Vinyl Hand Cranked Window NFRC CE Certified Opening Energy Saving Double Glazing For Residential Villa Construction Projects

Product Description

We are a professional manufacturer of vinyl crank windows, combining the energy efficiency of multi-chamber UPVC frames with the convenience of crank-operated opening. A smooth worm-gear crank mechanism opens the window to any desired angle with minimal effort, while multi-point locking and EPDM weather seals ensure secure, weathertight closure. Available in awning and casement styles, fully customizable in size, color and glazing. NFRC certified, OEM/ODM supported. Contact us for a quotation, or send your drawings for a custom quote.

Key Features

1. Effortless Crank Operation — the worm-gear crank mechanism opens and closes the window smoothly with minimal effort, easy for elderly users and children.

2. Precise Opening Control — the window stays at any chosen opening angle, from a small ventilation crack to fully open.

3. Multi-Chamber UPVC Frames — natural thermal insulation; U-Factor as low as 1.0 W/(m²·K) with optional Low-E glazing.

4. Multi-Point Locking Security — multi-point locks engage around the sash for a secure, tamper-resistant closure.

5. Multi-Seal Weather Protection — EPDM gaskets deliver Class 8 air permeability and Class 6 water tightness.

6. Low Maintenance — UPVC frames never rust, rot or require painting.

7. Detachable Crank Handle — the handle can be removed and stored, preventing accidental operation and adding security.

8. Full Customization — size, color, glazing and crank position (left/right) fully customizable; OEM/ODM supported.

Specifications

Materials & Finish

• Frame profiles: multi-chamber UPVC extruded profiles, wall thickness 2.5–3.0mm, UV-stabilized, lead-free
• Reinforcement: galvanized steel inserts for structural rigidity
• Welding: four-corner heat welding; seams cleaned and finished
• Operator: worm-gear crank mechanism with steel or nylon gears, detachable handle
• Gaskets: EPDM composite gaskets, -40°C to 120°C, aging resistant
• Glass: automotive-grade float glass; tempered, laminated, Low-E, argon-filled IGUs optional
• Hardware: multi-point locking espagnolette, stainless steel hinges

Assembly & Installation

Installation steps:

• Measure the opening — verify actual opening dimensions, level and plumb
• Install the frame — fix with expansion bolts / connectors; adjust level and plumb to within 2mm
• Mount the operator — install and connect the crank mechanism, test smooth operation
• Waterproofing — fill gaps between frame and wall with foam, apply weather-resistant sealant with a drainage slope
• Final adjustment — check crank operation, locking points and seals, remove protective film and clean

Applications

• Residential homes & apartments — easy-operation windows for all ages (keywords: crank window, awning window, vinyl crank window)
• Kitchens & bathrooms — awning windows open outward above counters and sinks
• Basements & high windows — crank operation easily reaches windows in hard-to-reach positions
• Schools & hospitals — effortless operation for children and elderly users
• Renovation projects — retrofit-friendly replacement windows
• Coastal & humid regions — rust-free UPVC frames
• Office buildings — controlled ventilation with secure closure
• Hotels & care facilities — easy operation for residents

Customization

• Size: non-standard sizes produced from drawings; arched and special shapes available
• Color: white, wood-grain foil, co-extruded color options
• Glazing: thickness, air space, Low-E, laminated, tempered, frosted
• Operator: left or right hand crank position, detachable handle, lockable operator
• Opening style: awning or casement crank-operated
• Hardware: handle and lock type, optional insect screen
• OEM/ODM service: private label, logo printing, custom packaging, new products developed from customer drawings

Certifications

• Compliant with GB/T 28886 Building Plastic Windows national standard
• ISO 9001:2015 quality management system certified
• CE certified (EU market)
• NFRC energy performance certified (North America)
• Third-party test reports from SGS / TÜV available on request
• Factory QC: each batch ships with an inspection certificate

Packing & Logistics

• Inner packing: each window wrapped in EPE foam with protective film
• Outer packing: heavy-duty carton or wooden crate with reinforced corners for long sea freight
• Export crates: fumigation optional, compliant with ISPM 15
• Lead time: 15–25 days standard, 25–35 days custom (subject to order confirmation)
• Shipping: FCL / LCL by sea, air freight, international express
• Trade terms: FOB / CIF / EXW / DDP
• Loading port: 【Qingdao Port】

Product Video

• 360° product showcase (30s) — full window appearance and opening demonstration
• Crank operation demo (30s) — smooth opening and precise angle control
• Installation walkthrough (60–90s) — frame fixing, operator mounting and waterproofing
• Performance test footage — air, water and wind load tests
• Factory production line — profile extrusion, corner welding, assembly, QC
• Project case footage — installed windows and customer feedback

Reviews & Cases

Sample reviews:

• The crank opens the window so easily — my 80-year-old mother can do it without any effort. Very well made.
• Ordered 200 awning windows for a school renovation. Smooth operation, tight seals and an excellent price.
• Perfect for our kitchen above the sink. Rain doesn’t get in even when half open. The frames still look new.

Case template:

• Project name: Senior Apartment Vinyl Crank Operator Window Project
• Location: Phoenix, USA
• Scale: 1460 m² window area / 685 units
• Configuration: 76 series multi‑chamber Vinyl profile + 5+16A+5 insulated Low‑E glazing + durable crank operator hardware
• Customer feedback: Easy manual crank operation brings great convenience for elderly residents and performs well under hot dry climate.

Service

• Samples: free sample windows available before ordering
• Design support: free drawing review, operator position layout and detailed design
• Quick response: inquiries replied within 24 hours; after-sales issues within 48 hours
• Warranty: 3 years on profile structure, 5 years on hardware (per company policy)
• Installation support: installation video and manual provided; on-site technical guidance available
• After-sales: long-term spare parts supply, lifetime parts service
• Quality commitment: every window inspected before shipment; no defective products leave the factory

FAQ

Q1: What is a crank window?

A: A crank window opens and closes with a hand-crank mechanism that pushes the sash outward. It allows precise control of the opening angle and is very easy to operate.

Q2: Can the crank window be locked?

A: Yes. The windows feature multi-point locks for secure closure, and the crank handle can be detached or lockable to prevent accidental or unauthorized operation.

Q3: Are crank windows suitable for high floors?

A: Yes. The crank mechanism controls the opening precisely and can be combined with a restrictor, making awning crank windows a common choice for upper floors in North America.

Q4: What is the minimum order quantity (MOQ)?

A: custom MOQ depends on configuration — confirm with our sales team.

Q5: What is the production lead time?

A: Around 15–25 days for standard windows and 25–35 days for custom orders; partial shipments can be arranged for large orders.

Q6: What is the maximum opening sash size?

A: Awning sashes are generally produced up to about 1200mm wide × 1500mm high, and casement sashes up to 1200mm wide × 1800mm high, subject to wind load calculation.

Q7: Do you support OEM/ODM?

A: Yes. We offer private label, logo printing, custom packaging, and new product development from customer drawings.

Q8: What is the warranty? How is after-sales handled?

A: 3 years on profile structure and 5 years on hardware. Report issues with photos and we will provide a solution within 48 hours.

Q9: What glazing options are available?

A: Double glazing, triple glazing, Low-E, laminated, tempered, frosted and built-in blinds. We can recommend the right configuration for your local climate.

Q10: How do you guarantee quality?

A: We use qualified suppliers for profiles, glass and hardware, run QC throughout production, and inspect every window before shipment with a certificate of conformity. Test reports are available.

Q11: Can I get a sample?

A: Yes. Samples / sample windows are available free or at cost (freight paid by customer); the sample fee is deductible from the first order.