WZHLCX Hand Drill Oil Transfer Pump — 8mm Shaft, Trochoid & Triangle 2.5 ml/rev

The WZHLCX Hand Drill Oil Pump is a compact, drill-driven oil transfer tool that extracts and dispenses engine, gear, and hydraulic oils using durable trochoid and triangle pump mechanisms.

This versatile pump converts an electric drill or wrench into a reliable oil transfer station for workshops and home garages. Built to handle viscous lubricants rather than water, it pairs a small footprint with robust internals to move oil efficiently — supporting extraction, filling, and fluid replacement tasks across automotive and industrial equipment. The unit is lightweight, easy to mount, and supplied with a 2 m hose and a direct 8 mm shaft that accepts common drills; the shaft can be swapped for a hex screw to use an electric wrench.

How does the pump move oil and what are its performance figures?

Two positive-displacement designs — trochoid and triangle rotor types — provide steady, low-pulse flow suited to lubricants. The theoretical displacement is 2.5 ml per revolution; at 1500 rpm the pump yields about 3.7 L/min and generates a suction up to 0.1 MPa, allowing vertical lift up to roughly 2.5 meters.

• Dual pump mechanisms for reliable, low-pulse flow
• 2.5 ml per revolution displacement for predictable dosing
• ~3.7 L/min output at 1500 rpm for faster transfers
• 0.1 MPa suction and 2.5 m vertical lift for deep-sump reach

What fluids can it handle and what should I avoid?

The unit is optimized for oils and other fluids with measurable viscosity — engine oils, gear oils, and hydraulic fluids — where internal clearances and rotor geometry maintain performance. It is not recommended for clean water or very low-viscosity liquids; pumping thinner fluids will reduce efficiency and may compromise sealing.

• Designed for oil-based lubricants and hydraulic fluids
• Not suitable for clean water or very thin solvents
• Works best with fluids that provide a film for rotor sealing

How do I connect and operate the pump with power tools?

The pump ships with a 2 m, 13 mm ID hose and an 8 mm straight shaft that fits most electric drills. For quicker, high-torque operation you can swap the shaft to a hex screw to run the pump with an electric wrench; control speed by adjusting drill RPM to match recommended ranges for flow and suction.

• Includes 2 m x 13 mm inner diameter hose to reach tanks
• 8 mm shaft is drill-ready; replaceable with hex for wrenches
• Control flow with drill speed; avoid sustained maximum RPM for longevity

What are the build, size, and maintenance points I should know?

The pump weighs approximately 0.6 kg (without hoses) and is compact for easy storage and transport. Robust construction and straightforward internals make routine cleaning and occasional seal checks simple; keep abrasive particulates out of the supply to preserve rotor life and sealing performance.

• Compact, transportable 0.6 kg unit (excl. pipes)
• Sturdy housing and accessible internals for maintenance
• Avoid particulate contamination; use strainers if necessary

Who is this for: The WZHLCX Hand Drill Oil Pump is aimed at DIY mechanics, small repair shops, fleet technicians, and maintenance teams who need a portable, cost-effective way to extract and refill engine oil, gear oil, or hydraulic fluid. It suits users who already have an electric drill or wrench and want predictable, tool-driven oil transfer without large, fixed pumping systems.