The miniature electric pump produced by our company is a kind of reliable structure, excellent performance, oil-free self-lubricating excellent pump, suitable for diesel automobile exhaust emission treatment system, hybrid automobile oil-electricity conversion system and sedan airbag lifting system, etc. The product adopts the piston reciprocating motion design, the piston ring is made of reliable and durable oil-free self-lubricating material, no maintenance. This product adopts the piston reciprocating motion design, the piston ring selects reliable and durable oil-free self-lubricating materials, without maintenance, the working environment temperature range is large, can meet the use of various working conditions.