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High-Strength Aluminum Frame
Made of high-strength aluminum alloy, with an electrostatic black powder-coated finish, offering excellent corrosion resistance and weather resistance.
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EU ECE Certified Safety
All models are equipped with double-glazed acrylic glass (double bronze tint), featuring UV resistance and complying with EU ECE safety certification standards.
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70° Flexible Opening
Multi-Angle Opening up to 70° – Equipped with Infinitely Adjustable, Stepped, or Gas Supports for Effortless Positioning at Any Angle.
MR-26RW
This series is an innovative product launched by Bigbanh for the high-end RV market. It utilizes exclusive molding technology that overcomes the limitations of traditional metal frame welding, delivering higher structural strength and superior aesthetic performance.
Key Features
- One‑piece molding process
- Mitsubishi acrylic glass (Japan)
- Maximum opening angle of 70°
- Compatible with wall thickness ranging from 25mm to 40mm
- Full range ECE certified (EU safety standard)
Specification
HOLE ENTRANCE FILLET: 4-R70. (Other specifications can be customized according to customer requirements.)
| DIMENSIONS | APERTURE SIZE |
|---|---|
| 300*500 | 302*502 |
| 450*400 | 452*402 |
| 450*500 | 452*502 |
| 500*300 | 502*302 |
| 500*350 | 502*352 |
| 500*450 | 502*452 |
| 500*600 | 502*602 |
MR-19RW
Flat Outside Series – Premium Aluminum Window for Modern RVs, Featuring High-Performance Materials and Ultra-Flush Design.
Key Features
- Double-layer hollow acrylic glass: Single tea-colored glass with flat exterior and convex interior, UV-resistant, complies with EU ECE safety certification.
- Weather-resistant ASA outer frame.
- Outward-opening: With standard gear support rod.
- Wall thickness: Adaptable with decorative strips (25–40 mm).
- Standard pleated curtain: Included on inner frame.
- Frosted option: 280×380 version is frosted acrylic glass.
Specification
HOLE ENTRANCE FILLET: 4-R75. (Other specifications can be customized according to customer requirements.)
| DIMENSIONS | APERTURE SIZE |
|---|---|
| 280*380 | 282*382 |
| 450*500 | 452*502 |
| 500*400 | 502*402 |
| 500*520 | 502*522 |
| 560*465 | 562*467 |
| 700*400 | 702*402 |
| 700*520 | 702*522 |
| 750*465 | 752*467 |
| 818*315 | 820*317 |
| 900*520 | 902*522 |
| 960*450 | 962*452 |
MR-23RW-2
High-end RV square flush windows sold by BIGBAHN are designed specifically for premium RVs and specialty vehicles that pursue a rugged, modern aesthetic.
Key Features
- Premium Double Glazing: Dual-pane hollow acrylic glass, tinted for privacy and insulation, fully compliant with stringent EU ECE safety standards.
- Aviation-Grade Frame: High-strength powder-coated aluminum alloy construction for exceptional durability and corrosion resistance.
- Customizable Inner Comfort: Sleek injection-molded inner frame, perfectly integrated with optional pleated or roller blinds for privacy and shade.
- Stepless Ventilation: Outward-opening design with versatile multi-angle positioning, providing smooth and tailored airflow control.
- Precision Support: Engineered with a standard stepless support rod; premium multi-stage ratcheting support optionally available.
Specification
HOLE ENTRANCE FILLET: 4-R10. (Other specifications can be customized according to customer requirements.)
| DIMENSIONS | APERTURE SIZE |
|---|---|
| 300*500 | 303*503 |
| 350*500 | 353*503 |
| 450*500 | 453*503 |
| 500*300 | 503*303 |
| 500*350 | 503*353 |
| 610*450 | 613*453 |
| 700*300 | 703*303 |
| 700*400 | 703*403 |
| 900*450 | 903*453 |
MR-26RW vs. MR-19RW vs. MR-23RW-2
| Dimension | Application Scenario |
|---|---|
| MR-26RW: Classic Styling, R70 Standard Corner Radius, R70 Standard Corner Radius, Flip-Open Support Rod | Universal Compatibility: Fits Most Mainstream RV Models with Standard Wall Thickness |
| MR-19RW: Modern Styling, R75 Standard Corner Radius, ASA Engineering Plastic, Multi‑Position Stay‑Open Support | Premium Weather Resistance: Designed for Vehicles Demanding Superior Surface Flatness and Exceptional UV Aging Protection |
| MR-23RW-2: Rugged Styling, R10 Small Corner Radius, High-Strength Aluminum Alloy, Flip-Open Support Rod | Overland RV: Engineered for Overland RVs and Minimalist Premium Motorhomes |
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Frequently Asked Questions
Materials
What materials are used for the glass?
What materials are used for the glass?
All three series utilize double-glazed hollow acrylic glass.
Can I choose the color of the glass?
Can I choose the color of the glass?
The standard color is double tea-colored (dark tint).
However, for the MR-19RW series, specific sizes like 280x380mm are available with frosted acrylic glass, making them ideal for bathrooms and private areas.
Installation
What wall thickness do these windows fit?
What wall thickness do these windows fit?
- MR-19RW: Designed for standard wall thicknesses of 25mm - 40mm.
- MR-26RW & MR-23RW-2: Generally adaptation wall thicknesses of 25mm - 40mm, but some models can support up to 50mm with specific decorative trim strips.
- Note: Please confirm your specific wall thickness during ordering to ensure the correct mounting accessories are provided.
Are there any special requirements for installation?
Are there any special requirements for installation?
We strongly recommend using non-drying sealant (butyl sealant) during installation.
Features
What is the maximum opening angle?
What is the maximum opening angle?
These are Awning or Extrapolation windows that can be pushed outward to a maximum angle of 70 degrees.
What types of support rods are available?
What types of support rods are available?
Standard: Typically equipped with flapping support rods or gear-stage rods.
Optional: Customers can upgrade to pneumatic support rods or stepless (friction) support rods for smoother operation and positioning.
Do these windows include flyscreens and sunshades?
Do these windows include flyscreens and sunshades?
Yes.
- MR-19RW & MR-23RW-2 come with an integrated magnetic inner frame featuring a pleated blackout blind and a high-density flyscreen.
- MR-26RW comes with a standard jointed inner frame providing the same privacy and insect protection.
Customization
Can I order custom sizes if my requirements are not on the standard list?
Can I order custom sizes if my requirements are not on the standard list?
Yes.
BIGBAHN supports custom dimensions and specialized designs to meet unique project requirements.
Can these windows be used as emergency exits?
Can these windows be used as emergency exits?
Yes.
When the window and the inner flyscreen are fully opened, they can serve as emergency exits (except for extremely small window sizes) .
