Auxiliary equipment to various machinery and equipment other than rolling mill. It consists of mechanical equipment used to complete a series of auxiliary processing procedures. According to the difference usages, auxiliary equipment can be classfied into the flying shear machine, drawing machine, straightening machine, cooling equipment, lifting and transporting equipment, etc. The selection of auxiliary equipment is very important for rolling mill. The equipment should meet the requirements for product production.

Hot Rolling Mill Cooling Bed

The cooling bed is used for the rebar hot rolling mill production line and consists of a mechanical transmission system, a water cooling system, a cold bed work surface, and a fixed bracket. The cooling bed has the advantage of significantly reduce energy consumption and cost and improve the processing performance of metals and alloys. Hot rolling usually uses large ingots, which not only improves the production efficiency, but also improves the rolling speed. The output of the cooling bed is 25ton/hour and final dimension is Φ8-32 deformed steel bars. The Maximum bed load is 40 tons.

Rolling Line Water Cooling System For Steel Bar Production

The water cooling system in steel plant mostly is used in the rolling mill line for steel bar production. Operators can control flow and system cooling by pulsing each spray up to five times per second. Pulsing capability enables operation at lower flow rates without compromising impact, spray angle or drop size. The system will automatically adjust the cooling profiles based on the inputs from the shapemeter. The water cooling system for the rolling mill has modular design allows for simply maintenance when needed. Typically, these self-cleaning valves require no maintenance for at least five years and are constructed of high quality, stainless steel internal components to ensure accurate, long-lasting performance.

Pickling-Free Rust Remover Machine

The pickling-free rust remover machine mainly is used for rust, polishing, lubrication, etc. The acid-free machine simplifies rust cleaning procedure. It can complete the shelling, rust removal, polishing, lubrication and other tools at a time. The the newly wire treated has a longer rust resistance and can be used indoors for more than 6 months. There are various types of pickling and descaling machines, which can handle wires of different diameters: φ2.5mm-4.0mm, Φ5.5mm-8mm, Φ12mm-16mm, Φ16mm-24mm.

For more professional knowledge, please visit on the page of TINVO rolling mill articles

The engine is the source of power, bringing power to modern society. While the engine must be started by a starter. The common starter is an electric starter that needs a battery to provide energy. Other starting methods like air starter, require an external system to provide energy. All of them rely on external power. Once it lacks external power, the engine is “dead”.

The mechanical starter is the ideal solution during the above situations. Cqstart spring starter, using a simple mechanical mechanism, stores the energy by compressing the springs and releases the spring’s potential energy by pulling the trip lever to turn the engine’s flywheel.

What is the mechanical spring starter?

A mechanical starter which stores the manpower energy by compressing the disc springs and releases the energy by pulling the trip lever. And then the drive pinion will drive the flywheel to rotate.

It is the ideal solution for a black start, mostly used in military, emergency rescue, firefighting, marine and some other conditions where require high reliability. It is also called mechanical spring starter, spring startup, hand starter, hand-operated spring starter.

How to fit a mechanical starter to the engine?

(1)Most of the flywheel housings have two bores. The electric starter has taken a bore. And spring starter can be installed to the other bore.

(2) If the engine only has one mounting bore, just remove the electric starter and install spring starter to the mounting bore when needed.

Advantages of mechanical spring starter.

Compared to an electric starter, the mechanical spring starter is maintenance-free. And compared to other means of starting, spring starter requires no external system such as battery, cable, air compressor, fuel tank and so on. Cqstart spring starter is waterproof, anti-corrosion, and produces no sparks. With natural anti-explosion structure, you can use it anywhere dangerous.

Marine roller fairlead, also called guide roller, is installed on the round-shaped base of ship deck between the fairlead and winch. It is used to change the direction of mooring ropes and helps lead the ropes to the reel. YSmarines supplies a variety of sizes and types of the roller fairleads including swivel head fairlead, DIN81906 warping roller, JIS F 2014 warping roller, vertical guide sheave, NS2585 warping roller and so on. YSmarines also can offer the customized fairleads according to customer’s special requirements.

