Automotive Shot Peening Applications:
1. Engine crankshafts, connecting rods, and camshafts: Shot peening creates a uniform residual compressive stress layer that improves resistance to torsional and bending fatigue, suppresses crack initiation and propagation, withstands the high-frequency alternating loads of engine operation, and extends the service life of core moving components.
2. Suspension springs, control arms, and swing arms: Shot peening relieves residual tensile stresses from forging and machining, improving impact resistance and corrosion-fatigue performance. It also helps reduce fatigue damage caused by road vibration, enhance suspension stability, and support safer, smoother driving.
3. Transmission gears and drive shafts: Shot peening refines the surface grain structure and improves the surface microstructure, significantly enhancing wear resistance on gear teeth and mating surfaces. It also helps reduce contact fatigue, pitting, and fretting wear, lowering the risk of transmission failures and ensuring reliable power transmission.
4. High-strength steel chassis and brake components: Shot peening improves fatigue and impact resistance, helping inhibit crack propagation caused by cyclic stresses. It also enhances structural strength and corrosion resistance, making these components better suited to challenging road conditions and prolonged heavy-duty use.
5. Fasteners and other connecting components: Shot peening improves the surface properties of bolts, welded parts, and hinges, enhancing fretting-fatigue resistance. It helps reduce wear, loosening, and sticking, improving assembly reliability and extending component service life.

We Understand Your Supply Requirements:
1. Mandatory compliance with industry-specific standards: The automotive industry requires high standardization on its supply chain. In addition to general-purpose standards, shot media suppliers must follow automotive-specific specifications. Leading automotive OEMs may also require products to comply with international standards, such as SAE standards, AMS2431, and the military specification MIL-S-13165.
2. Strict technical requirements for shot media: Automotive OEMs impose strict technical specifications on the fundamental performance of peening shots, as the properties of shot materials directly determine the final surface treatment quality and service life of processed components.
3. From “Selling Products” to “Providing Solutions”: Automotive customers increasingly prefer partners that offer comprehensive technical support, including process recommendations, testing capabilities, assistance in developing specifications, and access to R&D and testing centers.
4. New demands driven by electric vehicles: The growth of the new energy vehicle market is creating new opportunities for shot media, along with new technical requirements. These include media for processing lightweight components, specialty media such as stainless steel and aluminum shot, and premium media that is high-purity, fine-grained, and low in impurities.

Tonglve metal's Solutions:
1. As a leading metal abrasive manufacturer in China, we manufacture our products in strict accordance with automotive industry standards and international specifications, including AMS2431/8, MIL-S-13165, SAE J441, DIN 8201, and VDFI 8001. Our products meet the supplier qualification requirements of major automakers worldwide.
2. Tonglve’s independently developed HD cut wire shot delivers a service life three times that of cast steel shot and 1.5 times that of standard cut wire shot, cutting overall production costs by more than 20%.
3. Unlike conventional media suppliers, Tonglve provides end-to-end technical services: customized process solutions, professional testing services, equipment and media selection with application guidance, and on-site training and technical support.
4. With deep roots in the new energy and lightweighting markets, we supply low-damage media such as stainless steel shot and aluminum shot for new energy components including aluminum alloy battery trays and motor housings, meeting the surface treatment needs of lightweight materials.

Typical Applications:
1. Powertrain system, chassis system, body system, etc.
2. Rack bars, springs, wheel hubs, and fasteners.
3. Crankshafts, stabilizer bars, bumpers, and bearings.
4. Connecting rods, control arms, door hinges, and brake discs.
5. Camshafts, steering knuckles, seat frames, and universal joints.

Shot Blasting/Shot Peening Applications for Steel Shipbuilding:
1. Steel pre-treatment: It is the most fundamental and widely used application of shot blasting/shot peening in shipbuilding, typically carried out before steel is cut and welded.
2. Shot blasting/shot peening for ship hull blocks: After the steel has been fabricated into large hull blocks, secondary treatment is required.
3. Treatment and strengthening of welded joints: Welded joints are the weak points where hull structures are most prone to fatigue failure. Shot peening is an effective way to improve their fatigue strength.
4. Surface strengthening of critical ship components: In addition to the hull structure , many critical moving components on ships also require shot peening.
5. Shipbuilding, repair, and maintenance: Shot blasting serves as the primary method for removing old coatings and rust during the daily maintenance and dock repair of marine vessels.

We Understand Your Supply Requirements:
1. Compliance with International Standards and Shipbuilding-Specific Specifications: The shipbuilding industry is highly internationalized, and shot media suppliers must meet a range of stringent international and national standards, including requirements for surface preparation under Performance Standard for Protective Coatings (PSPC).
2. Strict technical requirements on the media: The industry sets demanding requirements on the media itself—chemical composition and metallographic structure, hardness range, particle size distribution, density, and defect control. Product performance directly affects the service life of marine corrosion protection systems and the safety of vessel operations.
3. Environmental and sustainability requirements: Environmental requirements in the shipbuilding industry are becoming increasingly stringent. Suppliers need to address abrasive recovery and recycling, dust and waste control, environmental policy development, and the growing demand for low-dust and eco-friendly media.
4. Comprehensive capability requirements for suppliers: Suppliers must meet comprehensive capability requirements, including stable mass supply capacity, full-process technical services, and standardized quality system certifications.

Tonglve metal's Solutions:
1. In-depth participation in standard setting, leader in industry compliance: As a leading manufacturer of metallic abrasives in China, our company is not only a follower of standards but also a contributor to them. We are an active participant in the development of the national standard GB/T 31214.2-2021.
2. A full product matrix aligned with every shipbuilding process: To cover the full lifecycle of the steel shipbuilding industry—from steel plate pre-treatment to ship construction, repair, and maintenance—we offers not only standard metallic shot but also self-developed, higher-performance products such as HD cut wire shot shot and PSPC-specific media.
3. From product supply to end-to-end solutions: Unlike conventional shot media suppliers, we offer integrated solutions spanning R&D, manufacturing, sales, and technical service.
4. Committed to green intelligence & cost efficiency to seize emerging industry opportunities: By optimizing media selection and blending ratios, we enable high recovery and recycling rates, thereby reducing overall operating costs.

Typical Applications:
Large shipyards and steel structure pre-treatment lines.