Fully Automatic Dual-Station Molding Machine

Fully Automatic Dual-Station Molding Machine

**1.**

Fully Automatic Dual-Station Molding Machine
A fully automatic dual-station molding machine is an advanced pulp molding system designed for high‑efficiency, continuous production of eco‑friendly packaging. Unlike traditional single‑station machines that require the entire forming, drying, and demolding process to complete before starting a new cycle, dual‑station systems feature two independent forming stations that operate alternately or simultaneously, dramatically increasing output while maintaining consistent product quality.

**2.**

Fully Automatic Dual-Station Molding Machine
The fundamental principle behind dual‑station technology is parallel processing. While one station performs forming and hot pressing, the second station can simultaneously undergo mold opening, product ejection, mold cleaning, and preparation for the next cycle. This seamless alternating operation eliminates idle waiting time, increasing productivity by up to 40‑50% compared to conventional single‑station configurations.

**3.**

Fully Automatic Dual-Station Molding Machine
The machine typically comprises a complete pulping system, a dual‑station forming system, an integrated hot‑pressing system, a vacuum system, a high‑pressure water system, an air compression system, and a PLC‑based control system. Raw materials such as sugarcane bagasse, bamboo pulp, wood pulp, wheat straw pulp, or recycled paper are processed into slurry, which is then fed to the forming stations for vacuum adsorption and shaping.

**4.**

Fully Automatic Dual-Station Molding Machine
In operation, the lower mold assembly enters the slurry tank, where vacuum suction draws fibers onto the mold surface to create a wet preform. After a precisely controlled suction time, the mold rises, and excess water is removed through initial dewatering. The wet product is then automatically transferred to the hot‑pressing station for final drying and densification.

**5.**

Fully Automatic Dual-Station Molding Machine
Key to the dual‑station concept is the ability to produce two different product shapes or thicknesses simultaneously in a single production cycle. Each station can be equipped with independent molds, allowing manufacturers to run two different product lines concurrently. This flexibility is ideal for operations producing varied packaging items, such as trays for electronics alongside food containers.

**6.**

Fully Automatic Dual-Station Molding Machine
The structural design of a typical dual‑station molding machine follows a central forming station flanked by left and right hot‑pressing stations. The forming station is positioned in the middle, with the hot‑pressing stations located on both sides. After forming, the wet preform is transferred alternately to the left or right hot press, enabling continuous production with minimal downtime.

**7.**

Fully Automatic Dual-Station Molding Machine
A Chinese patent (CN201721859705.4) describes a “two‑head output” pulp molding machine featuring forming molds in the center and hot‑pressing molds on both left and right sides. The top frame houses horizontal movement mechanisms that shuttle the forming upper mold between the two hot‑press stations, integrating forming, hot pressing, transfer, and stacking into a single machine.

**8.**

Fully Automatic Dual-Station Molding Machine
The ZFG‑1111 fully automatic pulp molding production line exemplifies this integrated architecture. Arranged in a linear configuration, it consists of one pulp forming machine, one hot‑press machine, one cutting machine, and one translation and turnover machine, utilizing a gantry and robotic arm system for automated product transfer. Key processes including forming, hot pressing, trimming, and stacking are all completed automatically.

**9.**

Fully Automatic Dual-Station Molding Machine
Dual‑station machines are available in two primary configurations: simultaneous operation and alternating operation. In simultaneous operation, both stations process products at the same time, effectively doubling output. In alternating operation, one station forms while the other hot‑pressed, balancing cycle times to achieve smooth, continuous production without bottlenecks.

**10.**

Fully Automatic Dual-Station Molding Machine
A patent for a “double molded pulp molding machine” describes a design incorporating a frame, longitudinal and transversal mechanisms, a forming and carrying module, and a pair of heat‑pressing molds. This configuration enables one forming process to feed two (or more) heat‑pressing and drying processes, dramatically improving overall equipment efficiency.

**11.**

Fully Automatic Dual-Station Molding Machine
The EAMC full‑automatic plant fiber molding machine utilizes a dual hot press mold solidifying device mode, consisting of a left hot press mold solidifying device, a suction‑filter forming device, and a right hot press mold solidifying device. This tripartite arrangement maximizes throughput by allowing one forming station to alternately serve two hot presses.

**12.**

Fully Automatic Dual-Station Molding Machine
For high‑end industrial packaging requiring precision and fine surface finishes, the HGHY Packing Tray Making Machine offers a two‑in‑one design for forming and hot pressing. It integrates trimming and punching operations, reducing production line downtime. Notably, it achieves a demolding angle of 0 degrees with an R0.3 radius for IP packaging, enabling tight‑fitting products without draft angles.

