Ennor Engineering leads the way in disc ploughs

Ennor 36
Ennor’s 36 Series Generation II was released in 2019 to run lower cost 36-inch discs ranging from 24 to 48 plates. Standard working widths are 4.02 to 6.88m (13.18 to 22.58ft).

Ennor Engineering of Deniliquin, NSW, is a family owned business established in 1949 that has chalked up 70 years of experience in general engineering and has been building agricultural disc implements for 40 of those years.

The company has led the way in Australia in the manufacture of big disc ploughs and has been building machines with 32-inch discs for 35 years now.

Ennor also pioneered its famous oil-bath hub more than 15 years ago and at the same time released its first 40-inch disc machine.

Ennor bearing hubs
Ennor Engineering design and manufacture their own billet steel bearing housings so well they never break.

Another Ennor innovation is the incorporation of bearing hubs machined from solid billet steel because of their huge strength and durability advantage over cast hubs. Using billet steel has also given Ennor the ability to improve the hub design at any time to keep up with market requirements.

As demand increased for the Ennor machines, it would have been more economic for the company to revert to cast hubs but it chose to stick with billet steel because of the ability to machine a far more accurate housing for a precision bearing fit. It’s a decision the company has never regretted as a billet steel housing has never broken despite tens of thousands of Ennor gang hubs working long hours in paddocks across the country.

In 1998 Ennor introduced its 32 Series machines, so-called because of their 32-inch maximum disc size. One of the first models off the production line was a 12.2m (40ft), 96-disc monster weighing in at 22 tonnes, twice the size of any machines competing brands had dared to manufacture up to that point.

Ennor 32 Series
Up close to the Ennor 32 Series 12.7 with disc spacing available in 267mm (10.5in) 267mm (11.25in) (286mm) or 305mm (12in) configured as rigid, swing fold, semi-rigid hydraulic fold, or hydraulic fold.

The 32 Series has now evolved into three ranges and weight levels, the 32 Series 9.0, 32 Series 12.7 and 32 Series Contractor.

Following on its success with the 32 Series, the company embarked on the ambitious development of both the 36 Series and 40 Series, released in 2006 and 2009 respectively. These models were developed to be unstoppable through any terrain, and to be towed behind the most powerful tractors on the market. The design brief was to make an invincible machine that could, “put the entire weight of the machine on any one point and not worry it.”

The entire structure of these machines was designed using computer-based Finite Element Analysis (FEA) to ensure adequate strength. Every component had to be designed from scratch including the oil-bath gang bearing system.

To ensure reliability the bearing units weigh over 75kg and have a rated capacity of 49 tonnes as compared to a standard plough bearing with a 4.5-tonne capacity. The first 36 Series machine has now clocked over 8,000 hours of service and is still running the original bearings untouched.

Ennor 32 Series
Ennor Engineering’s 32 Series 12.7 disc plough is built on a 203x102x13mm RHS frame with standard sizes from 3.55 to 12.65m (11.65 to 41.51ft). Available from 28 through to 100 discs in 4-disc steps

Ennor’s oil-bath bearing design has been another successful innovation for the company. The system has been developed over 10 years based on the experience and knowledge gained from its first use in the 36 and 40 Series models.

Oil-bath bearings feature billet steel components, tapered roller bearings manufactured in Japan and duo-cone seals manufactured in Germany. The bearing system is expected to give a service life of 5,000 hours, with the only maintenance required being a periodical checking of the oil level and oil changes.

The oil-bath bearing system has now made its way onto the 28 Series, 28 Series Contractor, 32 Series 9.0, 32 Series 12.7 and 32 Series Contractor.

Even today, the Ennor oil-bath gang bearing system is the only one designed and manufactured in Australia for local conditions.

Another development that has been filtering into Ennor models over recent years the use of hardened pins on pivot points. This is something generally only seen on machinery like Caterpillar bulldozers because of the high cost of manufacture. Ennor has invested in specialised machinery to be able to produce this highly advantageous addition at an affordable price.

Ennor 40 Series
Ennor 42 Series machines are where stubborn pans or re-growth have to yield. Big 42-inch discs simply cut through anything the 24 to 44 plate sections come across. Standard working widths are 4.02 to 6.88m (13.18 to 22.58ft).

The comprehensive Ennor Engineering disc plough range has now developed to the point where there is a machine for any task or terrain.

32 Series machines are ideal for cereal, sugar cane and cotton, and the Contractor models are excellent for handling re-growth.

The 36 Series Generation II, released in 2019, employs 36-inch discs and is capable of penetrating down to 355mm (14-inches) deep. It is ideal for clearing re-growth, and any very deep tillage applications in sugar cane, cotton and even land forming.

At the top of the Ennor range, 42 Series machines are designed to tame stubborn hard pans and re-growth. Big 42-inch discs simply cut through anything the 24 to 44 plate sections come across. Able to penetrate down to 400mm (16-inches) deep, the discs can reach below the root system of many types of bush and scrub.

With their heavy frame designs and quality construction, Ennor disc ploughs guarantee a long working life and enjoy consistently high second-hand resale value.

Contact Ennor Engineering for any specialised build or production model availability for the coming season on tel: 1800 813 115, or email to: craig.ennor@ennor.com.au

For more information go to www.ennor.com.au.

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