Soft Lid Sealing Machine

Keypack Intelligent Soft Cap Sealing Machine designed for automated sealing of silicone caps, rubber stoppers, and flexible plastic caps on bottles, jars, tubes, and cups. It delivers 30-50 containers per minute sealing capacity with pressure adjustment sealing technology and SUS304 stainless steel construction. Ideal for food sealing applications, cosmetic tube sealing, and pharmaceutical vial sealing in continuous production lines.

Product Overview

The Automatic Soft Cap Sealer is a specialized flexible lid sealing machine engineered for precise sealing of soft-quality caps through compression, rotation, or heat-sealing methods. This compact design equipment achieves secure closure between caps and containers, ensuring tight sealing performance for automated packaging lines.

The Keypack Intelligent (Kunbupack) Silicone Cap Sealing Machine features adjustable sealing pressure control that adapts to different soft cap materials including silicone caps, rubber stoppers, and flexible plastic lids. This pressure adjustment sealing capability prevents cap deformation while maintaining reliable seal integrity, accommodating caps with varying thickness and hardness levels.

Built for multi-container compatibility, this Rubber Cap Sealer handles diverse packaging formats including bottles, jars, tubes, and cups with quick changeover functionality. Operators can rapidly adjust positioning mechanisms to switch between container types with minimal downtime, supporting production rates from 100 to 1,200 bottles per hour depending on container size and cap specifications.

Technical Specifications

Key Features and Machine Characteristics

1. Pressure Adjustment Sealing for Multiple Cap Materials

The flexible lid sealing machine features variable pressure control that adapts to different soft cap materials, preventing deformation of delicate silicone or rubber caps while ensuring secure sealing. This adjustable sealing pressure accommodates caps with varying thickness and hardness, maintaining consistent seal quality across production batches and reducing rejection rates.

2. Quick Changeover for Multi-Container Compatibility

This automatic soft cap sealer handles diverse container formats including bottles, jars, tubes, and cups with rapid format changeover capability. Operators can adjust positioning mechanisms quickly without extensive downtime, reducing setup time between production runs and improving overall equipment effectiveness for multi-product packaging facilities.

3. Automatic Cap Feeding Integration

The compact design machine integrates with upstream automatic cap feeding systems and cap orientation equipment, enabling fully automated production workflows. This integration eliminates manual cap placement, reduces labor costs, and maintains consistent production speeds from 100 to 1,200 BPH depending on container specifications and cap type requirements.

4. Manual/Auto Mode Operational Flexibility

Dual operation modes provide flexibility for both high-volume automated production and small-batch manual operations. Operators can switch between manual and auto modes based on production requirements, supporting validation runs, product development trials, and full-scale manufacturing with a single piece of equipment.

5. Compact Design for Space-Efficient Integration

The machine's compact footprint allows easy integration into existing production lines without requiring extensive floor space modifications. The streamlined design facilitates placement in cleanroom environments and supports efficient material flow in pharmaceutical packaging and cosmetic packaging operations.

6. Food-Grade Stainless Steel Construction

SUS304 stainless steel construction ensures compliance with food safety standards and pharmaceutical GMP requirements. The hygienic design facilitates cleaning and sanitization procedures, prevents product contamination, and provides long-term durability in demanding production environments.

Application Areas

Food Sealing Applications

• Sauce bottles: Ketchup, mayonnaise, salad dressing, and cooking sauces in bottles with soft plastic caps or silicone sealing caps for retail liquid packaging
• Yogurt cups: Dairy products, Greek yogurt, and flavored yogurt in cups with silicone seal caps for freshness preservation and cream packaging
• Jelly cups: Fruit jelly, pudding, and dessert cups with flexible lids for snack packaging and portion control
• Beverage bottles: Juice, smoothies, and functional drinks in bottles with soft plastic or silicone sealing caps for liquid packaging lines
• Baby food jars: Pureed fruits, vegetables, and infant meals in jars with rubber seal caps requiring tamper-evident closure

Cosmetic Tube Sealing and Personal Care

• Skincare cream tubes: Face creams, moisturizers, and anti-aging products in tubes with soft caps for cosmetic tube sealing operations
• Shampoo small bottles: Travel-size shampoo, conditioner, and hair treatment products with flexible plastic caps for personal care packaging
• Hand cream jars: Hand lotions, body butters, and intensive care creams in jars with silicone seal lids for cream packaging applications
• Lotion bottles: Body lotions, facial serums, and skincare emulsions requiring soft cap closure for cosmetic packaging lines
• Travel-size cosmetics: Portable skincare, makeup removers, and cleansers in tubes with rubber stoppers for retail cosmetic packaging

Pharmaceutical Vial Sealing and Medical Applications

• Oral liquid bottles: Cough syrups, liquid medications, and pediatric formulations in bottles with sterile soft caps for pharmaceutical vial sealing
• Ointment tubes: Topical medications, antibiotic creams, and dermatological treatments in tubes with rubber seal caps for pharmaceutical packaging
• Sample collection tubes: Blood collection tubes, specimen containers, and diagnostic samples with silicone caps requiring sterile soft cap sealing
• Vitamin bottles: Liquid vitamins, mineral supplements, and nutraceutical products with flexible safety caps for health supplement packaging
• Medical device packaging: Sterile instruments, diagnostic kits, and medical supplies requiring soft seal closure for sterility maintenance

Other Industry Applications

• Nutraceutical bottles: Health supplements, protein powders, and wellness products in bottles with soft plastic caps for supplement packaging
• Pet food jars: Wet pet food, treats, and nutritional supplements in jars with flexible lid sealing requirements for animal nutrition packaging
• Chemical reagent bottles: Laboratory chemicals, analytical reagents, and research materials in small bottles requiring soft cap containment
• Laboratory sample containers: Research samples, testing materials, and quality control specimens with rubber stopper sealing for secure storage

Material Compatibility Note: This automatic cap feeding system is optimized for soft-quality caps and flexible lid materials including silicone, rubber, and flexible plastics. Container dimensions and cap specifications should be verified to ensure compatibility with the adjustable sealing mechanism and mold requirements for optimal sealing performance.