**13.**

Fully Automatic Dual-Station Molding Machine
The reciprocating double‑station forming machine from Guangzhou Nanya represents a popular semi‑automatic solution. Operating on the principle of vacuum adsorption, it uses waste newspapers and waste cartons as raw materials to produce packaging for electronics, shock‑proof inner packaging for industrial components, and paper brackets. Wet products are transferred manually to drying facilities.

**14.**

Fully Automatic Dual-Station Molding Machine
Advanced models integrate robotic handling for complete automation. Minjie Eco‑Machinery’s MJWTN121‑1010 fully automatic machine features a forming station, two hot‑press stations (left and right), a multi‑axis robot for product transfer, and in‑line trimming. The robot, equipped with specialized end‑of‑arm tooling, transfers wet preforms from the forming station to the hot presses and finished products to the trimming station.

**15.**

Fully Automatic Dual-Station Molding Machine
The MJWTN121‑1010 has a platen size of 950×950mm and is available with either thermal oil heating (2kW rated power) or electric heating (122kW). It measures 7,500×4,700×4,500mm, weighs 18.3 tons, and has an average daily output of 400‑600 kg. Forming uses a slurry dipping method, with servo drives for the forming station, pneumatic actuation for the hot‑press station (60 tons pressure), and hydraulic servo for trimming.

**16.**

Fully Automatic Dual-Station Molding Machine
For extremely high throughput, Minjie’s MJTPD‑40B eco‑friendly thermoforming production line incorporates 40 sets of molding units, each with dig forming, two hot‑press working stations, and in‑line trimming. With a main machine platen size of 1,200×1,000mm, it produces 35,000‑40,000 kg per day, making it suitable for large‑scale food packaging manufacturing such as meal boxes, soup bowls, and dish plates.

**17.**

Fully Automatic Dual-Station Molding Machine
The DZ110‑80 servo‑controlled pulp molding hot‑press machine from Shantou Aotuo Machinery specializes in producing packaging containers from plant fibers such as sugarcane bagasse, bamboo pulp, and wheat straw. With a forming area of 1,100×800×100mm, it operates in a fully automatic production mode, integrating wet pulp forming, hot‑press dehydration and shaping, trimming, and counting stacking into a single continuous process.

**18.**

Fully Automatic Dual-Station Molding Machine
The Dwellpac Intelligent Dual‑Station Pulp Molding Machine emphasizes user‑friendly operation and energy efficiency. Its dual‑station design allows two simultaneous molding processes, dramatically increasing output while reducing production time. One operator can run both stations simultaneously, significantly improving labor efficiency and reducing labor costs.

**19.**

Fully Automatic Dual-Station Molding Machine
The Dwellpac machine features a human‑machine interface with simple button menus, making it easy to learn and use. It utilizes Inovance’s CAN LINK bus control system for stable communication and has independent parameter storage capable of storing up to 1,000 sets of data. This allows quick changeover between different product specifications without reprogramming.

**20.**

Fully Automatic Dual-Station Molding Machine
Dual‑station molding machines are available with different drying configurations. The INMACO MT/FP‑80‑2 pulp thermoforming machine features two drying stations and produces up to 60 kilograms per hour. With a table size of 1,100×900mm and servo‑hydraulic pressing force of 100 kN, it achieves accurate dimensions and a smooth, dust‑free surface on both sides of the product without requiring a bulk dryer.

**21.**

Fully Automatic Dual-Station Molding Machine
The Double‑Cylinder Double‑Station Feeding Forming Machine from Zhiyuan Pulp Molding Equipment is a high‑performance solution for industrial‑scale production of eco‑friendly packaging. Its core innovation lies in the synchronized movement between two independent forming stations, each equipped with vacuum‑forming molds and servo‑driven transfer mechanisms, enabling simultaneous shaping of two distinct product configurations or thicknesses.

**22.**

Fully Automatic Dual-Station Molding Machine
This machine features a PLC‑controlled interface with touch‑screen HMI integration, allowing operators to fine‑tune critical parameters such as suction time, drying cycles, and mold alignment. Real‑time performance metrics can be monitored, and settings adjusted without manual intervention, reducing waste and improving consistency. The adjustable vacuum system ensures precise pulp distribution across molds.

**23.**

Fully Automatic Dual-Station Molding Machine
Automated product handling is achieved through a servo motor and screw guide rail system, which automatically transfers molded products to the receiving platform, reducing manual labor and enhancing cycle speed. The robust build quality, ease of maintenance, and ability to reduce dependency on manual labor have been consistently praised by users.

