Product Overview
The Medium Speed Paper Cup Forming Machine is a high-efficiency automatic system designed for stable, continuous paper cup production. It operates at 90–130 cups per minute depending on cup size and configuration, delivering a balanced combination of productivity, mechanical stability, and operating efficiency.
The machine processes 150–350 gsm single and double PE-coated paper, producing leak-resistant hot and cold beverage cups ranging from 4 oz to 22 oz. It integrates a precision indexing system, synchronized forming stations, and PLC-controlled operation to ensure consistent output and low material waste in industrial production environments.
Key Engineering Advantages
Reinforced Structural Frame System: Heavy-duty welded steel frame ensures stable mechanical alignment during long-hour continuous operation.
Multi-Zone Thermal Control System: Independent heating zones for wall sealing, bottom forming, and rim curling ensure stable bonding of PE-coated paper.
Precision Servo Indexing System: Servo-driven rotary control ensures accurate synchronization between feeding, sealing, and forming processes.
Stable Bottom Sealing System: Optimized pressure and heating distribution ensure uniform, leak-proof bottom formation.
Multi-Size Production Flexibility: Supports multiple cup diameters and heights with fast tooling adjustment.
Continuous Operation Design: Optimized lubrication and thermal balance system support long-cycle stable production.
Technical Specifications
|
Item |
Specification |
|
Paper Material |
150–350 gsm double-side PE coated paper |
|
Cup Size Range |
4 oz – 22 oz (customizable) |
|
Production Speed |
90–130 pcs/min (depending on cup size) |
|
Power Supply |
380V / 220V, 50Hz / 60Hz |
|
Total Power |
12–18 kW |
|
Air Requirement |
0.4–0.6 MPa, ≥0.6 m³/min |
|
Heating System |
Multi-zone independent thermal control |
|
Drive System |
Servo-controlled rotary indexing |
|
Machine Weight |
3000–3800 kg |
|
Machine Dimension |
Approx. 3000 × 1500 × 1850 mm |
Machine Structure System
Paper feeding and alignment unit
PE-coated sealing system
Bottom forming and reinforcement system
Rim curling and shaping system
Automatic stacking and output system
Modular design supports stable production and easy maintenance.
Working Principle
Feeding & Wall Sealing: Paper blanks are aligned and sealed to form the cup wall structure.
Bottom Forming: Bottom paper is cut, inserted, and positioned into the cup body.
Preheating & Knurling: Heat softens coating, and mechanical knurling forms a sealed bottom.
Rim Curling & Output: Top edge is formed into a rigid rim before automatic stacking.
Application Scope
Coffee and hot beverage paper cup production
Milk tea and takeaway packaging manufacturing
Fast-service food packaging systems
Cold drink and dessert cup production
Institutional catering supply manufacturing
Large-scale industrial disposable packaging production lines
Custom Engineering Options
Cup size range adjustment (diameter and height configuration)
Heating zone optimization for different PE coating thickness
Production speed calibration for line integration
Logo embossing system integration
Electrical configuration for regional standards
Automatic stacking and counting system upgrade
Quality Control & Authoritative Standards
72-Hour Continuous Stress Test: Every machine manufactured by Sini Machinery undergoes a mandatory 72-hour continuous operational run under full speed prior to factory clearance to verify mechanical integrity.
Component Reliability: All electronic controls, switching gear, and pneumatic valves are sourced from leading global manufacturers to ensure high mean time between failures and immediate international parts availability.
Certifications: Fully compliant with the European CE Machinery Directive and manufactured under strict ISO9001 quality management tracking systems.
Export Packaging & Logistics Control
Surface Preservation: Heavy anti-rust oil is applied to all machined metal surfaces, followed by a heat-sealed, multi-layer vacuum moisture barrier.
Structural Tie-down: Heavy steel tension straps anchor the machine frame directly to reinforced runner bases, eliminating lateral movement inside shipping containers.
Enclosure: Fully enclosed within ISPM-15 certified, heat-treated export wooden cases designed for safe overhead crane and forklift handling.
FAQ
Q: What specific maintenance schedule is required to maintain the 70–90 cups per minute speed?
A: The automated closed-loop oil re-circulation system keeps primary internal cams continuously lubricated. Operators only need to check the oil level sight-glass daily, clear paper dust from the forming stations at the end of each shift, and grease the upper open-moving joints once a week.
Q: What is the exact technical changeover window for a different cup size?
A: A complete mold changeover involving bottom diameter, height, and top curling tooling takes an experienced plant technician 4 to 6 hours. Sini Machinery provides dedicated positioning jigs and engraved calibration scales on the machine frame to ensure rapid mechanical realignment.
Q: Can this machine process alternative bio-coatings or aqueous barrier coatings?
A: Yes. The PLC-controlled digital temperature modules allow independent adjustment of the heating profiles for individual stations. This allows you to process biodegradable coatings or water-based barrier coatings perfectly without scorching the material or reducing production speeds.
Q: How does the machine handle variations in paper moisture and stiffness from different paper mills?
A: The feeding gates, knurling pressures, and curling dies feature calibrated micrometer adjustment knobs. When switching between different paper weights, your setup technician can dial in the exact required mechanical pressure using our provided conversion tables.
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