Guardian Standard Specification
Chassis
Box section chassis.
Rigid drawbar with hook pick up
Stowage point for drawbar stand.
Tank access platform with steps.
Hydraulically braked 76” 10 stud axle with parking brake.
12v air compressor.
Auto levelling air spring suspension.
Auto tracking axle.
Hydraulically operated axle lock.
Height adjustable mudguards.
Twin storage lockers.
Road traffic lights.
Stainless steel tank
3,000l, 3,500l or 4,000l stainless steel baffled tank with isolation valve.
Hinged inspection lid.
400l clean water tank.Dry tank contents sight gauge.
Triple tank rinse and tank agitation system.
Hand wash water tank.
Boom
18-30m twin fold boom.
Electro hydraulic control of boom lift, tilt and fold.
¾” or 1” stainless steel spray line with 0.5m jet spacing.
Triple outlet anti-drip nozzle bodies.
Spray line prime and purge.
Electric ball valve shutoff.
Plumbing
Hydraulically driven centrifugal pump 650l/min 7 bar.
35l capacity stainless steel venturi chemical hopper.
Rotary suction and pressure control valves.
Pressure filtration system with isolation valve.
In field wash down kit with retractable hose reel.
In cab controls
TeeJet 844 rate controller, pressure based.
Boom, steering and pump command box.
Other Options
Jet flush (Sprays clean water through jets. Operated from the cab)
GPS in field guidance system
GPS controlled automatic boom section shut off
Chafer Contour automatic boom leveling
Independent boom tilt
Airtec/AirJet system
Air brakes (Air brakes required on tractor)
Air shutoff nozzles
Dual nozzles on single spray line
Additional spray line
Quad or quin nozzles
Foam marker
Guardian Tyre Options
Kleber 300/95 R46 158A2
Michelin 340/85 R46 150A8
Michelin 420/80 R46 151A8
Michelin 16.9x38 141A8
Alliance 18.4x34 157A8
Michelin 600/60 R38 151D
Dimensions (Based on 3000l, 24m Guardian with 16.9x38 tyres fitted)
Length – 7.14m
Width – 2.31m
Height – 3.59m
Height to top of tank – 2.2m
Tractor requirements – One single acting spool with free flow return (Constant pumping spool)
Chafer Guardian Trailed Sprayer
Product Pictures
Brochure
Guardian Trailed Sprayer
The Guardian is a trailed sprayer packed with innovative features to maximise spraying performance and efficiency. It carries Chafer Machinery’s 18-30m twin fold boom along with a 3-4000l stainless steel tank. New designs and innovations such as air suspension, a low profile tank, tighter axle tracking and upgraded boom suspension help the Guardian to set a new standard for productive and accurate spraying.
Safe and smooth field/road travel
The Guardian comes fitted as standard with load compensating air suspension. Two air springs are located between the sprayer chassis and trailed arm giving a smooth and even ride. To further enhance the towing performance, the Guardian’s steering axle has been fitted with a hydraulically engaged axle-locking pin that can be operated from the cab. Air brakes can also be fitted as an option to further enhance braking capability.
Increased stability
Stability, especially when spraying on steep ground or even when manoeuvring the sprayer to the field was a key consideration when designing the Guardian. The utilisation of a stepped chassis in conjunction with a square profile stainless steel tank has helped to reduce the centre of gravity by 35% compared to previous models. Baffles inside the tank also reduce the amount liquid moving from side to side further improving stability while at the same time preventing liquid surge when braking sharply on the road. All Chafer trailed sprayers are fitted with a steering axle because of the inherent stability compared to steering drawbar alternatives.
Tighter tracking
The Guardian’s scalloped wheel arches and adjustable height mudguards allow maximum axle lock on large tyres (300/95 R46 at 72” track width). This gives the advantage of accurate tracking behind the tractor reducing the amount of crop damaged the headland.
Smoother boom ride
A combination of load compensating air suspension on the chassis, lift accumulators for extra vertical suspension as well as gimble suspension for the boom gives a smooth boom ride. Not only do these features these improve the accuracy of chemical application but they also reduce wear and tear on the boom.
Simple operation
Two compact command boxes are used to control all functions on the sprayer. The sprayer command box incorporates switches for boom operation, spray section control, pump on/off, boom recirculation and steering. A TeeJet 844 application rate controller allows for precise and rapid reactions to changes in forward speed minimising under or over application of chemical.
Coupling the sprayer to the tractor could not be simpler. Electrical systems are connected via one multi pin plug. The sprayer pump is hydraulically driven meaning there is no PTO shaft to connect. All hydraulic functions including the pump, boom and steering operate via one spool on the tractor.
Application accuracy
Application accuracy can be further improved by the use of GPS automatic boom section control. Chafer Contour automatic boom leveling helps to maintain an accurate boom height above the crop and minimized operator fatigue.
Environmental compliance
Features such as spray line prime and purge, an in field wash down lance and enhanced can rinsing nozzles are fitted as standard to help ease compliance with crop assurance and waste recycling regulations.
Product Video
Chafer Machinery Ltd
1 Cow Lane
Upton
Gainsborough
Lincolnshire, UK
DN21 5PB
Tel: 01427 838341
Horstine Farmery is trading division of Chafer Machinery
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