1. Q: Which pump should we choose?

A: To recommend the most suitable model, please tell us:

- Material: composition, max aggregate size

- Capacity (-m3/h) :

- Delivery distance (horizontally / vertically):

- Grouting pressure:

- Driven type: electric motor, diesel engine, pneumatic motor

2. Q: What is the vulnerable part? How many spares should we prepare?

A: After long-time running, the rubber piston and cylinder sleeve may get worn. We will offer some spares for free.

Referring to the service life of each part, we will put a rough estimate of requested spares according to your project scale.

3. Q: Can we have customized model?

A: Yes. Customized production and OEM production are available according to your actual requirements.

4. Q: Do i need technical skills to operate this machine?

A: Yes. Please read the Operation Instruction for some basic technical skills before operating this machine, and contact us if any operation procedure is unclear.

5. Q: What should we do if there are some problems with the machine?

A: The Operate Instruction will help with routine maintenance and common problems.

Also, you can contact us for technical instruction by email, instant messenger or live video etc.

6. Q: What is the lead time? 

A: 1 week for sample model, 2~3 weeks for customized model. It depends for mass production.

7. Q: How about the package? 

A: The machine will be wrapped by plastic film and packed by fumigation-free wooden case along with spare parts.

8. Q: How to place an order?

A: Both online order and offline order are acceptable.

It is suggested to place online order with a Trade Assurance to get full protection for first order.

9. Q :How to pay for this order? 

A: Generally, TT, 30% deposit 70% before shipment;

   L/C at sight (high bank charge, not suggest, but acceptable);

   100% TT in advance (especially for small amount and spare parts etc.)

Henan Coal Scientific Research Institute Co., Ltd. was established in March 1979. In 1999, it was ranked among the first batch of 242 coal research institutes, and implemented localized management by Henan Province. In 2006, it was transformed successfully into a scientific and technological enterprise, and renamed officially as Henan Coal Scientific Research Institute Co., Ltd.

Tel: 0371-63844654/67836512

Fax: 0371-63930764

Mobile: +86 18236882465 (Whatsapp/Wechat)

Skype: zhang-angela

QQ: 2561389251

Email: angela_zhang @

           zhangting097 @

Mining Tunnel Cement Grout Injection Pump for Waterproofing