Product Description
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Name: Made in china casting iron OEM and customized farm tractor spare parts components pump cap
Material: Casting Iron or Steel
Min order: 1000 pcs
Packing: export standard packing
Customized production is available as your drawings or sample.
| Process | Sand Casting and CNC machining | ||||||
| Material | Grey Iron , Ductile Iron, Carbon Steel | ||||||
| Weight | 0.1Kgs~100Kgs | ||||||
| Testing instrument | composition testing | Spectrometer, Metallographic microscope | |||||
| Performance testing | Hardness tester, Tensile testing machine | ||||||
| Size Measuring | Vernier Caliper, Depth Caliper, feeler gauge,Thread Gauge , Height Gauge | ||||||
| Roughness | Ra0.8~Ra6.3 | ||||||
| Machining Equipment | CNC Center , CNC Machines, Turning, Drilling, Milling, Boring machine,Grinding Machines, | ||||||
| Wire EDM,Laser Cutting&Welding, Plasma Cutting &Welding, EDM etc. | |||||||
| Quality control | Sampling inspection of raw materials and semi-finished products, 100% Inspection of finished products | ||||||
| Surface Treatment | Sand Blast , Painting, Powder Coating, Galvanized , Hot Galvanized | ||||||
| Production Capacity | 60000T / Years | ||||||
| Lead Time | Normally 30 – 45 Days. | ||||||
| Payment Terms | T/T , L/C | ||||||
| Material Standard | ASTM , AISI , DIN , BS, JIS, GB, | ||||||
| Certification | ISO9001:2008, IATF16949:2016 | ||||||
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About quality
We insist that the survival of the company should depend on the products quality continuous improvement, without which we cannot survive for long.
Our product quality control system
Quality control involves the inspection and control of incoming materials, production process and finished products.
1 Firstly, metallurgical microscope analysis is performed on randomly sampled incoming materials to ensure that the chemical composition meets the production requirements.
2 Then, during the production process, there are QC personnel to conduct timely spot checks to ensure that the product is free of defects during the manufacturing process and to coordinate and handling of any abnormal quality issues that may arise.
3 The final step in the production process is a magnetic particle detector for metal parts to detect hidden cracks or other defects.
4 All the finished metal parts is sampled in proportion and sent to the laboratory for various mechanical property tests and dimensional measurements, and the surface quality is manually 100% inspected.
5 About the quality management system, we strictly carry out system management in accordance with ISO9001 and TS16949 quality standards and 5S lean production management is implemented on the production site.
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Our Advantages:
1 We have a complete production process and equipment research and development capabilities for non-ferrous metal forming. Over 25 years of production experience of forging equipment and casting equipment make us own deep level understanding and operating of all equipments’ performance and running.
2 Our parent company, HiHangZhou Group, is a world-renowned high-end machinery manufacturing enterprise with more than 30 domestic subsidiaries and branches. The sales volume of 4 products ranks No1 nationwide and even worldwide, providing us with a strong technical and financial support.
3 One-third of over 300 staff are technical technical R&D members, ensuring the continuous technical innovation and the sustainable development of our company.
4 Our company implements the employee stock ownership system of company shares Increasing members’ sense of responsibility, creativity and work motivation.
5 The company is a model enterprise in the region of low-carbon environmental protection, and energy saving and emission reduction in reduction.
6 Unique company culture, and the regular rotation of individual work position give full play to the potential of talents and provide strong vitality for the development of the company.
7 Our Service:
A. Customized and Standard Manufacturing Service
B. A variety of Manufacturing Process Integration
C. Quality and Delivery Time Guaranteed
D. Effective Communication Ability
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Company Culture
Our Vision
To become 1 of the leading companies
Our Mission
To become a platform for employees to realize their dream
To become 1 of the transforming and upgrading pacemaker of Chinese enterprises
To set the national brands with pride
Our Belief
Strive to build the company into an ideal platform for entrepreneurs to realize their self-worth and contribute to the society
Values
Improvement is innovation, everyone can innovate
innovation inspired and failures tolerated
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FAQ
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Q: Are you a trading company or a manufacturer?
A: Obviously we are a manufacturer of forging products, casting products and also have a high level of machining capabilities.
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Q: What series products do your have?
A: We are mainly engaged in forming processing of non-ferrous metals, including processing by casting , forging and machining. As you know, such machinery parts can be observed in various industries of equipment manufacturing.
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Q: Do you provide samples? is it free?
A: Yes, we commonly provide samples according to the traditional practice, but we also need customers to provide a freight pay-by-account number to show mutual sincerity of cooperation.
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Q: What is your minimum order quantity?
A: Yes, we require all international orders to have an minimum order quantity. The quantity is up to the exact products feature or property such as the material, weight, construction etc.
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Q: What is the lead time?
A: Generally our forging products and casting products need to make new dies or molds, the time of making new dies or molds and samples within 30-45 days, and the large batch production time within 30-45 days. it’s also according to the parts structural complexity and quantity.
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Q: What kinds of payment methods do you accept?
A: You can make the payment by T/T or L/C. 30% deposit in advance, 70% balance against the copy of B/L.
How to Choose the Right Worm Shaft
You might be curious to know how to choose the right Worm Shaft. In this article, you will learn about worm modules with the same pitch diameter, Double-thread worm gears, and Self-locking worm drive. Once you have chosen the proper Worm Shaft, you will find it easier to use the equipment in your home. There are many advantages to selecting the right Worm Shaft. Read on to learn more.
Concave shape
The concave shape of a worm’s shaft is an important characteristic for the design of a worm gearing. Worm gearings can be found in a wide range of shapes, and the basic profile parameters are available in professional and firm literature. These parameters are used in geometry calculations, and a selection of the right worm gearing for a particular application can be based on these requirements.
