Bulldozer A12 V3.11
This Old Kings expert advisor (trading robot) for MetaTrader 4 is called Bulldozer A12 V3.11. The file name marks it as version 3.11. It raises the lot size after losses (martingale — high risk), works with a grid of orders and can size trades from your risk. It has 22 settings, for example Trades Set (default Trades Settings), Max Balance Loss (default 50) and Max Trades (default 4). Before any live use, test it on a demo account and check its lot size, stop loss and trading hours. Inside: 1 EA file with source code (.mq4) you can open and edit in MetaEditor. Old Kings are classic community tools shared as-is. Not tested by PolyMaria. Try it on a demo account first. Are you the author of this tool? Message us on Telegram (@abumarket_support) and we will credit you or take it down.
Expert advisor · MT4 · v3.11 · Free
About Bulldozer A12 V3.11
Bulldozer A12 V3.11 is an expert advisor (trading robot) for MetaTrader 4. It increases the lot size after a losing trade (martingale), opens a grid of orders at fixed price steps and can size trades from your balance and risk percent. It has 22 settings, such as Trades set, Max balance loss and Max trades. MQL source code included.
It also has a news filter.
Files in the download: Bulldozer_A12_v3.11.mq4.
Trading robots can lose money. Check every setting and test on a demo account before using real funds.
Settings
| Setting | Default | What it does |
|---|---|---|
| Trades set | Trades Settings | |
| Max balance loss | 50 | %% , 1-, |
| Max trades | 4 | Maximum number of open trades |
| Max open orders | 4 | , |
| Lot set | Lot Settings | |
| Init lot | 0.01 | |
| Lot exp | 2.5 | |
| Max lot | 1.0 | |
| Step set | PipStep Settings | Distance between orders |
| Init pip step | 25 | Initial PipStep |
| Start dyn step | 3 | Distance between orders |
| Pip step inc | 10 | , 0 |
| Tp set | TakeProfit Settings | |
| Take profit | 10 | Take profit distance |
| Sig set | Signals Settings | |
| Price distance | 35 | Distance between orders |
| Number of bars | 25 | |
| Gen set | General Settings | |
| Mn buy | 1 | |
| Mn sell | 1 | |
| Debug | True | |
| Sound | False | Turn this alert on or off |
How to install
- Download the ZIP from your PolyMaria library and unzip it.
- In MetaTrader 4 open File → Open Data Folder, then go to MQL4 → Experts.
- Copy the .mq4 file(s) there. Put any .mqh files in MQL4 → Include.
- Open the .mq4 file in MetaEditor and press Compile (F7) if MetaTrader does not show it.
- Drag the expert advisor from the Navigator onto a chart, check the settings, allow Algo/Auto Trading and press OK.
- Test it first on a demo account or in the Strategy Tester.
Tags: Martingale · Grid · Risk & Lot Size · News Trading · MT4 Expert Advisor · MQL4 Source Code