Overview

This document details the technical specifications, components, and optional accessories of the Link 50 and Link 55 agricultural sprayers. It covers mechanical features, hydraulic and pneumatic systems, spray distribution heads, safety devices, and operational parameters.

1. Key Components and Features

• Pressure Gauge: 100 mm diameter, easily visible from the tractor seat for monitoring spray pressure.
• Pressure Regulator: Manual control standard; optional electro-control available from the tractor seat.
• Delivery Filter: Large capacity filter with 240 l/min flow rate to ensure clean fluid delivery.
• Transmission: Poly-V belt drive designed to absorb stresses, with an automatic tensioner to prevent slipping and wear, ensuring over 5000 hours of operation and consistent spray quality.
• Safety Features: Overrunning clutch provides safety stop in case of sudden PTO stops.
• Tanks: Rotationally molded polyethylene main tank with large filling opening (Ø460 mm) and hinged lid; includes calibrated level indicators. A 30-liter fresh water hand-washing tank is also integrated.
• Frame: Articulated steel frame with electrostatic polyester powder coating for durability.
• Agitation System: Integrated hydraulic pre-mixer within the basket filter and dual agitation (hydraulic and pneumatic) to maintain solution homogeneity.
• Fan: Closed high-pressure steel radial fan (diameter 500-550 mm depending on model) with optional clutch disengagement; housed in polyethylene casing.
• Spray Control: Remote ON/OFF control via electro-valves from the tractor seat.

2. Pump and Power Specifications

• Pump: C.I.M.A. centrifugal pump without diaphragms or valves, made from anticorrosive materials, maintenance-free.
• Drive Belt: 3-V belt with automatic tensioner for reliable operation.
• Power Requirements: Tractor power required ranges from 48 kW (65 HP) for Link 50 to up to 66 kW (90 HP) for Link 55 models.
• Power Absorbed by Sprayer: Between 24 kW (33 HP) and 41 kW (55 HP) depending on model and configuration.

3. Spray Distribution and Agitation

• Rotating Calibration Discs: 15 calibrated holes allowing flow rates from 70 to 5000 liters/hour, replacing older pad systems (patent Nr. 23238).
• Sprayheads: Wide range of interchangeable sprayheads equipped with an anti-drip system (patent Nr. 1745689). Distribution devices include adjustable 'hands' and cannons of various sizes for optimal canopy penetration and crop coverage.
• Agitation: Dual system combining hydraulic and pneumatic agitation to maintain spray solution consistency.

4. Mobility and Frame Adjustments

• Articulated Joint: Allows tight turning radius without a constant velocity cardan shaft. Trailer wheels track tractor tires accurately (patent Nr. 1312881).
• Axle: Adjustable in 3 positions for different operational needs.
• Wheel Hubs: Width adjustable to suit various track widths.
• Bottom Links: Category 1-2, adjustable in 4 positions.

5. Optional Accessories and Configurations

• Hydraulic cylinder kits for arm control and electro-cylinder kits for upper cannons.
• Hydraulic swiveling devices for enhanced maneuverability.
• Spray-line rinsing tanks to improve stability when main tank is empty.
• Rear light kits, filling pipes, and multi-electrovalve control units.
• Various extension arms and collars for different sprayer widths and crop types.

6. Technical Data and Dimensions

• Fan Specifications: Steel closed radial fans with diameters of 500 mm (Link 50) and 550 mm (Link 55), speeds ranging from 3500 to 4000 rpm, air delivery between 7550 and 15500 m³/h, and air speeds from 150 to 180 m/s depending on model.
• Dimensions (Link 50): Length approx. 306-314 cm, width 109-165 cm (adjustable), height 169-172 cm, weight 510-540 kg.
• Dimensions (Link 55): Length approx. 306-370 cm, width 113-210 cm (adjustable), height 169-170 cm, weight 523-683 kg.
• Tyres: Standard 7.00-12 or 10/80-12 with optional 10/75-15.3 sizes.

7. Compliance and Safety

• Equipment complies with the European Union Machinery Directive and relevant safety standards in other countries.
• Safety devices include overrunning clutch and automatic belt tensioners to prevent mechanical failures.

Summary

The Link 50 and Link 55 sprayers are robust, versatile agricultural machines designed for efficient spraying with advanced control systems, durable components, and a wide range of customizable sprayheads and accessories. Their design emphasizes safety, ease of maintenance, and adaptability to various crops and terrains.