The thread profile of a worm is defined by the tangent to the axis of its main cylinder. The teeth are shaped in a straight line with a slightly concave shape along the sides. It resembles a helical gear, and the profile of the worm itself is straight. This type of gearing is often used when the number of teeth is greater than a certain limit.
The geometry of a worm gear depends on the type and manufacturer. In the earliest days, worms were made similar to simple screw threads, and could be chased on a lathe. During this time, the worm was often made with straight-sided tools to produce threads in the acme plane. Later, grinding techniques improved the thread finish and reduced distortions resulting from hardening.
When a worm gearing has multiple teeth, the pitch angle is a key parameter. A greater pitch angle increases efficiency. If you want to increase the pitch angle without increasing the number of teeth, you can replace a worm pair with a different number of thread starts. The helix angle must increase while the center distance remains constant. A higher pitch angle, however, is almost never used for power transmissions.
The minimum number of gear teeth depends on the angle of pressure at zero gearing correction. The diameter of the worm is d1, and is based on a known module value, mx or mn. Generally, larger values of m are assigned to larger modules. And a smaller number of teeth is called a low pitch angle. In case of a low pitch angle, spiral gearing is used. The pitch angle of the worm gear is smaller than 10 degrees.
Multiple-thread worms
Multi-thread worms can be divided into sets of one, two, or 4 threads. The ratio is determined by the number of threads on each set and the number of teeth on the apparatus. The most common worm thread counts are 1,2,4, and 6. To find out how many threads you have, count the start and end of each thread and divide by two. Using this method, you will get the correct thread count every time.
The tangent plane of a worm’s pitch profile changes as the worm moves lengthwise along the thread. The lead angle is greatest at the throat, and decreases on both sides. The curvature radius r” varies proportionally with the worm’s radius, or pitch angle at the considered point. Hence, the worm leads angle, r, is increased with decreased inclination and decreases with increasing inclination.
Multi-thread worms are characterized by a constant leverage between the gear surface and the worm threads. The ratio of worm-tooth surfaces to the worm’s length varies, which enables the wormgear to be adjusted in the same direction. To optimize the gear contact between the worm and gear, the tangent relationship between the 2 surfaces is optimal.
The efficiency of worm gear drives is largely dependent on the helix angle of the worm. Multiple thread worms can improve the efficiency of the worm gear drive by as much as 25 to 50% compared to single-thread worms. Worm gears are made of bronze, which reduces friction and heat on the worm’s teeth. A specialized machine can cut the worm gears for maximum efficiency.
Double-thread worm gears
In many different applications, worm gears are used to drive a worm wheel. These gears are unique in that the worm cannot be reversed by the power applied to the worm wheel. Because of their self-locking properties, they can be used to prevent reversing motion, although this is not a dependable function. Applications for worm gears include hoisting equipment, elevators, chain blocks, fishing reels, and automotive power steering. Because of their compact size, these gears are often used in applications with limited space.
Worm sets typically exhibit more wear than other types of gears, and this means that they require more limited contact patterns in new parts. Worm wheel teeth are concave, making it difficult to measure tooth thickness with pins, balls, and gear tooth calipers. To measure tooth thickness, however, you can measure backlash, a measurement of the spacing between teeth in a gear. Backlash can vary from 1 worm gear to another, so it is important to check the backlash at several points. If the backlash is different in 2 places, this indicates that the teeth may have different spacing.
Single-thread worm gears provide high speed reduction but lower efficiency. A multi-thread worm gear can provide high efficiency and high speed, but this comes with a trade-off in terms of horsepower. However, there are many other applications for worm gears. In addition to heavy-duty applications, they are often used in light-duty gearboxes for a variety of functions. When used in conjunction with double-thread worms, they allow for a substantial speed reduction in 1 step.
Stainless-steel worm gears can be used in damp environments. The worm gear is not susceptible to rust and is ideal for wet and damp environments. The worm wheel’s smooth surfaces make cleaning them easy. However, they do require lubricants. The most common lubricant for worm gears is mineral oil. This lubricant is designed to protect the worm drive.
Self-locking worm drive
A self-locking worm drive prevents the platform from moving backward when the motor stops. A dynamic self-locking worm drive is also possible but does not include a holding brake. This type of self-locking worm drive is not susceptible to vibrations, but may rattle if released. In addition, it may require an additional brake to keep the platform from moving. A positive brake may be necessary for safety.
A self-locking worm drive does not allow for the interchangeability of the driven and driving gears. This is unlike spur gear trains that allow both to interchange positions. In a self-locking worm drive, the driving gear is always engaged and the driven gear remains stationary. The drive mechanism locks automatically when the worm is operated in the wrong manner. Several sources of information on self-locking worm gears include the Machinery’s Handbook.
A self-locking worm drive is not difficult to build and has a great mechanical advantage. In fact, the output of a self-locking worm drive cannot be backdriven by the input shaft. DIYers can build a self-locking worm drive by modifying threaded rods and off-the-shelf gears. However, it is easier to make a ratchet and pawl mechanism, and is significantly less expensive. However, it is important to understand that you can only drive 1 worm at a time.
Another advantage of a self-locking worm drive is the fact that it is not possible to interchange the input and output shafts. This is a major benefit of using such a mechanism, as you can achieve high gear reduction without increasing the size of the gear box. If you’re thinking about buying a self-locking worm gear for a specific application, consider the following tips to make the right choice.
An enveloping worm gear set is best for applications requiring high accuracy and efficiency, and minimum backlash. Its teeth are shaped differently, and the worm’s threads are modified to increase surface contact. They are more expensive to manufacture than their single-start counterparts, but this type is best for applications where accuracy is crucial. The worm drive is also a great option for heavy trucks because of their large size and high-torque capacity.
