# Pipe Coil Development Pro — Limpet & Coil Length Tools

> Limpet & Coil Length Tools (iPhone/iPad app by Imran Pinjara.)

- Source: https://appshunter.io/ios/app/pipe-coil-development-pro/id1491738588 (this page in markdown: same URL + `.md`)
- Developer: [Imran Pinjara](https://appshunter.io/developer/1484488781)
- Category: Utilities, Productivity
- Price: $3.99
- Age rating: 4+
- Requires: iOS 16.1 · 1 MB
- Languages: American English
- Released: 2019-12-18
- Data updated: 2026-09-08
- User reviews in markdown: https://appshunter.io/ios/app/pipe-coil-development-pro/id1491738588/reviews.md

## What is Pipe Coil Development Pro?

Pipe Coil Calculator is a professional fabrication and engineering tool for calculating pipe coil lengths, limpet coil lengths, half-pipe jacket lengths, and coil development layouts used in process equipment manufacturing.

It is designed for fabrication engineers, mechanical engineers, pressure vessel fabricators, process equipment manufacturers, estimators, and workshop professionals working with reactors, agitators, mixers, pressure vessels, and other industrial equipment.

Available Calculators

1. Internal / External Helical Coil

Calculate the required length of internal or external helical pipe coils for vessels and industrial equipment. Useful for coil fabrication, material estimation, and costing.

2. Shell Limpet / Half-Pipe Jacket Coil

Calculate the required length of limpet coil or half-pipe jacket installed on cylindrical shells.

Inputs include shell diameter, number of turns, and coil pitch. The result can be used for fabrication planning, material estimation, and costing.

3. Dish End Limpet Coil

Calculate the required length of limpet coil installed on pressure vessel dish ends using coil starting arc distance, number of turns, and pitch.

4. Dish End Limpet Development

Develop sector-based layouts for fabricating half-pipe jackets on dish ends.

Inputs include:

• Dish crown radius
• Dish thickness
• Pipe coil outside diameter
• Pipe thickness
• Coil pitch
• Sector starting distance
• Sector ending distance

The calculator provides development information for individual sectors to simplify dish end limpet coil layout and fabrication.

Key Features

• Internal and external helical coil length
• Shell limpet coil length
• Half-pipe jacket length
• Dish end limpet coil length
• Dish end limpet development
• Sector-based coil layout
• Coil pitch and turn calculations
• Shell and dish end calculations
• Cord distance consideration for practical coil-end matching
• Metric and Imperial units
• mm and inch dimensions
• Automatic unit conversion
• Fabrication-friendly results
• Simple and professional interface
• Fast calculations
• No internet connection required
• No distracting advertisements

Applications

Pipe Coil Calculator is useful for:

• Pressure Vessel Fabrication
• Process Equipment Manufacturing
• Chemical Reactors
• Agitators and Mixers
• Jacketed Vessels
• Storage Equipment
• Industrial Process Equipment
• Limpet Coil Fabrication
• Half-Pipe Jacket Fabrication
• Coil Rolling and Fabrication
• Material Estimation and Costing

Whether you need to calculate a helical pipe coil, shell limpet coil, dish end coil, or develop sectors for a half-pipe jacket, Pipe Coil Calculator provides practical calculation tools for everyday fabrication and engineering work.

For fabrication layouts, use appropriate dimensions and allowances according to your actual manufacturing method and project requirements.


## Version history (last 3 releases)

### 3.0 — 2026-08-27

Upgraded to Higher SDK level.
Changes in App UI/UX.
Added Fractional Input support.
Display Units in Result Data.
Removed Decimal Fraction Chart.
Improved Input Field Labeling and placeholder.
Improved calculation speed.
fix minor bugs/issues

### 2.0 — 2023-05-27

Unit Setting Option for mm/inches added.
decimal fraction chart added.
keyboard dismiss issue resolved.
App Upadet for Higher SDK Level for latest version support.
App Theme Changed.
App UI Design Changed
App Navigation Changed.
fix app stability and performance issue.
improve user experience.
fix minor bug

### 1.0 — 2019-12-18

No release notes.

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## More apps by Imran Pinjara

- [Screw Flight Pro](https://appshunter.io/ios/app/screw-flight-pro/id1484488782)
- [Miter Bend Pro](https://appshunter.io/ios/app/miter-bend-pro/id1484821889)
- [Flange Hole Marker Pro](https://appshunter.io/ios/app/flange-hole-marker-pro/id1486290745)
- [Pressure Vessel Heads Pro](https://appshunter.io/ios/app/pressure-vessel-heads-pro/id1486607999)
- [Petal Layout Pro](https://appshunter.io/ios/app/petal-layout-pro/id1486823832)
- [Pump Calculator](https://appshunter.io/ios/app/pump-calculator/id1487084383)

All apps by Imran Pinjara: https://appshunter.io/developer/1484488781

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-08.*