# Rigging Calculator: Crane Lift

> Capacity, Radius & Load Chart

Canonical page: [https://chrome-stats.com/d/id6761541697](https://chrome-stats.com/d/id6761541697)

## Overview

- **ID:** `id6761541697`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** Shanghai Sheyuan Network Technology Co., Ltd.
- **Category:** Utilities
- **Rating:** 1.00 / 5 (1 ratings)
- **Version:** 1.0.4
- **Last updated:** 2026-09-10
- **First published:** 2026-04-04
- **Size:** 971 KB
- **Data as of:** 2026-09-20
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/rigging-calculator-crane-lift/id6761541697)
- **Website:** [https://calcspec.com/app-privacy.html](https://calcspec.com/app-privacy.html)
- **Privacy policy:** [https://calcspec.com/app-privacy.html](https://calcspec.com/app-privacy.html)

## Description

Lifting on the iron - what is the rated capacity at 38 ft? 5 crane load charts on your phone, with critical-lift thresholds and load %. $4.99 one-time, no login.

Built for crane operators, riggers, and lift directors who need quick capacity verification on the iron - not a dashboard you log into.

WHAT IT DOES
Looks up rated capacity at any operating radius for 5 common crane configurations using built-in load chart data with linear interpolation. Compares total rigged load against rated capacity and flags critical-lift thresholds before the hook leaves the ground.

CRANES INCLUDED
- 30-ton Rough Terrain
- 50-ton Rough Terrain
- 80-ton Rough Terrain
- 130-ton Rough Terrain
- 200-ton Crawler

INPUTS
- Crane model (picker)
- Load weight (lb)
- Rigging weight (lb, default 500)
- Operating radius (ft)

RETURNS
- Rated capacity at the entered radius (tons)
- Total rigged load (lb and tons)
- Load as a percentage of rated capacity
- Critical-lift status: under 75% (green), 75-90% (yellow), 90-100% (orange), over capacity (red)
- Full load chart for the selected crane

WHY THIS APP, NOT THE FREE ONES
- Math is shown - every result lists the chart entry and the load ratio. No black box.
- Color-coded thresholds - see at a glance whether you are approaching critical-lift territory.
- Works offline - yard moves, refinery turnarounds, and remote sites. Always available.
- No login. No telemetry. No subscription.

PRICING
$4.99. Pay once, own it. Will not disappear when the company kills the SaaS budget. Lifetime access on iPhone and iPad via Family Sharing.

NOT A SUBSTITUTE FOR
The crane manufacturer's published load charts for your specific machine. The lift director's sign-off. A site-specific ground bearing capacity assessment. This app is a quick-reference tool, not a replacement for the official load chart taped to the cab.

## Rankings

- #978,262 — Overall

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Source: [Chrome-Stats](https://chrome-stats.com/d/id6761541697)