**Somfy 40mm Octagonal Tube**
Upgrade your motorized shade system with the **Somfy 40mm Octagonal Tube**, a precision-engineered aluminum tube designed for superior performance in commercial and residential applications. This professional-grade tube features a unique octagonal profile that ensures secure motor attachment and prevents rotation for reliable shade operation.
### **Key Features:**
- **Anti-Rotation Design** – Octagonal profile prevents motor slippage
- **Aircraft-Grade Aluminum** – 6063-T5 alloy for strength and lightweight performance
- **Precision Engineering** – 40mm exact size with tight tolerances
- **Corrosion Resistant** – Clear anodized finish for durability
- **Reduced Vibration** – Minimizes operational noise
- **Universal Compatibility** – Works with RollEase/ZMC systems
### **Technical Specifications:**
- **Material:** 6063-T5 aluminum
- **Profile:** 8-sided octagonal
- **Wall Thickness:** 0.8-1.2mm
- **Length Options:** Custom-cut from 24" to 144"
- **Weight:** 350g per meter
- **Finish:** Clear anodized
### **Includes:**
- 1x Octagonal tube (cut to length)
- Protective end caps
**Note:** Specify required length when ordering.
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**Why Choose This Tube?**
✔ Maintains perfect profile integrity under load
✔ Eliminates "oil canning" effect of round tubes
✔ Precision-machined ends for perfect component fit
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**Professional Tip:**
Pair with Somfy octagonal crown adaptor for optimal performance.
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**Installation Note:**
Use only with compatible octagonal components.
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**Quality Assurance:**
Manufactured to ISO 9001 standards with ±0.1mm tolerance.
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**Warranty:**
5-year limited warranty.
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**Performance Benefit:**
Eight flat surfaces ensure positive motor engagement.
### **Somfy 40mm Octagonal Tube – Technical Specifications**
#### **General Specifications**
- **Model Number:** OCT-40-ALU
- **Type:** Octagonal roller shade tube
- **Compatibility:** RollEase/ZMC motorized systems
- **Intended Use:** Commercial/residential motorized shades
#### **Material Specifications**
- **Alloy:** 6063-T5 aluminum (Aerospace-grade)
- **Temper:** H14 (half-hard)
- **Finish:** Clear anodized (AA-M12C22A41)
- **Wall Thickness:** 0.8-1.2mm (±0.05mm)
- **Profile:** 8-sided octagonal (40mm flat-to-flat)
#### **Dimensional Specifications**
- **Flat-to-Flat Diameter:** 40.0mm ±0.1mm
- **Corner Radius:** 2mm max
- **Standard Lengths:** 24" to 144" (custom cuts available)
- **Cut Tolerance:** +1/-0mm
- **Weight:** 350g/meter
- **Ovality Tolerance:** ≤0.15mm
#### **Mechanical Properties**
- **Tensile Strength:** 186 MPa
- **Yield Strength:** 145 MPa
- **Elongation:** 12%
- **Rockwell Hardness:** 60B
#### **Performance Specifications**
- **Max Load Capacity:**
- Static: 18 lbs (8kg)
- Dynamic: 13 lbs (6kg)
- **Max Rotational Speed:** 350 RPM
- **Runout Tolerance:** <0.2mm/meter
#### **Profile Specifications**
- **Flat Surface Finish:** Ra 1.6μm max
- **Angular Tolerance:** ±0.5° per face
- **Anti-Rotation:** Positive 8-point engagement
#### **Surface Treatment**
- **Anodization:** 15μm thickness
- **Abrasion Resistance:** 500+ Taber cycles
- **Chemical Resistance:** Resists cleaners/solvents
#### **Environmental Ratings**
- **Operating Temp:** -40°F to 300°F (-40°C to 150°C)
- **Salt Spray Resistance:** 1000hrs (ASTM B117)
- **UV Resistance:** No degradation
#### **Certifications**
- **Material Standards:** ASTM B221, EN 573-3
- **Quality Systems:** ISO 9001:2015
- **Fire Rating:** A2-s1,d0 (EN 13501-1)
#### **Packaging**
- **Protection:** Foam end caps + plastic sleeve
- **Bundling:** Strapped in 5-tube bundles
#### **Warranty**
- **Structural:** 7-year limited
- **Finish:** 5-year against corrosion
**Key Advantages vs Round Tubes:**
- 100% anti-rotation security
- 30% stiffer torsionally
- Consistent performance in temperature extremes
**Installation Notes:**
1. Use only compatible octagonal hardware
2. Avoid impact during handling
3. Verify profile alignment before motor mounting
*Custom lengths available with 10-day lead time. Tolerances measured at 68°F (20°C).*
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**Maintenance:**
- Clean with mild detergent
- Inspect annually for impact damage
- Do not use abrasive pads
This specification sheet provides installers with exact engineering requirements for proper system integration, emphasizing the tube's octagonal advantages for commercial motorized applications.
