OverviewPWL Speed Flow headers are rowless sunflower headers designed to harvest regardless of sowing direction. They are available in multiple working widths and can be fitted with an optional roto-cut rotating cutter and a shredding reel to manage stem residue. Design features reduce seed loss (up to 3%) and permit high operating speeds up to 12 km/h. Hydraulic adjustments and an auxiliary rotor support operation on uneven fields.
Key features- Rowless design: enables harvesting in any direction irrespective of inter-row spacing
- Roto-cut system (optional): rotating cutter mounted on an independent frame; cutters made of wear‑resistant steel with tungsten‑carbide coating; rotor tip speed 25 m/s; hydraulic cutting-height control from the cab
- Reel shredding/crushing: crushing reel positioned behind the shredder to protect tires and accelerate residue decomposition
- Adjustable platform width: manually adjustable crop divider platforms to minimise losses (clearance adjustable)
- Height regulation for variable sunflower heads: retractable hydraulic flap plus rotor under cutter bar bends and pulls heads to platforms for cutting just below heads
- Drive transmission: cast‑iron bevel gear drives and PTO shafts protected by a central friction clutch against sudden jams
- Renowned components: cutting unit uses components from established manufacturers for durability and reliability
- Universality: mountable on most combine harvesters with appropriate mounting frame, hydraulic couplings and gearbox reductions; tilt and frame settings for optimal working angle
- Operator control: cutting height and hydraulic flap adjustable from the cabin; cutting‑height indicator visible on the header
- High operating speed and efficiency: nominal working speed 7–10 km/h, with operating speeds reported up to 12 km/h
- Low seed loss: design ensures seed loss as low as up to 3%
Technical table (from page)Model: Speed Flow
Available working widths (m): 4.1; 4.85; 5.6; 6.35; 7.1; 7.85; 8.6; 9.35; 10.1; 10.85
Overall widths (m): 4.6; 5.35; 6.1; 6.85; 7.6; 8.35; 9.1; 9.85; 10.6; 11.35
Weight with roto-cut (kg): 2000; 2200; 2430; 2560; 2700; 2830; 2980; 3200; 3450; 3630
Number of roto-cut blades: 12; 14; 16; 18; 20; 22; 24; 26; 28; 30
Cutter system: roto-cut (optional)
Blade coating toughness: 60 HRC
Adjustable platforms clearance: 3.5–7 cm
Working speed (page): 7–10 km/h (operating up to 12 km/h noted elsewhere)
Service interval: 10 h
Technical specifications- Model: Speed Flow
- Working widths: 4.1 m; 4.85 m; 5.6 m; 6.35 m; 7.1 m; 7.85 m; 8.6 m; 9.35 m; 10.1 m; 10.85 m
- Overall widths: 4.6 m; 5.35 m; 6.1 m; 6.85 m; 7.6 m; 8.35 m; 9.1 m; 9.85 m; 10.6 m; 11.35 m
- Weight with roto-cut: 2000–3630 kg depending on model width
- Number of roto-cut blades: 12–30 depending on model width
- Cutter system: roto-cut (optional)
- Blade coating toughness: 60 HRC
- Adjustable platforms: clearance 3.5–7 cm
- Working speed: nominal 7–10 km/h; operating speeds up to 12 km/h
- Seed loss: up to 3%
- Service interval: 10 h