WANJIA Modern Waterproof Swing Pivot Entry Door
Heavy-duty structural aluminum pivot door system engineered with advanced weather-stripping, multi-point locksets, and high water-ingress resistance.
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Engineering Specifications • Direct Factory OEM
Architectural-Grade Aluminum Roll-Up Counter Systems
In modern commercial architecture and high-spec residential builds, counter closures serve as the frontline for structural security, thermal isolation, and compact spatial efficiency. DERCHI delivers end-to-end custom OEM manufacturing, translating strict architectural blueprints into precision-extruded shutter assemblies.
Precision Balcony Aluminum Sliding Window Series
Ultra-quiet track systems designed for multi-family towers and coastal residences, featuring corrosion-resistant anodized frame extrusions.
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Thermal Break 6063-T5 Extrusion Profiles
Custom polyamide thermal barrier extrusions for roll-up guide channels, bi-fold systems, and architectural counter frames.
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Moisture-Proof Interior Aluminum Counter Door
Sealed privacy assemblies designed for commercial service counters, luxury interior wet zones, and corporate hospitality partitions.
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Hurricane Impact AS2047 Sliding Counter Window
Tested for extreme cycling and cyclonic wind pressures, utilizing high-tensile safety glazing and certified impact structural dampening.
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Ultra-Narrow Architectural Sightline Door
Minimalist powder-coated frames balancing modern aesthetics with structural rigidity, optimized for reception lobbies and retail storefronts.
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Multi-Sealed Heavy Duty Lift & Slide System
180-degree handle rotation with multi-tier EPDM automotive-grade sealing for oversized commercial facades and high-security pass-throughs.
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Industrial Crittall French Swing Counter Door
Architectural steel-look aluminum profile featuring NFRC-certified energy efficiency and high-tensile tempered security glazing.
Product Details →180,000m²
Production Footprint
Automated CNC extrusion, assembly, and powder-coating lines in Foshan.
25+
Years Engineering
Specialized in export-standard architectural fenestration and security closures.
100+
Patents & Testing
CE, ISO 9001, AS 2047 N6, and UL fire ratings verification.
600+
Technicians & Crew
Dedicated CAD engineers, QA specialists, and European-hour desk engineers.
Engineering Specifications
Roll-Up Counter Door Anatomy: Metallurgy & Structural Mechanics
Commercial roll-up counter doors operate under high-frequency thermal and mechanical stress. Sourcing directly from an established OEM requires an understanding of the critical metallurgical, kinetic, and security criteria that differentiate low-cost shutters from true architectural systems.
Extrusion Grade 6063-T5/T6
Roll-up counter curtains demand a tight balance between elasticity and tensile yield strength. We utilize certified architectural 6063-T5 aluminum, delivering minimum tensile strengths of 150 MPa to prevent slat sagging over wide counter spans.
- Wall Thickness: 1.2 mm – 2.5 mm options
- Slat Configuration: Flat, curved, or micro-perforated
- Interlocking Knuckles: Continuous roll-formed retention
Wind-Lock & Security Integration
Counter doors in external concessions or open-air hospitalities face localized wind pressure. DERCHI implements integrated end-locks that slide into heavy-gauge vertical guides with acoustic polyvinyl brush liners to eliminate shutter chatter.
- Locking Options: Slide bolts, cylinder locks, padlocks
- Guide Rail Design: Extruded aluminum with PVC wool
- Bottom Rail: Heavy extruded tubular bar with astragal
Counterbalance & Duty-Cycle
Manual push-up or motorized tubular operators require exact barrel-to-spring torsion balancing. We deploy oil-tempered helical torsion springs designed for a base 20,000 cycles, scalable to 50,000 cycles for multi-shift logistics environments.
- Spring Type: Torsion spring assembly in enclosed barrel
- Operation: Manual lift, hand crank, or 220V/110V tubular
- Emergency Release: Mechanical manual override built-in
Verification Data
OEM Manufacturing Specification Parameters
Every roll up counter door is built to exact opening dimensions. Below are standard engineering tolerances and specifications validated across European and international projects.
| Specification Feature | Standard Configuration | High-Performance / Premium Option | Compliance / Testing Norm |
|---|---|---|---|
| Curtain Profile | Single-skin extruded 6063-T5 (38mm - 45mm slat pitch) | Double-skin insulated polyurethane foam injected slat | EN 13241 / ASTM B221 |
| Thermal Insulation | Standard air-barrier closure | PU Core: U-value ≤ 1.6 W/(m²·K) | EN ISO 10077-1 |
| Acoustic Attenuation | Single slat: Rw ≈ 18 dB | Acoustic double-wall slat: Rw up to 28 dB | EN ISO 717-1 |
| Surface Treatment | Architectural Powder Coating (Qualicoat Class 1) | PVDF Fluorocarbon (AAMA 2605) or Hard Anodized 20μm | ISO 2810 / Qualicoat |
| Wind Load Resistance | Class 2 (up to 450 Pa) | Class 4/5 (up to 1200+ Pa with storm wind locks) | EN 12424 / AS 2047 N6 |
| Burglar Resistance | Standard commercial latch | RC2 / RC3 certified reinforced security hardware | EN 1627-1630 |
Procurement Intelligence
Future Procurement & Engineering Trends (2025–2030)
Architectural specifiers and commercial builders are shifting their sourcing criteria. Procurement directors should factor in the following shifts when standardizing their supply chain.
