GD-3000 geophysical well logging winch/ geophysical borehole winch/ automatic winch
They are special equipments designed for the requirements of borehole measurement in the field. They can be used to lift or lower down well measurement probe tube; they have the functions of automatic/manual, constant speed control, fixed points/continuous measurement, automatic depth modification, and alarm for suddenly depth change. They are in accord with the requirements stipulated in the Industry Standard of People's Republic of China DZ/T 0196.8-1997 "Well Measurement Winch and Controller". They are suitable for borehole measurement in geology, metallurgy, coal mining field, oil field, and engineering project, especially for well measurement in deep borehole.

I. Main technical specification and parameters
1. JC-3000 Automatic Cable Winding Winch
(1) Speed range: 0~30 meter/minute;
(2) Depth range: 0~3000 meters;
(3) Controlling mode: Used together with JCK-1 Automatic Winch Controller;
(4) Working temperature: -10~70 ℃;
(5) Power supply: AC 220V±10%, 50 Hz;
(6) Motor power: 2500 W;
(7) Net weight: 110 kg (without cable);
(8) Size: 700 mm×550 mm×700 mm (Length ×Width ×Height);
2. JCK-1 Automatic Winch Controller
(1) Speed range: 0~30 meter/minute; Automatic/Manual total two controlling modes;
(2) Constant speed range: 0.5~20 meter/minute, error is ±5%;
(3) Depth range: 0~2999.99 meters, error ≤±0.4%;
(4) Controlling mode: Automatic, manual, and check;
(5) Controlling direction: Up, and down;
(6) Measurement mode: fixed point measurement, and continuous measurement;
(7) Working temperature: -10~55 ℃;
(8) Power supply: AC 220V±10%, 50 Hz;

II. Instrument characteristics
1. They have functions of automatic/manual, constant speed controlling, fixed point measurement/continuous measurement, and depth modification (depth correction).
2. It is highly automatic; the constant speed controlling performance can meet the requirements of grade A of the standard DZ/T 0196.8-1997;
3. It can automatically stop when the power is cut off and it also can automatically stop when the speed is abnormal or suddenly changes for operation safety.
4. LCD display, humanization operation, and comprehensive information in real time;