You're planning a disposable cup production line, and the paper specification matters as much as the machine itself. Single-side PE coated paper is cost-effective, widely available, and suitable for hot drink cups. But not every cup forming machine handles it with the same efficiency. A Paper Cup Machine designed specifically for single-side polycoated stock delivers consistent sealing, precise forming, and reliable output. This article explains what makes single-side coated paper different, how ultrasonic sealing and Leister heating work together to bond the cup body and bottom, and what to verify before specifying a forming machine for your production targets.
Q: What paper weight and coating type does this machine accept?
A: The machine is designed for 150-350 GSM single/double PE coated paper. Single-side PE coating means the polyethylene film is applied to one side of the paperboard—the side that becomes the inside of the cup, providing the liquid barrier. This is the most common specification for hot drink cups, where the outside surface remains paper for printing and gripping.
Q: What cup sizes can be produced?
A: The machine produces cups from 2.5-10oz (75-300ml) with mold exchangeable capability. Cup dimensions include top diameter of 55-90mm, height of 50-100mm, and bottom diameter of 55-75mm. Changing cup sizes requires changing the mold, a straightforward process on this platform.
Q: What is the production capacity and power consumption?
A: The machine runs at 110-120 pcs/min with an average power consumption of 8KW. Voltage options include 220V/380V 50HZ 3Phases. Air supply requirement is 0.4MPa air pressure with 0.4cbm/min air output.
Single-side PE coated paper presents a specific challenge: only one surface has the heat-sealable polyethylene layer. The sealing process must activate that coating without burning the uncoated paper side. If the heat is too low, the PE doesn't fully melt and the seal fails. If it's too high, the paper scorches and the cup looks defective. The machine addresses this with two Switzerland Leister heaters—one for the cup sleeve and one for the bottom. These heaters deliver precise, controllable heat that softens the PE coating just enough for a reliable bond. After heating, the cup bottom is sealed by an embossing and sealing device that applies pressure to complete the bond. The side seam of the cup sleeve is bonded using ultrasonic waves. During high-speed operation, the two sides of the paper are preheated by the Leister heater, then ultrasonic energy is applied to create a molecular bond at the seam. Ultrasonic sealing is faster and more consistent than adhesive-based methods, and it eliminates the risk of glue contamination in the cup. The machine adopts twice curling rather than single curling. Compared with once curling, twice curling is more suitable for high-speed machines and makes the cup curling more compact and better-looking. The first curling pass rotates the top edge, and the second pass heats and forms it, resulting in a finished rim that's smooth and uniform.
Ultrasonic sealing uses high-frequency mechanical vibrations to create heat at the interface between two surfaces. When applied to the cup sleeve, the vibrations cause the PE coating on the paper to soften and fuse, forming a molecular bond without any glue. This process is faster and more consistent than adhesive-based sealing, and it eliminates the risk of glue contamination inside the cup. For food and beverage applications, that's a significant safety advantage.
Adhesive residue in a cup is a contamination risk. Even food-grade glues can leave a taste or odor, and inconsistent application can create weak seals that leak. Ultrasonic sealing eliminates both concerns. The bond is created from the cup's own coating, so there's no foreign material introduced. For coffee shops, tea houses, and beverage brands, this is a quality and safety advantage.
| Parameter | Specification |
|---|---|
| Model | MG-C600M |
| Paper Cup Specification | 2.5-10oz (75-300ml) (mold exchangeable) |
| Top Diameter | 55-90mm |
| Height | 50-100mm |
| Bottom Diameter | 55-75mm |
| Paper Specification | 150-350 GSM single/double PE coated paper |
| Production Capacity | 110-120 pcs/min |
| Voltage | 220V/380V 50HZ 3Phases |
| Average Power | 8KW |
| Air Supply | 0.4MPa, 0.4cbm/min |
| Total Weight | 2400KG |
| Dimensions | 2350×1450×1700mm |
The machine uses two Switzerland Leister heaters for cup body and bottom sealing. A PLC control system manages the entire cup forming process. Panasonic photoelectric detection system monitors for abnormalities and triggers an alarm with automatic stop-cup discharge through the bottom paper waste discharge device. The bottom paper is controlled by servo motor for stable feeding, and the bottom paper conveying device includes a brake to eliminate paper interruption during production.
The machine uses a gear drive with longitudinal axis to resolve problems of chain shaking and instability. An automatic lubrication system reduces wear on machine parts and provides effective cooling. The whole machine is equipped with 7 sensors to detect malfunctions and ensure high-quality output.
