Last Updated: May 7, 2026

SCARA Robot Tea Can Boxing Automation: 15-Second Box Packing Video

SCARA robot tea can boxing automation is designed for high-speed sorting, precise box loading, and divider placement in premium tea packaging lines. Each box typically holds 10 small tea cans, with divider paper placed between the cans to protect the product surface. In manual operation, the boxing step is slow and inconsistent, and divider misalignment can create wrinkles or can damage during lid closing.

If the embedded player does not load, open the video directly on YouTube: SCARA Robot Tea Can Box Packing Automation.

Process Overview and Solution Value

Small can tea products have become a representative format in premium tea packaging. The box structure is compact, the can surface must remain clean, and the divider must align accurately before lid closing. A divider offset above 2 mm can cause visible wrinkles or pressure damage on the can surface, directly affecting appearance quality and consumer experience.

The current practical solution uses a high-speed SCARA robot with mechanical vision dual-positioning. One robot can serve two packaging lines and support full-category compatibility. A typical target is a 15-second cycle per box, or about 240 boxes per hour. For model selection and arm configuration, see the EVST SCARA Robot Series.

Changeover should not require hardware replacement. In a well-designed cell, operators adjust program parameters and gripper positioning pin spacing for different can diameters and heights. This can reduce changeover from 2 to 3 days to 4 to 6 hours, which matters during peak-season capacity ramp-up.

Common Pitfalls

Divider alignment accuracy is insufficient. If divider placement deviation exceeds about 2 mm, the divider can wrinkle during lid closing or press against the can body. This creates visible quality defects even when the robot completes the pick-and-place motion successfully.

Full-category changeover takes too long. Different tea varieties can use different can heights and diameters. Conventional solutions often require gripper replacement during changeover, making production ramp-up slow and reducing the value of automation.

Vision positioning does not match mechanical positioning. After vision identifies the can position, the SCARA robot’s real grasp point may still have systematic offset from the camera coordinates. Without careful calibration, the boxing misalignment rate rises even when the vision image looks correct.

Cycle time does not match conveyor speed. The target boxing cycle may be 15 seconds per box, but upstream can supply can fluctuate. Without buffering, the line may alternate between empty-box events and can piling, which reduces OEE.

Core Technical Solutions

SCARA robot selection. Tea can boxing is a planar high-speed pick-and-place application. SCARA robots provide high rigidity in the XY plane, controlled Z-axis motion, and repeatability that can reach ±0.01 mm. For light-load high-speed packaging, this is usually more suitable than a 6-axis robot. Related pick-and-place configurations are available in the EVST pick and place robot category.

Mechanical vision dual-positioning. A 2D vision system performs initial can positioning. Then the SCARA end-effector uses mechanical positioning pins for secondary precise positioning. This dual-positioning architecture can control boxing error within about ±0.5 mm when calibration is maintained.

Flexible gripper design. The gripper should combine pneumatic vacuum suction and mechanical positioning pins. The suction cup picks the top of the can, while positioning pins limit the can body. One gripper can cover multiple can diameters if the mechanical adjustment and software recipes are planned from the start.

Gantry feeding coordination. The upstream gantry robot or transfer mechanism moves small cans from the conveyor to the boxing station waiting area. The SCARA robot then performs the high-speed box loading motion. This relay design lets two packaging lines share one robot without forcing the SCARA to chase unstable upstream flow.

Standardized Engineering Layout

A standardized tea can boxing cell integrates the SCARA robot, flexible gripper, conveyor, gantry feeding mechanism, safety system, and electrical control system. The workflow is simple: cans arrive by conveyor, upstream handling transfers them to the waiting area, the SCARA robot uses vision and mechanical positioning for precise grasping, and the cans are placed into a 10-can box with dividers before the product moves to lid closing and sealing.

The boxing station should include vision reinspection to identify empty cans, deformed cans, or incorrect placement before downstream sealing. The safety system should include perimeter fencing, interlocked doors, light curtains, and a safety PLC. For SCARA model comparison and application limits, see the EVST SCARA robot selection guide.

For heavier or longer-reach applications, a model such as the 20 kg payload 800 mm SCARA robot EVS20-800P may be considered. The final selection should be based on box pitch, gripper mass, can diameter range, reach envelope, and required cycle time.

Technical Summary

The value of tea can automatic boxing and divider insertion lies in balancing three factors: high-speed cycle time, precise alignment, and flexible changeover. The SCARA robot determines the speed ceiling. Dual-positioning determines the accuracy ceiling. The flexible gripper determines how quickly the line can switch between product categories.

The hardware selection is already mature. The real bottleneck is calibration accuracy between vision and mechanical positioning, plus fast parameter switching during multi-category production. Buyers should evaluate an integrator’s food packaging project experience, calibration procedure, acceptance standards, and ability to build a reusable can-diameter recipe database.

Last Updated: May 7, 2026