
The mechanical starter is the ideal solution for engine start without external solution. Engine is the source of power, bringing power to modern society.While engine must be started by starter. The common starter is electric starter which needs battery to provide energy. Other starting methods like air starter, require external system to provide energy. All of them rely on external power. Once lacks external power, the engine is “dead”. With mechanical starter, the problem will be solved. Dalin 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 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 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.
Advantages of mechanical spring starter.
Compared to electric starter, mechanical spring starter is maintenance-free. And compared to other means of starting, spring starter requires no external system such us battery, cable, air compressor, fuel tank and so on. Spring starter is waterproof, anti-corrosion, and produces no sparks. With natural anti-explosion structure, you can use it anywhere dangerous.
How to fit a mechanical starter to the engine?
(1)Most of flywheel housings have two bores. 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 Dalin spring starter to the mounting bore when needed.

The marine mooring bollard is a post used on ship’s deck or quay. It is a simple and cost-effective way to fulfill mooring requirements and safely secure vessels alongside jetties, berths, wharves and dolphins in ports and harbors. It is welded by qualified steel tubes with plates. Different types and sizes of the bollards are for sale at YSmarines with best price, which including the single cruciform bollard, double cruciform one, NS2584 type one, DIN 82607 one, ISO13795 one, ISO13797 cruciform one, JIS F-2001 one, GOST11265-73 double cruciform one, dock bollard and other customized type bollard according to the requirement of clients.
T Head Type (Tee Head Type) Dock Bollard
T Head bollard also can be called Tee-head dock bollard. The upon the side of the dock bollard is T head type, which can be different models according to the design of the dock. Tee bollard can cover a vast range of mooring line capacity requirements from small recreational jetties to the largest bulk handling terminals with applications up to 200 tons. It is used in various shipyards, docks and marine applications. It is Suitable for steeper rope angles and is ideal for multi-purpose berths.
Staghorn Bollard(Twin Horn Dock Bollard)
Staghorn bollard also called twin horn dock bollard or double horn bollard is a staghorn shaped type dock mooring bollard. It is commonly used to guarantee the security of marine vessels by mooring ropes. The bollard is supplied with different anchor systems: anchor rods with end-plates and nut fixing for new concrete, anchor rods with epoxy grout and nut fixing for existing concrete and cast-in anchor systems with break-off bolts. It can handle higher line load angles than Single Bitt and Kidney Shaped bollards. This feature may be of particular importance where very large changes in water level result in significant differences in inline angles. Ysmarines is a leading China manufacture for staghorn bollard.
Kidney Dock Bollard
Kidney shaped bollard is one of the most common bollards for jetty, quay and wharf and is suitable when low to the medium tidal range is expected. The dock bollard provides an economical solution for installations where securing mooring lines at high angles. It is particularly suitable for applications where tidal ranges are small and are suited to warping operations along with berths where vessels need to be re-positioned for loading purposes. The kidney dock bollards are available made from the following materials: grey cast iron, ductile cast iron (spheroidal graphite), and cast steel according to the requirement of the dock. It can withstand use in harsh environments.
NS2584 Double Bitt Bollard
The double bitt bollard is made according to the standard of NS2584. The material of the mooring bollard is steel tubes or steel plates. The surface of the bollards should be polished and painted according to Norsk Standard Requirements. It can be fitted with a warping roller if required and also can be deck or quayside mounted. It is suitable for wire or rope with breaking load when cross belayed on the bollard, widely used for small boats.
JIS F 2001-1995 Double Bitt Bollard
The double bitt bollard is made from durable ductile cast iron or cast steel according to the standard of JIS 2001-1995. The surface of the bollard should be without any visible flaws or imperfections. It can withstand use in harsh environments. It is capable of accepting multiple mooring lines due to their twin horn profile and has been designed with a narrow base footprint to fit into spaces on wharves that have limited work area.
ISO13797 Cruciform Bollard
The posts of the cruciform bollard shall be constructed from steel tubes or formed from steel plates according to the standard of ISO13797. And all surfaces of double cruciform bollard with the ropes shall be free from surface roughness or irregularities likely to cause damage to the ropes by abrasion. It shall be coated externally with an anti-corrosion protective finish. Depending on the manufacturing method of the material, ISO13797 cruciform bollards shall be classified as two types, Type A – manufactured by steel tubes ad Type B – manufactured by steel plates. The cruciform bollards are designed and manufactured to our customer's precise requirements and provided with material certification.
GOST11265-73 Double Cruciform Bollard
The Gost11265-73 double cruciform bollard is made of cast iron or cast steel according to the Russian Standard’s requirements. It is also called cross bollard or cross bitts. It shall also be approved by the RMRS.It is a kind of fairlead fittings to lead the mooring rope or towing rope for ships from inboard to outboard. The polished, galvanized surface of the bollard makes the rope get less abrasion.
DIN82607 Double Bitt Bollard
The DIN 82607 double bitt mooring bollard is welded by steel plate according to the requirement of DIN 8570. The plates and post tubes are weldable steel plates, having a yield point of not less than 235N/mm2. The eye plate for tying the stopping-off rope or chain shall be provided for the DIN82607 bollard. It is a type of ship’s mooring and towing fitting installed on the board to belay the mooring and towing rope.
Curved Dock Bollard
Curved dock bollard is one of the most widely used types of mooring bollards. The upon the side of the bollard is also T head type (or Tee head type), which is similar to the Tee head bollard. If you have special requirements for the bollard, we can produce the products according to your drawings. It provides a simple and cost-effective way to fulfill mooring requirements and safely secure vessels alongside jetties, berths, wharves and dolphins in ports and harbors.
ISO13795 Welded Steel Marine Bollard
The welded steel bollard is a double bitt bollard according to the standard of ISO13795, suitable for installation on sea-going vessels to meet normal mooring and towing requirements. The posts of the bollards shall be constructed from steel tubes or formed from the plate. A low-friction surface coating is not recommended so as to increase the holding force of the mooring rope under figure-of-eight belay according to ISO standard. Depending on the construction, the bollards shall be classified as two types, which are Type A – with compact base plate and Type B – with a wide base plate.
The mooring bollards supplied by YSmarines marine equipment has a compact high strength bollard system, anchoring system, best price guaranteed and good after-sale service.

