Precision Machining & Casting Center

At Hotstone Group Co., Ltd , we combine advanced manufacturing technology, state-of-the-art facilities, and strict quality control to deliver world-class industrial solutions. From precision investment castings to CNC maching , we provide products that meet the highest standards of accuracy and performance.

Casting and precison Maching engineering

Our expertise covers the full range of processes, including lost-wax casting, shell molding, sand casting, forging, precision machining, surface treatment, welding, sheet metal fabrication, and assembly workmanship. To simplify your supply chain, we also offer complex component assembly and customized services, creating a true one-stop solution for your manufacturing needs.

With a commitment to innovation, reliability, and customer-first service, we partner with clients across industries such as automotive, aerospace, energy, and machinery, delivering tailored solutions for intricate structures, specialized materials, and high-strength applications.
Choose us as your trusted partner for precision casting and machining, and experience the difference of uncompromising quality, integrated service, and exceptional value.

Upgrade your production with advanced Maching and Casting service. Click for precision!

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CNC machining & Precision casting Service we offer

At Hotstone Group, we deliver innovative solutions for investment casting and CNC machining. From design and engineering to precision machining, fabrication, welding, and laser cutting, we provide a complete one-stop service. With advanced technology and strict quality control, we ensure accuracy, reliability, and exceptional value for every project.

Designing & Engineering of the casting and maching

Rated:

★★★★★

Designing & Engineering

Our expert team delivers comprehensive design solutions, technical consulting, and engineering support to ensure optimal product performance and seamless project execution.

Rated:

★★★★★

CNC & VMC Machining

Our team collaborates with clients to conceptualize projects, ensuring every idea is accurately interpreted and transformed into practical, high-quality solutions.

Rated:

★★★★★

Precision Investment Casting

We deliver high-precision components with minimal tolerances, reliable quality, and strict error control to meet every client’s exact requirement.

Rated:

★★★★★

Fabrication & Welding

We provide clients with high-quality custom manufacturing and precision welding services, ensuring exceptional durability, reliable performance, and superior craftsmanship for every project.

Rated:

★★★★★

Laser Cutting & Shears

Equipped with advanced laser sheet and tube-cutting machines, we deliver precise cutting, piercing, marking, and beveling for a wide range of sheet and tube applications.

Rated:

★★★★★

professional Assembly

We provide high-quality manufacturing and installation for complex, high-precision components, ensuring exceptional accuracy and reliable performance for demanding applications.

Upgrade your production with advanced Maching and Casting service. Click for precision!

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what we expert In Investment casting Industry

We specialize in precision investment casting, delivering complex, high-quality components with exceptional accuracy, superior surface finish, and reliable performance for diverse industrial applications.

Loswax Casting

Lost-wax casting is a precision process that produces intricate metal components by creating a mold from an original pattern, enabling exceptional detail and accuracy in materials such as gold, silver, brass, and bronze.

Shell Mouldling

Shell moulding, or shell-mould casting, is a precision process that forms an expendable mold using resin-coated sand, enabling accurate, high-quality metal castings with excellent surface finish and dimensional stability.

sand Casting

Sand casting is a versatile process where molten metal is poured into a pre-designed sand mold. Once cooled and solidified, the metal retains the original shape, enabling cost-effective production of complex components.

Forging Process

Forging is a manufacturing process that shapes metal under compressive force, significantly enhancing component strength, durability, and overall quality to meet precise performance requirements.

Heat Treatment

Heat treating enhances component quality by improving strength, hardness, and durability through controlled heating and cooling processes, tailored to meet specific performance requirements.

Precision Machining

Parts require further machining to meet precise specifications and achieve high tolerance levels, ensuring superior accuracy and consistent quality for demanding applications.

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What we expert in Precision Machining Industry

Our CNC machining center delivers precision and efficiency. We use advanced equipment to process complex parts accurately. Moreover, we follow customer drawings and specifications strictly. As a result, every component meets exact standards. We handle aluminum, stainless steel, titanium, and plastics confidently. In addition, we maintain tolerances up to ±0.01 mm and achieve smooth surface finishes. Our skilled team monitors each stage carefully. Furthermore, we apply rigorous quality checks with modern instruments. Consequently, we ensure reliability and consistency in every project. We also provide timely delivery and responsive support. Therefore, clients trust us for high-quality CNC machining solutions. Ultimately, we combine technology, expertise, and strict control to create outstanding results.

Process Quality

★★★★★

CNC Milling Process

Our CNC milling service delivers exceptional precision and efficiency, allowing customers to complete diverse machining tasks seamlessly in one location. We combine advanced technology with strict quality control to ensure superior results and maximum convenience.

Process Quality

★★★★★

CNC turning Process

Our turning service delivers superior precision and efficiency, enabling customers to complete all machining requirements in one convenient location. With advanced technology and strict quality control, we ensure exceptional results and streamlined production.

Process Quality

★★★★★

Robotic Parts Welding Process

Our welding service offers exceptional strength and precision, enabling customers to complete all fabrication tasks in one convenient location. With advanced techniques and strict quality standards, we ensure durable, reliable results for every project.

Process Quality

★★★★★

Plate Metal Working

Our metalworking service delivers exceptional precision and durability, enabling customers to complete all fabrication tasks in one convenient location. With advanced equipment and strict quality control, we ensure superior results and streamlined production for every project.

Process Quality

★★★★★

Parts Surface Treatment

We provide specialized surface treatments tailored to each customer’s detailed requirements, ensuring superior finish quality and precise compliance with specifications.

Process Quality

★★★★★

Whole Products assembly

Our assembly service ensures high-quality integration, enabling customers to complete all production tasks in one convenient location. With advanced processes and strict quality control, we deliver reliable, efficient solutions for seamless product assembly.

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Investment Casting Products process Sample

Shell Mouldling of invest casting process

Stainless Steel invest Casting

Our stainless steel casting offers exceptional precision, an attractive finish, and outstanding durability, making it ideal for high-performance applications.

Carbon Steel invest Casting

Our stainless steel casting offers exceptional precision, an attractive finish, and outstanding durability, making it ideal for high-performance applications.

Aluminum Invest Casting

Our aluminum casting offers lightweight design, excellent strength-to-weight ratio, and superior conductivity, making it ideal for high-performance and energy-efficient applications.

ABronze ,Brasss Casting

Our brass casting offers excellent formability and ease of processing, combined with natural bacteriostatic properties and superior electrical conductivity, making it ideal for precision and hygienic applications.

Titanium Nickle Based Casting

Our titanium-nickel-based casting offers exceptional hyperelasticity, superior corrosion resistance, and outstanding biocompatibility, making it ideal for demanding, high-performance applications in extreme environments.

Grey ,Ductile Iron Casting

Our grey and ductile iron casting offers excellent castability, superior machinability, and low stress concentration, making it ideal for durable and precision-engineered components..

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Procision Machining Products process Sample

Procession Maching Process

We strictly follow customer drawings, maintain precise machining tolerances, and ensure accuracy throughout production to deliver high-quality, reliable components that meet specifications and exceed expectations for performance and durability.

Procession Maching Process

“We strictly follow customer drawings, maintain precise machining tolerances, and ensure accuracy throughout production to deliver high-quality, reliable components that meet specifications and exceed expectations for performance and durability.