brake drum 3721A/3721AX
Truck Gunite brake drum 3721A/AX, Widely popularly in USA and Canada market.
used in heavy duty vehicle or truck trailers for GUNITE & WEBB series.
also we have different versions and drawings for this drum 3600AX :common sand and coated sand
two kinds of casting crafts now.
exported large quantity along.
Material: Gray steel 250.
One of our high-technology new brake dum in high quality and precision machining crafts.also had exported to Russia market. high quality with cometitive price won best large qty saling miracle.
we also can do customized specially raw material brake drums so to improve the brake drum's strength and cracking resistance.compare to generally gray steel brake drum 3600A/AX ,have long time useful life. also won foreign customers' praise.we also can produce
We have an annual productive ability of 20000 tons of sand cast products
And an annual -5000 tons lost model processing assemble line which mainly produces several kinds of sand casting auto parts, casting, machining.
Also we can manufacture many kinds of car brake disc /rotor.
Also we can produce many automibile brake discs/rotors, brake drum. Wheel hub and hubs.
| Item |
standards |
Brake disc/drum |
| C |
3.1--3.4 |
3.3 |
| Si |
1.9--2.3 |
1.95 |
| Mn |
0.6--0.9 |
0.75 |
| P |
0.15 MAX |
0.1 |
| S |
0.12MAX |
0.08 |
1. Physical propertities
| Item |
standards |
Brake disc/drum |
| Tensile strength |
245 N/m MIN |
268 |
| Hardness HB |
187--241 HB |
230 |
| microstructure |
A 85% MIN+B5%MAX |
A 92% MIN
+B 4%MAX |
| Dynamic balance Disc |
260 g-cm MAX |
200 g-cm |
| Dynamic balance Drum |
1300 g-cm MAX |
500 g-cm |
Our advantage as below:
3.-Professional Manufacture ,high-volume environmental foundry electric stoves and foundry production line,output reach 5000 tons per month.
4.-Long Service Life and quality warrantee period & Low noise for brake discs.
5.strictly testing and ways for discs and drums dynamic balance.keep the products stable balance during driving.dynamic balance are all keep below 500g.
100% test brake discs' crucial dimension inspection and machining surface. 6.Material: casting Iron
7.Standard: HT-250 raw material G3000 standards.
9.Packing: Neutral or Color carton.poly woodpallet.
10..TS16949 and ISO 9002certificate;
11.many years of export experiance.familiar to many kinds of certifications and government CIQ regulation.many kinds of goverments and Customs documents meantime.
12.short lead time :20 days for a 20' container.
13. reasonalbe price and small quantity for first orders.. small quantity order acceptalbe ; MOQ at least 10--30pcs;
15. quality warrante period: 1 year or 100000 kliometers.
16.can accept drawing or sample supplying to design or explore new items brake discs or rotors.
Also brake drums too.
welcome enquiry and visit us.Baiwang series Car or truck brake discs and brake drums with more modes and more tems as our best advantage;
other relevant brake drums oe nos as below:
Audited Supplier 
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