The 2-Track Rotary Checkweigher for Eye Drop Vials and Bottles is an automated in-line weight inspection system designed for pharmaceutical production lines. It provides continuous and non-contact dynamic weighing of eye drop vials or small bottles to identify products with underweight, overweight, missing contents, or filling inconsistencies.
With a dual-track rotary conveying structure, the system can handle two product lanes simultaneously, helping improve inspection efficiency while maintaining stable product positioning during weighing. Each vial is individually weighed and compared with the preset target weight and tolerance limits.
The Rotary Checkweigher can be integrated with upstream filling and capping equipment and downstream packaging or rejection systems. Products outside the configured weight range can be automatically separated from qualified products, supporting consistent quality control throughout the production process.
The system is suitable for pharmaceutical, healthcare, laboratory and other applications requiring reliable dynamic weight inspection of small bottles and vials.



Model: SG-Z2 (dual channel)
Weighing range: 5-300g
Minimum scale: 0.01g
Sorting accuracy: ±0.02 grams (depending on the product)
Sorting speed: maximum 50 pieces/minute (single channel)
Conveying speed:20-50m/min
Operation mode: touch operation
Conveying direction: Facing the touch screen from left to right
Rejection method: air blowing removal/push plate removal
Belt height from the ground: 750±50mm (can be customized according to customer requirements)
Machine structure: stainless steel (SUS304)
Power supply: 220V 50-60HZ
Power: about 1500W
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1.2-track simultaneous weighing for higher inspection efficiency
2.Rotary conveying system for stable vial positioning
3.Dynamic weight inspection of individual eye drop vials and bottles
4.Detection of underweight and overweight products
5.Identification of filling quantity or filling weight deviations
6.Automatic pass/reject separation
7.Adjustable target weight and tolerance parameters
8.HMI touchscreen for parameter setting and production monitoring
9.Real-time production statistics and weight data
10.Easy integration with filling, capping, labeling and packaging lines
11.Stainless steel construction suitable for pharmaceutical production environments
12.Optional data recording and communication interfaces









1.Before packaged, the machines will be tested strictly to guarantee the stability and high accuracy.
2.After tested, the machines will be wrapped with plastic sheet and carefully packed in wooden cases.
Packing Detail:
1.Each Machine with plastic film package first, then placed in a wooden case, wooden case with a foam filling.
2.We loaded the truck with heavy trucks for loading the cargo to the harbor terminal.At the dock we pack the goods in containers and ship them abroad.

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