Marani GT050B Turbine Drive Hard Hose Irrigator

Overview

The Marani GT050B is a professional-grade turbine drive hard hose irrigator engineered and manufactured in Italy by Marani Irrigazione, a company with deep-rooted expertise in the design and production of high-performance irrigation machinery. Built for large-scale agricultural operations, the GT050B is capable of handling polyethylene hose diameters ranging from 90 mm to 125 mm (3.54 to 4.92 in) and hose lengths extending up to 570 m (1,870 ft), making it a versatile solution for irrigating extensive field areas with consistent and reliable water distribution. The machine is powered hydraulically through a tractor power take-off connection and is designed to operate across a wide range of crops and terrain conditions.

What distinguishes the GT050B within Marani's hard hose reel lineup is its combination of robust galvanised construction, a four-speed gearbox, and a turbine flanged directly onto the gearbox with a built-in bypass — a design choice that optimises mechanical efficiency and simplifies field maintenance. The machine is compatible with both the REFLEX and EXPLORER raingun series, offering nozzle flexibility from Ø 24 mm up to Ø 40 mm to accommodate varying flow rates and coverage widths. The hot-galvanised chassis, reel, and turret provide long-term corrosion resistance, while the telescopic hydraulic feet and hydraulic lifting device ensure stable, level deployment on uneven ground. For farmers who demand a favourable cost-of-operation-to-maintenance ratio from their irrigation equipment, the GT050B is engineered precisely to that standard.

Key Features & Benefits

Four-Speed Gearbox: Provides precise control over hose retrieval speed, allowing operators to fine-tune water application rates and match machine performance to varying crop and soil requirements.
Turbine Flanged on Gearbox with Built-In Bypass: The direct-flange mounting reduces mechanical complexity and power losses, while the integrated bypass ensures safe, controlled water management during operation without the need for additional external fittings.
Hydraulic Lifting Device & Telescopic Hydraulic Feet: Enables fast, precise deployment and levelling on uneven or sloping terrain, reducing setup time and improving irrigation uniformity across the field.
Hot-Galvanised Chassis, Turret, and Reel: Triple-layer hot-dip galvanisation delivers exceptional resistance to corrosion from water, fertilisers, and outdoor exposure, significantly extending the service life of the machine.
Dual Raingun Compatibility (REFLEX & EXPLORER): Operators can select between the REFLEX raingun (nozzles Ø 24–32 mm) and the EXPLORER raingun (nozzles Ø 28–40 mm) to optimise water distribution patterns and flow volumes for different field sizes and crops.
Polyethylene Hose Made from Unadulterated Raw Material: Manufactured from virgin-grade polyethylene with no recycled content, the hose delivers consistent wall thickness, superior pressure resistance, and long operational life.
Speed Equalizer & Tachometer: Works together to maintain a consistent reel retrieval speed throughout the irrigation run, ensuring uniform water application depth across the entire field strip.
Galvanised Double Water Inlet: Allows flexible connection options from either side of the machine, improving positioning adaptability in the field and reducing setup constraints.
Glycerine-Bath Pressure Gauge: Dampens pressure fluctuation readings for stable, accurate monitoring of operating pressure, enabling better performance management and early detection of system irregularities.
Safety Guards Made of Swaged Galvanised Steel: Fully enclosing protective guards comply with operational safety requirements while benefiting from the same corrosion-resistant galvanised finish applied to the main machine structure.

Technical Specifications

Specification	Details
Manufacturer	Marani Irrigazione
Model	GT050B
Product Type	Turbine Drive Hard Hose Irrigator
Drive System	Hydraulic turbine drive via power take-off (PTO)
Gearbox	4-speed gearbox with turbine direct-flange mounted and built-in bypass
Hose Diameter Range	90–125 mm (3.54–4.92 in)
Hose Length Range	250–570 m (820–1,870 ft)
Raingun Options	REFLEX (nozzles Ø 24–32 mm) and EXPLORER (nozzles Ø 28–40 mm)
Wheels	2 × 10.0/75-15.3 10PR 6F
Water Inlet	Galvanised double water inlet
Chassis Treatment	Hot-dip galvanised chassis, turret, and reel; galvanised and painted safety guards
Country of Manufacture	Italy

