin walls, and undercuts without additional operations.
Excellent Surface Finish: Typical surface roughness Ra 3.2–6.3 μm, can be further improved via secondary processes.
Weight Flexibility: Cast parts from 0.1 kg up to 100 kg per piece, adaptable to your project scale.
High Production Efficiency: Our advanced wax injection machines, shell building lines, and melting furnaces support 500–2000 tons annual output.
End-to-End Service: From pattern design (including 3D printing for rapid prototyping) to heat treatment, machining, and surface finishing.
Technical Parameters (Typical)
| Parameter | Value / Range |
|---|---|
| Casting Process | Investment Casting (Lost Wax) |
| Dimensional Tolerance | CT5 – CT7 (ISO 8062) |
| Surface Roughness | Ra 3.2 – 6.3 μm (as-cast) |
| Weight per Piece | 0.1 kg – 100 kg |
| Material Options | Stainless steel (304, 316, 17-4PH), carbon steel, alloy steel, aluminum, brass, bronze, etc. |
| Annual Production Capacity | 500 – 2000 tons |
| Quality System | ISO9001:2015 Certified |
Benefits to Your Business
Cost Reduction: Near-net-shape casting minimizes material waste and secondary machining, lowering overall production costs.
Faster Time-to-Market: Our experienced team can shorten lead times through optimized mold design and efficient production scheduling.
Design Freedom: Lost wax casting allows you to combine multiple parts into one cast component, simplifying assembly and improving performance.
Consistent Quality: Strict process control and in-house inspection (including X-ray and spectrometers) ensure every batch meets your specifications.
Global Logistics: We ship from major ports (Shanghai, Tianjin, Qingdao) and serve markets across North America, Europe, Asia, and Africa.
Our foundry is equipped with modern wax injection machines, automated shell building lines, induction melting furnaces, and heat treatment facilities. We also offer secondary operations such as CNC machining, surface coating, and assembly to deliver fully finished components. This one-stop service reduces your supply chain complexity and saves you time.
Trust & Reliability
Since 2017, Hebei Speed Torque Transmission Technology Co., Ltd. has grown to an annual export value of US$5–10 million, serving customers in over 15 countries and regions. Our factory with 3,000–5,000 square meters houses 101–200 dedicated professionals, including engineers, technicians, and quality inspectors. We hold ISO9001:2015 certification, which is audited annually to ensure continuous improvement. Our commitment to on-time delivery, competitive pricing, and technical support has earned us long-term partnerships with clients in automotive, aerospace, industrial machinery, valve, and pump sectors.
We invite you to experience the difference of working with a reliable custom precision investment casting foundry. Whether you have a detailed drawing or just a concept, our engineering team will provide free design review and DFM (Design for Manufacturing) feedback. Contact us today to discuss your next project and request a quotation.
Frequently Asked Questions
Q: What is the minimum order quantity (MOQ) for custom lost wax casting?
A: Our MOQ depends on part complexity and weight. Typically, we accept orders as low as 50–100 pieces for small parts. For larger components, please contact us to discuss your specific needs.
Q: How long does the tooling preparation take?
A: Tooling (wax injection die) preparation usually takes 15–25 working days, depending on the mold complexity. We also offer rapid prototyping via 3D-printed patterns for urgent projects.
Q: Can you cast parts with thin walls or undercuts?
A: Yes, investment casting excels at producing thin-walled sections (down to 0.5 mm) and complex internal geometries. Our experienced engineers will optimize the design for castability.
Q: What materials can you cast?
A: We cast a wide range of ferrous and non-ferrous alloys, including stainless steel (304, 316, 17-4PH), carbon steel, alloy steel, aluminum, brass, bronze, and special alloys. Contact us for a full material list.
Q: Do you provide heat treatment and surface finishing?
A: Yes, we offer heat treatment (annealing, quenching, tempering) and various surface finishes such as shot blasting, polishing, plating, and painting. All can be customized per your requirements.
Q: What is the typical lead time for production?
A: After tooling approval, production lead time is usually 20–35 working days, depending on order quantity and complexity. We can expedite for urgent orders.
Q: How do you ensure quality control?
A: We follow ISO9001:2015 procedures. Incoming material inspection, in-process dimensional checks, X-ray/NDT, and final inspection are performed. We also provide a full inspection report with each shipment.
Q: Can you ship to my country? What are the shipping options?
A: Absolutely. We ship to North America, South America, Europe, Asia, Africa, Oceania, and the Middle East. We can arrange sea, air, or express delivery from Shanghai, Tianjin, or Qingdao ports.
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