I. Structure and principle

ZYNJ - Series hydraulic screw - on machine is designed as hydraulic, mechanical and electrical integrated combined type (the complete machine is a set of equipment), featuring handsome appearance, reliable performance and convenient operation. Four-gear or two-gear speed shifting mechanism for star clamping is adopted, which has big clamping range. It can perform self-centering of any clamped workpiece within the applicable diameter range, without need for replacement of slips. At the time of use, so long as it is filled up with hydraulic oil and connected with power supply, such screw - on machine can perform normal operation, without the necessity for complex pipeline and electric wire connections. This machine is mainly used for disassembly and assembly of some cylindrical threaded connection pieces such as casing coupling, tubing coupling, oil well pump coupling, packer adapter and downhole tools in oil field. It is controlled by manually operated valve. With various technical indexes taking the leading position in domestic like products, this machine is the up-to-date ideal product for the users of giant oil fields. (Patented product of our factory).

II. Main features

1. Integrated combination: Cancel the irrational structure in which multiple hoses and cables are used for cross connection of power source, operating console and main machine, featuring reasonable layout, compact structure and esthetic appearance.

2. Convenient installation: Can perform normal operation so long as it is connected with power supply and filled with hydraulic oil, featuring small area occupation and flexible movement.

3. Two control modes: namely manual control and brake control modes (user can purchase on selection of two modes according to actual requirement).

4. Reduce environmental pollution: Cancel the laying of multiple hoses along ground surface between three bodies, so as to avoid environmental pollution and economic loss due to oil leakage of hose broken workpiece.

5. Eliminate hidden danger: Cancel using multiple hoses and cables for mutual cross transition, so as to avoid the hidden danger for fire and personal injury caused by hose broken by workpiece and short circuit of cable.

6. Improve working efficiency: Thanks to compact structure, the manipulator can operate nearby, so that only a person is needed to realize a series of works including operation, putting into gear, pressure regulation and observation.

 III. Technical parameters