China Standard Forging and CNC Machining Are Used for Large Crankshaft, Intermediate Shaft, Rudder Stock and Other Parts in Shipbuilding Industry with Best Sales

Solution Description

Your personalized parts,Personalized answers
Firm profiles
We established in 2571 year, named Xihu (West Lake) Dis. Tongyong Machinery Company. In 2019 renamed HangZhou Hejess Machinery Co.,Ltd and established new plants. 
We are mostly engaged in the developing and production of metal machinery elements and non-common machinery areas, like shafts, flange, gears, rings, sheaves, couplings, bearing supports,  and forgings etc.

Production Parameter

  • Material: Alloy steel,Carbon metal,Carburizing metal,Quenched and tempered steel
  • Heat remedy: Normalizing,Annealing,Quenching&Tempering,Surface Quenching, Induction hardening
  • Machining: CNC Turning,CNC Milling,CNC Boring,CNC Grinding,CNC Drilling
  • Equipment Machining: Equipment Hobbing,Equipment Milling,CNC Equipment Milling,Equipment Slicing,Spiral equipment reducing,
  • Gear Reducing
  • Inspection: Chemical Composition Test,Ultrasonic Test,Penetration Test,Radiographic Test,

Magnetic Test,Tensile Toughness Test,Effect Examination,Hardness Test,Dimension Test.

We can offer forging from 1kg to 5Ton. And make precison machining. Also have welding and assembly abilities.

Good quality Manage
Solution quality is what we are having to pay great consideration to all the time. Each and every item is produced beneath mindful management at each and every approach and inspected by knowledgeable engineers strictly according to the related specifications and buyer requirements, making sure the tremendous efficiency of our merchandise when arrive at buyer.
Ø Manufacturing Circulation Chart
1, Order Examining
    Know requirements of raw substance, chemical composition, Mechanical houses.
    Analyzing how to forging and how to make warmth treatment.
2, Raw substance.
    Use which uncooked materials, plate, spherical bar, metal ingot.
   According your elements, decide on the greatest value performance one particular.
   If you necessary particular material, will custom-made from steel manufacturing facility.
   Customized raw material in accordance your requirments.
3, Forging
    Make forging procedure chart and forging form
    Make forging drawing
    Make 3D drawing
    Make forging mould
four, Pre –  forging
5, Finish – forging
Natural fuel heating furnaces are monitored and managed by pc programs to make certain exact heating in set time and temperature assortment as necessary.
A broad selection of forging tools,which includes friction press, hudraulic hammer, forging hammers.With the aids od clever software program,proper deformation,forging ration,ingot size and fat,forging tooling and tools will be decided to make certain the wrought construction by means of hout and audio quality.
6, Pre- machining
seven, Make UT (ultrasonic) inspection.
eight, Make heat therapy
nine, Inspect hardness and mechanical properties.
10, Make precision machining / concluded machining.
      Use CNC machining heart, CNC milling, CNC dull, CNC grinding
11, Examine dimenssions.
twelve, Guarding and packing.

Principal market :  America, Australia, Malaysia,Israel,Britain, Russia,Canada, ect.

Services : The services we can provide are : FOB, CIF, DAP. Only give me the drawings and requirements, you will receive the goods at your home.
 Wehas accumulated rich knowledge and experience in the producing and exporting. Familar every process, when metting problems, be able to find a solution timely.

Superb services frame of mind, fast response pace, on-time shipping and delivery, consciousness of responsibility and versatility is what we are practising from the quite starting, combining with higher credit history, competitive value, near conversation with customer and revolutionary way of functioning, make us acquire far more and much more organization and superb client satisfaction.
To decide on us, HangZhou CZPT Machinery, as your company partner, by no means will you locate you are mistaken!

Production Particulars


Display the creation approach as underneath photographs:

Our Merchandise Catalogue

How to Identify a Defective Drive Shaft

The most typical issues connected with automotive driveshafts include clicking and rubbing noises. While driving, the sounds from the driver’s seat is usually apparent. An knowledgeable vehicle mechanic can simply identify whether the audio is coming from both sides or from one particular facet. If you recognize any of these indicators, it’s time to send out your automobile in for a appropriate prognosis. This is a guidebook to identifying if your car’s driveshaft is defective:

Signs and symptoms of Driveshaft Failure

If you happen to be getting trouble turning your vehicle, it truly is time to examine your vehicle’s driveshaft. A undesirable driveshaft can restrict the general handle of your automobile, and you must resolve it as shortly as feasible to steer clear of additional issues. Other signs of a propshaft failure incorporate strange noises from beneath the car and problems shifting gears. Squeaking from under the car is one more signal of a defective driveshaft.
If your driveshaft fails, your car will end. Despite the fact that the motor will nevertheless operate, the wheels will not switch. You may possibly listen to unusual noises from underneath the motor vehicle, but this is a uncommon symptom of a propshaft failure. Even so, you will have plenty of time to correct the difficulty. If you don’t listen to any sounds, the problem is not influencing your vehicle’s capacity to move.
The most apparent signs of a driveshaft failure are dull seems, squeaks or vibrations. If the drive shaft is unbalanced, it is most likely to harm the transmission. It will demand a trailer to take away it from your car. Apart from that, it can also have an effect on your car’s overall performance and demand repairs. So if you listen to these symptoms in your auto, be certain to have it checked by a mechanic right away.