**24.**

Fully Automatic Dual-Station Molding Machine
Foshan Shunde Zhiyuan Pulp Molding Equipment Co., Ltd., founded in 2004, specializes in double‑cylinder double‑station forming machines, servo oil pressure shaping machines, servo oil pressure edge trimming machines, and intelligent pulp making systems. The company exports 21‑30% of its production, serving markets in Vietnam, the Philippines, Malaysia, and Thailand.

**25.**

Fully Automatic Dual-Station Molding Machine
Zhiyuan has successfully exported its double‑cylinder dual‑station forming machine to Vietnam, where it is being used to produce egg cartons, trays, and packaging inserts. The dual‑cylinder structure enables the simultaneous operation of two workstations, significantly increasing the output of molded pulp products while ensuring consistent quality for each product.

**26.**

Fully Automatic Dual-Station Molding Machine
An installation in Anhui Province, China, demonstrates the production efficiency gains of the double‑cylinder double‑station forming machine. In this workshop, multiple machines are arranged and running efficiently, with the unique two‑cylinder two‑station design allowing two different processes to be carried out at the same time, greatly shortening the product molding cycle.

**27.**

Fully Automatic Dual-Station Molding Machine
The HM‑ZX1310 two‑stage three‑station pulp molding machine from Hongming represents an alternative configuration. With a template area of 1,300×1,000mm, it uses direct hot‑pressing drying forming technology, eliminating the need for an oven. After hot pressing, a handling robot transfers the formed product to the cutting machine, where a single‑axis manipulator places the finished product onto an assembly line.

**28.**

Fully Automatic Dual-Station Molding Machine
The HM‑ZX1310 features a steel beam structure using high‑density carbon steel that has been welded and annealed for enhanced stability. All parts in direct contact with wet pulp are made of stainless steel, including the forming platform and storage barrel. The upper connecting platforms are driven by servo motors to ensure fast and stable operation.

**29.**

Fully Automatic Dual-Station Molding Machine
For thick products requiring enhanced structural strength, the WA03 reciprocating double‑suction double‑hot‑press forming machine from Deluxe Technology incorporates cold extrusion functionality. It can produce products up to 2.8 mm thick with a zero‑degree demolding angle and corner radius ≥0.5 mm, breaking through the thickness limitations of traditional premium packaging. Daily output is 400‑700 kg.

**30.**

Fully Automatic Dual-Station Molding Machine
The WA03 features a two‑stage hot‑press station that shortens production cycle times and improves efficiency. The entire machine is servo motor driven, ensuring high positioning accuracy and smooth operation. It includes an interlock safety system, alarm systems on all safety doors, and a PLC touch screen for easy operation and maintenance.

**31.**

Fully Automatic Dual-Station Molding Machine
Dual‑station machines are particularly well‑suited for producing high‑grade molded fiber packaging with slight draft angles. The HGHY Packing Tray Making Machine specializes in crafting premium, eco‑friendly molded fiber packaging for mobile phones, daily necessities, digital products, cosmetics, and premium gift boxes. Daily capacity reaches 80,000‑90,000 lids based on 80/90mm cup lid production.

**32.**

Fully Automatic Dual-Station Molding Machine
Key technical parameters for a typical dual‑station forming machine include an outer dimension of approximately 14,000×3,400×6,100mm, weight around 30 tons, template size of 1,260×960mm, and production capacity of approximately 600 kg per day. Forming and hot‑press vertical movements are hydraulically driven, while the hot‑press lower mold uses servo motors for precise lateral movement.

**33.**

Fully Automatic Dual-Station Molding Machine
The hot‑press mold translation repeat accuracy can be maintained at ≤0.06 mm using servo motor and screw rod systems, ensuring consistent product quality across all cycles. Minimum closed height of the hot‑press mold is 120 mm, with closed height adjusted based on displacement sensor feedback. Maximum product height is typically ≤130 mm.

**34.**

Fully Automatic Dual-Station Molding Machine
Heating is typically achieved through electric heating elements (192 kW for a dual‑station configuration, with 2 kW × 12 × 4 × 2 heating rods). A Siemens PLC controller provides centralized control, with a 10‑inch color touch screen from Weinview for operator interface. Hot‑press clamping force can reach 40 tons, with total rated power of approximately 264 kW.

