
TINVO is an industrial, engineering and trade integration company. The headquarter office is located in Harbin city, northeastern China, the main manufacturing bases are located in Jiangsu and Henan province, close to the seaport Shanghai and Tianjin, in order to facilitate maritime transport easily. It provides one-stop service of equipment/spare parts procurement and project solution. With the experience and efforts for many years, it has possessed its own supply chain system and loyal client groups in steelmaking machinery, rolling mill parts, castings and forgings, auxiliary equipment of steel plants, etc.

All the factories have ISO9001;2008 certificate and implement the in-factory quality control if the customer does not consign the 3rd party of inspection. We also accept 3rd party of inspection and buyer’s inspection when the products are ready to ship.
The product standards include but not limited to GB/T, ISO, ASTM, DIN, JIS, etc.
For machines and accessories, TINVO provides free training of installation, operation and maintenance in China. The on-site engineering service is available in charges when a customer requests.
For EP project, we can provide design, engineering and procurement, TINVO has the own technical team, and can handle all the technical issues and will be the only one who responsible for all quality issues.
According to the shapes and weight of ordered products, TINVO has crates, pallet, iron frame, iron carton and naked, all packing is seaworthy. TINVO applies FCL container transportation to avoid the unexpected risk of damage and loss during shipment.

For the most customized products, TINVO needs the customer to supply correct specification requirements, materials composition and mechanical drawings. Only if we collect the necessary information completely, can we provide the offer within 3-5 days.
For the E&P general design or equivalent design work, it takes different time according to project scales, generally speaking, one month is enough to a middle size steel making project.
Contact TINVO
Website: https://www.hrbtinvo.com/
Email: inquiry@hrbtinvo.com
Address: Daowai, Harbin City, Heilongjiang, 150050, China.
Telephone: +86 13796661748
TINVO’s core products contain various types of mill rolls and hot/cold rolling mills like deformed bar rolling mill, strip rolling mill, section rolling mill, rebar straightening machine, wire rod drawing machine, fly shears, cast roll, forged steel roll, wear-resistance sleeves, etc. These products are precisely engineered from fine grade metal and alloy, which are procured from highly trusted, certified and reliable vendors. These products have been mainly served in Southeast Asia, Middle East, Europe and Russia, as well as known for their optimum performance, low maintenance, dimensional accuracy, sturdy construction and user-friendly operation.

Basic Introduction Of TINVO
Harbin Tinvo Import and Export Trading Co., Ltd (hereafter as TINVO), founded in the year 2007, is a professional trading company in the field of Iron & Steel industry and metallurgy industry. As a bridge between China manufacturers and overseas end-users, we provide one-stop service of equipment/spare parts procurement and project solution. With the experience and efforts for many years, we have possessed our own supply chain system and loyal client groups in steelmaking machinery, rolling mills parts, castings and forgings, auxiliary equipment of steel plants, etc.
Furthermore, TINVO is engaged in offering excellent custom-making design and project solutions for steel smelting, continuous casting and continuous rolling when we keep good partnerships with reputed design institutes and leading-edge factories of electric arc furnace (EAF), induction furnaces, continuous cast machine (CCM). we have appointed a team of highly experienced engineers and technicians. Owing to a sophisticated manufacturing facility and advanced management, we have been able to manufacture and supply a wide range of products within the stipulated time.
Why choose TINVO?
Business Principle:
Maximize the business benefits of clients and suppliers as the foothold of our company.
Industry experience:
Have more than 30 strong factories in our supply chain and more than 50 different scales of steel mills user at home and aboard. The best solution and competitive products can be sourced in a short time.
Professionalism:
Have good cooperation with be known steel design institutes nationwide and can provide the client with the most professional design service. Keep long-term contacts with skilled engineers and technicians in the steel smelting plants and rolling mill plants for on-site service of overseas projects.
Sincere Service:
7/24 online service; quick and flexible pre-sales service, standardized in-sales service, and professional after-sales service.
Quality Assurance:
All vendors in our supply chain are qualified in ISO certificates and inspection system in the house, all their products conform to the standards of GB, ASTM, DIN, JIS, etc. Meanwhile, they must have experiences to supply the top-level end-users of steel production and metallurgy. More and more clients upgrade us to a strategic partner, some of them even cooperate with TINVO beyond a decade.
Trade Capacity:
Be familiar with trade policy and logistics; have channels to search for the suitable stuff for international buyers and organize the favorable shipment. The business commission for a middleman is flexible under different trade terms.
Key Clients

