Bottle Ropp Screw Capping Machine

Q: What is the production capacity of the Bottle ROPP Screw Capping Machine?

The machine is available in different models: Four Head : Up to 80–100 bottles per minute Six / Eight Head : Up to 120–180 bottles per minute It is suitable for medium to high-volume production lines.

Q: What bottle and cap sizes can the machine handle?

The machine supports a wide range of formats: Bottle Diameter : 24 mm to 90 mm Bottle Height : 50 mm to 250 mm ROPP Cap Sizes : 20 mm, 25 mm, and 28 mm (with change parts) It works efficiently with both glass and rigid plastic bottles.

Description

Bottle ROPP Screw Capping Machine (Roll-On Pilfer-Proof) is a specialized piece of equipment designed to securely apply and seal aluminum caps onto bottles, ensuring a tamper-evident closure. Widely used in industries such as pharmaceuticals, food and beverages, cosmetics, and chemicals, these machines provide a reliable and efficient method for sealing glass, plastic, PET, HDPE, or metal bottles with ROPP or screw caps. ROPP capping machines are engineered to apply unthreaded aluminum caps (or blanks) to bottles by forming threads and tamper-evident seals during the capping process. The “Roll-On Pilfer-Proof” mechanism involves pressing an aluminum cap onto the bottle neck and using rollers to shape the cap’s threads to match the bottle’s neck, creating a secure, tamper-evident seal that is difficult to remove without visible evidence of tampering. These machines are available in semi-automatic and fully automatic configurations, catering to both small-scale and high-volume production lines.

Bottle ROPP Screw Capping Machines are essential for industries requiring secure, tamper-evident sealing of bottles. Their ability to handle a wide range of bottle and cap types, combined with high-speed operation and robust construction, makes them a valuable asset for enhancing productivity and product safety.

Cap Feeder Options: Vibratory bowl, rotary feeder, or elevator for bulk cap feeding.

PLC and HMI: For precise control and programmable recipes.

Laminar Air Flow: For sterile environments.

Interchangeable Capping Heads: To accommodate different cap sizes and types.

Torque Adjustment: Allows customization of sealing tightness based on cap material.

Cost: ROPP cappers, especially multi-head automatic models, can be expensive to purchase and maintain.

Complexity for Changeovers: Adjusting for different cap sizes often requires skilled engineering or specific capping heads, which can increase setup time.

Material Limitations: Best suited for rigid bottles due to the pressure applied during capping. Soft plastic bottles may require additional support to avoid damage.

If you need details on specific models, pricing, or comparisons with multi-head machines, let me know!

Salient Features of Bottle Ropp Screw Capping Machine

Compact GMP model.
Quick and very easy change over and setting from one size of Container to another by a Single Ratchet.
Parts coming in contact with the Container or the Aluminum cap or exposed to atmosphere are made out of stainless steel for long life.
Single motor synchronizes Conveyor, star wheel and Platform Turret and speed can be varied by VFD.
IQ/OQ documentation can be provided.
Machine construction in Stainless Steel Finish
Cap Feeder with Variable Speed System for feeding control of caps. (optional)
Digital counter for counting production output.

“No Bottle – No Cap” system.
“Container Overturn – Machine Stop” mechanism.
Hopper can be completely dismantling for easy cleaning
Various safety features including Clutch system to avoid Bottle Breakage or Jamming
Star Wheel is equipped with safety clutch for automatic stoppage of machine in case of jamming or overloading.
PLC system with Graphical User Interface can be offered.
Inbuilt Laminar Air Flow can be offered for sterile class 100 filling.
Sampling and Rejection system can be provided on demand.

Working Principle of Bottle Ropp Screw Capping Machine

The filled bottles moving on conveyor belt and fed into an in feed star wheel by in-feed worm. While moving in feed star wheel, bottles pick up caps one by one from delivery chute. The descending rotary sealing heads hold bottle’s neck with desired pressure. The sealing is done in a programmed roll-on manner, accurate positioned of the caps is done mechanically by means of a rotating unscramble, to direct the caps correctly into the chute, when the chute is filled up the rotating unscramble drive is disengaged, hence, there is no chance to damage of caps. The sealing roller takes place due to rotating sealing head and transfer movement of sealing & threading rollers due to sealing cam. The sealed bottles are discharged by exist star wheel on conveyors.

The operation of a Bottle ROPP Screw Capping Machine varies slightly depending on whether it is semi-automatic or fully automatic, but the general process is as follows:

Bottle Feeding: Bottles are fed onto a conveyor belt or into an in-feed star wheel, ensuring proper spacing and alignment.

Cap Placement: In automatic machines, a cap feeder sorts and positions unthreaded aluminum ROPP caps onto the bottle necks. In semi-automatic models, the operator manually places the cap.

Capping Process: The bottle is positioned under the capping head. The head descends, applying downward pressure while four rollers rotate around the cap. The rollers press the aluminum cap against the bottle neck, forming threads that match the bottle’s ridges and creating a tamper-evident band.

Sealing and Release: The rollers shape the cap’s skirt, locking it securely onto the bottle. The capping head then retracts, and the sealed bottle is released to the exit conveyor or star wheel for further processing.

Tamper-Evident Feature: The tamper-evident band breaks upon opening, providing visible evidence of tampering, which enhances product safety and consumer trust.

