Hydraulic drawworks consists of roller, wire line system, depth metering device, handle panel, hand device, etc. It has simple frame and is convenient to operate.

液压绞车首要由滚筒、排缆系统、计深装配、操作面板、手摇装配等构成，该设备具有布局简单，操作容易等特性。

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All Stenner metering pumps have a 3-point roller design in the pump head, which ACTS as a check valve to prevent back flow, siphoning, overdosing and loss of prime.

泵头有3点滚筒设计，设备可作为止回阀阻止回流，虹吸，过量用药和避免大量的材料损失等。

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