NS2585 Warping Roller Fairlead
NS2585 warping roller is the same as the GB/T 10105-88 fairlead. It is cast by the finest quality marine mild carbon steel for added durability. All surfaces in contact with the ropes shall be free from surface roughness or irregularities likely to cause damage to the ropes by abrasion. It has a high breaking load of a tightwire. The compact design, precision machined smooth surface and easily removable shafts ensure the good wear and corrosion resistance of the fairlead. It is used to lead the direction of mooring ropes for marine ships.

ISO13767 Shipside Roller Fairlead
The shipside roller is made in accordance with the standard of ISO 13767. The safe working load (SWL) intended for the use of the roller fairlead shall be noted in the towing and mooring plan available onboard for the guidance of the shipmaster as specified in MSC/Circ.1175. There are two types of fairleads as the construction, which include 2-roller type and 3-roller type.

Vertical Guide Sheave
The vertical sheave is a type of mooring fittings to guide the mooring rope vertically on the deck. The fairlead is built to withstand breaking strength of indicated rope at 90-degree sheave wrap on sheaves. It is made of cast steel with hardened rope groove for longer life. There can be one sheave or two sheaves together. It is a removable guide roller with an epoxy primer coating. It is a special sheave for high-performance synthetic ropes.

JIS F 2026 Roller Fairlead
The roller fairlead is manufactured strictly according to the Japanese Standard JIS F 2026-1980. It is also known as universal fairlead with horizontal rollers and vertical rollers. It is made of stainless steel. Its surface is polished and galvanized which has high corrosion-resistance. It is usually located on the deck end or in the bulwark. It can perfectly guide the direction of ropes and protect them. There are three types for the fairleads: Type A (4 rollers), Type BR (5 rollers) and Type BL (5 rollers and symmetrical to BR type).

JIS F 2014 Warping Roller
The warping roller is manufactured according to the JIS F 2014 -1987 standard. It is also known as CB58-83 fairlead. It is used as a shipside roller fairlead and is to change the direction of the ropes. All surfaces of the fairlead, including welding, shall be free from any visible flaws or imperfections. The roller diameter is from100mm to 450mm, suitable for rope diameter from 40mm to 80mm. The warping roller has three types including type A (one roller), type B (two rollers as a group) and type C (3 rollers as a group).

For more professional detailed information, please visit the product page of marine roller fairlead

The straightening machine belongs to straightening equipment and is one of the steel processing machinery. It is applicable to straighten and cut steel bars with a diameter of less than 14 mm with customized cut length according to the different requirements of the clients, widely used for cold-rolled ribbed steel bars or hot rolled wire rods with high-speed straightening. The types of straightening machine include rebar wire rod straightening machine, pipe and round bar straightening machine, scrap rebar straightening machine, CNC straightening and cutting machine. The machine can adjustable straightly cut stainless steel wire, aluminum wire, cold-drawn wire, plastic-coated steel wire, tubes, round bar steel, etc with uniform incision, smallest error, and high performance.TINVO provides superior quality wire straightening machine in china, the most competitive price guaranteed.

Rebar Wire Rod Straightening Machine
The straightening machine is a multi-wheel rebar straightening machine with a V-shaped groove, 22pcs vertical straightening wheels and 7pcs horizontal straightening wheels. The vertical alignment wheel is actively aligned, the transmission mode is gear transmission, and the horizontal alignment is passive. The straightening wheel is made of 9Cr2Mo. The incoming line is manually threaded. The wire speed of the machine is adjustable and the maximum speed is 150 meters/minute. Straightening, shearing and other parts are stable, safe and reliable. The entire rebar steel straightening and cutting machine includes a straightening section, a shearing device, a silo, and an automatic console. The straightening machine is equipped with a 5.5KW servo motor and a cycloidal pin reducer to drive the fly shearing work. The motor control method is a servo controller, so the cutoff machine acts with high speed and low loss.

