Product Details

A BRAKE DRUM is a brake that uses friction caused by a set of shoes or pads that press outward against a rotating cylinder-shaped part called a brake drum.

The term TRAILER BRAKE DRUM usually means a brake in which shoes press on the inner surface of the drum. When shoes press on the outside of the drum, it is usually called a clasp brake. Where the drum is pinched between two shoes, similar to a conventional disc brake, it is sometimes called a pinch drum brake, though such brakes are relatively rare. A related type called a band brake uses a flexible belt or "band" wrapping around the outside of a drum.

The TRUCK BRAKE DRUM is generally made of a special type of cast iron that is heat-conductive and wear-resistant. It rotates with the wheel and axle. When a driver applies the brakes, the lining pushes radially against the inner surface of the drum, and the ensuing friction slows or stops rotation of the wheel and axle, and thus the vehicle. This friction generates substantial heat.

Components

Drum brake components include the backing plate, brake drum, shoe, wheel cylinder, and various springs and pins.

More Details

Proces	Precoated sand casting / lost foam casting
Material	steel ZG-45,Ductile iron QT-400 QT-500 QT-600 Gray iron HT250 HT300
Material Grade	GB, ASTM , AISI , DIN , BS, JIS, NF
Weight	1kgs~200kgs
Accuracy	class CT4~CT7
Surface Roughness	up to Ra1.6~Ra6.3
Applied software	ProE (.igs , .stp) , Auto CAD , PDF, Jpeg, Jpg, Png
Production capacity	2000 ton per year
Heat Treatment	anneal,quenching,normalizing,carburizing, polishing, plating, painting
Machining Equipment	CNC center , CNC machines, turning machines, drilling machines , milling machines, grinding machines
Measuring Tool	CMM , vernier caliper, depth caliper, micrometer, pin gauge, thread gauge , height gauge
QC system	100% inspection before shipment
Lead Time	sample fast ,stock products within 5 days,new products according to actual order quantity.
Certification	ISO9001 TS16949
Payment Terms	T/T , L/C, WEST UNION
Shipment Terms	FOB , CFR, CIF

Xingtai Bossa Machinery Manufacturing Co., Ltd is a group company that specialized in research, manufacture, sales and service .
Company Information

It is very famous in north of China and locat in Xingtai Hightech
Development Zone, Hebei province ,China.
Our Own Factory is specialized in casting product.
FOR EUROPEAN TRUCK, JAPANESE TRUCK, American Truck
According to the drawings to processed. products.
Our leading product: Brake Drum, Brake Shoes, Wheel Hub, Gearbox Covering, Leaf spring bracket,ect.
30% our products according to cuationer's drawing or samples.

Casting: Automatic production line including sand mixing, moulding and pouring
Machining: CNC machining center
Inspection: Advance test equipment including CMM, tensile strength testing machine, hardness tester, spectrometer, parallel tester, etc.
Every detail contributes to our products of consistent quality and excellent performance
Below are part of the brake drums we supply, for more information please feel free to contact us.

Packing and Delivery

Certification

FAQ

1.Can you do machining in house? Rough machining or final machining?
Yes, we could do machining, both rough and final machining.

2.Casting technology of our products?
Sand casting, Die casting, Pressure casting, Lost foam casting.

3.Most used pattern tech?
Lost foam casting.

4.Is it possible to do painting?
Yes, painting by ourself.

5. What are the key raw material used in your foundry?
Casting iron, steel , Aluminum raw material etc

6.What is it the range of unit weight your production facilities currently handles?
Min: 1KG Max:7000kg

7.Furnace type?
Electric

8.What is it the range of sand box dimensions that your production can handle?
Lengh:22000mm*Thickness:10000mm*Height:15000mm

9.Max production capacity per year in ton? Actual annual production in last year?
Max production 30000 tons, 26000 tons in last year.

10. Raw material of Iron used?
Grey cast iron, Ductile cast iron, Vermicular cast iron

11.All the processes are produced by yourself?
Yes, From moulds development, lost foam casting production, painting to final machining parts, all the process are produced by ourself.

12.How could you guarantee the products quality?
Pls look at our QUALITY MANAGEMENT SYSTEM, all the process will be passed our technical test. 100% qualified products can leave our factory.

13.How about your after sales service?
24 hours service by our professional sales man, any question you could ask us through alibaba or by email.

14. Is it competitive for your price?
Yes, Our price is very competitive in north of China. Such as, labor cost, (Xingtai is a small city, for our labor cost is cheap than the big cities.)

15. Can you arrange the goods timely ?
With advanced equipment in production and laboratory tes, We bossa could timely

Why Choose BOSSA ?

1. Rich experience and resources of various manufactures
     Our foreign trade sales team members have more than 10 years working experience.
     Our company has enormous resources of various manufacturers and distributors.
     And we can meet customers' various needs in quality,quantity,price and delivery time etc.

2. Excellent service before purchasing
     According to clients' circumstances, we will recommend most suitable parts for them.
     Our company has enormous resources of various manufacturers and distributors.
     Professional service and positive feedback.

3. Competitive price and guaranteed quality
      Competitive and reasonable price to help customers to win markets, reliable supplier
      and stable quality guarantee.