1.Capstan well
    The principle of mechanical balance counterweight is adopted, i.e. the balance between the shaft body and counterweight, so as to realize the lifting and closing of the shaft. The operation is easy, simple, convenient and safe without external power assistance such as motor drive, boost spring, air support, etc. No broken movies, no maintenance.
    It is suitable for the occasion with few load-bearing contents and space requirements.
2.Main body selection

3.Component options
· Emergency stop switch;
· Hydraulic detection self control drainage system;
· Manhole cover;
· Fire alarm system;
· Explosion proof lighting system;
· Drying and dehumidification system;
· Well cover heating system;
· Power frequency, intermediate frequency, DC and weak current explosion-proof junction box (IP67);
· Cable (pipe) splitting mechanism;
· Cable storage basket;
 
4.Configuration option
·380V / 220V / 36V, 50Hz industrial socket;
· 1-4 sets of if or DC aircraft power supply cables (length ≤ 18m);
· 1-2 sets of ￠ 200 air conditioning pipes (length ≤ 18m);
· Hydraulic pipeline (select according to parameters);
· Airtight pipe and interface (select according to parameters);
· Water / blue water / sewage pipe;
.  Others: compressed air, network, optical fiber, electrostatic grounding, dust removal, superior energy unit (power supply, air conditioning, hydraulic) display and control panel, etc.
.  Note: the component and configuration selection shall be completed by our company's technical engineer together with you.

5.Application type