Ocmis VR8A Turbine Drive Hard Hose Irrigator

Overview

The Ocmis VR8A is a professional turbine drive hard hose irrigator manufactured by Ocmis Irrigazione in Italy, engineered for large-scale agricultural irrigation operations. This advanced reel irrigation machine features the innovative Vario Rain system with a synchronized 4-speed gearbox, providing exceptional versatility across hose configurations ranging from 110-140 mm (4.33-5.51 inches) in diameter and extending up to 730 metres (2,395 feet) in length. Designed for water-efficient precision irrigation, the VR8A combines robust construction with hydraulic automation to deliver reliable performance across diverse cropping systems and field conditions.

As one of Ocmis's best-selling turbine irrigators, the VR8A distinguishes itself through its comprehensive hydraulic control system, which includes telescopic hydraulic feet, hydraulic drawbar lifting, and automated trolley positioning. The machine's nerve centre is the Vario Rain gearbox with synchronized speeds, enabling precise water application rates while minimizing pressure losses. Equipped with either REFLEX or EXPLORER rainguns depending on configuration, and featuring the Aqua System computer control, the VR8A delivers user-friendly operation with significant water savings compared to conventional irrigation systems. The hot-galvanized chassis, epoxy-coated reel, and offset galvanized trolley mounted on five large solid wheels ensure durability and stability in demanding agricultural environments worldwide.

Key Features & Benefits

Vario Rain 4-Speed Gearbox: Synchronized speed control enables precise adjustment of irrigation speed and water application rates, optimizing water distribution efficiency and reducing waste across different soil types and crop requirements.
Comprehensive Hydraulic Automation: Telescopic hydraulic feet, hydraulic drawbar lifting, trolley lifting device, and turntable rotation provide complete hydraulic control from the tractor, eliminating manual adjustment and reducing labour requirements during setup and operation.
Turbine Drive with Double Built-In Bypass: Flanged turbine design with integrated bypass system ensures consistent retraction speeds regardless of pressure fluctuations, protecting the hose and providing reliable winding performance throughout the irrigation cycle.
Aqua System Computer Control: Integrated digital control system monitors and manages irrigation parameters, providing precise control over application rates, operating pressure, and retraction speeds for optimized water management and crop production.
Dual Raingun Options: Factory-equipped with either REFLEX rainguns (Ø 24-32 mm nozzles) for medium-range applications or EXPLORER rainguns (Ø 28-40 mm nozzles) for long-range irrigation, complete with comprehensive nozzle sets to match specific flow and pressure conditions.
Offset Galvanized Trolley on 5 Solid Wheels: Heavy-duty trolley design with five large solid wheels ensures superior stability when towing the raingun across uneven terrain, reducing soil compaction and enabling operation in challenging field conditions.
Hot Galvanized Construction: Hot-galvanized chassis and turret combined with epoxy resin coating and polyurethane paint finish provide exceptional corrosion resistance, ensuring long-term durability in harsh agricultural environments with minimal maintenance.
Flexible Hose Connection System: Flexible connection pipe accommodates movement and pressure variations, while double galvanized water inlet with Bauer couplings (Ø 108 or Ø 133 depending on hose size) ensures secure, leak-free connections and easy field repositioning.
Double Chain Retraction System: Heavy-duty double chain hose retraction mechanism provides reliable, consistent winding force throughout the operating life, reducing wear on drive components and ensuring uniform hose layering on the reel.
Safety Guard Protection: Comprehensive safety guards made of swaged galvanized steel protect operators from moving components, meeting international safety standards while providing durable protection against impact damage during transport and operation.

