Hitachi Excavator sprocket E325 E320 E330 EX55 EX70 EX100 for excavator Track sprocket

Hitachi Excavator sprocket E325 E320 E330 EX55 EX70 EX100 for excavator Track sprocket 

Product Parameters

Forging Process and Methods for Excavator Drive Wheels

1. Material Selection

• High-Quality Steel: Choose high-strength, wear-resistant alloy steel as the forging material to ensure durability and load-bearing capacity.

• Material Pre-Treatment: Perform rust removal, cutting, and preheating to bring the steel to a suitable forging temperature.

2. Heating

• Uniform Heating: Heat the steel in a furnace to approximately 1200°C, ensuring even heating throughout the material.

• Temperature Control: Use thermocouples to monitor temperature, avoiding overheating or insufficient heating.

3. Forging

• Initial Forming: Use a hydraulic hammer or forging press to shape the heated steel into the basic form of the drive wheel.

• Precision Forging: Refine the drive wheel's structure through repeated forging and die forming, ensuring dimensional accuracy and surface finish.

• Controlled Cooling: After forging, place the drive wheel in a slow-cooling pit or use temperature-controlled equipment to prevent internal stress concentration.

4. Heat Treatment

• Quenching: Heat the drive wheel to a critical temperature and then rapidly cool it to increase hardness and strength.

• Tempering: Perform tempering after quenching to reduce brittleness and improve toughness, ensuring comprehensive performance.

5. Machining

• Turning and Drilling: Use lathes and drilling machines for precision machining to ensure the accuracy of mounting holes and contact surfaces.

• Surface Treatment: Polish or shot-blast the drive wheel to improve surface quality and enhance fatigue resistance.

6. Quality Inspection

• Dimensional Inspection: Use measuring tools to check if the drive wheel's dimensions meet design requirements.

• Non-Destructive Testing: Conduct ultrasonic or magnetic particle testing to detect internal cracks or defects.

• Hardness Testing: Use a hardness tester to ensure the drive wheel meets the required hardness standards.

Maintenance and Repair Methods for Excavator Drive Wheels

1. Daily Inspection

• Check Tire Pressure: Ensure tire pressure meets the manufacturer's recommended standards, avoiding over or under-inflation.

• Inspect Tire Wear: Regularly check tire wear and replace severely worn tires promptly.

• Check Bolt Tightness: Ensure drive wheel bolts are tight to prevent loosening.

2. Cleaning

• Remove Debris: Regularly clear mud, stones, and other debris from tires to prevent damage.

• Wash Tires: Use water and a soft brush to clean tires, avoiding corrosive cleaners.

3. Lubrication

• Lubricate Bearings: Regularly grease drive wheel bearings to ensure smooth operation.

• Check Lubrication System: Ensure the lubrication system is functioning properly and replenish or replace grease as needed.

Maintenance and upkeep

To ensure the normal operation of the chain wheel rim and extend its service life, it is recommended to regularly perform the following maintenance and upkeep:

Regular inspection: Check the wear of the chain wheel rim and replace severely worn components in a timely manner.

Lubrication and maintenance: Regularly add lubricating grease to the bearings to ensure smooth rotation of the wheel rim.

Cleaning: Timely clean the dirt, gravel, and other debris on the rim of the supporting chain to prevent them from entering the interior of the bearing and causing damage.

Check the installation bracket: Regularly inspect the installation bracket of the chain wheel flange to ensure that it is firmly fixed and prevent equipment failure caused by looseness.

Structure and Composition

Wheel body: The main body of the driving wheel, usually cast or forged from high-strength alloy steel, with high wear resistance and impact resistance.

Ring gear: The outer part of the wheel body has a toothed structure, which is used to mesh with the track plate and transmit power. The design of the ring gear directly affects the service life and transmission efficiency of the driving wheel.

Bearings and seals: The drive wheel is equipped with bearings inside to ensure smooth rotation of the wheel body. Seals are used to prevent dust, dirt, and other impurities from entering the interior of bearings, extending their service life.

Installation hole: The drive wheel is connected to the excavator's walking motor or reducer through the installation hole to ensure the stability of power transmission.

Our advantages

1.Strong part number database.
If you can provide the right model and part number, we can supply the right product.
2.Professional and experienced salesperson.
Our founder has been into this field for more than 7 years, with rich experiences.
3.Strict and complete company rules.
We will try our best to meet customer’s delivery time. Before delivery, we must verify the part number or pictures of products one by one, to make sure that customers can receive high-quality and right-quantity goods.
4.Good management system.
No matter how big or small order, as long as customers place the order, we will provide exporting service free for charge.
5.Good service attitude.
If the customer has any questions about the product, In our receiving and knowing the situation, we will help the customer to solve the problem in the first place. As long as customers’ requirements are reasonable, we will endeavour to make them satisfied.

Selection and maintenance

Selection: Choose the appropriate support wheel based on the excavator model, working environment, etc.

Maintenance: Regularly check for wear and tear, replace damaged parts in a timely manner, and perform lubrication and maintenance as required.

FAQ:

1. What is the warranty time of the products?
The warranty time is 6/12 months based on the item details; We don't provide warranty time for original and used products.
2.What is your delivery time?
Generally, we will arrange the goods within 24 hours after your payment; if not in stock, stocking time is 1-7 days.
3..How can I do if there is something wrong with the goods?
First at all, we have confidence in the quality of our products, if you really found something wrong, please provide pictures or video for us and we will check. After it is confirmed, please return the goods to us and we will offer the correct item.
4.How do I pay?
You can pay by T/T,PayPal (for small amount) and Alibaba trade assurance.