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Stucco-Ready XPS Board Knife Coating Line – Customizable Width (600-2400mm) for Polymer & Cementitious Mortars
Product Overview
This customizable XPS board knife coating line is designed for applying precise, uniform layers of polymer-modified mortar, cementitious coatings, acrylic renders, primers, or adhesives onto XPS (extruded polystyrene) rigid foam boards. Available in stucco-ready mortar, high-precision primer/leveling, and double-side laminating configurations.
Unlike spray or roller coating, the knife-over-roll method achieves >95% transfer efficiency with minimal material waste, eliminating overspray - especially critical for solvent-sensitive XPS substrates. Excess high-viscosity coating is recirculated back to the supply tank. The system is fully customizable in coating width, thickness range, blade type, board thickness accommodation (10-200mm), and XPS density handling (25-50 kg/m³).
Working principle: XPS boards are fed through a precision backing roller, where a doctor blade (comma blade or straight scraper) applies a controlled wet coating layer. The coated boards then pass through a low-temperature drying tunnel (≤60°C to prevent foam deformation), followed by cooling and stacking. The system effectively fills surface pores, hides foam texture, and creates a smooth base for EIFS exterior insulation finishing systems, decorative renders, or protective layers.
Technical Parameters
Parameter
Stucco-Ready Mortar Model
High-Precision Primer Model
Double-Side Laminating Model
Max coating width (customizable)
Up to 2400 mm
Up to 2400 mm
Up to 2000 mm
XPS board thickness range
10 - 200 mm
3 - 80 mm
10 - 120 mm
Coating method
Knife-over-roll
Knife-over-roll
Dual-head scraper
Wet coating thickness (customizable)
0.3 - 5.0 mm (±0.05mm)
0.5 - 10 mm (±0.1mm)
0.3 - 5.0 mm
Coating uniformity
±3% across full width
±3% across full width
±3% across full width
Coating speed (customizable)
2 - 30 m/min
1 - 20 m/min
2 - 15 m/min
Material transfer efficiency
95% - 98%
95% - 98%
92% - 96%
Coating viscosity range
2000 - 25000 cP
100 - 100,000 cP
2000 - 25000 cP
Drying method
IR + low-temp air (≤55°C)
Hot air multi-zone (≤60°C)
Low-temp air + IR
Blade type (customizable)
Round-edge / Straight bevel
Hardened steel / Tungsten carbide
Straight bevel
Backing roller material (customizable)
Silicone soft / EPDM hard
Rubber-coated / PU
Silicone / EPDM
Control system
PLC + HMI touchscreen
PLC + HMI touchscreen
PLC + HMI touchscreen
Power supply
380V, 50/60Hz, 3-phase
380V, 50/60Hz, 3-phase
380V, 50/60Hz, 3-phase
Typical application
EIFS base coat, anti-skid coating
Primer, smooth leveling coat
Adhesive + primer composite board
Applications
Exterior wall insulation (EIFS): Base coat adhesive mortar onto XPS insulation boards for external facade systems
PLC control with recipe storage: One-touch settings for different coating types; data logging and remote diagnostics capability
Support and Services
Free process consultation - send your XPS boards and coating material for trial coating
Custom layout design for your production floor
On-site installation and commissioning (customizable support packages)
Operator training program included
Remote troubleshooting via video call, IoT monitoring, or network central controller
18-month warranty on main machine, 12-month on electrical parts
Spare parts availability from regional warehouses
Lifetime technical support via phone, email, or chat
Packing and Shipping
Packing: Anti-rust film + reinforced plywood/wooden case for main body and control cabinet; foam padding for fragile components
Standard model lead time: 30-45 days after order confirmation
Custom configuration lead time: 30-60 days (longer for custom widths or dual-head configurations)
Shipping: FOB Shanghai / CIF by sea, air, or rail
Customizable: Export crating, custom labeling, destination port documentation
Frequently Asked Questions
Q1: How much material can I save compared to spraying plaster onto XPS?
A: Typically 35-45% for medium-viscosity plasters. Spraying wastes 30-50% as overspray + bounce-back from rigid foam. Knife coating recirculates >95% of excess. We provide a customizable free test with your XPS and coating before order.
Q2: Will the knife coater crush or deform soft XPS boards (e.g., 25 kg/m³)?
A: No. The backing roller is customizable (soft silicone) and the blade gap can be set to a floating mode. Nip pressure is adjustable. For very soft boards, we add a rigid backplate support.
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer
Year Established:
2007
Total Annual:
2000000-3000000
Employee Number:
150~200
Ecer Certification：
Verified Supplier
Dongguan OSMANUV Machinery Equipment Co., Ltd. was established in 2007 and is headquartered in Dongguan, Guangdong Province, a renowned manufacturing hub within the Guangdong-Hong Kong-Macao Greater Bay Area. We are a high-tech enterprise integrating R&D, production, sales, and af... Dongguan OSMANUV Machinery Equipment Co., Ltd. was established in 2007 and is headquartered in Dongguan, Guangdong Province, a renowned manufacturing hub within the Guangdong-Hong Kong-Macao Greater Bay Area. We are a high-tech enterprise integrating R&D, production, sales, and af...
