Review: Mould King 13112 Remote Controlled Crawl Excavator

Let me introduce you to the Mould King 13112 Remote Controlled Crawler Excavator, a product packed with unexpected features and functions.

Basic Information – The Mould King 13112 Excavator comes with 1830 bricks and is suitable for intermediate builders.

It adopts a 1:20 ratio design, with a length of nearly 50 cm and a height of 34 cm, which truly restores the appearance and size of the excavator.

Features – Mobile app control with fun programming and 3-speed adjustment.

This excavator simulates the operation of a real excavator.

By controlling the up and down movement of the robot arm and the 360-degree rotatable console, it uses the gear linkage function to drive the crawler, allowing you to experience the control of a real excavator.

Dual battery box drive – No. 1 battery box is used to control the boom and bucket, and No. 2 battery box is used to control the forward, backward and left and right turns of the excavator.

This design gives you smooth and precise control over the excavator’s functions.

beyond what I expected– Designed with a hood that opens to give you insight into the excavator’s inner workings

Whether you are an excavator enthusiast or someone who likes to explore the principles of mechanics, the Mould King 13112 remote control crawler excavator is really an irresistible product for you.

let’s start assembling

Read the instructions carefully before starting, then unpack the remote control crawler excavator and its components, take out all the parts and organize them and put all the materials on the table for easy access.

Step 1: Testing Motors and Charging Battery Boxes

Test all the motors to ensure they are functioning properly.

Connect the battery boxes and charge them if necessary.

Step 2: Building the Undercarriage and Tower

 Follow the instructions to assemble the chassis and tower sections of the excavator

Use the provided gears and axles to create the drivetrain.

Attach the motor assembly to the tower.

Step 3: Cable Routing

 Pay attention to the cable routing instructions.

Ensure the cables are properly positioned and secured.

Step 4: Building the Boom Arm

Construct the boom arm of the excavator according to the instructions.

Attach the necessary components, such as lights and additional motors.

Step 5: Connecting Battery Boxes and Remote Control

Connect one of the battery boxes to the remote control to enable driving functions.

Test the remote control to ensure it is working correctly.

Step 6: Adding Decorative Features

Apply stickers and decorative elements to the excavator as specified in the instructions.

Ensure proper alignment and placement.

Step 7: Completion

Once the assembly is finished, review the entire excavator to ensure everything is in place and working correctly.

Take a moment to appreciate your remote-controlled crawl excavator.

Notice:Troubleshooting and Adjustments

Double-check all the connections and make any necessary adjustments.

Ensure all parts are properly secured and functioning as intended.

Positive and Negative Aspects Evaluation

Next evaluate the product’s strengths and room for improvement, highlighting its excellence

Excellent after-sales service:

Mould King brand is very responsive to issues, especially when dealing with missing parts.

 Any minor issues with the product are resolved quickly and the seller’s customer service is excellent.

Product quality and construction experience:

This model is on par with well-known brands in terms of quality, and it was a lot of fun to build.

The building instructions are clear and easy to follow, and the instruction book helps with smooth assembly.

 The product has high stability and durability, and the excavator model is bulky and impressive.

 For adults who like a challenge, this figure offers enough challenge to keep interest going.

Remote control experience:

While the remote has limited functionality, more control is available through the phone app.

Buying experience and value:

 I am very satisfied with the experience of purchasing this brand product and would like to purchase again.

 Compared with well-known brands, this product has a greater advantage in price.


Controller and application questions:

The remote control only has 4 channels and needs to be constantly connected and turned off the controller to switch functions.

The mobile phone application is basically unusable, and there may be compatibility or operational difficulties.

Part quality and accessories issues:

Parts are coated with a varnish-like substance that makes them shiny but adds dimension and makes splicing difficult.

Gears are easily damaged or slipped during use.

Missing parts and after-sales problems:

Some parts are missing, resulting in an incomplete assembly.

Missing part bag in box, need to contact seller.

Comparison: Mould King 13112 Remote Controlled Crawler Excavator vs LEGO Heavy-Duty Excavator

Having introduced the Mould King 13112 Remote Controlled Crawler Excavator, we will now take a closer look at how this product compares to the LEGO Heavy-Duty Excavator. Although they are all excavator models, they have some differences in age, design and size, and features. Let’s take a closer look at these two fascinating rc excavator models.

Suitable Age:

The Mould King 13112 Excavator is designed for intermediate builders, making it suitable for users with a bit more experience. In contrast, the LEGO Heavy-Duty Excavator is ideal for children aged 8 and up, providing a more accessible building experience for a slightly older age group.

Design and Size:

The Mould King 13112 Excavator features a 1:20 ratio design, offering a realistic representation of a full-size excavator. With a length of nearly 50 cm and a height of 34 cm, this model accurately captures the appearance and size of an excavator. On the other hand, the LEGO Heavy-Duty Excavator measures over 9 inches (23 cm) in height, 14.5 inches (37 cm) in length with the arm fully extended, and 4 inches (11 cm) in width. It showcases a compact yet detailed design suitable for construction play.


Both excavator models provide engaging features for users. The Mould King 13112 Excavator offers mobile app control with fun programming, allowing for convenient remote control and customization of the excavator’s movements. It also includes a gear linkage function that drives the crawler, delivering a lifelike excavator experience

To sum it up, the Mould King 13112 Remote Controlled Crawler Excavator is an irresistible excavator product.

It stands out with authentic looks, versatile controls and a fun design that lets you enjoy your excavator.

Whether you are an excavator fan or like to explore the principles of mechanics, this product is definitely worth a try.

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