**35.**

Fully Automatic Dual-Station Molding Machine
For larger platforms, a “large‑platen” dual‑station machine is available with a template size of 1,260×1,000mm and weight of approximately 33 tons. Production capacity remains approximately 600 kg per day, with the same hydraulic actuation and servo motor specifications as the standard model. This larger platen accommodates oversized products or higher cavity counts per cycle.

**36.**

Fully Automatic Dual-Station Molding Machine
The reciprocating double‑station feeding forming machine from Qingyuan Keding Machinery has equipment dimensions of 3,100×2,160×3,823mm and weighs 2 tons. The template size is 800×600mm (customizable), with lifting cylinders of Ø125mm or Ø160mm and a removal device driven by cylinder or servo motor. Daily production exceeds 700 kg based on 12 hours of operation and a product weight of 400g per mold.

**37.**

Fully Automatic Dual-Station Molding Machine
Dual‑station molding machines support a wide range of eco‑friendly materials. Sugarcane bagasse, with an average fiber length of 1.47‑3.04mm, offers moderate strength and toughness and is currently the most suitable raw material for pulp molding products. It is widely used for lunch boxes, tableware, high‑end mobile phone holders, and cosmetic packaging.

**38.**

Fully Automatic Dual-Station Molding Machine
Bamboo pulp is another excellent choice, valued for being odorless, naturally antibacterial, antimicrobial, and hypoallergenic. Bamboo is a fast‑regenerating raw material, making it highly sustainable and environmentally friendly. Wood pulp, derived from coniferous or hardwood trees, is also commonly used, offering versatility across different product categories.

**39.**

Fully Automatic Dual-Station Molding Machine
The dual‑station machine’s ability to handle multiple pulp types makes it a flexible investment for manufacturers serving diverse markets. Whether using recycled paper for cost‑effective industrial packaging, bagasse for food‑grade tableware, or bamboo for premium cosmetic trays, the same equipment can be reconfigured through mold changes and parameter adjustments.

**40.**

Fully Automatic Dual-Station Molding Machine
The machine’s vacuum system ensures precise pulp distribution across molds, resulting in strong, dimensionally stable components suitable for shock‑absorbing applications. The adjustable suction time allows operators to fine‑tune the dry‑wet ratio of the preform, achieving uniform thickness and optimal moisture control—key factors in producing durable, lightweight paper‑based containers.

**41.**
After the wet product is formed, it is automatically transferred to the hot‑press station. Hot‑press molds apply high temperature (typically 160‑220°C) and significant hydraulic pressure (15‑60 tons) to densify the fiber, evaporate residual moisture, and activate natural lignins. The lignins melt and rebond under heat, creating a strong, water‑resistant structure without any synthetic chemical adhesives.

**42.**
The two‑stage hot‑press configuration found on many dual‑station machines serves a dual purpose. The first stage performs initial dewatering and pre‑shaping, while the second stage completes drying and surface smoothing. This staged approach reduces overall cycle time and ensures consistent product quality across all cavities.

**43.**
Integrated trimming is a key feature of advanced dual‑station machines. After hot pressing, the product is automatically transferred to a trimming station where a custom die cuts away flash (excess fiber edges) with high precision. Trimming pressure can reach 60 tons, ensuring clean, burr‑free edges. Vacuum systems immediately remove dust and particles, leaving a professional finish.

**44.**
For applications requiring the highest precision, the HM‑ZX1310 uses direct hot‑pressing drying forming technology, eliminating the need for a separate oven. After hot pressing, the die exits, and a handling robot transports the semi‑finished product to the cutting machine. After cutting, a single‑axis manipulator places the finished product onto an assembly line, creating a fully automated production cell.

**45.**
Robotic integration is increasingly common in dual‑station systems. Multi‑axis robots equipped with specialized end‑of‑arm tooling handle wet preform transfer from the forming station to the hot press, finished product removal, and transfer to trimming stations. This reduces manual intervention, lowers labor costs, and improves overall product consistency.

**46.**
The use of robots also enables complex transfer geometries that would be difficult or impossible with fixed mechanical transfer systems. For deep‑draw products or those with intricate features, robots can approach the mold from optimal angles, ensuring secure gripping and precise placement without damaging the wet preform.

**47.**
Energy efficiency is a significant advantage of modern dual‑station machines. Advanced models incorporate integrated infrared drying combined with heat pump waste heat recovery, boosting drying efficiency by over 50% and reducing power consumption to below 1,800 kWh per ton—a 40% reduction compared to traditional equipment.