CNC Straightening and Cutting Machine
Compared with other manufacturers’ similar products, the straightening frame of GT4-14 adopts the hot rolling process, which has the features of beautiful appearance, strong rigidity, good straightening effect. The hydraulic system is simple, reliable, with no oil leakage and more accurate. It has the microcomputer control, automatic straightening, automatic length, cut off automatically. The nosier become lower and can save electricity. The CNC wire straightening machine has smooth operation with low fault rate and It’s easy for maintenance.

Scrap Rebar Straightening Machine
The scrap rebar straightening machine not only has the function of straightening steel but also can remove the thread of waste rebar bar. The machine is to change the shape of the steel bar into a straight strip that can be reused, by means of passing the old rebar and the waste round steel through several straightening rolls. It is characterized by advanced design with safe, reliable and easy operation as well as stable performance. It is able to straighten scraped rebar with high efficiency. Cutting function has been added to remove unwanted part. The four heavy-duty wheels can be used to move the machine anywhere easily. It reduces the cost of the materials and protects the environment by re-using the scraped rebar.

Pipe and Round Bar Straightening Machine
The pipe straightening machine can be used to straighten tubes and round bar steel. It is possible to straighten pipes and rods of Φ6-Φ30mm, with different types of straighteners, for different specifications. It is applicable for straightening bending deformation pipe, cleaning the surface of the steel pipe ash and steel pipe paint. The machine has easy and compact structure for convenient and high efficiency operation. It is a multi-functional integration which can complete multiple operations of straightening, derusting and coating the steel tube at one time and has no damage to the steel tube. It can save time, labor and environmental protection.

The Basic Composition Of Spring Starter

The spring starter assembly consists of four major parts: a disk drive mechanism, an energy storage mechanism, a release mechanism and a clutch mechanism. The figure below shows the basic structure of a typical disc spring energy storage motor.

The Main Work Process Of Spring Starter

The energy storage mechanism is the main mechanism of Cqstart spring starter, the main parts are disc springs and main shafts. Together with the components, they cooperate with, the following functions are realized. First, they can convert the aforementioned manpower input torque into an axial force. This force is compressed and turns into energy which is stored in the disc spring group. Secondly, they can convert the spring potential energy which is stored through compressing spring into torque output through the main shaft to form the power that drives the rotation of the diesel engine.

Detailed Operating Structure Of Spring Starter

The Releasing Mechanism

The release mechanism is a part of the operating mechanism for spring starter, its main parts are the lifting rod assembly and the releasing lever working chain. The operator performs two operations with the lifting lever and the releasing lever. The purpose of operating the lifter is to keep the releasing mechanism in a state of being ready for energy storage, in which state the rotation of the spindle will be limited in order to achieve energy storage of the spring. The purpose of operating the releasing lever is to cancel the limitation of the spindle rotation when the diesel engine needs to be started; and at the same time completing the discharge of the disc spring, the output torque of the spindle, and the starting process of the diesel engine. In that progress, the shaft drives the flywheel drive gear to rotate.

The Clutch Mechanism

The clutch mechanism is a mechanism that combines and disengages the movement of the spring starter and the engine. The main part is the flywheel drive gear, which generates axial movement by means of a spiral groove on the starter main shaft. When the diesel engine needs to be started, the main shaft rotating pushes it to move in the direction of the flywheel to achieve meshing with the flywheel ring gear. Conversely, when the starter is working and the diesel engine begins to rotate actively, the flywheel of the diesel engine drives the rotation of the flywheel for driving gear while moving it backward along the axis, disengaging engagement of the gears.

disc drive mechanism

The disc drive mechanism is a manpower input mechanism, and the main parts are the disc drive shaft and the transmission gear. It is the only way to convert manpower into spring energy. One of its functions is to determine the disk movement space and the angle required for the disk to make the operation convenient and comfortable. Secondly, it changes the direction of the input torque so that the axis of rotation conforms to the axis direction of the disk spring energy storage. Third, it can limit the reversal of the disc axis. And last, it is the radial support of the spindle and the axial thrust.

