Product Details
Company Profile

Square Bucket Spin Coating Machine with Customizable Fixture High Transfer Efficiency and Multi-Station Operation

Product Overview

This spin coating system is specifically engineered for applying uniform, high-performance functional coatings (water-resistant, oil-resistant, barrier coatings) to the internal surfaces of square bucket molded pulp products. Using centrifugal force technology and precision dispensing, it ensures seamless, pinhole-free film coverage even on complex 3D interior geometries including deep corners and sidewalls.

Working Principle

Square buckets are securely held on custom fixtures on the rotary indexing table. At each spin station, precision dosing pumps dispense coating material onto the product interior, followed by high-speed spinning that evenly spreads the coating across complex interior geometries. Coated products then pass through multi-stage drying tunnels to achieve a uniform barrier film with minimal material waste (>90% transfer efficiency).

The system is available in customizable configurations ranging from single-station R&D units to fully automated high-speed production lines. Available in rotary indexing, modular robotic, and integrated drying configurations.

Technical Specifications

Parameter	Specification / Range	Customization Options
Model Series	OSM-XT Series	Custom model designation available
Number of Work Stations	1, 4, 6, 12, or 24 positions	Customizable station count
Production Capacity	5-35 cycles/min (360-1,200 pcs/hr)	Customizable speed profiles
Applicable Bucket Size (L×W×H)	Up to 400×300×150mm (standard)	Customizable fixture dimensions
Spin Speed Range	100 - 8,000 RPM (programmable)	Customizable max speed up to 15,000 RPM
Coating Thickness	5-25 gsm (dry) / 10-100 μm	Customizable thickness via volume + speed
Coating Uniformity	>95% thickness consistency	Optimized via multi-zone customization
Coating Method	Precision metering pump + spin	Customizable pump type per viscosity
Coating Transfer Efficiency	>90% (closed-loop system)	--
Drying/Curing Method	IR pre-dry + hot air tunnel / UV curing	Customizable drying technology
Temperature Range	Ambient - 150°C (adjustable)	Customizable per coating type
Control System	PLC with 7-10" HMI touchscreen	Customizable protocols (PROFIBUS, Ethernet, IoT)
Recipe Storage	100+ product recipes	Customizable recipe library
Power Supply	380V / 50Hz / 3-Phase (standard)	Customizable to 220V / 60Hz
Total Power Consumption	5-120 kW (configuration-dependent)	Depends on station count + drying load
Compressed Air	0.6-0.8 MPa, clean & dry	--
Machine Weight	110 - 3,000 kg (varies by model)	Configuration-dependent
Safety Standards	CE, ISO9001 compliant	Additional certifications available
Main Construction Material	304 Stainless Steel (frame), food-grade fluid paths	Customizable material upgrades

Applications

Food Packaging: Square molded pulp buckets, containers, and food trays requiring waterproof/oil-proof PFAS-free barrier coatings
Disposable Tableware: Pulp-molded square bowls, soup containers, lunch boxes with internal coating
Agricultural Containers: Coated square pots and horticultural containers
Industrial Packaging: Square molded pulp packaging requiring barrier protection
Premium Packaging: High-end retail packaging needing superior surface finish and protection
Material Compatibility: Compatible with aqueous dispersions (PE, PLA, bio-based barriers), PFAS-free solutions, and various coating viscosities

Key Features

Precision Coating: Individual servo-controlled dosing and spinning guarantee consistent coating weight and thickness on square bucket interiors
Uniform Coverage: Centrifugal force ensures seamless, pinhole-free coverage even on deep corners and sidewalls
High Transfer Efficiency: >90% material utilization, minimizing waste and reducing VOC emissions
High Efficiency: Multi-station continuous operation with production capacity up to 1,200 pcs/hr
Smart Control: PLC system with HMI touchscreen for recipe management and real-time monitoring
Quick Changeover: Modular tooling design allows for fast product changeover between different bucket sizes
Rapid Drying Cycle: Integrated multi-stage drying tunnel speeds up production
Robust & Hygienic: 304 Stainless Steel construction, easy to clean and maintain
Energy Saving: 30% less energy consumption than conventional methods
Data Logging: Full process parameter recording for quality traceability and compliance

