Feature	Description
Product Name	7-Meter Sand Washer (Single/Double Spiral, 7-Meter Spiral Sand Washer) by NovinCSM
Origin & Compatibility	Compatible with Cubit/Hydrocone crushing lines; Capacity: 40–60 t/h
Material & Alloy	Body: Carbon steel (SAE 1045/CK45, 6–8 mm plate); Spiral/blades: Polyurethane or manganese steel (5 mm thick); Tank: Concrete/anti-corrosion steel
Hardness	HB 180–220 (steel body); Shore A 70–90 (polyurethane blades)
Operating Temperature	Max 50–70°C (resistant to water heat/friction; suitable for humid environment)
Standard Dimensions	Length: 7 m; Width: 100–140 cm; Tank height: 1–1.5 m; Spiral slope: 18°; Inlet opening: 100–140 cm
Approx. Weight	3.5–5.5 tons (depending on body material and single/double spiral)
Production Capacity	40–60 t/h (Spiral: 40–50 t/h; depends on spiral speed 10–20 rpm and water volume)
Motor Power	7–15 kW (commonly 10 HP); 3-phase electric motor with worm gearbox (PM400/Russian)
Water Consumption	20–40 m³/h (2 water inlets, 1 mud/slag outlet; 2–3 bar pressure for optimal washing)
Surface & Tolerance	Surface finish: Ra 3.2–6.3 μm (body); Dimensional tolerance: ±0.03 mm; Blade grooves ≥90% water contact
Wear Resistance	High (30% longer life with polyurethane; resistant to mud/slag and fine particles; material loss <5%)
Thermal Resistance	Excellent; resistant to temperature/humidity changes (water channels for spiral cooling)
Manufacturing Process	Welding/casting (body from steel billet) + polyurethane coating; Reinforced mesh installation to reduce loss; 1 mud outlet, 2 water inlets

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7-Meter Spiral Sand Washer – Applications

Primary Function:
Washing and separating mud/slime from sand after screening and before drying; producing clean sand with moisture <5%.

Industries:

Sand/gravel mines
Concrete production
Asphalt and cement plants
Glass/tile production (improving quality of river/rock sand)

Types:

Single spiral (common for 7-meter models)
Double spiral (higher capacity)

Advantages:

Precise washing with minimal loss (<5%)
Improves concrete adhesion (reduces cement consumption by 10–15%) and durability of materials
Low energy/water consumption (≈20 m³/h) and reduced pollution
Polyurethane blades: 30% longer lifespan than standard steel
Uniform texture and brighter color
Flexible integration with modern NovinCSM lines (after Cubit/Hydrocone)
Economical: locally produced, OEM quality, easy installation (1–2 days)

Disadvantages:

Moderate water consumption (requires recirculation system for savings)
Wear parts: blade replacement every 6–12 months under heavy use
Medium weight (requires crane handling); sensitive to overload (efficiency drops above 60 t/h)
Used/old units may show corrosion (check 6 mm plates)

Installation & Maintenance Notes:

Install after screening; maintain 18° spiral slope
Connect to water pump (2–3 bar); concrete base; leveling tolerance ±0.05 mm (installation: 1–2 days)
Periodic washing (every 200 hours); monitor blade wear (>5 mm replace)
Avoid acidic materials
Lubricate PM400/Russian gearbox regularly