Easy Way to Start a Diesel Engine

Cqstart spring starter is easy to operate when there is short of electricity, which compares with other ways. When the diesel engine needs to be started, first needs to ensure that the diesel fuel supply system of the diesel engine works normally. Then pulling the lifting rod of the starter to make the releasing mechanism in the preparation state of energy storage, and using the rotating handle to rotate the starter disk in the specified direction for reaching the required energy storage state. And then, pushing the releasing lever in the direction indicated. After that, the diesel engine will be started.

For more professional knowledge, please visit the page of Cqstart spring starter article

Marine mooring chock has two types: deck mounted chock & bulwark mounted chock. The material is casting steel ZG230-450 normally. IACS approved quality to withstand all conditions. BV, ABS, LRS, DNVGL, RS, IRS, CCS, KR, NK is available. YSmarines could also provide you with a customized design with CAD drawings.

ISO13729 Closed Chock

The closed chock is made according to the standard of ISO 13729. It is normally applied for the ship which uses wire ropes. The radius of the closed chock surface was designed based on the bending ratio of rope through the chock of not less than twelve times the wire rope diameter. The closed chocks can also be classified into two types by its installation site including deck-mounted closed chock and bulwark mounted one.

ISO13728 Panama Chock

The Panama chocks are made according to the ISO 13728 standard and are normally adopted for ships passing through the Panama Canal, which are normally assisted by locomotives using steel towing wire. They meet normal mooring requirements and Panama Canal requirements. The nominal size the Panama chock is denoted by reference to the width of the opening, in millimetres, which are 310mm and 360mm. It can be classified as deck-mounted Panama chock and bulwark mounted one according to their installation site.

ISO13713 Mooring Chock

The mooring chock is made according to the ISO 13713 standard and is a type of ship’s mooring and towing fitting installed on the shipside to lead the mooring and towing rope from the ship’s inboard to outboard. The mooring chocks are normally adopted for ships which use nylon or other synthetic ropes rather than wire ropes considering the small bending ratio. It has two types depend on its installation including deck mounted one and bulwark mounted one.

Bulwark (EU Type) Towing Chock

Bulwark towing chock also known as EU type towing chock, is installed on the bulwark. It is made of cast steel. The surface of the towing chock is fine polished by 2-layer of shop primer anti-rust painting after sandblasting 2.5and well painted without any bur and the edge is to protect the towing ropes from broken during work. It is similar to NS 2589 chock, not often used in Asian ships.

DIN81915 Panama Chock

The Panama chock is made according to German Standard DIN 81915. The Panama chock, mounted on deck or bulwark, is closed chock which is used to control the position of mooring ropes. The material of the chock is GS-38 (material 1.0420) according to DIN1681 (cast steel). All the edges of the Panama chock must be ground smooth, especially where the rope is in contact with the chock. And it is required to be a blast and primed for the surface treatment. It is used for vessel, tug, cargo ship, military ship, industrial ships etc.

NS2587 Bulwark Mounted Mooring Chock

NS2587 bulwark mounted mooring chock sometimes also called NS2587 mooring pipe, follows the strict quality control system. Its surface is smooth without burs or sharp edges. It helps reduce the friction of the mooring rope. But this type of chock cannot satisfy the requirements of the Panama Canal Commission (PCC). For this chock, it has two optional nominal dimensions. Type A is a welded mooring chock. It is more often used in European countries than in Asia.

