---
title: "Blast Hole Pattern & Charge - Reviews, Revenue and Downloads in Denmark | Apple App Store"
description: "Wrong burden or spacing means flyrock, poor fragmentation, or wasted explosive. This calculator designs safe, efficient blast patterns based on hole diameter, rock type, and bench geometry.  Enter hol"
---

# Blast Hole Pattern & Charge — Denmark
> Burden Spacing Powder Factor

![Blast Hole Pattern & Charge App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple221/v4/91/9b/51/919b51f4-0727-acbf-7021-b284220cab83/AppIcon-0-0-1x_U007epad-0-1-85-220.png/434x0w.png)

**Developer:** [Shanghai Sheyuan Network Technology Co](https://apptail.io/developer/shanghai-sheyuan-network-technology-co-mkXe)
**Category:** Utilities
**Rating:** N/A (0 ratings)
**Price:** 39.00 r
**Bundle ID:** com.sy.blastholepattern
**Store:** Apple App Store
**Country:** Denmark
**Version:** 1.2 (released 2026-06-27)
**Original Release:** 2026-04-07
**Languages:** English

**App Store Link:** [Download on Apple App Store](https://apps.apple.com/dk/app/app/id6761641301)
**AppTail Page:** [https://apptail.io/app/blast-hole-pattern-charge-pfuz/denmark](https://apptail.io/app/blast-hole-pattern-charge-pfuz/denmark)

## Blast Hole Pattern & Charge Description
Wrong burden or spacing means flyrock, poor fragmentation, or wasted explosive. This calculator designs safe, efficient blast patterns based on hole diameter, rock type, and bench geometry.

Enter hole diameter, depth, bench height, face width, subdrill, stemming, rock hardness (soft to very hard), and pattern type (rectangular, staggered, triangular). Calculates burden, spacing, total holes, rows and holes per row, powder factor, charge per hole, total charge weight, and total drill footage.

Rock hardness presets for limestone, shale, sandstone, slate, granite, basalt, and quartzite with industry-standard burden multipliers. Shows powder factor with safety threshold warning.

KEY FEATURES:
- Three pattern types with layout preview
- Powder factor calculation and warning
- Subdrill and stemming sizing
- Total drill footage estimate
- Works completely offline

Built for drill and blast engineers, quarry operators, and mining contractors.

## Blast Hole Pattern & Charge Screenshots
- [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/26/93/e0/2693e098-7994-9f7f-d164-23decaafa8d4/screenshot_iphone_1.jpg/1284x2778.png)
- [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/18/84/56/18845680-e26f-758f-eb58-6022f566d6d5/screenshot_iphone_2.jpg/1284x2778.png)
- [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/ec/0f/12/ec0f1280-c1fa-1a1a-76a9-3b44104a0a32/screenshot_iphone_3.jpg/1284x2778.png)







## Blast Hole Pattern & Charge Available In
- [Bahrain](https://apptail.io/app/blast-hole-pattern-charge-pfuz/bahrain)
- [Denmark](https://apptail.io/app/blast-hole-pattern-charge-pfuz/denmark)
- [Mauritius](https://apptail.io/app/blast-hole-pattern-charge-pfuz/mauritius)
- [Netherlands](https://apptail.io/app/blast-hole-pattern-charge-pfuz/netherlands)

---

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