Industrial-Grade Pull Force Calculator
Calculate mechanical advantage, required falls, and hand-chain pull force for manual hoists instantly. Built for riggers, millwrights, and warehouse professionals who demand precision in critical lifting operations.
Download Chain StrikeChoose your rigging configuration starter package
All configuration codes valid for new installations. Professional use requires understanding of rigging safety standards.
Chain Strike functions as a field-ready computational tool that applies mechanical advantage principles to real-world rigging scenarios. When you input a load weight, the system calculates the exact pull force required on the hand chain by analyzing the number of supporting rope lines, hoist efficiency ratings, and friction losses through the pulley system.
The visual rigging diagram updates in real time, displaying a schematic representation of your block and tackle configuration. Each fall is rendered as a vertical line connecting the fixed anchor point to the load hook, with circular pulley representations at the bottom. This immediate visual feedback helps you understand how increasing falls reduces required pull force through mechanical advantage multiplication.
Safety warnings trigger automatically when your working load approaches the Working Load Limit threshold or when calculated hand-chain pull exceeds ergonomic operator limits. The amber caution alerts appear at ninety percent of rated capacity, while red critical warnings activate when thresholds are exceeded, preventing dangerous rigging configurations before they reach the shop floor.
Compute exact hand-chain pull requirements instantly as you adjust load values or change falls configuration, with mechanical advantage ratios displayed alongside results.
See your block and tackle setup rendered as a technical schematic with adjustable falls count, helping you visualize rope paths and pulley arrangements before rigging the actual lift.
Receive amber caution warnings when loads approach Working Load Limits and red critical alerts when pull forces exceed safe operator thresholds, preventing equipment overload.
Save frequently-used rigging configurations with custom names and notes, then recall them instantly for repetitive lifts like motor swaps or press bed removals in your facility.
Access built-in specifications for Grade 80 and Grade 100 chains, manual hoist capacities, and wire rope ratings without leaving the app or searching through paper charts.
Compare two different rigging approaches simultaneously with horizontal bar charts showing pull force differences, helping you select the most efficient configuration for any lift.
Chain Strike was engineered by Qifokibojig specifically for trades professionals working with manual lifting equipment. The calculator algorithms incorporate industry-standard efficiency curves and safety factors derived from ASME B30 rigging standards, ensuring calculation accuracy for critical lifting operations.
Android 5.0+ | 8.2 MB | Installs in under 30 seconds
Download Chain StrikeFree download with full offline functionality. No network connection required after installation.