KHT5500 hydraulic power tongs is the open power tongs which is applicable to make up or break out
2 3 / 8 "-3 1 / 2 " drill pipes, 3 1 / 2 "-4 1 / 2 " tubing and 4 1 / 2 "-5 1 / 2 " casing during oil field workover operation. And
three-jaw-plate clamping device is adopted in the master tong and back tongs. The device may ensure
minimum string damage. It has high operation efficiency and may reduce working intensity of the workers. It
can enhance screwing quality of the string and reduce string accidents caused by improper workover operation.
Characteristics:
1. The tong head is the open structure which is quick and convenient for entering and retreating working
position. The integral tong head has good hardness and rigidity;
2. The three-jaw-plate clamping device is adopted in the master tong and back tongs. The device may ensure
minimum string damage. The front two jaw plates of the master tong are in the swing structure and the
back jaw plate is the roller-climbing structure. The assembly and disassembly is very convenient. The
optimum tangent-diameter ratio design ensures reliable clamping and easy slope retreating. The back tong
is the three-jaw-plate structure pushed by hydraulic cylinder. The structure is simple and the clamping is
reliable;
3. Four-gear rotation is adopted for large speed regulation range.And the rated torque is large;
4. It has the braking mode with braking staple. The braking torque is large. The operation is simple. And it is
convenient for repair and replacement;
5. With the open large gear supporting structure, hardness and rigidity of open large gear is enhanced
considerably;
6. The shell is made of steel plate with high hardness. The overall hardness is good. Various jaw plates are
made with fine casting and forging process. It has beautiful appearance and high hardness;
7. Hydraulic torque indicator is provided. And installation interface of turning torque instrument is provided
for computerized management.
Chapter II Technical parameters