In 2009, ten non-ferrous metal products output more than 1 million tons of the 10 provinces, of which more than double-digit growth in the provinces of Hunan, Anhui and Guangxi. The top 5 provinces and regions have a total output of 12.712 million tons, accounting for 48.80% of the total output of non-ferrous metals; the top 5 provinces in copper production have a total output of 2,636,300 tons, accounting for 64.15% of the country's total output, of which Jiangxi It accounted for 19.86%; the top 5 provinces in the production of aluminum produced a total of 7,807,200 tons, accounting for 60.78% of the country's total output, of which Henan Province accounted for 24.52% of the country's total aluminum production; lead production ranked the top 5 The total output of the provinces reached 2.934 million tons, accounting for 79.19% of the national total output, of which Henan Province accounted for 32.14% of the total lead production in the country; the top 5 provinces in terms of zinc production totaled 2.868 million tons, accounting for the national total output. 65.84%; the top 5 provinces in the production of alumina production totaled 2,537.61 million tons, accounting for 99.09% of the country's total output, of which only Henan's alumina production accounted for 35.73% of the country's total output; copper production ranked top 5 The province's total output reached 6,827,300 tons, accounting for 76.85% of the country's total output; the top 5 provinces in aluminum production totaled 115,060 tons, accounting for 69.72% of the country's total aluminum production, of which only Guangdong and Henan Yield It can be seen that the regional concentration of China's non-ferrous metal products is relatively obvious.

Chart 1 Production of major non-ferrous metals products in the fourth quarter of 2009 Unit: 10,000 tons, %


Chart 2 The top five provinces with non-ferrous metal products in the fourth quarter of 2009 Unit: ton, %

Heavy Duty Live Centers

1.material:mandrel use bearing stell GCr15

2. hardness: HRC58-60,high rigidity and high durability

3. precision≤5μ,high speed 12000rpm

4. Live center adopts precision matched angular contact bearing and integration with roller bearing,ensure high concentric precision.

5. Sealing ring at the fron end is dust proof and water proof,can avoid coolant influene the bearing,prolong the life of the live center.


Product introduction


Heavy Duty Live Centers, machine tool parts in machining. Tail with a taper shank, installed in the machine tool spindle taper or tailstock shaft hole, with its head against the workpiece cone. Can be used to face the complex parts and do not allow the central hole of the supporting parts. The top is mainly composed of a thimble, a clamping device, a shell, a fixed pin, a bearing and a core shaft. Thimble is the top of the inner hole of the center hole or pipe material, on the other end can be top end is a spherical or conical parts, thimble by the clamping device fixed. When the parts are not allowed or can not hit the central hole, the use of the clamping device to clamp the turning. The shell and the core shaft drill with pin hole, removing of the fixed pin pin or, to achieve the top two. Top can also be used for the work of the drilling, casing and hinge hole.

Live Centers

Heavy Duty Live Center,Spindle-Type Live Centers,Precision Live Center,CNC Vertical Turning Center

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