1. Whether there is a consumption limit for swiping a card with the one-card pos machine of China Merchants Bank is determined by two factors: the specific limit of the pos transaction channel of your bank card and the balance of your bank card, and the final credit limit of the POS machine is subject to the smaller of the above two decisive factors.

2. Under normal circumstances, China Merchants Bank opens a one-card pos transaction channel by default, and there is no limit. At this time, you can swipe your card through the pos machine.

3. If you set the limit of the transaction channel of the pos machine, then the maximum amount you can swipe your card through the pos machine is equal to the limit you set.

Extended data:

There are two ways to set the limit of one-card POS machine in China Merchants Bank. One way is that I take my ID card and bank card to the counter of bank outlets to set up or modify them. This way requires me to go to the counter myself, which is not convenient.

One is to modify it through the client of China Merchants Bank Personal Banking Professional Edition, just install the client on the computer and log in, which is convenient and fast. It is suggested to use the second method to set the limit of pos machines.

You can't cash out with a pos machine. Cashing cash with POS machines is essentially cheating banks. The criminal suspect changed the consumer credit function of the credit card to cash loan without authorization, which made it impossible for the card issuer to judge the normal credit status of the cardholder and the use of credit card funds.