Ocmis VR4 Turbine Drive Hard Hose Irrigator

Overview

The Ocmis VR4 is a professional-grade turbine drive hard hose irrigator manufactured by Ocmis Irrigazione, Italy's leading irrigation equipment specialist. This versatile irrigation machine represents the next generation of hard hose travellers, engineered around the innovative Vario Rain system with synchronized speed gearbox technology. Available in multiple hose configurations ranging from 82mm to 120mm diameter and lengths up to 500 metres, the VR4 delivers precise water application across medium to large-scale agricultural operations while maintaining exceptional fuel efficiency and operational control.

What distinguishes the VR4 within Ocmis's irrigator range is its 3-speed VR gearbox system that serves as the operational nerve centre, enabling operators to fine-tune retrieval speeds and water application rates with unprecedented precision. The turbine drive system, flanged directly to the gearbox with integrated bypass, ensures minimal pressure loss throughout operation whilst the hot galvanized chassis and polyurethane-coated reel provide exceptional durability in demanding field conditions. With compatibility across ROYAL, REFLEX, and EXPLORER raingun models and comprehensive nozzle sets from Ø16 to Ø40mm, the VR4 adapts to diverse irrigation requirements from row crops to pasture applications.

Key Features & Benefits

3-Speed VR Gearbox with Synchronized Control: Provides three distinct retrieval speed options allowing operators to precisely match application rates to crop requirements, soil infiltration rates, and field conditions, maximizing water use efficiency whilst preventing runoff.
Turbine Drive with Integrated Bypass: Water-powered turbine flanged directly to the gearbox eliminates the need for external power sources whilst the built-in bypass system ensures consistent performance even during pressure fluctuations, protecting mechanical components and maintaining steady operation.
Hydraulic Lifting Device and Telescopic Feet: Simplifies setup and transport with hydraulically-operated trolley lifting and adjustable stabilizing feet that accommodate uneven terrain, reducing setup time and improving stability during operation across varying field topography.
Hot Galvanized Chassis with Polyurethane Coating: Dual protection system combining hot-dip galvanization on the chassis and turret with epoxy resin base and polyurethane paint finish on the reel ensures exceptional corrosion resistance and extended service life in harsh agricultural environments.
Multi-Raingun Compatibility System: Factory-equipped with comprehensive nozzle sets for ROYAL (Ø16-22mm), REFLEX (Ø24-32mm), and EXPLORER (Ø28-40mm) rainguns, enabling operators to optimize throw diameter and droplet size for different crops, growth stages, and wind conditions without additional purchases.
Variable Track Galvanized Trolley: Adjustable wheel track configuration on the raingun trolley accommodates different row spacings and field layouts whilst galvanized construction ensures longevity even when traversing abrasive soils and crop residue.
Dual Water Inlet Configuration: Galvanized double water inlet system with Bauer Ø89mm connections for 75-100mm hoses and Ø108mm for 110-120mm hoses provides flexibility for different water source configurations and simplifies connection in the field.
Premium Polyethylene Hose Construction: Manufactured from unadulterated virgin polyethylene raw material, the hose resists UV degradation, maintains flexibility across temperature ranges, and delivers reliable performance season after season without plasticizer leaching.
Comprehensive Monitoring Instrumentation: Glycerine-bath pressure gauge, tachometer, and speed equalizer provide real-time operational feedback enabling operators to verify performance parameters and make immediate adjustments to maintain optimal irrigation uniformity.

Technical Specifications

Specification	Detail
Manufacturer	Ocmis Irrigazione
Model	VR4
Product Type	Turbine Drive Hard Hose Irrigator
Drive System	Water turbine with power take-off, flanged to gearbox with built-in bypass
Gearbox	3-speed VR synchronized speed gearbox with speed equalizer
Hose Diameter Range	82-120 mm (3.23-4.72 in)
Hose Length Range	270-500 m (886-1640 ft)
Raingun Options	ROYAL, REFLEX, EXPLORER
Nozzle Range	Ø16-40 mm (complete sets included)
Wheels	2 wheels mod. 10.0/75-15.3 10PR 6F
Water Inlet	Galvanized double inlet: Bauer Ø89 mm (75-100mm hose), Bauer Ø108 mm (110-120mm hose)
Chassis Treatment	Hot galvanized chassis and turret; reel with epoxy resin base and polyurethane paint
Safety Features	Steel safety guards (swaged galvanized and painted)
Country of Manufacture	Italy