Single-side polycoated paper is the standard specification for hot drink cups used in coffee shops, tea houses, and fast food restaurants. The machine is mainly used in the paper cup manufacturing industry, including fast food shops, coffee shops, beverage shops, restaurants, and supermarkets. It produces cups for hot drinks, cold drinks, juice, milk tea, ice cream, and other food and beverages. For manufacturers supplying these markets, a machine that handles single-side coated paper efficiently is the foundation of reliable production. Single-side PE coated cups are the standard for hot beverages. The PE coating on the inside provides the liquid barrier, while the uncoated outside allows for high-quality printing and a comfortable grip. The MG-C600M produces cups in the 2.5-10oz range, covering espresso cups through medium coffee and tea sizes. The same machine handles cold drink and ice cream cup production with the appropriate mold changes. The 150-350 GSM paper specification covers the range of board weights used in these applications. The finished product can be customized, allowing manufacturers to produce branded cups for coffee chains, promotional cups, and private-label products.
Single-side PE coated cups are the standard for hot beverages. The PE coating on the inside provides the liquid barrier, while the uncoated outside allows for high-quality printing and a comfortable grip. The MG-C600M produces cups in the 2.5-10oz range, covering espresso cups through medium coffee and tea sizes.
The same machine handles cold drink and ice cream cup production with the appropriate mold changes. The 150-350 GSM paper specification covers the range of board weights used in these applications.
The finished product can be customized, allowing manufacturers to produce branded cups for coffee chains, promotional cups, and private-label products. The machine's precision sealing and forming ensure that printed graphics remain aligned and the cup structure is consistent.
Q: How does the machine handle different cup sizes?
A: Cup size changes require mold exchange. The machine supports 2.5-10oz cups with mold exchangeable capability. The retractable knife design makes even wrinkles at the bottom of the cup, leading to low leakage and long-time use. It also eliminates the need to disassemble the entire punching holder for changing molds, saving replacement time.
Q: What maintenance does the machine require?
A: The machine uses an automatic lubrication system that reduces wear and provides cooling. Routine maintenance includes cleaning components, removing greasy dirt from paper, die, and roller, and maintaining a fixed cleaning schedule. The automatic paper fan input conveyor saves labor costs and shortens the number of paper placements.
Q: How does the machine ensure quality during production?
A: The machine uses 7 sensors to detect malfunctions. The Panasonic photoelectric detection system alarms when there is an abnormality, and the stop cup is automatically discharged through the bottom paper waste discharge device. The bottom paper is controlled by servo motor for stable feeding, and the bottom paper conveying device includes a brake to eliminate paper interruption.
Q: Can the machine produce double PE coated cups as well?
A: Yes. If producing cups with double PE coated paper, the machine can be pre-installed with anti-drop cups and water circulation cooling devices. An industrial chiller is required for this configuration and must be purchased additionally.
A Paper Cup Machine designed for single-side polycoated paper with 110-120 pcs/min output and ultrasonic sealing is the practical choice for manufacturers producing hot drink cups, coffee cups, and disposable beverage containers. The Single Side Polycoated Paper Cup Making Machine from Mingguo delivers 150-350 GSM single/double PE coated paper compatibility, 2.5-10oz cup size range with mold exchangeable capability, 110-120 pcs/min production capacity, Switzerland Leister heaters for precise sealing, ultrasonic sealing for the cup sleeve, PLC control with Panasonic photoelectric detection, and twice curling for a compact, finished rim.
Whether you're supplying coffee shops, fast food chains, or beverage brands, this Paper Cup Machine offers the speed, precision, and paper compatibility that disposable cup manufacturing demands. With automatic lubrication, gear drive, and servo-controlled bottom paper feeding, it's built for reliable, consistent production without glue-related issues.
Contact Mingguo for a cup forming machine configuration assessment → their team can help you select the right model, mold sizes, and optional features for your specific paper specifications and production targets. Get a machine that seals cups cleanly and reliably—without a drop of glue.
Paper cups specifications:
200 pcs/min
4-16oz(100-450mI) (mold exchangeable)
Paper cups specifications:
4-16oz (can be customized by max.26oz)
(100-450ml)(mold exchangeable)
Top:55-105mm
Height:60-135mm
Bottom:55-75mm
Paper cups specifications:
(100-350ml)(mold exchangeable)
Top: 55-90mm
Height: 60-110mm
Bottom: 40-65mm

