From tillers to power rakes, we put the latest machines through their paces in trying conditions. By Sally Dairy
THE REVIEW PANEL
Rob Pinion, grounds person, College of West Anglia, Wisbech
Barbara Welbourn, assistant grounds person, College of West Anglia, Wisbech
Carrying out a test of cultivation equipment in December was always likely to be plagued by the vagaries of the British weather. That is why we chose to test the equipment in the eastern part of the country. But even at Wisbech the rain can be torrential - so much so that the normally free-draining soil became saturated.
Although the conditions for testing could hardly be further from ideal, we were able to look at six items of cultivation equipment. In the pedestrian section we chose the Husqvarna CRT51 as an example of a wheeled rotary cultivator. It turned out to be a surprise when it came to coping with sticky, waterlogged soil.
The Husqvarna T200 compact and Mantis tiller were selected as examples of small, narrow-width rotary tillers, while the Efco MZ2090R is a full-width tiller. Finally, we looked at two machines from BLEC. The BLEC/ Harley power box rake is a tractormounted, PTO-driven unit for preparing seedbeds and the BLEC SR3H pedestrian rotor rake is a walk-behind unit for use with Honda power tillers.
The rains eased for the duration of the tests but the soil remained saturated throughout this time. The wind was a cold easterly.
It's a traditional-looking cultivator that could have come straight out of BBC TV series The Good Life. But it's a winner. When the tillers in our test finally succumb to the weight and stickiness of the unseasonably wet soil, the tines on the CRT51 keep on turning. This rotary cultivator doesn't know when to give up.
The principle for turning the soil is a tried and tested one, but there is nothing old-fashioned about this machine. In fact, it has a lot of nice, modern features. For starters, it has a modern 5hp (3.7kW) B&S OHV engine, making it easy to start and giving it all the muscle needed for an effective job in densely packed earth and even in the treacle-like conditions encountered on our test site.
We find the machine highly manoeuvrable, thanks, no doubt, to the large 41cm chain-driven wheels with heavy chevron treads that really grip. A counterweight at the front also helps increase the weight on the wheels and gives the machine near-perfect balance.
The working width is just 43cm. But while some contractors might be looking for a little more productivity, there can be no disputing that the CRT51 does an excellent job. Its counter-rotating tines ensure the soil, despite the conditions, is cultivated to an enviable standard. This cultivator digs deep into heavy soils. It can also be used to prepare the surface for a seed bed. The CRT51 can operate at seven different depths down to a maximum of 16cm.
Controls are simple to use and operator comfort is assured by height-adjustable handlebars. The handles do not offset but with OPC on both sides, our testers have no difficulty walking to one side of the machine to eliminate footprints in the freshly turned earth.
The CRT51 has two gears - one forward and a very handy reverse gear. The drive can be disengaged, enabling the unit to be pushed in free-wheel mode. We find it quicker and easier to travel between sites this way but it will also be a useful feature for moving the machine around the shed.
We are impressed with the handlebars and the layout of controls. Everything is within easy reach and where you would expect to find it. This really is a comfortable machine to use. Top marks to Husqvarna.
SPECIFICATIONS!
Engine B&S OHV 5hp
Working width 43cm
Working depth Seven-stage adjustment down to 15cm
Rotation speed 190rpm
Transmission One forward and one reverse
Wheels 41 cm with chevron tyres
Fuel tank 2.8 litres
Weight 90kg
Price ex VAT £730
Contact Husqvarna on 01453 820300
Mantis tiller
If, like us, you have wondered what the point is of a small, handheld, narrowwidth cultivator such as the Mantis, then it is time you took a closer look. The Mantis is muscle without bulk.
There is no disputing that this tiller is compact. It only weighs 11 kg, arrives at our test site in a handy easy-to-carry forthat and is uncurled to give a comfortable working tool. So, the first thing to recognise about the Mantis is that it could be useful if you are short on space in the van or trailer when travelling from job to job or if you need to carry equipment across site.
The second thing to realise about the Mantis is that it is vigorous and a hard worker. It's also quick. There is nothing unusual about starting the unit. There's an "on" switch, a primer bulb, choke and pull cord. If you are not used to small tillers, you find it takes a few minutes to discover the best method of working. With the Mantis the tines turn forwards so you should let the tines dig down to create a hole and then pull the unit backwards.
