Introduction —Power Trowel SI-3900 2HP / 3HP Machine Specification
This document outlines the machine specifications for the Power Trowel SI-3900, a walk-behind model available with 2HP and 3HP electric motor options. This machine is a popular choice for concrete surface finishing, particularly for indoor projects, offering reliable performance with zero emissions. Avirat Industries provides these technical details for your reference.
Working Principle & Process Flow — SI-3900 Electric Trowel
The SI-3900 Power Trowel operates using a 2HP or 3HP electric motor, which drives a heavy-duty gearbox. This gearbox, in turn, rotates the spider assembly holding four trowel blades. The operator guides the machine over the concrete, using the 900mm trowel diameter to efficiently float and finish the surface. The electric motor ensures consistent RPM and torque for a smooth, high-quality finish.
Models and Types — SI-3900 Variations
- Model SI-3900 (2HP) — Standard electric model for finishing applications.
- Model SI-3900 (3HP) — High-torque electric model for floating and finishing.
- Petrol Engine Variants — Similar 36-inch models powered by petrol engines.
- 46-inch (1200mm) Models — Larger electric and petrol trowels for industrial floors.
- Edger Trowels — Smaller 24-inch models for finishing edges.
SI-3900 Key Features & Technical Specifications
- Model Number: SI-3900
- Motor Power: 2 HP (1.5 kW) or 3 HP (2.2 kW) options.
- Power Source: Electric, 415V, 3-Phase, 50Hz.
- Trowel Diameter: 900 mm (Approx. 36 inches).
- Blade Count: 4 (Float / Finish / Combination Blades).
- Speed / RPM: Approx. 60-120 RPM (Varies by model).
- Handle Type: Walk-behind with safety kill switch.
Applications of the SI-3900 2HP/3HP Machine
- Indoor Industrial Floors — Ideal for warehouses and factories where emissions are a concern.
- Basements and Enclosed Spaces — Zero-fume operation makes it perfect for sub-level work.
- Commercial and Residential Slabs — Produces a smooth finish for retail stores, homes, and offices.
- VDF (Vacuum Dewatered Flooring) — The 3HP model provides ample torque for VDF finishing.
- Cold Storage and Food Processing Plants — Clean electric operation is suitable for sensitive environments.
Why Choose the SI-3900 Electric Power Trowel?
- Zero Emissions: Electric 2HP/3HP motor allows for safe use indoors and in poorly ventilated areas.
- Reliable Power: Consistent torque from the 3HP motor is excellent for both floating and finishing.
- Low Noise Operation: Significantly quieter than petrol engine models, reducing site noise.
- Easy Starts: Simple switch-on operation without the hassle of pull-starts or choke.
- Low Maintenance: Electric motors typically require less maintenance than combustion engines.
Supplier for SI-3900 Specifications in Ahmedabad
Avirat Industries provides detailed specifications and support for the SI-3900 2HP and 3HP power trowel machines in Ahmedabad, Gujarat. We help contractors select the right electric-powered machine for their specific indoor or industrial concrete finishing needs, ensuring optimal performance and reliability.
Operation & Maintenance Tips — SI-3900 Electric Model
- Always verify the site power supply matches the machine's requirement (415V, 3-Phase).
- Use a heavy-duty, properly-rated extension cord to prevent voltage drop.
- Keep the electric motor's cooling fins clean from concrete dust and debris.
- Check the gearbox oil level regularly as per the manufacturer's specification.
- Never operate the machine without the safety guard in place.
FAQs – Power Trowel SI-3900 2HP / 3HP Specifications
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