Technical Specification of Bottle Ropp Screw Capping Machine

Model	ACSR-60	ACSR-120	ACSR-200
No. of Capping Heads	Single	Four	Eight
Production Rate	Up to 50 Containers/Minute	Up to 80 Containers/Minute	Up to 180 Containers/Minute
Container Diameter:	24mm to 90mm	24mm to 90mm	24mm to 90mm
Container Height:	50mm to 250mm	50mm to 250mm	50mm to 250mm
Cap Diameter:	20mm, 25mm & 28mm with the help of change parts	20mm, 25mm & 28mm with the help of change parts	20mm, 25mm & 28mm with the help of change parts
Power Specification:	1 H.P.	1 H.P.	2 H.P.
Electrical characteristics	440 Volts, 3 Phase, 50 Hertz, 4 Wire System	440 Volts, 3 Phase, 50 Hertz, 4 Wire System	440 Volts, 3 Phase, 50 Hertz, 4 Wire System
Conveyor Height	800mm to 900mm adjustable	800mm to 900mm adjustable	800mm to 900mm adjustable
Optional Accessories	Safety Cabinet Covering Machine	Safety Cabinet Covering Machine	Safety Cabinet Covering Machine
–	PLC with HMI	PLC with HMI	PLC with HMI
Overall Dimension	1500mm (L) X 850mm (W) X 1800mm (H) approx.	1675 (L) x 1000mm (W) x 1800mm (H) approx.	2000 (L) x 1000mm (W) x 1800mm (H) approx.

* Power voltage can be adjusted as per customer’s domestic power voltage requirements.
* Rights of technical improvements & modification reserved.
* Illustrations & dimensions are shown for information purpose only.

Types of Capping and Sealing Machine

Automatic Ropp Screw Capping Machine

Automatic Bottle Screw Capping Machine

Automatic Bottle CRC Capping Machine

Automatic Bottle Lug Capping Machine

Automatic Vial Capping Machine

Automatic Jar Capping Machine

Automatic Linear Bottle Capping Machine

High Speed Vial Cap Sealing Machine

High Speed Bottle Capping Machine

Semi Automatic Bottle Capping Machine

Applications of Capping and Sealing Machine

Advantages of Bottle Ropp Screw Capping Machine

Secure Sealing: Provides a robust, tamper-evident seal that minimizes leaks and contamination.

High Efficiency: Automated models enhance productivity, reducing labor costs and downtime.

Flexibility: Adjustable for various bottle and cap sizes, making it suitable for diverse applications.

Durability: Stainless steel construction ensures long-term reliability and easy cleaning.

Tamper-Evident Security: Enhances consumer trust by ensuring product integrity.

Key Features of Bottle Ropp Screw Capping Machine

Tamper-Evident Sealing: Ensures product integrity by creating a seal that shows visible signs of tampering.

Versatility: Can handle various bottle materials and cap sizes.

High-Speed Operation: Automatic models support speeds from 30 to 300 bottles per minute, depending on the number of capping heads.

Adjustable Settings: Height-adjustable systems and interchangeable capping heads allow for quick changeovers to accommodate different bottle and cap sizes.

Durability and Hygiene: Stainless steel construction ensures corrosion resistance and compliance with GMP standards for food, beverage, and pharmaceutical applications.

Precise Torque Control: Advanced PLC systems and variable frequency drives ensure consistent torque application, preventing leaks or cap damage.

Ease of Integration: Can be integrated into existing packaging lines with filling, labeling, and induction sealing machines.

Safety Features: Includes clutch systems to prevent bottle breakage and digital counters for production tracking.

FAQ for Bottle Ropp Screw Capping Machine

What is a Bottle ROPP Screw Capping Machine?

The Bottle ROPP Screw Capping Machine is a high-speed automatic rotary machine designed to apply and seal Roll-On Pilfer Proof (ROPP) aluminum caps on glass and plastic bottles. It rolls the cap onto the bottle neck to form threads and creates a secure, tamper-evident seal. This machine is widely used in the pharmaceutical, food & beverage, chemical, and cosmetic industries for packaging syrups, oral liquids, tonics, and other products.

What is the production capacity of the Bottle ROPP Screw Capping Machine?

The machine is available in different models:

Four Head: Up to 80–100 bottles per minute
Six / Eight Head: Up to 120–180 bottles per minute

It is suitable for medium to high-volume production lines.

What bottle and cap sizes can the machine handle?

The machine supports a wide range of formats:

Bottle Diameter: 24 mm to 90 mm
Bottle Height: 50 mm to 250 mm
ROPP Cap Sizes: 20 mm, 25 mm, and 28 mm (with change parts)

It works efficiently with both glass and rigid plastic bottles.

Why is ROPP capping preferred for bottles?

ROPP (Roll-On Pilfer Proof) capping is preferred because it provides excellent tamper-evidence. The lower ring breaks when the cap is opened for the first time, clearly indicating tampering. It also ensures a strong, leak-proof seal, improves product safety, and enhances shelf life — making it ideal for pharmaceutical syrups and oral liquids.

What are the key benefits and optional features?

Key benefits include high-speed operation, consistent tamper-evident sealing, quick size changeover, low maintenance, GMP-compliant design, and reliable leak-proof performance. Optional features include:

PLC with HMI and touchscreen
Laminar Air Flow (LAF) unit
Full safety cabinet enclosure
Variable speed cap feeder
IQ/OQ documentation

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