Automatic Rotary Bottle Screw Capping Machine

Product overview

The Automatic Rotary Bottle Screw Capping Machine is designed for manufacturers that require continuous, high-speed application of screw caps with controlled bottle movement and consistent tightening. Its rotary configuration makes it particularly suitable for production lines where output, closure accuracy and reliable container handling must operate together.

Technogen Enterprise is a Manufacturer and Supplier of Automatic Rotary Bottle Screw Capping Machine solutions for Tanzania, offering the range in 4-head, 6-head, 8-head and 12-head configurations. Depending on the selected machine configuration, bottle diameter and closure application, the series covers production requirements from approximately 60 to 200 bottles per minute.

The machine handles round, flat and square bottles manufactured from Glass, Plastic, PET, HDPE and LDPE. It is therefore well suited to production facilities handling different container materials and bottle formats.

This rotary screw capper uses a chute pick-up capping system. Bottles are first separated through the feed worm and transferred into the star-wheel assembly. Screw caps supplied from the cap-feeding unit travel through the delivery chute, where the moving bottle picks up the cap before entering the capping station.

A jaw-type screw capping head then tightens the closure. Mechanical torque adjustment allows the capping setting to be adapted according to the screw cap, supporting controlled and repeatable tightening throughout production.

The machine uses rotary continuous motion with synchronized bottle handling. A worm gearbox coupled with the motor provides machine transmission, while operating speed is adjustable through a Variable Frequency Drive.

Cap handling can be configured with a Vibrator Feeder, Mechanical Orientator or Cap Feeder Elevator, allowing the feeding arrangement to be matched to the geometry of the screw cap.

For Tanzania manufacturers increasing packaging output, the multi-head platform provides a scalable approach: a lower-head configuration can serve moderate-speed production, while higher-head configurations accommodate considerably greater throughput without changing the fundamental capping principle.

Working principle

Bottles enter the machine from the left-hand side and are separated at the required pitch by the feed worm.

From the feed worm, each bottle is transferred into the in-feed star wheel and carried towards the rotary capping turret.

Screw caps are automatically supplied from the selected cap-feeding system and guided into the cap delivery chute.

As the bottle moves through the star wheel, it picks the screw cap from the chute. This cap-transfer method gives the machine its chute pick-up type screw-capping operation.

The bottle then passes beneath the appropriate capping head. The jaw-type screw capping head engages the cap and tightens it onto the bottle.

Mechanical torque adjustment allows the capping force to be changed according to the closure requirement.

The conveyor, star-wheel assemblies and capping turret operate continuously, while a Variable Frequency Drive provides speed adjustment for the production line.

The No Bottle–No Cap system prevents unnecessary cap application when a container is absent. Mechanical safety clutches protect the feed worm and star-wheel systems, while bottle-jam detection at the out-feed stops the machine when an abnormal condition occurs.

After capping, the bottle exits through the out-feed star wheel and continues to the next packaging operation.

Salient features

• CGMP Model : Designed for hygienic automatic bottle-capping operations.
• SS 304 Contact Parts : Bottle and screw-cap contact parts are manufactured from Stainless Steel 304.
• Multi-Bottle Compatibility : Handles Glass, Plastic, PET, HDPE and LDPE bottles.
• Synchronized Drive System : Single motor synchronizes conveyor, star wheels and capping turret.
• Stainless Steel Slat Conveyor : Provides durable continuous bottle movement.
• Chute Pick-Up Capping : Bottle picks the screw cap directly from the cap delivery chute.
• Jaw-Type Capping Head : Provides controlled screw-cap tightening.
• Mechanical Torque Adjustment : Allows capping torque to be adjusted for different closures.
• Multiple Cap Feeder Options : Supports Vibrator Feeder, Mechanical Orientator or Cap Feeder Elevator.
• Variable Speed Control : Machine speed is adjustable through Variable Frequency Drive.
• Fast Product Changeover : Supports efficient conversion between compatible bottle formats.
• Maintenance-Friendly Design : Designed to minimise routine maintenance requirements.
• Production Counter : Inbuilt 6-digit counter supports production monitoring.

Safety & interlocks

• No Bottle–No Cap System : Prevents cap application when no bottle is present.
• Emergency Stop : Stops the machine immediately when activated.
• Feed Worm Safety Clutch : Stops operation during abnormal bottle feeding.
• Star Wheel Safety Clutch : Protects the machine during bottle-transfer irregularities.
• Out-Feed Bottle Jam Detection : Stops the machine when a bottle jam occurs at discharge.

Optional / add-on features

• PLC-HMI System
• Safety Cabinet

Applications & industries

Application items

• Pharmaceutical bottle screw capping.
• Food bottle and container screw capping.
• Beverage bottle screw capping.
• Nutraceutical bottle screw capping.
• Cosmetic bottle screw capping.
• Personal care container capping.
• Chemical bottle screw capping.
• Glass bottle screw capping.
• Plastic bottle screw capping.
• PET bottle screw capping.
• HDPE bottle screw capping.
• LDPE bottle screw capping.
• Round bottle screw capping.
• Flat bottle screw capping.
• Square bottle screw capping.