---
title: El Tornillo Motor Injection Machine
slug: el-tornillo-motor-injection-machine
description: ### Using the Injection Machine

This injection machine uses a motor to reduce manual effort and increase pressure for creating detailed products.
tags: ["HDPE","melting","injection","PS","LDPE","PP"]
category: Machines
difficulty: Hard
time: 3-4 weeks
location: Bogota, Colombia
---
import { Image } from 'astro:assets'
# El Tornillo Motor Injection Machine
<Image src={import('./IMG_5422-1879a27155c.jpg')} alt="El Tornillo Motor Injection Machine" />
### Using the Injection Machine

This injection machine uses a motor to reduce manual effort and increase pressure for creating detailed products.

User Location: Bogota, Colombia
## Steps
### Step 1: Machine description

## Machine Design: Motor Injection Machine

### Dimensions:
- Height: 76.77 in (195 cm)
- Width: 19.69 in (50 cm)
- Depth: 19.69 in (50 cm)

### Cost:
- In Colombia, Bill of Material: COP$4,700,000

### Distinctive Features:
- Motor-driven pressure application replaces the manual lever of older models.

### Compatibility:
- Suitable for injection molds.

### Plastic Types:
- PP, HDPE, LDPE, PS


<Image src={import('./Drawings-230412-1879a1fd178.jpg')} alt="Drawings-230412-1879a1fd178.jpg" />

### Step 2: Tools needed

To build this machine, you will need:

- Turning (machining on a lathe)
- Milling (machining on a mill)
- General metalworking (cutting, drilling)
- Welding
- Advanced assembly work (requires specific tools, measurement instruments, and knowledge of tolerances for alignment and assembly)
- General electrical work (wiring safety switches, temperature controllers)
- Motor electrical work (wiring motors, contactors, overload protection)


<Image src={import('./Screenshot_2023-04-19_at_10.24.12-1879a1e0b8f.png')} alt="Screenshot 2023-04-19 at 10.24.12-1879a1e0b8f.png" />


<Image src={import('./Screenshot_2023-04-19_at_10.24.17-1879a1e2316.png')} alt="Screenshot 2023-04-19 at 10.24.17-1879a1e2316.png" />


<Image src={import('./Screenshot_2023-04-19_at_10.24.22-1879a1e3832.png')} alt="Screenshot 2023-04-19 at 10.24.22-1879a1e3832.png" />

### Step 3: Build the machine!

Watch this video for instructions on building the machine:

0:00 Introduction
3:09 Motor Injection Machine Overview
3:36 Chapter I: Frame Construction
7:12 Chapter II: Mould Area Assembly
8:25 Chapter III: Piston System Installation
14:39 Chapter IV: Heating Barrel Setup
17:51 Chapter V: Electrical Wiring
18:56 Chapter VI: Motor Connection
20:10 Chapter VII: Final Assembly

### Step 4: Inject!

How to Operate the Machine

1. Activate the machine and load the barrel with plastic.
2. For the initial injection, allow 25 minutes after activation and loading.
3. Position the mold on the jack surface and press it firmly against the nozzle.
4. Engage the motor to lower the piston, forcing the molten plastic into the mold until the belt slips in the pulley.
5. Deactivate the motor and maintain piston pressure for approximately 5 seconds.
6. Reverse the motor to raise the piston.
7. For continuous use, refill the barrel before detaching the mold from the nozzle.
8. Lower the jack to remove the mold.
9. Open the mold and extract the molded part.
10. Close the mold and repeat the process from step 3.

Recommendations

Molds must feature a conical nozzle connection or require an adapter. The machine generates significant pressure, allowing for the injection of items with thin walls.


<Image src={import('./WhatsApp_Image_2023-04-14_at_9.05.51_AM-1879f335ab6.jpeg')} alt="WhatsApp Image 2023-04-14 at 9.05.51 AM-1879f335ab6.jpeg" />

### Step 5: Buy on the Bazar

This guide outlines the process for constructing a Motor Injection Machine.

For those unable to replicate the machine or interested in purchasing other machines or molds, please visit my shop.


<Image src={import('./Screenshot_2023-04-19_at_10.20.30-1879a1a7e0e.png')} alt="Screenshot 2023-04-19 at 10.20.30-1879a1a7e0e.png" />