Corn head Master FLOW 6-75

rigidwith hydraulic adjustmentauger

Overview
MasterFlow is a corn header developed by experienced specialists for efficient maize harvesting. It features a simple, durable construction with the longest rotors on the market, enabling working speeds up to 12 km/h. A roto‑cut cutter that shreds stems at 25 m/s is standard. Continuous material flow and anti‑clogging section design ensure reliable feeding. Grain augers for lodged maize are fitted as standard. Available in working widths from 4 to 12 rows on a rigid frame and from 6 to 12 rows on a hydraulically folded frame.

System — roto‑cut
High‑quality cutting performance. The roto‑cut system can be engaged/disengaged via key and is driven directly from the harvest gearbox. Cutter mounted at the rear of each section with 60 HRC steel blades and tungsten‑carbide coating. Positioning beneath the main gearbox reduces ground‑collision risk and prolongs blade life. Eliminates the need for additional drive gearboxes. Cutter blades reach 25 m/s at the tip. Two‑ and three‑blade options available.

Gearboxes in cast‑iron housings
Designed for durability: bevel gearboxes run in an oil bath with carbon‑steel gears (50 HRC) enclosed in cast‑iron housings to withstand unexpected loads and provide long service life.

Long service life of working elements
Stripper section components are made from wear‑resistant materials with tungsten‑carbide coating (>60 HRC), enabling long operating intervals up to ~200 ha per row. Rotor design permits reversing worn blades to use the opposite cutting edge. Adjustable counter‑knives prevent wrapping and perform reliably in wet and weed‑infested conditions.

Long working sections
Headers use extended rotors (680 mm total length) and an input speed of 620 rpm at the gearbox. Longer rotors allow higher forward speeds while reduced rotor speed helps minimize grain losses, enabling work up to 12 km/h with low losses.

Adjustment of the stripper’s deck plates
Central adjustment system allows gap changes from the operator cabin (hydraulic or electric actuator depending on combine model). Individual sections can be fine‑adjusted manually via screws. Chains run on large‑diameter sprockets positioned close to the stripper gap to prevent corncob clipping and reduce adjustment frequency.

Universality
PWL headers can be mounted on most combine harvesters using the appropriate mounting frame, hydraulic couplings and gearbox reducers. Tilt and universal frame settings enable selection of the optimal working angle for field conditions.

Crop dividers
Row covers and dividers are made from flexible lightweight plastic to reduce crop losses when cobs fall on the covers. They reduce machine weight and ensure smooth material flow. Divider widths available for 70 cm and 75 cm row spacing.

Side spirals
Conical side spirals for lodged maize are standard: simple, light and durable, ensuring efficient intake of damaged crops.

Drive transmission
Rigid frames: drive transmitted externally via cast‑iron bevel gearboxes and PTO shafts for low maintenance and high reliability. Hydraulically foldable frames: drive inside the header with central trapezoidal couplings; engagement from the cabin. Machine protected by a central friction clutch to prevent damage from jams and to allow higher working speeds.

Active chain tensioners
Chains are auto‑tensioned by internal springs for correct tension during operation and easier maintenance. Chains can be removed after loosening a single screw.

Table — technical variants (rows shown left to right)
Model: MasterFlow — 4‑75, 5‑75, 6‑75, 8‑75, 6‑75 H, 8‑75 H
Overall width (m): 3.2; 3.95; 4.7; 6.2; 4.7; 6.2
Weight: 1600 kg; 1900 kg; 2200 kg; 2600 kg; 2350 kg; 3000 kg
Combine class: 120–140 kW; 140–200 kW; 160–240 kW; 220–300 kW; 180–260 kW; 260–350 kW
Working speed: 4–8 km/h (applies across variants)
Inter‑row spacing: 75 cm
Gap adjustment: Hydraulic or electric
Roto‑cut cutter speed: 25 m/s
Blade coating hardness: 60 HRC
Number of blades: 2 or 3
Service interval: 12 h

Technical specifications

• Model name: MasterFlow
• Working widths: 4 to 12 rows (rigid frame) and 6 to 12 rows (hydraulically folded frame)
• Rotor total length: 680 mm
• Input speed at gearbox: 620 rpm
• Maximum recommended operating speed: up to 12 km/h
• Roto‑cut cutter speed: 25 m/s (blade tip)
• Blade material/coating hardness: tungsten‑carbide coating, blades 60 HRC
• Number of cutter blades: 2 or 3
• Inter‑row spacing: 75 cm (divider options 70 cm and 75 cm)
• Gap adjustment system: hydraulic or electric (central adjustment from cabin)
• Gearbox construction: bevel gearboxes in oil bath; carbon steel gears hardness 50 HRC; cast‑iron housings
• Grain augers for lodged maize: standard
• Counter‑knives: adjustable distance to prevent wrapping
• Chain tensioning: automatic via internal springs
• Service interval: 12 hours
• Working elements durability: up to ~200 ha per row before major wear operations (blade reversal possible)