For more professional information, please visit on the website of ysmarines.com

The types of wire drawing machine include vertical drawing machine, chain-type drawing machine, roller die drawing machine, horizontal drawing machine and pully-type wire drawing machine, mainly used for drawing steel wire, copper wire and aluminum wire. During the drawing process, the steel wire and the surface of the reel do not slide relative to each other in the circumferential direction of the reel and the surface wear of the two is relatively small. When a certain reel is temporarily stopped in the middle, the customers can still rely on their respective product volume to work as usual. The wire drawing machine has the advantages of simple structure, convenient operation and maintenance, and low manufacturing cost. It has features of large low-frequency torque with stable output, the proportional linkage control with high accuracy, slip compensation function, high-speed accuracy, maintaining constant tension and preventing disconnection.

Vertical Drawing Machine

With the vertical downward working mode of the reel outlet, 1-3 tons of wire can be continuously drawn by vertical drawing machine at a time. The equipment has the dual functions of drawing and take-up. It is suitable for high, medium, low carbon steel, special-shaped steel wire and other non-ferrous metal wire. The machine ia applied for drawing wire in the factories,such as wire-steel factor,metal mesh factory and nail making factory etc. In order to lower residual heat on the surface of the block, the cooling means is installed in inter-wall of the block,the wortle is soaked in cooling water to reduce its working temperature.The vertical drawing machine has precise design, easy operation and the product is made of high quality materials undergoing high abrasion- resistance and low deformation heat treatment process and the machine is endurable with long time preciseness.

Chain-Type Metal Pipe Bar Drawing Machine

Chain-type pipe drawing machine is suitable for the drawing of tube material. The metal drawing machine enters into the center frame mold after passing through the feed end of the raw material. After being clamped by airpower, the chain hook pulls the chain. When the material is drawing, it requires the little vibration on the main body and the uniform stable pulling speed. The best precision of the finished product is achieved. The finished product has a smooth surface and even high quality and it is usually stretched to meet the setting requirements.

Roller Die Drawing Machine

Multiple roller die drawing machine can derust, diameter reduce and straighten various new and old steel wires of Φ8mm-2.6mm. It can reduce the diameter of the steel bar by 3mm at a time without alloy dies, drawing powder, indenter. The wire drawing machine has the advantages of low processing cost, simple operation, easy movement, high efficiency, low noise, etc. It is the ideal equipment for wire drawing processing of scrap steel bars, as well as its products are widely used in hardware, construction and nail making industries.

Multi-Drums Wire Drawing Machine

The wire drawing machine is mainly used for drawing steel wire, copper wire and aluminum wire. It is also called pully-type wire drawing machine and are divided into two drums, triple drums, four drums, five drums, or customized. It has the advantages of high production efficiency, quick drawing speed, small floor occupation, low investment, and easy operation. The machine has a significant energy-saving effect and can save a large amount of electric power for users and is mainly used for weaving net, water tank drawing, construction, galvanizing, etc.

Horizontal Rebar Wire Rod Drawing Machine

Horizontal wire drawing machine enables the steel bar to pass through the wire drawing die from different directions at one time. It can be used in three-ribbed rolling mill. The steel bar after the drawing is directly introduced into the rolling mill for getting a three-ribbed threaded steel bar. The machine is equipped with a 30KW motor. Compared with the continuous pully-type wire drawing machine, the machine has the characteristics of small floor space, energy-saving, simple operation and high production efficiency.

For more professional knowledge, please visit on hrbtinvo.com

To learn the differences among the engine starters, firstly we need to learn how we can start an engine from a state of rest.

You need to start crankshaft of the engine at first, then the piston reciprocates. After that, the combustible mixture work in the cylinders pushes the piston downward to turn the crankshaft. At last, the diesel engine is able to run the working cycles automatically.

Several necessary conditions for starting a diesel engine

1. Diesel

2. Air

3. Sufficient energy to drive cylinder compressed.

Diesel and air are both fuels. The only way to ignite them is to turn the crankshaft to a certain speed.

