Top Entry Robot

Top Entry Robot

Top entry robot is one kind of injection molding robot. It is used for different kinds of horizontal injection molding machine, and the robotic arm is going inside the mold from the top, not from the side. The vertical arm is single stage and telescopic stage. The traverse beam can be driven by pneumatic, inverter or AC servo motor. By using a linear robot arm can improve the productivity by 20%-30%, stabilize the product quality, reduce the waste rate, reduce the production cost, enhance the competitiveness of enterprises and other aspects to play an important role, high accuracy, good stability, convenient operation.

What is Top Entry Robot?

Top entry carries out robots in two various sizes, RP2 and RP3. They are accessible for the vertical injection molding automation field. Both sizes can operate different works. The top entry robots come with different components, including servo motors & drivers, cylinders, pneumatic valves, and PLC. Moreover, the automated top-entry robots’ performance and consistency are obvious in their innovative electronic components. They achieve accuracy and high-value speed with their servo-motorized operations. 

The robotic top entry systems are designed to give reliability, rigidness, and versatility. They are suitable for any format depending on the specific sizes to be manufactured. Due to their great flexibility and adaptability, one robot system can accommodate multiple products and are customizable according to your needs.

Advanced Top Entry Robot for Plastic Injection Molding

Alfarobot engages 3-axis robots, also called top-entry robots used for horizontal plastic injection molding equipment. They are also required for increased or faster production operations. These 3-axis robots are the laborer of plastic injection molding equipment throughout multiple industries.

Typical Advantages

Using top-entry robots offers numerous advantages, which include, but are not limited to the following:

  • Easy Operate: The touch-screen properties of mentioned robots make them easy to operate. They are automatic and convenient for the interface. 
  • Efficient Production: The top entry robots’ bi-mutual operation and servo-automated systems provide energy efficiency. Their robust and lightweight construction also achieves efficient production. 
  • Stable Structure: The automated robots have a compact structure and bookable control panels. Their accurate positioning and durable steel chassis structure make them easy to maintain and operate.
3-Axis(Top Entry) Robot Applications

The top entry or 3-Axis robots are used for the following applications.

  • Automatic palletizing and packaging
  • Automated inspection
  • Automated insert loading
  • IML automation
  • IMD automation
  • Automated stacking and sorting
  • Automated handling and part picking
  • and more
Top Entry Robot Specifications
X-Axis(Transverse)  Y-Axis (Vertical) Z-Axis (Longitudinal)
Working Stroke (mm) RP2-1400

RP3- 2000

RP2- 400-500

RP3- 500-750

RP2- 700-1100

RP3- 800-1400

Maximum Speed (m/s) 2.5 4 1


Specification Value
Gripper Unit Overturning (pneumatic) 90°
Wrist Swivel (pneumatic) 0° to 90° / 0° to 180° (Optional)
Air Supply 6 bar, 600 kPa
Power Source 380 V / 3 PH / 50 HZ
Maximum Weight 10 to 19-kilogram
Injection Molding Machine  RP2-150 to 350 ton

RP3- 350 to  650 ton

General Features

There are multiple typical features of top entry robots, including the following:

  • Comes with 1 or 3-axis servo controls
  • Flexible design, adapting all types of applications
  • Designed with touch screen feature
  • Space-saving construction
  • High-speed
  • Cost and operation guarantee
  • Double-guide axes
  • No belt pinion-rack spread
Top Entry Robot: Series and Mechanical Systems


These are the fundamental contrasts between the three series of industrial robots;

The X-Series has a feature of state-of-the-art technology. They are known for their record-breaking functionality, control, speed, and performance. It performs well with robots from small to big-sized. Additionally, it is an EVO control unit.

The E-Series has advanced features like optimum positioning accuracy. This type of robot is exclusively for small and medium-sized robots. The control unit is an EVO.

The Prime Series has control of the prime unit. They might be simple, but it is functional and accurate types. This classification is ideal for small-sized robots. 

Mechanical Systems

The Top Entry Robot’s mechanical systems are classified according to their mechanical performance, with a guarantee of maximum performance in specific sectors.

GS, ME, MC, and RHEA are front connected on the collection of vertical axes to the extraction axis. The extraction axis and item collision issues are intrinsically free in this architecture.

CL, CX, and CO are on the opposite side of the hopper is a cantilever fixed on the extraction axis. The architecture’s strength in this case relies on the complete absence of a hopper side footprint.

What are the Differences Between 3-Axis and 6-Axis Robot?

3-Axis Robots: These robots have a narrower range of motion than 6-axis robots since they only have a 3-DOF robotic arm. They particularly move with the X, Y, and Z axes.

6-Axis Robots: These robots can motion in roughly the same range as human arms due to their entire 3-DOF robotic arm movement. And unlike 3-axis robots, they can shift orientation.

One Stop Robot Arm Manufacturer

If you are looking for professional robot arm manufacturer, especially injection molding machine robot arm, Alfarobot is your premier choice.

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