Bean harvester machine BigBean

peanuttractor-mounted

The PWL BigBean is a bean harvester fully manufactured in Poland, developed for sustained operation on farms growing beans and other legumes. It offers road approval for legal transport between fields and is designed for straightforward service access and parts availability.

Overview
The machine is built from domestically produced components to ensure spare parts availability and simplified maintenance. It is configured for European road conditions and features a quick-folding feeder to reduce setup and storage space.

Key advantages and equipment

• Road approval for legal operation on public roads without additional permits.
• Hydraulically braked axle with option to upgrade to a full pneumatic braking system.
• Quick-folding feeder system to reduce preparation time and simplify storage.
• Sensor suite monitoring key components for operational safety and early fault detection.
• 3,000 L grain tank for extended operation without frequent unloading.
• Main components from established manufacturers (examples: FAG, SANOK) to ensure chassis durability and serviceability.
• Tires: 460/70R24 W15Lx24 for traction and stability on difficult terrain.
• Recommended tractor power: 140 HP (minimum required: 90 HP).

Pick-up

• Constructed from 6 mm (or thicker) steel for wear resistance.
• Long double tines ensure efficient feeding; tines designed for quick replacement via rear access.
• Hydraulic drive for pickup; adjustable from the operator’s cab with maximum hydraulic flow up to 75 l/min.

Fan

• Fan components made from 6 mm thick abrasion-resistant materials; designed for easy service access and quick part replacement.

Rotor — the heart of the threshing process

• The rotor is manufactured from a uniform material along its full length to avoid bearing alignment issues and to provide stable operation with reduced adjustment needs.
• Key rotor parameters:
  • Total rotor length: 3490 mm
  • Auger length with discharge: 2680 mm
  • Pipe (auger) diameter: 250 mm
  • Outer diameter of screw: 450 mm
  • Number of threshing fingers: 16 pcs

Threshing floor and concave

• Concave length: 1950 mm; diameter: 627 mm.
• Mesh sizes available Ø21–Ø25 mm, adjustable in 1 mm increments.
• Constructed from wear-resistant materials (ST355 and Hardox 450, 6 mm thick).
• Quick-change system for rapid reconfiguration for different bean varieties or peanuts.

Durable construction and materials

• Main frame: S355 structural steel.
• Drawbar: bent sheets of S420 steel.
• Pins and bearing housings: 45H machine steel.
• Cover elements: S235 steel.
• Abrasion-exposed parts: Hardox 450 or comparable materials.

Technical specifications

• Model: PWL BigBean
• Road approval: yes
• Tank capacity: 3,000 L
• Pickup construction: ≥6 mm steel; hydraulic drive; hydraulic flow up to 75 l/min; adjustable from cab
• Rotor: uniform material along whole length; number of threshing fingers: 16 pcs
• Rotor dimensions: total length 3490 mm; auger length with discharge 2680 mm; pipe diameter 250 mm; outer screw diameter 450 mm
• Concave (threshing floor): length 1950 mm; diameter 627 mm; mesh sizes Ø21–Ø25 mm adjustable in 1 mm steps
• Sieves / grain pan: suspended on rubber-covered shock absorbers; quick sieve replacement
• Tires: 460/70R24 W15Lx24
• Recommended tractor power: 140 HP; minimum 90 HP
• Overall dimensions: width 3220 mm; length 6840 mm; height 4000 mm
• Wheelbase: 1900 mm; outer wheel track: 2310 mm
• Weight: 4400 kg
• Example manufactured components: FAG, SANOK