The function of the brake chamber is to change the pressure of the compressed air into the mechanical force that makes the brake camshaft rotate, so as to realize the braking action. The brake chamber is clamp clamp diaphragm type. The front and rear brake chambers are different in size, but their structure is basically the same.
When the car braking, air from the air inlet into the brake chamber, under the action of air pressure to make the diaphragm deformation, promote the push rod, and drive the brake Adjusting Arm, rotation of the brake CAM, brake shoe friction disc pressure to the Brake Drum and brake.
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  The Silica Sol process is used to cast complex high quality parts with requirements of a very good surface finish and close dimensional tolerances.Â
This process can range from a weight of just a few ounces to approximately 80 pounds. If you are concerned with precision in very small parts, we are especially proficient at very fine detail work including teeth and serrations.
  The water glass process is typical of the process in the early stages of investment castings. It generally is capable of much larger castings than the Silica Sol process, but does not have as good of surface finish or tolerances. The water glass process provides parts that have better surface finish and dimensional tolerances than sand castings.
This process may range in weight from several ounces to approximately 200 pounds.
We have the capacity to provide OEM, ODM service. We can provide casting, machining, heat treatment, surface treatment service according to your drawings, ideas or samples.
Material
Production process
Machining equipment
Production 
Our service:
1. 20 years of manufacturing success in China and exporting experience worldwide 2.Global specialized producer of machined castings. 3. We combine our own resources with some other well-developed factories to fulfill a wide range of contract manufacturing capabilities. Working with one source, saves time and money. 4. Satisfied supplier of 7 big companies from North America and Europe. 5. Low cost mold materials and focus on efficiency offer a cost effective solution to your metal component purchasing requirements. 6. Normal lead times range from 1 to 6 weeks for fully-machined components. 7. Strong capacity to help customers develop new projects. 8. Our sales department is 24 hours available in order to help our customers solve problems quickly.
FAQ:
1. Can we get the samples?
Yes, we can supply you the samples for checking our quality within 10-30 days.
2. Can we place a trial order first time?
Yes, we are glad to supply you small trial order, and hope your quantity will be big in future.
3. Can you help us to do the customs clearance of import?
Yes, we can help you to do the customs clearance.
4. What is your lead-time?
With our design, fabrication and manufacturing skills and experience, we can efficiently exceed your expectations and meet the time frame required. However, we guarantee that quality and service are never compromised.
Customers:
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I am very familiar with the foreign trade process, and have provided good support for foreign trade companies in logistics, port transportation, packaging and other aspects, ensuring the safety, perfection and convenience of goods inventory.
Price advantage is obvious, our company will provide preferential prices, reliable product quality, so that dealers and company customers are satisfied.
Delivery time: depends on order quantity and time. Specific efforts made to meet customer requirements.
Terms of payment: cash on delivery. Or you can pay part of the deposit and the balance before delivery.
Surface Roughness: Ra0.8
Machining Tolerance: +/-0.01mm
Standard: ASTM
Certification: CE, RoHS, ISO 9001:2008
Deliver Time: 25-35 Days
Trademark: ODM
Transport Package: Bubble Bag, Carton, Pallets or Wooden Box
Specification: OEM
Origin: China
Two types of investment cast processes: Silica Sol process and the water glass process.Â