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Company ProfileShandong Joint-Winning Construction Machinery Co., Ltd.
By certification [File Integrity]
The track roller is one of the traveling mechanism (four kinds of rollers and track shoe assy) on the chassis of track type construction machinery. Its main function is to support the weight of excavator and bulldozer and make the track shoe assy move along the roller. It is also used to restrict track shoe assy and prevent lateral slippage. The track roller can be divided into single flange and double flange track roller.
The track roller is composed of roller body, roller shaft, shaft sleeve, sealing ring, end cover and other related parts.
Bulldozer track roller surface is generally yellow paint.
Material and technology
The roller body material of track roller is generally 50Mn, 40Mn2 or other materials. The main process is casting or forging, mechanical processing, and then heat treatment. The hardness of the roller surface after quenching should reach HRC45~52, so as to increase the wear resistance of the roller surface.
The machining precision of support roller shaft requires high, which generally need CNC machine tools. 40Mn2 is in the majority with the material of track roller, after processing, it also needed to carry out quenching heat treatment, hardness up to HRC42.
Problems and analysis
A. Roller body wear. It is attributed to unqualified steel or the hardness of the material during heat treatment is low and the wear resistance is insufficient;
B. Oil leakage. The roller shaft shall be keep rotating, the roller body needs to be lubricated. However, if the sealing ring is not qualified, it is easy to produce oil leakage. Therefore, it is easy to wear between the shaft and the shaft sleeve without lubrication, which makes the product unable to be used.
The reasons for oil leakage are as follows: 1 floating oil seal unqualified 2. Sleeve roundness is not enough 3. Shaft gloss is not enough 4. Gear oil is not up to standard 5. Machining dimensional tolerance .These problems will cause the track roller oil leakage.
Bulldozer single flange track roller also called bulldozer single flange bottom roller and bulldozer single flange lower roller is composition of two pieces of forged semi-roller and the roller body is welded by CO2 automatic welding.
Primary Competitive Advantages:
· Brand-name Parts
· Quality Approvals
· Experienced Staff
· Prompt Delivery
Advantages / Features
1. Through quench-tempering processes to guarantee excellent mechanical properties,high strength and superior wear resistence to bending and breakage.
2. Surface hardness HRC42 for reduced wear and longer life, adding value to your products further to your business by maximizing durability of your products.
3. Precise design, carefully manufactured for proper fix easy grousering heavy loaded capacity up to 50tons without compromising proper functioning of the excavators reliable quality, high cost performance,quality services.Our products,your best choice.
4. High-quality heat treatment guarantees high-quality hardening depth and improves wear resistance, good support structure prevents deformation.
5. High surface hardness,Standard process guarantees the service life of the copper sleeve.
We believe that quality, system, comprehensive, fast service is the basis for the development of the cause. Adhere to the "user first" principle, to build a good sales service system,
To provide customers with high quality pre-sale, sale and after-sales service.
We receive reputable customers feedback. We always prioritize our customers' demands and requests, response rapidly. And our mission is to deliver to our customers in a professional, fast and efficient manner. Our company is located inshandong its convenient transportation solutions enable us to quickly and effortlessly handle both small and large volumes of order.
We export our products to the global markets, such as Southeast Asia, the Middle East, Europe, North and South America,Australia, and Africa. They are recognized and accepted for our quality.
Our products can be customized,whcih are specifically designed, engineered and manufactured,some made by OEM requirements.Our factory can produce new products according to customers’ supplied technical drawings or samples.Our factory can provide various brands of excavator parts.
In this way, our products have continued to gain market acceptance and customer satisfaction over the past years.We are aiming to meet the personal demands of customers around the world.We can produce lots of models as your want.
Contact us, you will get what you want！
Q1: How long is the delivery time of track roller?
A: We have a large amount of stock in stock. We can deliver the goods as soon as possible.
Q2: Which mode of transportation is supported?
A: We own a comprehensive transportation system that supports shipping containers, rail containers and automobile transportation.
Q3: What is the nature of your company?
A: We are the manufacturer
Q4: Do you check all your goods before delivery?
A: Yes, we have 100% inspection before delivery.
Q5: What are your advantages?
A: Supply both Genuine and OEM parts.
Price are competitive;OEM parts can save you 20%~30%
Have stocks can send goods immediately.
Q: Why your price is so high?
A: You get what you pay for.
There is no winfall profits at all in the open market. We just insist resonable profits.
Q7: What is included in the prices of our goods?
A7: The prices of our goods include the following (1)The goods production cost (2) FOB China Port cost (3) Packing.
Q8: How can you guarantee the quality of our goods?
A8: On one hand, our factory has a large group of professional and experienced staffs, who are rich in controlling the goods quality. On the other hand, from roughed pieces, heat treatment ,machining, washing, assembling, painting, packing to shipping, the professional QC from our own company will take the supervision and inspection carefully ,and will feedback to you as soon as possible if any problem, so you do not need to worry about the goods quality.
Q9: Can you guarantee the security of payment?4/23/2013
A: In order to guarantee the security of payment, you can choose to use T/T deposit or irrevocable L/C payment,which are the most approved around the world.