With a little practice it becomes a relatively easy process to create a decent tilth to a depth of 25cm. It's certainly a very quick process - these tines travel at a speed of 240rpm. It's not a clay breaker, but it could improve the soil with regular use. And, by swapping the tines over, you can also cultivate to a shallow depth for weed management purposes. It should prove useful for working narrow rows or between plants in a border.
There is a choice of electric, twostroke or four-stroke versions of the Mantis. We use the four-stroke in our test. Noise is not an issue with this model. Pinion senses some vibration but, as with most cultivation equipment, vibration does partly depend on the soil and conditions at the time of use.
We reckon there are plenty of situations where the Mantis could prove beneficial. We used it to work a section of border in a glasshouse but it could be used to rip through the soil of old bedding displays in preparation for replanting - especially on those hard-to-get-to sites such as roundabouts. We also suggest the Mantis could be used to "fluff" up compacted surfaces - such as hardened bunker sand.
A range of attachments, including furrower, border edger, de-thatcher and lawn aerator, further extend the use of the Mantis.
SPECIFICATIONS
Engine L1hp(25cc) single cylinder four-stroke
Working width 22cm in tiller mode
Working depth 25cm
Rotation speed 240rpm
Fuel tank 0.55 litres
Weight 11 kg
Accessories Planter, plough, plant guard, edger, de-thatcher, aerator, crevice cleaner, weed reducer, wheel set, kick-stand
Price ex VAT £300
Contact Mantis UK on 08454 585868
Husqvarna T200 compact
Its working width is fractionally larger than the Mantis, but the T200 has the appearance of a more "regular" tiller. It has the two-handled styling we expect of a typical "kitchen-garden tiller".
The T200 is lightweight - just 12kg - and the handles fold, so it's easy to lift the machine in and out of a van. Carrying the unit is made even easier by an appropriately positioned grip handle.
We put the T200 to work in the wet, sticky soil and waited for the tines to clog. We don't expect it to take long. And sure enough, the awful conditions on the day of the test prove too much. However, before the tiller picks up more soil than the unit itself weighs, we're able to see the potential to do a good job. Certainly vibration levels are low on this machine.
Before the work was abandoned we noted that, for the small size of tiller, this one has plenty of power. It is equipped with an easy-starting 1,5hp Honda GX31 OHV engine and has a heavy-duty worm gear transmission with triple bearings, giving one forward speed. There is no reverse. The tines rotate at 190rpm and easily dig to a depth of 15cm.
We reckon the price of £320 ex VAT represents good value for money. It is also worth noting that there are various attachments - moss rake, ridger, edger, scarifer - to increase the versatility of theT200.
We would like to work with this tiller again - but in more suitable conditions - and perhaps get a chance to try some of the accessories.
SPECIFICATIONS
Engine 1.5hp Honda GX31 OHV
Working width 24cm
Working depth 15cm
Rotation speed 190rpm
Transmission One forward
Fuel tank 0.7 litres
Weight 12kg
Price ex VAT £320
Contact Husqvarna on 01453 820300
Efco MZ2090R
Designed for market gardens, ornamental gardens and smallholdings, the MZ2090R is a tough but nimble tiller, with a useful 80cm working width, that could find work with landscapers and professional gardeners. But like all equipment, it should be used in the right conditions.
The MZ2090R is powered by a Honda GC160 5hp engine and has one forward gear and one reverse. Lifting the tiller from the back of a van is really a twoperson job but, once it is on the ground, its front transport wheels make it a doddle to push it to the work area. Lateral transport wheels would make travel even easier but are only available as an optional extra.
The MZ2090R is of typical "tiller" design - the rotor element bearing three sets of tines on either side of the drive. The tines and rotor are protected by discs on the outside. In fact, this model brims with good engineering and solid construction. The chain transmission has a reinforced guard to protect it from the impact of projected stones and accidental bumps.
Operation of a rotary tiller is something you either love or hate. It can be a battle to hold some tillers in position while they cultivate down to the required depth. Our testers, however, find the MZ2090R is trying to bury itself on more than one occasion.
Using and controlling the MZ2090R is aided by the adjustable handlebars. These adjust up and down as well as sideways - all at the turn of a lever - to ensure an optimum working position can be attained for any given terrain and condition.