Available Hose Configurations

Hose Diameter	Hose Length	Raingun	Nozzle Range	Performance Data
90 mm (3.54 in)	500 m (1,640 ft)	REFLEX	Ø 24 / 26 / 28 mm	90R4A500.pdf
90 mm (3.54 in)	570 m (1,870 ft)	REFLEX	Ø 24 / 26 / 28 mm	90R4A570.pdf
100 mm (3.94 in)	400 m (1,312 ft)	REFLEX	Ø 24 / 26 / 28 mm	100R4A400.pdf
100 mm (3.94 in)	450 m (1,476 ft)	REFLEX	Ø 26 / 28 / 30 mm	100R4A450.pdf
100 mm (3.94 in)	500 m (1,640 ft)	REFLEX	Ø 26 / 28 / 30 mm	100R4A500.pdf
110 mm (4.33 in)	300 m (984 ft)	REFLEX	Ø 28 / 30 / 32 mm	110R4A300.pdf
110 mm (4.33 in)	330 m (1,083 ft)	REFLEX	Ø 28 / 30 / 32 mm	110R4A330.pdf
110 mm (4.33 in)	350 m (1,148 ft)	REFLEX	Ø 26 / 28 / 30 mm	110R4A350.pdf
125 mm (4.92 in)	250 m (820 ft)	EXPLORER	Ø 32 / 34 / 36 mm	125R4A250.pdf

Machine Dimensions

GT050B Dimensions

Diagram shows dimension reference points (A, B, C, etc.) on the machine.

A	B	C	D	E	F	G	H
360 cm (141.7 in)	353 cm (139.0 in)	318 cm (125.2 in)	286 cm (112.6 in)	228 cm (89.8 in)	225 cm (88.6 in)	268 cm (105.5 in)	325 cm (128.0 in)

Ideal Applications

Arable Crop Irrigation: The GT050B's wide hose diameter and length range makes it well suited to large arable fields cultivating cereals, maize, sunflower, and soya, where long irrigation runs and high flow rates are required.
Forage and Pasture Irrigation: Consistent, uniform water application across wide strips supports high-yield pasture management and forage crop production, particularly in regions with seasonal rainfall deficits.
Vegetable Crop Production: The ability to select precise nozzle sizes and retrieval speeds enables tailored water application for sensitive vegetable crops that require controlled irrigation depths and frequency.
Orchards and Permanent Crops: The galvanised raingun trolley on variable track wheels allows the machine to be positioned accurately between tree rows or along orchard margins for targeted, efficient water delivery.
Large-Scale Farm Estates and Cooperatives: With multiple hose configurations available from 250 m (820 ft) up to 570 m (1,870 ft), the GT050B is adaptable to the varied field block sizes commonly found on large farm estates and cooperative holdings.
Sloping or Undulating Terrain: The telescopic hydraulic feet and hydraulic drawbar lifting system allow the machine to be stabilised and levelled on non-flat ground, maintaining irrigation performance where fixed-axle machines would struggle to operate efficiently.

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Irrigation Unit Conversions

Convert a given value and unit to different unit type. Conversions are available for flow rate, area, distance, time, volume, pressure, power, precipitation, salinity, and speed.

Click here to see unit descriptions.

Flow Rate:
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Area:
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Distance:
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Time:
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Volume:
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Pressure:
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Power:
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Precipitation (Water Application) Rate:
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Salinity:
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Speed:
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Reference: Washington State University

Feature Title	Feature	Benefit
Turbine Drive System	Water-powered turbine flanged directly onto the gearbox with a built-in by-pass valve for controlled flow management.	Eliminates the need for external power sources, allowing reliable operation in remote field locations using only water pressure to drive the reel.
4-Speed Gearbox	Integrated 4-speed gearbox connected directly to the turbine drive for precise reel retrieval speed control.	Enables the operator to fine-tune hose winding speed to match varying crop heights, soil conditions, and flow rates — delivering consistent application depth across the full run.
Speed Equalizer & Tachometer	A speed equalizer system paired with an onboard tachometer provides real-time monitoring and stabilisation of hose retrieval speed.	Maintains a uniform irrigation rate from start to finish of the run, preventing over- or under-watering caused by speed fluctuations — protecting both yield and water efficiency.
Dual Raingun Nozzle Sets	Supplied with two complete nozzle sets — REFLEX raingun nozzles from Ø24 to Ø32 and EXPLORER raingun nozzles from Ø28 to Ø40.	Broad nozzle range gives operators the flexibility to adjust throw diameter and flow rate to suit different field sizes, crop types, and available water pressure without purchasing additional accessories.
Hydraulic Lifting & Feet	Hydraulic lifting device on the trolley combined with telescopic hydraulic stabilising feet provides full hydraulic levelling and positioning.	Allows one person to quickly and safely level the machine on uneven ground and adjust the trolley position without manual lifting — reducing setup time and physical strain.
Hot-Dip Galvanised Construction	Chassis, turret, and reel are all hot-dip galvanised, with safety guards additionally swaged, galvanised, and painted.	Multi-layer corrosion protection throughout every structural component extends the working life of the machine significantly, even in wet, muddy, and chemically aggressive field environments.
Variable Track Wheels	Galvanised raingun trolley is mounted on variable track wheels with 10.0/75-15.3 10PR 6F tyres.	Adjustable track width allows the trolley to navigate between different row spacings and field layouts, while wide-profile heavy-duty tyres provide stability on soft or wet ground.
Galvanised Double Water Inlet	Galvanised double water inlet allows connection from either side of the machine.	Provides installation flexibility regardless of field layout or pump positioning, reducing the need to reposition the irrigator when connecting to the water supply.
Pure Polyethylene Hose	Irrigation hose manufactured from unadulterated polyethylene raw material with no recycled or blended content.	Virgin-grade PE construction ensures consistent wall thickness, superior pressure resistance, and a longer service life compared to hoses made from recycled or mixed materials.
Mechanical Drawbar Lift	Mechanically operated drawbar lifting system for raising and lowering the hitch point.	Simplifies coupling to tractors of different hitch heights without requiring additional tools or manual adjustment, speeding up field moves between irrigation positions.
Glycerine Pressure Gauge	Glycerine-filled bath pressure gauge provides dampened, real-time monitoring of operating water pressure.	The glycerine dampening eliminates needle flutter caused by pressure surges, giving the operator a stable, accurate pressure reading to maintain optimal raingun performance throughout the irrigation cycle.

