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BST pneumatic hydraulic booster
BST pneumatic hydraulic booster
BST pneumatic hydraulic booster is a kind of air driven oil pressure expander, it is through increase its air pressure, so as to increase its oil pressure in twice or quadruple.

There are two models of this BST pneumatic hydraulic booster, like BST-2 and BST-4. They are matched with different size of air cylinder. Normally, BST-4 pneumatic hydraulic booster's supercharge ratio is 14, and BST-2 pneumatic hydraulic booster's supercharge ratio is 7. So BST-4 pneumatic hydraulic booster produces oil pressure is double of BST-2 pneumatic hydraulic booster.
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