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ООО Мяньян Цяньчуй Механическое Оборудование
Our services
The professional military technology team can provide customized manufacturing of various military technology products for the user, such as missile barrels, missile casings, rapid-fire barrels for large destroyers, transmission gears for heavy tanks, gear gears for large ships, parts for large unmanned aerial vehicles, high-temperature forgings for rocket booster protective casing...etc.
2018
Company foundation date
28000
Total production area of the company (square meters)
18
Total number of production equipment (sets)
100
+Key clients
Products
Small impact piston
China Qianchui Mechanical Company professionally produces small impact pistons for rotary hammers Piston material: using our own developed special alloy steel...
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Hammer piston
China Qianchui Mechanical Company professionally produces rotary hammer pistons Piston material: using our own developed special alloy steel for large...
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Drone parts
The Chinese company Qianchui Mechanical, using military technology, produces large parts for unmanned aerial vehicles Special steel: using our own...
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616S Hydraulic Breaker Hammer Piston
Chinese company Qianchui Mechanical, independently developed pistons for 616S hydraulic demolition hammers of large, medium and small sizes Piston material: using our own...
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Hydraulic Breaker Hammer Piston
Chinese company Qianchui Mechanical, professionally produces pistons for hydraulic demolition hammers Piston material: using our own developed special alloy...
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Heat-resistant special steel with military technology
China's Qianchui Mechanical Company uses military technology to produce heat-resistant special steel Special steel: using our own developed heat-resistant special...
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Rocket body
China's Qianchui Mechanical Company uses military technology to produce missile casings Special steel: using our own developed military special steel for the casing...
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Rapid fire barrel for large warships
The Chinese company Qianchui Mechanical, using military technology, produces rapid-fire barrels for large naval artillery installations Special steel: using our own...
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Ventilation (from Latin ventilatio - airing) is the process of removing exhaust air from a room and replacing it with outside air. If necessary, this includes: air conditioning, filtration, heating or cooling, humidification or
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Professionalism
01
Qianchui Pistons is a company that professionally produces components for construction equipment. Technicians come from large state-owned military enterprises, the company is equipped with military-grade special steel technology, precision CNC machining, and carburization hardening production line, and has the country's leading military technology team.
Complete production line of the entire technological process
02
Qianchui Pistons is currently the only enterprise in China that carries out a complete production line of high-quality hydraulic hammer pistons using military technology: from special steel development → VOD vacuum refining → Czech 4500T high-speed forging press → 1800T Austrian forging press → CNC precision machining → carburization hardening and precise control of heat treatment.
Supply of high quality components for large unmanned aerial vehicles
03
Our company carries out long-term serial supply of high-quality key components for the Chinese unmanned helicopter with a tailless intersecting twin-rotor design - the first in the world, having received high customer recognition.
Individual production of various products using military technologies to order from the client
04
Qianchui piston technicians came from large state-owned military enterprises. With high level of military technology and many years of manufacturing experience, we can provide customers with various military technology mechanical components and high performance products.
FAQ
The technological process is based on military technologies
Qianchui piston technicians come from large state-owned military enterprises, have many years of military product manufacturing experience and accumulated technological processes, can provide customers with professional services.
Full range of pistons
Using our own developed special alloy steel for 616S large pistons Produced models: from small impact pistons for rock drills to extra large pistons for 100 ton excavator hydraulic demolition hammers Produced sizes: diameter Φ50～Φ360mm × length 500～5000mm
What should you do if the piston of a hydraulic hammer constantly breaks, the head comes off, and scuffs and scratches appear?
You can try our 616S hydraulic hammer piston, which is manufactured using heat treatment: standard case hardening + multiple low tempering, which fully meets the requirement of the "outside hard, inside soft" characteristic of hydraulic hammer piston, which effectively saves customers from hidden quality defects such as high brittleness, tendency of head cracking and destruction of high-carbon steel type pistons GCr15/9Cr2Mo, quenched and tempered, eliminating after-sales problems.
What sizes of pistons can you produce?
For standard piston sizes 140～200, we keep several hundred pistons in stock every month; other sizes can also be made to order. Models produced: from small impact pistons for rotary hammers to extra large pistons for hydraulic demolition hammers of 100 ton excavators. Produced sizes: diameter Φ50～Φ360mm × length: 500～5000mm.
What are the warranty conditions for your piston products?
The warranty period for piston products is method A or method B: A. From the date of receipt of the goods by the Buyer, for models ≥175 - within 6 months, for models<175 – within 12 months. During the warranty period, if the Supplier's products (pistons) have quality defects, such as destruction, head separation, swelling, the Supplier undertakes to make a free replacement; B. Or, when installing the piston, the Buyer provides original records of the installation of the piston, as well as a photo or video of the installation, indicating the corresponding stamped piston number, and on the day of installation sends them to the Supplier’s employee to confirm the commissioning record. From the date of confirmation of commissioning by both parties, during the warranty period, if the Supplier's products (pistons) have quality defects, such as destruction, head separation, swelling, the Supplier undertakes to make a free replacement.
What is the difference between your drill rod core and conventional drill rods?
Our Qianchui company has successfully developed a drill rod core using patented QC600 technology using military technology. The drill rod body is made of ultra-high-strength special steel QCD6, used in Long March rockets, and the tip core is made of independently developed heat-resistant alloy QC600, which successfully solved the technical problems that previously often arose with conventional large drill rods of hydraulic hammers: high strength - tendency to break, low strength - tendency to roll up the edge, high temperature - rapid softening, etc. QC600 high-temperature alloy core allows the drill rod to withstand operating temperature up to 600°C without softening, and the hardness reaches HRC60～65, high crushing efficiency, high productivity, high economic benefit. At the same time, the drill rod body made of ultra-high-strength QCD6 material has balanced strength and toughness, which fully meets the performance requirements of drill rods for ultra-large heavy hammers: high strength, high toughness, high temperature, high wear resistance.
What is the largest hydraulic hammer piston you produce?
On June 16, 2021, Qianchui Pistons, as requested by XCMG heavy hammer project, developed Φ360mm extra large piston for 5 ton heavy hammer, designed for 70～80 ton large excavators. В ответ на технические трудности, связанные с высокими требованиями к специальной стали и термической обработке при сверхбольшом диаметре Φ360 мм, компания Цяньчуй сосредоточила усилия технических инженеров для проведения технических исследований и успешно решила проблемы прокаливаемости, структурных превращений и механических свойств специального материала для крупных поршней 616S при диаметре Φ360 мм. После цементационной закалки твёрдость сверхкрупного поршня тяжёлого молота составила HRC59～61, деформация биения по окружности ≤0,10 мм, ударная вязкость материала ≥128 Дж, что успешно завершило задачу разработки и поставки.
Какую ещё продукцию с применением военных технологий вы можете производить?
Технические специалисты поршней Цяньчуй пришли из крупных государственных военных предприятий. Благодаря высокому уровню военных технологий и многолетнему производственному опыту мы можем предоставить клиентам различные механические компоненты с применением военных технологий и изделия с высокими эксплуатационными требованиями, например: стволы, корпуса ракет, скорострельные стволы для крупных эсминцев, трансмиссионные зубчатые колёса для тяжёлых танков, зубчатые колёса редукторов для крупных кораблей, детали для крупных беспилотных летательных аппаратов, жаропрочные поковки защитного кожуха ракетного ускорителя… и т.д.
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