IoT Integration & Predictive Maintenance
Next-generation roll-up counter doors are moving away from dumb momentary switches. Modern OEM projects demand integrated CAN-bus and RS-485 modules communicating directly with Building Management Systems (BMS), tracking cycle counters, torque variances, and obstruction events to trigger preventative maintenance before counter failure occurs.
Circularity & Low-Carbon Metallurgy
With Europe's Carbon Border Adjustment Mechanism (CBAM) taking hold, sourcing aluminum with high scrap-recovery content and hydro-powered smelting is no longer optional. Leading suppliers are providing audited Environmental Product Declarations (EPDs), validating low-embedded carbon per kilogram of finished counter curtain.
BIM-Driven Customization
The standard catalog door is obsolete for multi-unit rollouts. Buyers now expect direct Revit/IFC parametric file delivery during the tender stage. OEM suppliers must possess in-house engineering departments that confirm deflection calculations and electrical rough-in layouts before aluminum billets enter the extrusion die.
Manufacturing Authority
The DERCHI Advantage: Industrial Strength in Foshan
Recognized among China's top 10 premium door and window enterprises, Guangdong Dejiyoupin Doors and Windows Co., Ltd. (DERCHI) combines massive manufacturing infrastructure with Western compliance engineering.
180,000 m² Production Base
Located in Foshan, China's core aluminum manufacturing cluster, our facility features automated extrusion lines, precision CNC machining, and automated powder-coating lines operating under ISO 9001 governance.
Schüco Partner Validated
Our quality benchmarks have been verified by tier-1 European contractors, including selection by a long-term UK Schüco partner for luxury residential builds, competing head-to-head with Europe's top systems.
Global Field Testing
Certified across critical jurisdictions: Australian AS 2047 N6 (highest wind & water resistance level), European CE marking (EN 14351-1), and American NFRC energy ratings for project approval confidence.
Free CAD & Engineering
Our English-speaking design engineers work across European and North American time zones, providing free CAD shop drawings, structural calculations, and custom extrusion tooling design directly from your door schedule.
Procurement Guidelines
Frequently Asked Questions for B2B Importers & Contractors
Direct answers addressing technical compliance, minimum orders, packaging integrity, and international logistics.
What alloy and temper are used for custom counter door slats?
We primarily extrude using architectural 6063-T5 aluminum alloy, providing a balance of structural rigidity, surface finish smoothness, and corrosion resistance. For high-impact or cyclonic applications requiring enhanced deflection resistance, we offer heat-treated 6063-T6 or structural 6061-T6 profiles.
Can DERCHI produce roll-up counter doors to custom opening sizes?
Yes. 100% of our OEM production is made-to-measure. We build counter doors ranging from narrow 600mm pass-through service hatches up to 6,000mm wide commercial counter spans. Our engineers calculate the required barrel diameter, spring torsion, and slat thickness per opening.
What certifications are provided for building control and tenders?
We provide full documentation packs tailored to project jurisdictions. This includes CE declaration of performance (EN 14351-1, EN 13241), ISO 9001:2015 manufacturing certificates, Australian AS 2047 N6 test reports, and third-party laboratory evaluations for fire and acoustic performance.
How do you prevent shutter curtain damage during sea transport?
All counter door assemblies are packed for ocean freight. Slat curtains are wrapped in protective polyethylene film, fitted with edge-dampening foam, and secured inside solid, fully enclosed fumigated plywood crates with reinforced corner supports to withstand container transshipment.
What are the typical lead times for custom OEM roll-up counter doors?
Standard custom configurations require 15 to 25 working days from CAD approval to factory packaging. Bespoke die-extrusion profiles or custom anodizing colors require an additional 10 to 14 days for initial tooling validation and metallurgical testing.
Can roll-up counter doors be finished in custom architectural colors?
Yes. We operate an automated in-house powder-coating line supporting the complete RAL classic palette, AkzoNobel Interpon architectural finishes, wood-grain sublimations, and natural, bronze, or black electrolytic anodized surfaces with minimum 15μm film thickness.
Ready to Engineer Your Custom Counter Closure Solution?
Submit your project schedules, opening dimensions, or structural CAD files. Our engineering team will review your specifications, verify compliance requirements, and issue detailed shop drawings with transparent factory-direct pricing within 24 hours.