Product Introduction 
The multi-functional coater integrates unwinding, coating, drying, laminating, and rewinding into a single continuous production line for laboratory use. The coating station adopts a modular design, allowing quick changeover between metering rod, blade, gravure, and film-transfer coating methods to suit different slurry rheologies. Both the coating roll (φ140 mm) and doctor roll (φ90 mm) are precision-ground hard-chrome-plated steel with runout ≤0.003 mm. The gap is manually adjusted via a precision lead screw and linear guide wedge system with pneumatic fast disengagement. The two-zone oven, 1.5 m in length, features 304 stainless steel interior walls, centrifugal circulation fans, and solid-state relay automatic proportional temperature control. Servo-driven unwind, coating, and rewind sections are centrally controlled via a touchscreen PLC, enabling precise setting of speed, tension, and temperature for reliable process development and scale-up.

Key Features 
Modular Multi-Coating Methods Supports metering rod, blade, gravure roll, and film-transfer coating, enabling flexible adaptation to water-based, solvent-based, and high-viscosity formulations.
Precision Roller System Coating roll φ140mm and doctor roll φ90mm, both made of steel with hard chrome plating and super-finished to a runout ≤0.003 mm for uniform coating quality.
Accurate Gap Control Manual precision lead screw with linear guide wedge for gap setting; pneumatic fast roll disengagement; includes PTFE dam plates and stainless steel drip tray.
Automatic Tension Control Magnetic powder brake tension controller or servo torque control (optional) for unwind; servo-driven active synchronous rewind for edge alignment within ±2.0 mm.
Two-Zone High-Efficiency Drying Two 1.5 m stainless steel ovens, 30-120°C ±2°C with centrifugal hot-air circulation, solid-state relay proportional temperature control, and 60 mm glass-fiber insulation.
Centralized HMI Control Touchscreen PLC system with human-machine interface for integrated setting and monitoring of speed, tension, temperature, and safety interlocks; includes emergency stop.
Active Synchronous Drive Servo motors on coating and winding sections operate in active synchronization, ensuring matched speed and stable tension across the process range.
Compact Pilot-Scale Structure Arch-type column frame, overall dimensions 4500×500×1700 mm, aluminum/stainless steel construction, exhaust hood with interlocked extraction fan.

Main Technical Specifications 

FAQ 
1. How do I switch between different coating methods? Which one suits my material best?
The coating heads are modular and can be quickly swapped. Metering rod is ideal for low-viscosity fluids and rapid sampling; blade coating suits a wide viscosity range, especially medium-high viscosities; gravure roll is best for precise coat weight control in batch process simulation. The choice depends on your slurry viscosity and target thickness; our technical team can provide tailored recommendations.

2. What is the mechanical speed range? Can it be customized for higher speeds?
The standard speed range is 0.5-5 m/min, suitable for most lab R&D and small pilot needs. Higher speeds to simulate industrial production conditions are available as a custom option. Please consult our sales engineers.

3. Does the drying system support solvent-based coatings?
Yes. The oven interior and air ducts are made of 304 stainless steel, equipped with explosion-proof centrifugal circulation fans and a forced exhaust system interlocked with the main drive. Exhaust ducting should be routed outdoors. It is recommended to install appropriate solvent vapor treatment equipment based on the specific solvents used.

4. What skill level is required to operate the machine?
The machine uses centralized touchscreen control with intuitive parameter setting. Operators require only brief training. We provide free installation guidance, operation training, and a detailed manual covering startup, parameter setup, safety interlocks, and daily maintenance.

5. How is tension controlled? Are unwind and rewind synchronized?
Unwind tension is automatically controlled by a magnetic powder brake controller (servo torque control optional); the rewind is actively driven by a servo motor synchronized with the coating unit speed. The system uses closed-loop program control to maintain stable web tension and neat edge alignment.

6. What are the footprint and installation requirements?
Overall dimensions are 4500×500×1700 mm (L×W×H), with additional space required for operation and maintenance. The user needs to provide a power supply (380V, approx. 6 kW), compressed air, and outdoor exhaust duct connections. We provide installation guidance service.

After-Sales Service 
Established in 2007 and with nearly two decades of experience, Shandong Annimet Instrument Co., Ltd. is a professional manufacturer integrating R&D, production, and sales of laboratory testing and sample preparation equipment. Quality is our foundation. We are your bridge from concept to reality. We deliver more than just instruments — we deliver confidence. This Multi-Functional Coater comes with a 12-month warranty and lifetime technical support. Our professional team offers 24/7 service response, free installation guidance, operation training, and coating process consultation. For any inquiries, please contact our customer service team; we are dedicated to providing comprehensive pre-sales, in-sales, and after-sales support. Hotline: 400-9933-057, Email: anmt_test@126.com.