Picture

Feature Title

Feature

Benefit

Turbine Drive System

Water-powered turbine flanged directly onto the gearbox with a built-in by-pass valve for controlled flow management.

Eliminates the need for external power sources, allowing reliable operation in remote field locations using only water pressure to drive the reel.

4-Speed Gearbox

Integrated 4-speed gearbox connected directly to the turbine drive for precise reel retrieval speed control.

Enables the operator to fine-tune hose winding speed to match varying crop heights, soil conditions, and flow rates — delivering consistent application depth across the full run.

Speed Equalizer & Tachometer

A speed equalizer system paired with an onboard tachometer provides real-time monitoring and stabilisation of hose retrieval speed.

Maintains a uniform irrigation rate from start to finish of the run, preventing over- or under-watering caused by speed fluctuations — protecting both yield and water efficiency.

Dual Raingun Nozzle Sets

Supplied with two complete nozzle sets — REFLEX raingun nozzles from Ø24 to Ø32 and EXPLORER raingun nozzles from Ø28 to Ø40.

Broad nozzle range gives operators the flexibility to adjust throw diameter and flow rate to suit different field sizes, crop types, and available water pressure without purchasing additional accessories.

Hydraulic Lifting & Feet

Hydraulic lifting device on the trolley combined with telescopic hydraulic stabilising feet provides full hydraulic levelling and positioning.

Allows one person to quickly and safely level the machine on uneven ground and adjust the trolley position without manual lifting — reducing setup time and physical strain.

Hot-Dip Galvanised Construction

Chassis, turret, and reel are all hot-dip galvanised, with safety guards additionally swaged, galvanised, and painted.

Multi-layer corrosion protection throughout every structural component extends the working life of the machine significantly, even in wet, muddy, and chemically aggressive field environments.

Variable Track Wheels

Galvanised raingun trolley is mounted on variable track wheels with 10.0/75-15.3 10PR 6F tyres.

Adjustable track width allows the trolley to navigate between different row spacings and field layouts, while wide-profile heavy-duty tyres provide stability on soft or wet ground.

Galvanised Double Water Inlet

Galvanised double water inlet allows connection from either side of the machine.

Provides installation flexibility regardless of field layout or pump positioning, reducing the need to reposition the irrigator when connecting to the water supply.

Pure Polyethylene Hose

Irrigation hose manufactured from unadulterated polyethylene raw material with no recycled or blended content.

Virgin-grade PE construction ensures consistent wall thickness, superior pressure resistance, and a longer service life compared to hoses made from recycled or mixed materials.

Mechanical Drawbar Lift

Mechanically operated drawbar lifting system for raising and lowering the hitch point.

Simplifies coupling to tractors of different hitch heights without requiring additional tools or manual adjustment, speeding up field moves between irrigation positions.

Glycerine Pressure Gauge

Glycerine-filled bath pressure gauge provides dampened, real-time monitoring of operating water pressure.

The glycerine dampening eliminates needle flutter caused by pressure surges, giving the operator a stable, accurate pressure reading to maintain optimal raingun performance throughout the irrigation cycle.