Q-K2 CO₂ Cylinder Refill Service
What happens when a Q-K2 cylinder is empty?
For Q-K2 customers in mainland China, arrange a 4 L CO₂ cylinder refill with Qingchuan before sending an empty cylinder.

The short answer
Q-K2 uses 2 × 4L CO₂ cylinders: one in use and one kept as backup. When one is empty, contact Qingchuan to arrange a refill. The other cylinder can remain available for the machine. The service is CNY 398 per 4L cylinder, including the refill and both shipping legs. It currently applies to customers in mainland China and confirmed eligible cylinders.
How to apply
Contact Qingchuan first so the customer, equipment and cylinder can be checked before shipping arrangements are confirmed.
Contact Qingchuan
Start with the customer service team to request a refill.
Share the details
Provide the customer and Q-K2 equipment information.
Confirm eligibility
Confirm the cylinder and service applicability.
Confirm arrangements
Qingchuan confirms acceptance and shipping arrangements.
Return the empty cylinder
Send the empty cylinder back according to the confirmed arrangement.
Receive the refilled cylinder
After refilling, the cylinder is sent back to the customer.
One in use, one kept in reserve
Q-K2 is supplied with 2 × 4L CO₂ cylinders. A depleted cylinder is changed manually; the empty cylinder can then enter the refill process.
In use
One cylinder is connected to supply the machine.
Backup
The other cylinder is kept available as a replacement.
Manual change
When the connected cylinder is empty, change to the backup cylinder manually.
Service options
The following options are based on one 4 L CO₂ cylinder per refill service. Contact Qingchuan to confirm acceptance before arranging a refill.
Single refill
CNY 398 · one 4L cylinder · refill plus both shipping legs
5-use card
CNY 1880 · valid for one year after purchase · bound to the purchasing customer
10-use card
CNY 3580 · valid for one year after purchase · bound to the purchasing customer
Contact Qingchuan before shipping. Confirm the customer, equipment, cylinder eligibility and shipping arrangements; this page does not provide cylinder handling or transport instructions.
CO₂ supply and refill arrangements should be confirmed according to local project conditions and service availability.
Who this service applies to
The service is not an automatic arrangement for every cylinder. Qingchuan confirms the customer, equipment and cylinder before acceptance.
Mainland China
The service described on this page currently applies to customers in mainland China.
Q-K2 customers
The service is for customers using Q-K2 equipment.
Confirmed cylinders
The cylinder and service applicability must be confirmed before shipping.
Card refunds
Refill cards can be refunded. Please contact Qingchuan; the remaining uses and refund amount will be confirmed against the actual use record.
Customer-bound cards
A use card is bound to the purchasing customer. The same customer can use it for multiple Q-K2 machines under that customer account.
View the Q-K2 machine
Review the Q-K2 equipment, operating method and confirmed installation conditions.
Plan commercial sparkling water
Consider users, site conditions, CO₂ supply and replenishment as part of a commercial sparkling water setup.
Questions about CO₂ refills
Does CNY 398 cover one or two cylinders?
It covers one 4L CO₂ cylinder refill per service, including the refill and both shipping legs.
Does the service include shipping?
Yes. The CNY 398 service includes the refill and shipping for the empty cylinder to Qingchuan and the refilled cylinder back to the customer.
Do both cylinders need to be sent back?
Usually not. Q-K2 uses one cylinder in use and one as backup, so the other cylinder can remain available while the empty cylinder is arranged for refill.
How long are the 5-use and 10-use cards valid?
Both cards are valid for one year after purchase.
Can one customer use a card for multiple Q-K2 machines?
Yes. A card is bound to the purchasing customer and can be shared across multiple Q-K2 machines under that customer.
Can a use card be refunded?
Yes. Contact Qingchuan; the remaining uses and refund amount will be confirmed against the actual use record.
Can overseas customers send cylinders to China?
The refill service described on this page currently applies to customers in mainland China. CO₂ supply and refill arrangements should be confirmed according to local project conditions and service availability.
How do I apply for a refill?
Contact Qingchuan first. The team will confirm the customer, equipment, cylinder eligibility and subsequent arrangements.
Need to arrange a Q-K2 refill?
Share your Q-K2 and cylinder details with Qingchuan so the service applicability and shipping arrangements can be confirmed.