Controls are always only a fingertip's reach away and are very simple to use. The MZ2090R has a safety clutch that stops the machine in the event of loss of control but it is also useful when transporting the machine or if you wish to suspend the work temporarily without stopping the engine. Standard equipment includes a drag bar - making it possible to adjust tilling depth and working speed. In use we also find the reverse gear is a must-have feature for manoeuvring the machine and repositioning it for work.
With so many good features, we are disappointed not to be able to use this tiller for longer. However, we have no control over the weather and, with torrential rain during the previous 24 hours, the soil is saturated. It is not long before the rotor is turning a giant roll of mud.
We hope to review the Efco again under more suitable conditions.
SPECIFICATIONS
Engine 5hp Honda GC 160
Working width 80cm
Working depth Down to 15cm
Transmission One forward and one reverse
Price ex VAT £657.90
Contact Emak UK on 01543 687660
BLEC/Harley power box rake
As the BLEC's representative unloads this machine from the lorry, he tells us it is one of the company's biggest sellers and that it is not often that he has to put it back on the lorry after completing a demonstration. Half an hour later we can see why that is the case.
The BLEC/Harley power box rake is a time saver. It is a three-in-one, singlepass machine and works as a rotary tiller, a box grader and a stone rake - all at the same time. We test the T-6 model; it requires a 25-45hp tractor, features hydraulic bi-angling to left or right and has a 1.82m working width. It is also available in 1.27m, 1.45m, 2.1m and 2.3m sizes.
We put the power box rake to work on a spare piece of grassland. The first things we notice are the simple design and remarkable strength built into this machine. We are talking heavy-duty frame, oiled-bath double-fifty roller chain and triple-sealed bearings. The teeth on the rotor are carbide-tipped and shaped to give the best possible tilth. On our grassland site, the machine has no trouble tilling into the hard compacted surface, pulverising it and leaving a perfect "fluffy" seedbed.
Speed and depth of cultivation can be matched to soil conditions. You can also choose the size of material you want to leave in the seedbed. Adjusting the gauge wheels also allows for skimming ifyouwanttooverseed.
And with this power box rake, what you see is what you get. There are no hidden extras. The unit comes with all electrical and hydraulic connections included. We reckon this implement represents serious value for money.
This is a machine you should look at if you need to increase work rates when creating areas for seeding or turfing. In addition, BLEC offers a laser system to give total accuracy in preparing new sports pitches.
SPECIFICATIONS
Working width! 82m
Working depth Adjustable
Tractor 25hp to 45hp required
Weight 425kg
Price ex VAT £5,600
Contact BLEC on 01 778 346222
BLEC SR3H pedestrian rotor rake
This is the machine to place your trust in if the site can't be accessed and worked by the tractor-mounted BLEC/Harley power box rake. We test it in the glasshouse border soil at Wisbech College.
The SR3H has been designed specifically to attach to power tillers such as the Honda F720 or F810, and does a three-in-one job to level, grade and rake the soil into a condition ready for seeding or accepting turf. It beats hand-raking and will save a lot of time and effort. BLEC sells the rake already fitted to the F720 or on its own for fitting to your own power tiller or some two-wheel tractors such as BLEC, BCS.Agria and SEP.
The design is simple but remarkably effective.The hydraulically powered rake, bearing all-steel tines, is mounted to a heavy-duty frame with adjustable rear castor wheels. The rotor teeth penetrate soil - even heavily-compacted soil - and fork out stones and debris. At the same time, the contra-rotating tines also level and grade the surface. The adjustable rear castor wheels control the depth
Setting up the machine is straightforward and angling the rotor is controlled hydraulically - just nudge the lever. With the Honda power unit equipped with high- and low-speed PTO, you can make the rotor work at slow speed for initial raking or high speed to give the desired finish. Steering the machine is simple thanks to slewing clutches fitted to the power unit.
What we especially like about the BLEC rotor rake is the smoothness of running. It doesn't take long to master the controls and, attached to a Honda power unit, we find it is easy to manoeuvre into position. Taking the rake off takes seconds to allow access through gateways. Other attachments, including rotary brush and spring-tine rotor, further extend the use of this kit.
Top: the rotor angles hydraulically. Above: SR3H has been designed to fit power tillers
SPECIFICATIONS
Working width 91cm
Working depth Adjustable via rear castor wheels
Transmission Depends on power unit
Weight 145kg alone, 440kg when fitted to Honda F720
Price ex VAT £3,350 for the rake, £5,400 as a complete system with Honda F720
mantis tiller