The device used to turn the crankshaft is starter, which turns the flywheel first, and then flywheel turns the crankshaft.

Several types of starters

Hand Starter

Hand starter is the oldest way to start an engine, and it only needs manpower to crank the shaft to the rated speed. If the operation for the starter is inappropriate, people always get injured. Some small agricultural machines are still using hand starter.

Electric Starter

The electric starter is also called electric motor which can convert electricity into mechanical power, driving flywheels. It is the most popular and cheapest method to start an engine, and it is even available for remote control. The complete electric starter system includes starter motor, battery, cable, charger, and etc. You can find an electric starter almost everywhere, such as an electric starter for the car.

Air Starter An air starter is also called a pneumatic motor, it can convert the pressure energy which compressed by air into mechanical energy. To start a diesel engine, it needs to use external force to turn the crankshaft first. Then the motor reciprocating, pneumatic power drives piston motor and gear motor. The complete air starter system includes air starter, pipe, gasholder, air compressor etc. The complete system of air starter is relatively expensive.

Hydraulic Starter

The hydraulic starter is also called a hydraulic start motor, which can convert hydraulic energy into mechanical energy. A complete hydraulic starter includes a fuel tank, hydraulic starter, manual charging device, filter, manometer, accumulator and control valve. The complete system is also expensive, and it often applies to special working conditions.

Compressed Air Starter

According to the ignition sequence of the diesel engine, a compressed air starter pushed the compressed air into the cylinder during the expansion stroke. And the piston will work with the driving force by compressed air, so that the diesel engine reaches the starting speed and start to work automatically. The complete system has more power than other systems, and it is reliable. You can also use the compressed air for braking, but it is more complicated and heavier than any other starting system. So it is not applicable for small engines.

Spring Starter

Spring starter is a new product for an indirect hand starter, which has been improved. It is also called a mechanical spring starter. It uses a friendly design comparing to the old hand crank starter. You only need to fit and rotate the handle to compress the disc-springs, and the springs will store the energy. After you pull the trip, the system will release the spring’s potential energy to turn the flywheel of the engine. Mechanical spring starter can make sure that the engine can start well even there is out of electricity or other power resources.

As you can see, the spring starter is the best way to start an engine if it is an emergency. I know you are searching for it now, actually you can click Cqstart spring starter to get more info.

You can also contact these people directly:

Sales: Julie He(Ms.),

Tel/Whatsapp/Wechat: +86-13637706003,

Email: sales1@cqstart.com

Marketing: Harland Wang (Mr.),

Email: sundayritian@cqstart.com

For more information, please visit on cqstart.com

The mooring chock is a very important marine equipment. There’re different types of mooring chocks with different standards including ISO, JIS, DIN, NS. SWL will be from 8KN to 3000KN according to your requirements. In the process of mooring ship, it bears huge loads. Usually, the ship bollards and mooring chock are for the whole ship mooring use. The general bow and stern of ship block the bollard fairlead, quantity large. Of intermediate section above without or bollards, fairlead rarely. Fairlead is oblique chock more insurance, because it is closed, the cable will not jump out. The triangle chocks are widely used for small boats and different vessels, such as container vessels, tankers, bulk carriers, tug, dry cargo vessels, etc.

JIS F 2030-1978 Single Point Mooring Pipe

The mooring pipe is a bulwark mounted type and is made according to the standard of JIS F 2030-1978 (Japan Industrial Standards F). It is manufactured by cast steel JIS G 5101. It is a kind of closed chock and is an important part of standard mooring setup, between ships bitts and the mooring bollards. It is used to control the position of mooring ropes on board for large vessels. It has two types, which are oval single point mooring pipe (Type A) and oval inclined one (Type B).