CELSA Steel

POSCO Korea

Bao Steel

Steamline Industrial Ltd

JSW Steel Limited

ESSAR Steel India Limited

Ma Steel

Shandong Iron & Steel Group

The purpose of steel rolling production line is to obtain the required shape, such as steel plates, strip steel, wire rods and various sections, another aspect, in order to improve the internal quality of steel like common automotive plates, bridge steel, boiler steel, pipeline steel, etc. Steel rolling is a continuous and uninterrupted operation. The steel strip runs fast on the roller table with automated equipment bringing high efficiency. Depending on the different temperatures in the rolling method, the steel rolling can be classified into hot rolling and cold rolling. According to the different relationships between the relative movement of the rolling stock and the roll during rolling, it can be divided into vertical rolling, horizontal rolling, and diagonal rolling. In the hot rolling production line, the billet is heated to become soft and is sent into the rolling mill by the roller table, finally rolled to the size required by the users. Compared with hot rolling, the processing line in a cold rolling mill is more scattered. The steel coils sent by the hot rolling mill must undergo three consecutive technical treatments and the oxide film must be removed with hydrochloric acid. Through the cold rolling mill, the uncoiler opens the steel coil and then the steel strip is carried to a five-stand continuous rolling mill to be rolled into a thin strip coil.
Φ8~32 Rebar Steel Bar Production Line
The steel rebar production line is used for the production of Φ8-Φ32mm round bar, low-alloy steel and carbon structural steel. It is composed of heating furnace, continuous Rolling mills and cooling bed. The auxiliary equipment includes pinch roller, swinging head scissors, chain type cooling bed, 100 hydraulic metal cutting machine and rolling table. The rebar production line is for sale at TINVO with powerful working team and technology support, best metallurgical design institute and lifelong after-sales & maintenance support.
Copper Aluminum Zinc Rolling Mill
The aluminum rolling mill can be used a semi-finished coil for foil rolling. TINVO is a manufacturer for high-quality aluminum rolling machine. The machine provided by TINVO can process max 0.95mm material into foil material with all kinds of gauge and width. It can adjust the roll gap and work roll with hydraulic pressure. It is equipped with a strong and good rolling oil system, which can control the roll type freely. With the automatic control and display system of thickness and plate shape, the mill can produce the aluminum foil with strict thickness tolerance and good plate shape. This processed foil can be offered as further processing raw material such as producing containers, embossing, printing and coating, sticking, a package for food, drink, medicine in daily life, cosmetics and package for some special using material, cable and heat exchanger, etc.
For more professional knowledge, please visit the TINVO news.

The steel bar production line with the annual capacity of 50K to 300K tons for the production of bars Φ8-32mm of common carbon steel, wire rod steel and low-alloy steel. The production Line uses 100×100--150×150 continuous casting billet, which of length 3000mm--6000mm and provided by the internal steelmaking continuous casting workshop. The annual output of 50,000-300,000 tons requires 330,000 tons of continuous casting billet, and the comprehensive finished product rate is 98% (considering negative deviation). It applies regenerative pusher type reheating furnace of gas fuel, the heating capacity is 40-80t/h. There are sixteen rolling mills divided into three group rolling mills of rough rolling, medium rolling and finishing rolling. The layout type is 6+6+4 H-V rolling mills and their main transmission adopts PLC control.
Process flow of bar production line
Billet acceptance → heating → rolling → multiple length cutting→ cooling → shearing → inspection → packaging → metering → warehousing
The main equipment includes:
1. Furnace runoff roller table x 3set
2. Roller table before the rolling machine x 2set
3. The elevator behind the machine x 1set
4. Three-roll mill (contains the main motor, Reducer, Three-axle Gearbox, Flywheel Set, Pin Coupling, Universal joint, main unit)
5. Two-roller horizontal rolling mill (including main motor, reducer, two-axis gear box, Pin Coupling, Universal Joint, main unit)
6.Two-roller vertical rolling mill (including Main motor, Combined gear box, Pin coupling, Universal joint shaft, Vertical rolling stand 7, conveyor roller)
7. Crop shear
8. Double Cold shear
9. Cooling bed/Stepping cooling bed (including upper and lower cooling bed rollers. The total length is 60 meters.)
10. Cut-to-length Cold shear
11. Collecting stand
12. Cooling system and hydraulic lubrication
13. An electrical control system
For the more professional introduction, please visit the page of TINVO product news.

The purpose of steel rolling production line is to obtain the required shape, such as steel plates, strip steel, wire rods and various sections, another aspect, in order to improve the internal quality of steel like common automotive plates, bridge steel, boiler steel, pipeline steel, etc. Steel rolling is a continuous and uninterrupted operation. The steel strip runs fast on the roller table with automated equipment bringing high efficiency. Depending on the different temperatures in the rolling method, the steel rolling can be classified into hot rolling and cold rolling. According to the different relationships between the relative movement of the rolling stock and the roll during rolling, it can be divided into vertical rolling, horizontal rolling, and diagonal rolling. In the hot rolling production line, the billet is heated to become soft and is sent into the rolling mill by the roller table, finally rolled to the size required by the users. Compared with hot rolling, the processing line in a cold rolling mill is more scattered. The steel coils sent by the hot rolling mill must undergo three consecutive technical treatments and the oxide film must be removed with hydrochloric acid. Through the cold rolling mill, the uncoiler opens the steel coil and then the steel strip is carried to a five-stand continuous rolling mill to be rolled into a thin strip coil.
Wire Production Line
The wire production line of TINVO has an annual production capacity of 50K to 300K tons and can produce welding rod steel, Φ5.5-Φ20mm round bar, bearing steel, etc. The whole line adopts full continuous twistless rolling, and the finishing mill adopts high-precision cantilever rolling mill with high rolling speed, high output, high product precision and high mechanical performance. The main equipment includes rough rolling, Pre-finishing rolling mill, finishing mill which is a cantilever type twistless high-speed heavy duty rolling mill, pinch roller, wire laying machine, flying shears, water cooling system, transmission and automation.
The process characteristics of high-speed wire rod rolling mills can be summarized as continuous, high-speed, twistless and controlled cooling. Heavy-duty, high-precision, and excellent performance are the product characteristics of high-speed wire rod mills.
High-speed wire production has the following characteristics:
1) High speed of small diameter roller. High-speed wire rod finishing rolling mills generally use tungsten carbide as the rolling tool, with a diameter of 8 or 6 inches. The speed of the finished product can be up to 9000 r/min.
2) There are many racks and different functions. Each rolling mill only rolls once, so modern wire rolling production line has generally 21-28 rolling mills divided into rough rolling, intermediate rolling, pre-finishing rolling & finishing rolling mill. The rough rolling, intermediate rolling using larger extension and multi-groove rolling and finishing rolling using smaller extension and multi-line rolling to achieve both balances the production capacity of each unit and ensure the dimensional accuracy of the product.