Travel shaft assembly

When planning a propshaft, the design and style need to be based on the torque needed to travel the car. When this torque is also large, it can result in irreversible failure of the push shaft. As a result, a good drive shaft design should have a prolonged provider existence. Here are some guidelines to aid you design a good driveshaft. Some of the major elements of the driveshaft are listed below.
Snap Ring: The snap ring is a detachable element that secures the bearing cup assembly in the yoke cross gap. It also has a groove for finding the snap ring. Spline: A spline is a patented tubular machined factor with a sequence of ridges that match into the grooves of the mating piece. The bearing cup assembly consists of a shaft and end fittings.
U-joint: U-joint is necessary because of to the angular displacement among the T-shaped housing and the pinion. This angle is specifically big in raised 4x4s. The design of the U-joint must guarantee a consistent rotational pace. Appropriate driveshaft layout have to account for the variation in angular velocity between the shafts. The T-bracket and output shaft are hooked up to the bearing caps at each ends.


Your automobile has a set of U-joints on the driveshaft. If your vehicle wants to be replaced, you can do it by yourself. You will require a hammer, ratchet and socket. In buy to remove the U-joint, you should very first remove the bearing cup. In some situations you will require to use a hammer to get rid of the bearing cup, you should be cautious as you will not want to injury the push shaft. If you are not able to remove the bearing cup, you can also use a vise to push it out.
There are two varieties of U-joints. A single is held by a yoke and the other is held by a c-clamp. A complete ring is safer and excellent for vehicles that are often employed off-street. In some cases, a entire circle can be used to restore a c-clamp u-joint.
In addition to abnormal torque, excessive hundreds and poor lubrication are frequent causes of U-joint failure. The U-joint on the driveshaft can also be ruined if the motor is modified. If you are driving a automobile with a greatly modified engine, it is not enough to replace the OE U-joint. In this situation, it is critical to just take the time to properly lubricate these components as necessary to keep them functional.

tube yoke

QU40866 Tube Yoke is a frequent alternative for destroyed or damaged driveshaft tubes. They are desirably manufactured of a metallic materials, this kind of as an aluminum alloy, and contain a hollow part with a lug structure at a single finish. Tube yokes can be produced making use of a selection of strategies, like casting and forging. A typical strategy entails drawing strong elements and machining them into the ultimate condition. The resulting factors are much less pricey to create, particularly when in contrast to other varieties.
The tube fork has a connection point to the driveshaft tube. The lug composition provides attachment details for the gimbal. Normally, the driveshaft tube is 5 inches in diameter and the lug framework is 4 inches in diameter. The lug structure also serves as a mounting stage for the drive shaft. As soon as put in, Tube Yoke is effortless to maintain. There are two sorts of lug buildings: one is forged tube yoke and the other is welded.
Large-obligation series generate shafts use bearing plates to protected the yoke to the U-joint. All other dimensions are secured with external snap rings. Yokes are normally machined to accept U-bolts. For some apps, grease fittings are used. This attachment is much more appropriate for off-highway cars and overall performance autos.

finish yoke

The finish yoke of the push shaft is an integral part of the travel train. Selecting a large-quality end yoke will help ensure lengthy-time period operation and prevent premature failure. Pat’s Driveline offers a full line of automotive conclude yokes for electrical power take-offs, differentials and auxiliary gear. They can also measure your current areas and provide you with large high quality replacements.
A U-bolt is an industrial fastener with threaded legs. When employed on a driveshaft, it provides better steadiness in unstable terrain. You can buy a U-bolt kit to secure the pinion carrier to the push shaft. U-bolts also appear with lock washers and nuts. Efficiency autos and off-highway vehicles often use this kind of attachment. But ahead of you set up it, you have to make sure the yoke is machined to settle for it.
Finish yokes can be made of aluminum or steel and are designed to give power. It also gives unique bolt types for various purposes. CZPT’s drivetrain is also stocked with a entire line of automotive flange yokes. The organization also generates custom flanged yokes for numerous popular brands. Given that the firm has a comprehensive line of substitute flange yokes, it can support you remodel your drivetrain from non-serviceable to serviceable.


The initial phase in restoring or replacing an automotive driveshaft is to exchange worn or damaged bushings. These bushings are located within the generate shaft to supply a easy, risk-free trip. The shaft rotates in a rubber sleeve. If a bushing wants to be replaced, you must first verify the handbook for suggestions. Some of these factors may possibly also need to be changed, this sort of as the clutch or swingarm.

China Standard Forging and CNC Machining Are Used for Large Crankshaft, Intermediate Shaft, Rudder Stock and Other Parts in Shipbuilding Industry     with Best SalesChina Standard Forging and CNC Machining Are Used for Large Crankshaft, Intermediate Shaft, Rudder Stock and Other Parts in Shipbuilding Industry     with Best Sales