Durable carbon steel hopper for agricultural machinery, manufactured by high‑strength metal spinning for excellent forming consistency. Ideal for mass production with competitive pricing, stable performance, and reliable structural strength.

Rear Cone

CNC Metal Spun Rear Cone | Q235B Agricultural Machinery Conical Component

Seamless Metal Spinning Rear Cone for Grain Conveying Systems

1. Product Overview

  • Industry: Agricultural Machinery / Bulk Material Handling
  • Component: Rear Cone / Conveyor End Cone
  • Process: CNC Metal Spinning (Seamless Cold Forming)

2. Material Specification

  • Material: Q235B Carbon Steel (GB/T 700-2006)
  • Yield Strength: ≥235 MPa
  • Tensile Strength: 370–500 MPa
  • Elongation: ≥26%
  • Density: 7.85 g/cm³

3. Dimensions & Tolerances

  • OD: Ø625 mm × H171 mm
  • Thickness: 4.0 mm ±0.15 mm
  • Roundness: ≤0.3 mm
  • Perpendicularity: ≤0.2 mm/m
  • Surface Roughness: Ra ≤1.6 μm

4. Manufacturing Process

Core Process: CNC Metal Spinning (CNC1250 lathe)

  • Spindle Speed: 500–900 rpm
  • Feed Rate: 4–8 mm/s
  • Controlled Deformation: 3.8–4.2 mm

Process Flow:
Blank → Leveling → CNC Spinning → Deburring → Cleaning → Inspection

Key Feature:
✔ Seamless one-piece forming (no weld seam)
✔ Stable wall thickness control
✔ High impact resistance for agricultural environments

5. Quality Control

  • System: ISO 9001:2015

Inspection Includes:

  • Chemical composition (C ≤0.22%, Mn ≤1.4%)
  • Ultrasonic defect detection
  • CMM dimensional control
  • Full wall thickness inspection (±0.01 mm)
  • Final inspection (GB/T 2828.1, AQL 2.5)

6. Production & Delivery

  • Capacity: 50 pcs/day
  • Lead Time: 5–8 working days

Packaging: Anti-rust + EPE foam + wooden pallet
Delivery: 3–6 days domestic logistics

7. Applications

  • Grain harvesters
  • Agricultural conveyor systems
  • Crop processing equipment

Function:

  • Material guiding & discharge control
  • Anti-clogging flow stabilization
  • Protection of conveyor end structure

8. Extended Applications

  • Mining conveyor systems
  • Construction waste handling
  • Forestry machinery

9. Operating Conditions

  • Temperature: -20°C to 120°C
  • Load: ≤1.0 MPa
  • Environment: Dusty / humid / high vibration

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