Product Introduction 
This continuous dip coating machine uses a two-roll pond size-press as its core coating method, achieving precise sizing through a glue pond control system. The glue pond has a capacity of 300 ml and uses automatic feeding with an adjustable flow rate of 160-750 ml/min. The pressure roller is pressurized by air, with a maximum pressure of 0-0.6 MPa determined by the customer's air supply. The roller material is polyurethane (optional PTFE anti-stick roller) combined with a steel roller, and glue removal is performed by a PTFE scraper. The pressure roller supports electric heating from room temperature to 150°C with a heating power of 2.5KW×2, and the drive is provided by a servo motor. The unwinding system is passive, with an effective width of 500 mm and a maximum unwind diameter of ≤φ350 mm, using a 3-inch (Φ76 mm) air shaft. Tension is regulated by an automatically controlled magnetic powder clutch, and the frame is available in aluminum alloy profile or stainless steel welded construction. The drying system is a column arch-bridge type with a single-side pneumatic opening structure. The oven is 1.5 m long with 2 independent temperature zones, controlled at ±5°C. It uses electric heating tubes with centrifugal fan hot-air circulation, and a solid-state voltage regulator provides automatic proportional temperature control. The insulation layer is filled with 60 mm glass fiber, and the oven inner wall and inner air box are made of 304 stainless steel, with adjustable baffles at the hot-air circulation and cold-air ports. Temperature control uses independent PID instruments. The rewinding system also features dual-position quick-change gear chucks, effective width 500 mm, maximum diameter φ350 mm, a 3-inch automatic air shaft, servo motor drive, torque-controlled tension, and automatic/manual web guiding. The electrical control system uses centralized control with a touchscreen program control and HMI. The customer must provide a 380V power supply, air source, and exhaust duct.

Key Features 

Two-Roll Pond Size Press：Uses a nip-pond feeding method enabling both quantitative and continuous circulating sizing with precise glue control for paper, carbon paper, and nonwoven impregnation.
Precisely Adjustable Glue Feed：300 ml glue pond with automatic feeding and an adjustable flow rate of 160-750 ml/min to meet different pick-up requirements.
Heated Pressure Roller with Air Pressure：Pressure roller electrically heated from room temperature to 150°C at 2.5KW×2; pressure up to 0-0.6 MPa from air supply, with PTFE scraper for glue removal.
Complete Continuous Process：Integrates unwinding, glue pond control, drying, rewinding, tension adjustment, web guiding, and PLC control into a full continuous sampling line.
Dual-Zone Arch-Bridge Oven：1.5 m oven with 2 independently controlled zones from room temperature to 150°C±5°C, electric heating tubes with centrifugal fan hot-air circulation and solid-state proportional control.
Automatic Tension & Web Guiding：Unwinding uses an automatic magnetic powder clutch, rewinding uses torque control, and web guiding supports both automatic and manual modes for stable web transport.
Servo Drive & Quick Roll Change：Coating and rewinding are servo-driven, with dual-position quick-change gear chucks and 3-inch air shafts for efficient roll changes.
Stainless Steel Construction：Oven inner wall and inner air box in 304 stainless steel; guide rollers are hard aluminum alloy covered with PTFE; frame available in stainless steel welded or aluminum alloy profile.

Technical Specifications

FAQ
Q: What materials is this dip coating machine suitable for?
A: It is suitable for laboratory sampling of impregnation and double-sided sizing on flat paper, carbon paper, textile nonwovens, and various composite materials.
Q: Can the glue pick-up be precisely controlled?
A: Yes. The machine uses two-roll pond size press and nip-pond feeding, with an adjustable glue feed rate of 160-750 ml/min for both quantitative and continuous circulating sizing.
Q: Can the pressure roller be heated? What is the temperature range?
A: Yes. The pressure roller is electrically heated from room temperature to 150°C with a heating power of 2.5KW×2.
Q: How many temperature zones does the oven have and what is the control accuracy?
A: The oven is 1.5 m long with 2 independent temperature zones from room temperature to 150°C±5°C, using independent PID controllers and solid-state proportional control.
Q: Are unwinding and rewinding tension automatically controlled?
A: Unwinding tension is controlled by an automatic magnetic powder clutch, and rewinding uses torque control. Web guiding supports both automatic and manual modes.
Q: What does the customer need to prepare for installation?
A: The customer needs to provide a 380V power supply, an air source, and an exhaust duct. The main machine and control system are supplied and commissioned by us.

After-Sales Service
Thank you for your interest. Shandong Annimet Instruments Co., Ltd., founded in 2007, has been committed to the R&D, manufacturing and sales of quality testing instruments. Throughout our development, we have treated product quality as the lifeline of our enterprise and relentlessly pursued perfection in every instrument we build. Looking at the history of science and technology, we firmly believe that every product relies on the advancement of technology, every technological breakthrough originates from material exploration, every material discovery depends on process improvement, and every process improvement is supported by experimental means. Human creativity never falls short of ideas—what we need are tools to realize them. Annimet Instruments will continue to provide the means to bring your ideas and innovations to life. Should you have any questions, please feel free to contact our customer service team; we are fully dedicated to providing excellent pre-sale, in-sale and after-sale support.

Shandong Annimet Instruments Co., Ltd.
Address: Building 105, No.155, Xinmao Qilu Technology City, Zidong Avenue 299, Tianqiao District, Jinan City, Shandong Province, 250032, China
Tel: +86-400-9933-057 Fax: +86-531-88092218
Web: http://www.sdanmtyq.com E-mail: anmt_test@126.com