GOST25056 Deck Mounted Mooring Chock

The marine mooring chock is deck mounted type and the manufacturing method should be the requirement of GOST25056 standard. It is a type of ship’s mooring and towing fitting installed on the board to belay the mooring and towing rope, which is widely used in Russia. The yield strength and tensile strength for the material of GOST25056 chock should be more than 216MPa and 412MPa according to the requirements. YSmarines provides you with the best quality deck mounted chock with high quality cast steel for heavy use and high working load.

Triangle Type Mooring Chock

The mooring chocks are triangle types. They will be towed on deck with towing bitts. The shape of the towing chock is a triangle. And the surface of the mooring chocks is fine polished and well painted without any bur. The inside of the triangle type mooring chock can also be covered by 3mm or 5mm SS316L plate to protect the chock and mooring ropes both. They are widely used for small boats and different vessels, such as container vessel, tankers, bulk carriers, etc.

NS2590 Deck Mounted Mooring Chock

NS2590 mooring chocks are deck mounted types and are approved by Panama Canal Commission(PCC). They are welded mooring chocks. The chocks shall be cleaned to Sa2.5 in accordance with Swedish standard SIS 05 59 00 and painted with an anti-corrosive primer. Surfaces coming into contact with the mooring the line shall be smooth. Furthermore, burrs or sharp edges shall not occur.

NS2589 Bulwark Mounted Mooring Chock

The mooring chocks are the bulwark mounted types and are made according to the NS 2589 standard. They are approved by the Panama Canal Commission (PCC). They also are casting mooring chocks.The Nominal Size of 300*250mm is designed as a single chock in PCC and shall be capable of withstanding a strain of 445KN on a towing wire. The Nominal Size of 400*250mm is designated as double chock in PCC and shall be capable of withstanding a strain of 625KN on a towing wire.

JIS F 2017-1982 Panama Chock

The Panama chock is made according to the JIS F 2017-1982 standard and is popular as mooring equipment, which can stand great loads when mooring ships and vessels. It is made of high quality cast steel. It can be either mounted directly onto or into the hull or be supplied with a base plate to be bolted to the plinth. It is used for ships passing through the Panama Canal. There will be two types of the Panama chocks according to their installation site, which includes deck mounted (AC type) Panama chock and bulwark mounted (BC type) one.

JIS F 2007-1976 Mooring Pipe

JIS F 2007-1976 Mooring Pipe is a bulwark mounted chock, which is used to guide or lead the mooring ropes. The material of the mooring pipe is cast steel according to JIS G 5101. Its inside shape of the mooring pipe makes the surface more smooth and can reduce the friction of the mooring ropes. It has two types according to its shape, which includes oval-shaped mooring pipe and circular shape one. The nominal size of the mooring pipe ranges from 150mm~500mm.

JIS F 2006-1976 Open Chock

The Open Chock is made according to the standard of JIS F 2006-1976 and is a special model of the marine mooring chock used for small boats to lead the mooring rope from ship’s inboard to outboard. It also can be applied for military and industrial ships, operating effectively throughout the world. The open chocks have two types according to their material including the SC type one made by cast steel and the FC type made by cast iron. Both types are deck mounted open chock.

JIS F 2005-1975 Closed Chock

The closed chock is made according to the JIS F 2005-1975 standard of the Japanese Standard Association. The closed chock is made of cast steel. Its surface is galvanized, polished and painted to be smooth, which can reduce the friction of the mooring and towing ropes. It is welded at a bow ship. It is used for temporary mooring to guide rope from inboard to outboard a large vessel and applied at the vessel’s bow bulwarks to prevent wear and tear of the mooring line.

For more detailed information, please visit the website of YSmarines marine equipment, in which the users can get the detailed professional knowledge about the marine mooring chock.

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 a 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.

TINVO’s core products contain various types of 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.

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 Casting Machine(CCM). we have appointed a team of highly experienced engineers and technicians. Owing to a sophisticated manufacture 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.

Contact Information

Email: inquiry@hrbtinvo.com

Address: Daowai, Harbin City, Heilongjiang, 150050, China.

Telephone: +86 13796661748