Heavy-Duty Mechanical Hanging Spring Scale (Fish Scale) | Industrial Weighing

The Heavy-Duty Mechanical Hanging Spring Scale, widely known across the oil patch as a "fish scale," is a versatile and highly durable weighing instrument designed for rugged industrial use. In active well pad operations, fabrication shops, and rigging yards, mechanics and riggers constantly need to verify the weight of heavy lifting shackles, small valve assemblies, and assorted hardware before initiating a lift. This portable hanging scale provides an immediate, highly accurate weight measurement without the need for delicate electronics or dead batteries.

Constructed with a heavy-gauge steel or brass housing, this scale is built to survive the relentless physical abuse of the rig floor. The internal mechanical spring mechanism is engineered for high-tension reliability, delivering consistent measurements even after repeated exposure to heavy shock loads. Because it operates purely on mechanical tension, it is inherently safe for use in wet, freezing, or hazardous environments where digital scales would quickly short out or fail.

Equipped with a heavy-duty forged steel suspension ring at the top and a thick, load-bearing hook at the bottom, it is easily hung from a shop crane, forklift mast, or rig floor tugger. Whether you are weighing buckets of pipe dope for inventory, verifying the tension on a light wireline pull, or checking the load weight of recertified iron, this industrial fish scale is a mandatory tool for safe and efficient operations.

Features & Benefits

• Battery-Free Reliability: The 100% mechanical spring mechanism requires zero power, ensuring the scale is always ready for use in freezing temperatures, heavy rain, or remote well sites.

• Heavy-Duty Construction: Housed in a rugged, impact-resistant casing designed to withstand drops, heavy vibrations, and the abrasive conditions of the oilfield.

• Forged Steel Hook & Ring: Features a high-strength top suspension ring and a heavy-duty bottom load hook for secure, slip-free rigging and lifting.

• High-Visibility Dual Scale: The deeply stamped or high-contrast printed faceplate displays measurements in both Pounds (lbs) and Kilograms (kg) for quick, easy reading.

• Instant, Portable Weighing: Compact enough to keep in a rig maintenance truck or doghouse, providing immediate load verification before critical lifting operations.

Specifications & Technical Details

Applications

The industrial fish scale is heavily utilized by riggers, field mechanics, and shop fabricators. It is commonly deployed to weigh small 1502 iron pups and valves prior to manual lifting, measure tension on light pulling operations, and weigh bulk consumables like rags and pipe dope for inventory management.

Quality Assurance

Manufactured to stringent industrial tooling standards for accuracy and structural integrity. The internal tension spring is heat-treated to prevent stretching or memory-loss over time, ensuring the scale remains highly accurate even after thousands of heavy weighing cycles. The outer casing and hooks are treated to resist rust and corrosion from crude oil and weather exposure.

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