Bring the fascinating rhythm of heavy industrial machinery to your collection with the ROKR Oil Extractor CGL03, an interactive mechanical model from the ROKR Industrial City Series.
Inspired by the classic oil-field pumpjack, commonly known as a “nodding donkey,” this detailed 127-piece DIY model recreates the distinctive repetitive movement used in traditional oil extraction systems.
Once assembled and powered, an interconnected gear-driven mechanism operates the piston pump and cantilever arm, producing the characteristic up-and-down pumping motion associated with real oil-field machinery. The coordinated movement transforms the completed build from a static miniature into an animated demonstration of mechanical engineering.
Constructed from a combination of plastic and metal components, the CGL03 is designed to provide precise movement and a satisfying hands-on building experience. Standing approximately 24.3 cm tall, its distinctive industrial silhouette makes it an eye-catching display piece for a desk, shelf, workspace, or mechanical model collection.
As part of the expandable Industrial City Series, the Oil Extractor can also be integrated with other compatible models using separately available connection and power accessories.
🔧 Product Details
| Specification |
Details |
| Product |
Oil Extractor Mechanical Model |
| Brand |
ROKR |
| Model |
CGL03 |
| Series |
Industrial City Series |
| Product Type |
DIY Mechanical Model |
| Number of Pieces |
127 |
| Material |
Plastic & Metal |
| Assembly Size |
135 × 80 × 243 mm |
| Package Size – Top |
315 × 237 × 80 mm |
| Package Size – Bottom |
308 × 230 × 80 mm |
| Mechanical Movement |
Yes |
| Main Feature |
Gear-Driven Pumping Motion |
| Power Connection |
USB Type-C |
| Type-C Cable Included |
No |
| Assembly Required |
Yes |
✨ Features
- Part of the ROKR Industrial City Series
- Detailed 127-piece DIY mechanical construction
- Inspired by a classic oil-field pumpjack
- Recreates the iconic “nodding donkey” pumping action
- Coordinated gear-driven mechanical movement
- Moving piston pump mechanism
- Animated cantilever arm
- Combination of plastic and metal components
- Impressive 24.3 cm finished height
- Designed for interactive mechanical display
- Can complement other compatible Industrial City Series models
- Suitable for desks, shelves, offices, and mechanical collections
⚙️ Recreate the Rhythm of Industrial Machinery
The oil-field pumpjack is one of the most recognisable machines in industrial engineering.
Its characteristic rocking motion transfers mechanical energy through a system of components that operate the pumping mechanism below. The ROKR CGL03 captures this distinctive movement in miniature form, allowing you to observe the coordinated mechanical action directly.
Once activated, the model's cantilever arm repeatedly rises and falls, creating the unmistakable rhythmic movement of a working pumpjack.
🔩 Gear-Driven Mechanical Motion
At the heart of the Oil Extractor is an interconnected gear system that drives the model's animated pumping action.
The mechanism coordinates the movement of the piston pump and cantilever arm, converting rotational motion into the repeated vertical movement that defines the machine's operation.
This visible mechanical action makes the completed model both an engaging display piece and an interesting demonstration of motion transmission.
🧩 A Rewarding 127-Piece Build
With 127 components, the ROKR Oil Extractor offers an engaging mechanical assembly project without requiring the scale of a much larger model.
The combination of plastic and metal parts contributes to the model's industrial appearance and mechanical construction. Piece by piece, the gears, structural elements, and pumping mechanism come together to create a functional animated display.
🏭 Expand Your Industrial City
The CGL03 Oil Extractor forms part of the broader ROKR Industrial City Series, a collection inspired by machines, engineering, communication, transport, and industrial technology.
Compatible models can be displayed together and integrated into a larger mechanical collection using appropriate separately available connection and power accessories, including compatible hub systems.
⚠️ Important Notes
- Connectors are sold separately
- A USB Type-C power cable is required
- Type-C power cable is not included
- Additional compatible connection or power accessories may be required when integrating multiple Industrial City Series models
⭐ Why You'll Love It
- Recreates the iconic movement of a real oil-field pumpjack
- Detailed 127-piece mechanical DIY project
- Mesmerising gear-driven pumping action
- Visible mechanical movement
- Combination of plastic and metal components
- Impressive 24.3 cm finished height
- Compact footprint for easy display
- Excellent addition to the ROKR Industrial City Series
- Ideal for mechanical engineering and model-building enthusiasts
- Dynamic display piece that comes to life when powered
⚙️ ROKR CGL03 • Industrial City Series • 127 Pieces • Gear-Driven Pumping Motion • 24.3 cm Tall • Build the Machine and Watch Industrial Engineering Come to Life 🏭✨