Technical Specifications

Specification	Details
Manufacturer	Ocmis Irrigazione
Model	VR8A
Product Type	Turbine Drive Hard Hose Irrigator
Drive System	Turbine flanged on gearbox with double built-in bypass
Gearbox	4-speed VR gearbox with synchronized speeds (Vario Rain system)
Hose Diameter Range	110-140 mm (4.33-5.51 in)
Hose Length Range	400-730 m (1,312-2,395 ft)
Raingun Options	REFLEX (Ø 24-32 mm nozzles) or EXPLORER (Ø 28-40 mm nozzles)
Chassis Configuration	4-wheel chassis with offset galvanized trolley on 5 large solid wheels
Wheels	4 wheels model 11.5/80-15.3 12PR 6F
Water Inlet	Double galvanized inlet: Bauer Ø 108 mm (110-125 mm hose) or Bauer Ø 133 mm (135-140 mm hose)
Hose Material	Polyethylene from unadulterated raw material
Chassis Treatment	Hot galvanized chassis and turret
Reel Coating	Epoxy resin coating with polyurethane paint finish
Retraction System	Double chain retraction mechanism
Hydraulic System	Rapid couplings to tractor; includes telescopic feet, drawbar lift, trolley lift, turntable rotation
Control System	Aqua System computer
Country of Manufacture	Italy

Available Hose Configurations

Hose Diameter	Hose Length	Raingun	Nozzle Range (mm)	Performance
110 mm (4.33 in)	650 m (2,133 ft)	REFLEX	24/26/28	110VR8A650.pdf
110 mm (4.33 in)	670 m (2,198 ft)	REFLEX	24/26/28	110VR8A670.pdf
110 mm (4.33 in)	700 m (2,297 ft)	REFLEX	24/26/28	110VR8A700.pdf
110 mm (4.33 in)	730 m (2,395 ft)	REFLEX	24/26/28	110VR8A730.pdf
120 mm (4.72 in)	600 m (1,969 ft)	EXPLORER	28/30/32	120VR8A600.pdf
120 mm (4.72 in)	640 m (2,100 ft)	EXPLORER	26/28/30	120VR8A640.pdf
125 mm (4.92 in)	550 m (1,804 ft)	EXPLORER	32/34/36	125VR8A550.pdf
125 mm (4.92 in)	600 m (1,969 ft)	EXPLORER	28/30/32	125VR8A600.pdf
125 mm (4.92 in)	620 m (2,034 ft)	EXPLORER	28/30/32	125VR8A620.pdf
135 mm (5.31 in)	500 m (1,640 ft)	EXPLORER	32/34/36	135VR8A500.pdf
140 mm (5.51 in)	400 m (1,312 ft)	EXPLORER	34/36/38	140VR8A400.pdf
140 mm (5.51 in)	450 m (1,476 ft)	EXPLORER	34/36/38	140VR8A450.pdf
140 mm (5.51 in)	470 m (1,542 ft)	EXPLORER	34/36/38	140VR8A470.pdf

Machine Dimensions

VR8A Dimensions

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

Dimension	Measurement
A	66 cm (26.0 in)
B	439 cm (172.8 in)
C	396 cm (155.9 in)
D	373 cm (146.9 in)
E	413 cm (162.6 in)
F	425 cm (167.3 in)
G	318 cm (125.2 in)
H	445 cm (175.2 in)
I	220-250 cm (86.6-98.4 in)
L	249 cm (98.0 in)
M	344 cm (135.4 in)
N	250-280 cm (98.4-110.2 in)

Ideal Applications

Large-Scale Arable Farming: Ideal for irrigating extensive cereal, oilseed, and pulse crops where uniform water distribution across long field runs is essential for consistent crop establishment and yield optimization.
Forage and Pasture Production: Excellent for maintaining productive grassland and forage