**48.**
The use of servo motors throughout the machine contributes to energy savings. Unlike pneumatic systems that consume energy continuously, servo motors draw power only during motion, with regenerative braking returning energy to the power supply. For the WA03 machine, the entire unit is servo motor driven, ensuring high positioning accuracy while minimizing energy consumption.

**49.**
Dual‑station molding machines are ideal for a wide range of applications. In electronics packaging, they produce protective paper trays for smartphones, laptops, tablets, and other digital devices. In food and beverage packaging, they manufacture disposable trays, egg cartons, cup holders, and takeaway containers. In industrial packaging, they create shockproof inner packaging for fragile items like glass, ceramics, and medical equipment.

**50.**
The versatility of dual‑station machines extends to high‑value applications such as premium gift boxes, cosmetic packaging, luxury wine packaging, and cultural and creative products. Their ability to produce products with slight draft angles, fine surface finishes, and consistent wall thickness makes them suitable for brands that demand both sustainability and aesthetics.

**51.**
The Chinese national standard GB/T 42943‑2023 specifies the general principles for pulp molding products, covering requirements, inspection rules, marking, packaging, transportation, and storage. This standard applies to the production, inspection, and sale of pulp molding products (excluding those for food contact). Dual‑station machines are designed to comply with such standards.

**52.**
When selecting a dual‑station molding machine, key factors to consider include daily production capacity (typically 400‑700 kg/day for mid‑range models, up to 40,000 kg/day for large‑scale lines), platen size (ranging from 800×600mm to 1,260×1,000mm or larger), maximum product height (typically ≤130mm), and hot‑press clamping force (40‑60 tons).

**53.**
Installation requirements include a level foundation, 380V/50Hz three‑phase power supply (or customer‑specified voltage), compressed air connections, and adequate ventilation for the drying system. The machine’s compact footprint—as small as 3,100×2,160×3,823mm for reciprocating models—allows installation in smaller workshops or integration into existing production lines.

**54.**
Maintenance of dual‑station machines is facilitated by modular design. Key components such as heating plates, hydraulic pumps, and transfer mechanisms are accessible and designed for quick replacement. Regular maintenance includes cleaning molds with compressed air, inspecting the vacuum and air compression systems, checking for wear on seals and gaskets, and periodic reapplication of non‑stick coatings to mold surfaces.

**55.**
The return on investment for a fully automatic dual‑station molding machine is compelling. Reduced labor requirements (often from 8‑10 workers per shift for manual lines to just 2‑3 operators for automated dual‑station systems), lower energy consumption, and increased production efficiency combine to deliver rapid payback. For high‑volume packaging operations, the ability to run continuous production with minimal downtime dramatically improves unit economics.

**56.**
Leading manufacturers of dual‑station pulp molding machines include Foshan Shunde Zhiyuan Pulp Molding Equipment Co., Ltd. (founded 2004, specializing in double‑cylinder double‑station forming machines), Minjie Eco‑Machinery Technology Co., Ltd. (offering MJWTN121‑1010 and MJTPD‑40B models with robotic integration), HGHY (ZJWD‑9575 packing tray machine with zero‑degree demolding angle), and Deluxe Technology (WA03 reciprocating double‑suction double‑hot‑press machine for thick products).

**57.**
The future of dual‑station molding technology lies in further integration with Industry 4.0 concepts. Sensors embedded in the machine monitor temperature, pressure, vacuum, and cycle times in real time, feeding data to central control systems. AI algorithms optimize process parameters based on historical performance and current conditions, reducing scrap rates and improving overall equipment effectiveness.

**58.**
Digital twin technology is being applied to dual‑station machines, allowing operators to simulate production runs, test mold designs, and optimize process parameters in a virtual environment before physical production begins. This reduces mold development time, minimizes trial runs, and accelerates time‑to‑market for new products.

**59.**
In summary, the fully automatic dual‑station molding machine represents a significant advancement in sustainable packaging manufacturing technology. By enabling two independent forming stations to operate alternately or simultaneously, these machines deliver up to 40‑50% higher productivity than single‑station alternatives. Integrated hot pressing, trimming, robotic transfer, and intelligent control systems create a continuous production cell that minimizes manual intervention, reduces energy consumption, and maintains consistent product quality.

**60.**
As global demand for eco‑friendly packaging continues to surge and regulations against single‑use plastics tighten, dual‑station molding machines will play an increasingly critical role in enabling manufacturers to meet production targets while upholding environmental responsibility. Whether for electronics packaging, food containers, cosmetic trays, or industrial cushioning, the fully automatic dual‑station molding machine offers a proven, scalable solution for the sustainable packaging industry.