Available Hose Configurations

Hose Diameter	Hose Length	Raingun	Nozzle Range (mm)	Performance
82 mm (3.23 in)	500 m (1640 ft)	ROYAL	16/18/20	82VR4500.pdf
90 mm (3.54 in)	380 m (1247 ft)	REFLEX	24/26/28	90VR4380.pdf
90 mm (3.54 in)	400 m (1312 ft)	REFLEX	24/26/28	90VR4400.pdf
90 mm (3.54 in)	470 m (1542 ft)	REFLEX	24/26/28	90VR4470.pdf
90 mm (3.54 in)	500 m (1640 ft)	REFLEX	24/26/28	90VR4500.pdf
100 mm (3.94 in)	340 m (1115 ft)	REFLEX	26/28/30	100VR4340.pdf
100 mm (3.94 in)	360 m (1181 ft)	REFLEX	26/28/30	100VR4360.pdf
100 mm (3.94 in)	390 m (1280 ft)	REFLEX	24/26/28	100VR4390.pdf
110 mm (4.33 in)	300 m (984 ft)	REFLEX	28/30/32	110VR4300.pdf
110 mm (4.33 in)	330 m (1083 ft)	REFLEX	28/30/32	110VR4330.pdf
110 mm (4.33 in)	350 m (1148 ft)	REFLEX	28/30/32	110VR4350.pdf
120 mm (4.72 in)	270 m (886 ft)	EXPLORER	32/34/36	120VR4270.pdf

Machine Dimensions

VR4 Dimensions

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

Dimension A	Dimension B	Dimension C	Dimension D	Dimension E	Dimension F	Dimension G	Dimension H
334 cm (131.5 in)	327 cm (128.7 in)	289 cm (113.8 in)	270 cm (106.3 in)	224 cm (88.2 in)	232 cm (91.3 in)	246 cm (96.9 in)	315 cm (124.0 in)

Ideal Applications

Large-Scale Arable Farming: Irrigates extensive fields of cereals, maize, soybeans, and other row crops with configurations up to 500 metres providing coverage for rectangular field layouts whilst the variable speed control prevents soil compaction and runoff.
Forage and Pasture Production: Delivers uniform water distribution across grasslands and fodder crops with the ROYAL and REFLEX raingun options providing appropriate droplet sizes that minimize soil surface sealing whilst promoting deep root development in permanent pastures.
Vegetable Production Operations: Supports commercial vegetable cultivation with the 3-speed gearbox enabling precise application timing during critical growth stages whilst multiple nozzle options accommodate varying canopy heights from transplant establishment through harvest maturity.
Contract Irrigation Services: Ideal for irrigation contractors servicing multiple farm clients due to the comprehensive nozzle sets, multiple hose configurations, and rapid setup capabilities provided by hydraulic lifting and telescopic feet that minimize mobilization time between sites.
Organic and Sustainable Farming Systems: Supports water conservation objectives in environmentally-focused operations through minimal pressure loss design, turbine efficiency, and precise speed control that eliminates over-application whilst the galvanized construction ensures long service life reducing replacement frequency.
Supplemental Irrigation in Variable Climates: Provides reliable drought protection for regions with unpredictable rainfall patterns where the range of hose lengths and raingun options enables operators to adapt coverage area and application intensity based on seasonal precipitation deficits and crop stress indicators.

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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.

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Distance:
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Time:
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Volume:
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Precipitation (Water Application) Rate:
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Reference: Washington State University