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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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Pressure:
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Power:
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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 gearbox with double built-in by-pass valve for pressure regulation.	Eliminates the need for external power sources, allowing autonomous irrigation in remote fields while protecting the system from pressure spikes.
4-Speed VR Gearbox	Variable speed gearbox with four distinct speed settings for precise control of irrigation rate.	Adjust water application rates to match different crop requirements and soil types, preventing over-watering and optimizing water efficiency.
Aqua System Computer	Integrated digital control system that monitors and manages irrigation operations automatically.	Reduces labor costs and human error by automating irrigation cycles, ensuring consistent water delivery even during overnight or unattended operation.
Dual Raingun Nozzle Sets	Complete nozzle sets for both REFLEX (Ø24-32mm) and EXPLORER (Ø28-40mm) rainguns included as standard equipment.	Versatility to switch between different throw distances and application rates without additional purchases, adapting to various field sizes and crop stages.
Offset Galvanized Gun Trolley	Five large solid wheels supporting an offset trolley design with hydraulic lifting capability.	Superior stability and ground clearance prevents crop damage while allowing smooth travel over uneven terrain and through tall crops.
Hot Galvanized Construction	Chassis and turret constructed from hot-dip galvanized steel with epoxy resin-coated reel and polyurethane paint finish.	Multi-layer corrosion protection ensures decades of reliable operation in wet conditions and harsh agricultural environments, minimizing maintenance costs.
Double Chain Retraction	Hose winding mechanism powered by dual chain drive system for consistent retrieval force.	Even, reliable hose retraction prevents kinking and extends hose life while ensuring smooth operation across the full irrigation cycle.
Telescopic Hydraulic Feet	Hydraulically-operated stabilizer feet with telescopic extension for leveling on uneven ground.	Quick, effortless setup on sloped or irregular terrain ensures stable operation and prevents tipping during windy conditions.
Multi-Diameter Bauer Inlets	Dual galvanized water inlet system compatible with Bauer Ø108 (for 110-125mm hose) and Bauer Ø133 (for 135-140mm hose).	Flexibility to connect to different water supply systems without adapters, ensuring optimal flow rates for your existing infrastructure.
Virgin Polyethylene Hose	Irrigation hose manufactured exclusively from unadulterated, first-grade polyethylene raw material.	Superior durability and UV resistance compared to recycled materials, preventing premature cracking and ensuring consistent performance over many seasons.

Picture

Feature Title

Feature

Benefit

Turbine Drive System

Water-powered turbine flanged directly onto the gearbox with double built-in by-pass valve for pressure regulation.

Eliminates the need for external power sources, allowing autonomous irrigation in remote fields while protecting the system from pressure spikes.

4-Speed VR Gearbox

Variable speed gearbox with four distinct speed settings for precise control of irrigation rate.

Adjust water application rates to match different crop requirements and soil types, preventing over-watering and optimizing water efficiency.

Aqua System Computer

Integrated digital control system that monitors and manages irrigation operations automatically.

Reduces labor costs and human error by automating irrigation cycles, ensuring consistent water delivery even during overnight or unattended operation.

Dual Raingun Nozzle Sets

Complete nozzle sets for both REFLEX (Ø24-32mm) and EXPLORER (Ø28-40mm) rainguns included as standard equipment.

Versatility to switch between different throw distances and application rates without additional purchases, adapting to various field sizes and crop stages.

Offset Galvanized Gun Trolley

Five large solid wheels supporting an offset trolley design with hydraulic lifting capability.

Superior stability and ground clearance prevents crop damage while allowing smooth travel over uneven terrain and through tall crops.

Hot Galvanized Construction

Chassis and turret constructed from hot-dip galvanized steel with epoxy resin-coated reel and polyurethane paint finish.

Multi-layer corrosion protection ensures decades of reliable operation in wet conditions and harsh agricultural environments, minimizing maintenance costs.

Double Chain Retraction

Hose winding mechanism powered by dual chain drive system for consistent retrieval force.

Even, reliable hose retraction prevents kinking and extends hose life while ensuring smooth operation across the full irrigation cycle.

Telescopic Hydraulic Feet

Hydraulically-operated stabilizer feet with telescopic extension for leveling on uneven ground.

Quick, effortless setup on sloped or irregular terrain ensures stable operation and prevents tipping during windy conditions.

Multi-Diameter Bauer Inlets

Dual galvanized water inlet system compatible with Bauer Ø108 (for 110-125mm hose) and Bauer Ø133 (for 135-140mm hose).

Flexibility to connect to different water supply systems without adapters, ensuring optimal flow rates for your existing infrastructure.

Virgin Polyethylene Hose

Irrigation hose manufactured exclusively from unadulterated, first-grade polyethylene raw material.

Superior durability and UV resistance compared to recycled materials, preventing premature cracking and ensuring consistent performance over many seasons.