Customization Options

Customization Area	Options
Station Count & Layout	Customizable from 1 to 24+ stations to match production capacity
Fixture / Chuck Design	Custom-machined fixtures for specific square bucket geometries (vacuum, mechanical clamp, custom nests)
Spin Speed & Acceleration	Customizable speed profiles for different coating materials
Dispense System	Customizable pump type and capacity for different coating viscosities
Drying Method	Customizable -- IR, hot air, UV-LED, NIR, or combination
Drying Tunnel Length	Customizable based on coating curing profile
Temperature Range	Customizable up to 200°C for specific coatings
Control System	Customizable automation protocols and data logging features
Voltage/Frequency	Customizable to local electrical standards
Integration	Customizable I/O interfaces for seamless integration with existing lines
Automation Level	Semi-automatic to fully automatic (customizable)
Brand Options	Electrical/pneumatic component brands per client request

Support & Services

Service	Description
Project Consulting	Feasibility analysis and process solution design
Sample Testing	Free sample testing and process development
Installation & Commissioning	On-site setup guidance and operator training by experienced engineers
Warranty	12 months standard warranty (customizable extension available)
Remote Support	24/7 remote troubleshooting and maintenance support
Spare Parts	Fast delivery of genuine spare parts (nozzles, pumps, belts, etc.)
Software Updates	Regular software upgrades and technical improvements
Operator Training	Comprehensive training on proper usage and safety
Custom Design	Co-engineering service for fully customized coating solutions

Packing & Shipping

Item	Details
Packaging	Heavy-duty export wooden box with waterproof protection
Internal Protection	Components securely fastened; sensitive electronics shock-mounted
Documentation	Complete shipping documents (packing list, invoice, etc.)
Delivery Terms	FOB / CIF / Door-to-door logistics (customizable)
Standard Delivery Time	30 - 45 working days
Customized Delivery Time	40 - 60 days after final specification confirmation

Frequently Asked Questions

Q: What types of square buckets can this machine handle?
A: The system handles various square/rectangular molded pulp buckets and containers. Fixtures are customizable to match your specific bucket geometry, including size, depth, and corner radius.

Q: Can the line handle different bucket shapes in the same batch?
A: For optimal efficiency, it is designed for running batches of the same product. Quick-change customizable fixture systems are available to reduce changeover time between different products.

Q: What is the typical coating thickness range?
A: Typical dry coating weight is 5-25 gsm, with thickness accuracy within ±1%. Coating thickness can be customized by adjusting dispensed volume and spin speed parameters.

Q: How is coating thickness controlled?
A: Thickness is controlled by the precise combination of dispensed volume, spin speed, and spin time. These parameters are digitally set and repeatable within each recipe on the PLC system.

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Categories	Pulp Molding Coating Machine
Payment Terms:	T/T
Packaging type:	Case,Cartons,Film,Wooder package,Bags
Supply Ability:	Negotiation
Warranty:	1 Year
Model Number:	Specification
Condition:	New
MOQ:	1 Set
Delivery Time:	30 Working Days
Automatic grade:	Automatic,Semi-Automatic,manual,Other
Price:	Negotiation
Packaging material:	Wood
Packaging Details:	Wood Packaging
Certification:	ISO9001
After-sales service provided:	Engineers available to service machinery overseas,Video technical support,Online support,Overseas third-party support available,Field installation
Place of Origin:	CHINA
Type:	Coating Machine,Coating Production Line,Printing Paper UV Varnish Coating Machine,Other,1320mm
Brand Name:	OSMANUV
Voltage:	220V,380V,380V/220V,220V/380V,380V/50HZ