Feature Title	Feature	Benefit
Turbine Drive System	Water-powered turbine flanged directly onto the VR gearbox with integrated by-pass valve for automatic pressure regulation.	Eliminates the need for external power sources or engines, reducing operational costs and enabling irrigation in remote locations without electricity access.
3-Speed VR Gearbox	Three-speed variable ratio gearbox with power take-off connection for precise retrieval speed control.	Allows you to match retrieval speed to crop water requirements and field conditions, optimizing irrigation uniformity and preventing over or under-watering.
Telescopic Hydraulic Stabilizers	Hydraulically-operated telescopic feet that extend and retract for precise leveling on uneven terrain.	Ensures stable operation on slopes and rough paddocks, preventing tipping and maintaining consistent hose wind-up throughout the irrigation cycle.
Complete Nozzle Range	Three complete nozzle sets included: ROYAL (Ø16-22mm), REFLEX (Ø24-32mm), and EXPLORER (Ø28-40mm) for different rainguns.	Provides immediate flexibility to adjust application rates and throw distances for different crops, field sizes, and water pressure conditions without purchasing additional accessories.
Hot Galvanized Construction	Hot-dip galvanized chassis and turret combined with epoxy resin-coated reel and polyurethane topcoat finish.	Multi-layer corrosion protection system extends machine lifespan beyond 20 years even in coastal or high-humidity environments, protecting your capital investment.
Variable Track Raingun Trolley	Galvanized raingun trolley mounted on adjustable track-width wheels to accommodate different row spacings.	Enables the raingun to travel between crop rows without damaging plants, maximizing irrigated area while minimizing crop losses.
Dual Water Inlet System	Galvanized double water inlet compatible with multiple hose diameters (75-120mm) featuring Bauer quick-coupling in two sizes (Ø89 and Ø108).	Accommodates various farm water supply systems and allows quick field-to-field relocation without adapter hunting, saving setup time between irrigation runs.
Hydraulic Trolley Lift	Integrated hydraulic lifting device that raises and lowers the raingun trolley for transport and deployment.	Eliminates manual handling of heavy trolley components, reducing operator fatigue and enabling single-person setup even with large-diameter hose configurations.
Virgin Polyethylene Hose	Polyethylene hose manufactured exclusively from unadulterated raw material without recycled content fillers.	Superior UV resistance and burst strength compared to recycled-content hose ensures reliable service life and fewer mid-season failures during critical irrigation periods.
Speed Equalization System	Automatic speed equalizer with tachometer monitoring that maintains consistent retrieval rate regardless of hose load variations.	Delivers uniform water application across the entire irrigated strip, eliminating wet and dry spots that reduce yield and waste water.

Picture

Feature Title

Feature

Benefit

Turbine Drive System

Water-powered turbine flanged directly onto the VR gearbox with integrated by-pass valve for automatic pressure regulation.

Eliminates the need for external power sources or engines, reducing operational costs and enabling irrigation in remote locations without electricity access.

3-Speed VR Gearbox

Three-speed variable ratio gearbox with power take-off connection for precise retrieval speed control.

Allows you to match retrieval speed to crop water requirements and field conditions, optimizing irrigation uniformity and preventing over or under-watering.

Telescopic Hydraulic Stabilizers

Hydraulically-operated telescopic feet that extend and retract for precise leveling on uneven terrain.

Ensures stable operation on slopes and rough paddocks, preventing tipping and maintaining consistent hose wind-up throughout the irrigation cycle.

Complete Nozzle Range

Three complete nozzle sets included: ROYAL (Ø16-22mm), REFLEX (Ø24-32mm), and EXPLORER (Ø28-40mm) for different rainguns.

Provides immediate flexibility to adjust application rates and throw distances for different crops, field sizes, and water pressure conditions without purchasing additional accessories.

Hot Galvanized Construction

Hot-dip galvanized chassis and turret combined with epoxy resin-coated reel and polyurethane topcoat finish.

Multi-layer corrosion protection system extends machine lifespan beyond 20 years even in coastal or high-humidity environments, protecting your capital investment.

Variable Track Raingun Trolley

Galvanized raingun trolley mounted on adjustable track-width wheels to accommodate different row spacings.

Enables the raingun to travel between crop rows without damaging plants, maximizing irrigated area while minimizing crop losses.

Dual Water Inlet System

Galvanized double water inlet compatible with multiple hose diameters (75-120mm) featuring Bauer quick-coupling in two sizes (Ø89 and Ø108).

Accommodates various farm water supply systems and allows quick field-to-field relocation without adapter hunting, saving setup time between irrigation runs.

Hydraulic Trolley Lift

Integrated hydraulic lifting device that raises and lowers the raingun trolley for transport and deployment.

Eliminates manual handling of heavy trolley components, reducing operator fatigue and enabling single-person setup even with large-diameter hose configurations.

Virgin Polyethylene Hose

Polyethylene hose manufactured exclusively from unadulterated raw material without recycled content fillers.

Superior UV resistance and burst strength compared to recycled-content hose ensures reliable service life and fewer mid-season failures during critical irrigation periods.

Speed Equalization System

Automatic speed equalizer with tachometer monitoring that maintains consistent retrieval rate regardless of hose load variations.

Delivers uniform water application across the entire irrigated strip, eliminating wet and dry spots that reduce yield and waste water.