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.
50K-300K Ton Bar Production Line
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.
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 a 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.

50K-300K Ton Wire Production Line
The wire production line 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 forged steel work roll is solid-forged roll made of alloyed steel, close to eutectoid and hypereutectoid steel. It has a good combination with the hardened surface which creates a strengthened working layer, heat check and tough core resistance to breakage. Heat treatment reduces and equalizes residual internal stress.
Feature
High Hardness
The high hardness and great depth of hardness are needed for cold reduction mills.
Increased Heat Resistance
With the strong heat resistance, the roll can be capable of retaining high hardness with the roll under continuous and constant heating rate.
No Metallurgical Flaws
High Resistance
It is also can ideal hardness and high resistance to spalling, surface flaws, cracks, scaling,etc.
No Microstructure Flaws
The surface microstructure consists of fine grain martensite and finely dispersed chromium carbides.
Application
Tandem mills
Reversing cold rolling mills
Temper mills
Forged Steel Work Rolls Used In Rolling Mills
Hot Rolling Mill
The forged steel work rolls can be used for hot plate mill and these rolls have the features of rich in alignment, high toughness and strong wear ability. They are made of forged steel blanks and can withstand the special heat treatment for excellent hardness.
Cold Rolling Mill
The work roll can be used for cold rolling mill. The forged rolls are produced by steel-making, refining and forging. A homogenous highly dispersed structure provides mechanical properties of the internal layer for complicated heat treatment. It becomes easier for exceptional performance by using the forged rolls which are applied in cold rolling mill.
Forged steel roll is an important mill roll with its outstanding working performance. It can be used as work roll, back up roll and intermediate roll with its high hardness, superior yield strength and high resistance to spalling, fatigue, scaling, etc.
Fire Pump
In the event of a power failure in a fire accident, the fire-fighting unit needs to be able to start normally and drive the water pump to extinguish the fire. The requirements for the reliability of the diesel engines are very high. If for some reason, the diesel engine cannot start successfully, the mechanical starter is required as a backup solution to ensure the engine starting.
Emergency
Most of the emergency rescue is mobile, generally in the state of warehouse storage, relatively lack of battery maintenance. Usually meet the failure to start an engine. It is difficult to find backup battery power under the emergency situation. At this time, the mechanical starter can be used to manually start the engine for the rescue problem.
Marine
When the marine ships meet the situation of power off, the emergency generating set is used to generate power for the ship. Mechanical starter is an ideal choice as the backup device for the emergency engine start.
Military
Under the conditions of field military training, the environment is hard and harsh, and the backup is always insufficient. When the battery is out of power, the important military equipment can’t work normally, which may cause serious consequences. The mechanical start device will solve the problem and can ensure the engine starting by manual system without any other external energy.
Special Environments
There’s always no electricity or the power is low under the environments includes mining, offshore gas and some special chemical plants. The engine starter with mechanical starting system will effectively work under these special environments.
Backup Of Other Engine Starters
The mechanical start system can be used as the back up and replacement of other engine starting system, applicable installing on the diesel generator sets of land and marine, mining machinery, engineering machinery and agricultural irrigation and drainage machinery.
Trustworthy Mechanical Starter – Dalin Spring Starter
Introduction
Dalin mechanical spring starter is a mechanical device which can compress and energize the high energy springs and release the potential spring energy to start the diesel engine, which is produced by Chongqing Starting Power Unit Co., Ltd. The company was established in 2008 and has years of experiences engaging in researching and manufacturing mechanical spring start motor with professional R & D team leading by a senior engineer. The Dalin mechanical starter is strictly tested with detailed test bench data including torque, energy, peak, speed, etc will be provided.
Contact Information
Sales : Julie He(Ms.),
Tel/Whatsapp/Wechat: +86-13637706003
Email: sales1@cqstart.com
Marketing : Harland Wang(Mr.)
Email:sundayritian@cqstart.com