trailed double-bar mower

When they say “double-bar trailed mower?”, many people immediately think about working width and power. This, of course, is important, but over the years of working with such units you understand that the key lies elsewhere. The balance between productivity and grass maintenance is often overlooked, especially on uneven ground. A too rigid design, which is praised in advertising, in practice can tear out bumps or, conversely, skip sections. I myself believed for a long time that the main thing was steel bars and sharp knives, until I encountered real conditions in the flooded meadows in Transbaikalia.

Design that will not be shown in the catalog

Look here. Two beams, a finger-type cutting device, a tow hitch - everything seems to be simple. But this is where the first trap lies. The distance between the beams and their relative position is not just geometry, it is an adjustment to the type of soil. On soft, damp soils, the bars should seem to “float”, with minimal pressure, so as not to crash. On dry, hard pastures, on the other hand, a firm grip is needed for a clean cut. Many domestic models, especially old ones, do not take this into account - one mode for all cases.

I remember how we tested one such mower, I think fromHulunbuir Machinery Manufacturing Company ?Jiujia?. We went to their websitecn-fascar.ru— are positioned as a modern integrated enterprise with a full cycle. What attracted them is in the descriptiondouble-bar trailed mowersthe emphasis was not on tons per hour, but on adaptability to terrain. This is a rare approach. Their models, judging by the specifications, use a hinged beam connection with adjustable damping. In practice, this means that when moving to a hummock, one beam can rise without disturbing the work of the second. Trifle? No, this is a direct saving on repairs and quality of mowing.

Another nuance is weight. A light mower will “jump” at high speed, heavy - get bogged down. The ideal is distributed mass. The same “Jiujia”, judging by their materials, put counterweights on the frame that can be rearranged. This is not for show. We somehow adjusted a similar system on a slope: we shifted the weight to the upper beam, and the mower stopped digging its nose on the descent. Such subtleties are not written in the passport; this knowledge comes with experience, or better yet, from a manufacturer who himself understands agricultural technology.

Costly mistakes

The most common mistake is to chase the maximum width. We took an eight-metertrailed double-bar mower, we thought we’d speed up the work significantly. But they forgot about the tractor power and the terrain. On a flat field - yes, she walked like clockwork. But as soon as small hillocks began, the outer beam began to lag behind, creating a “wave?” - somewhere a high cut, somewhere low. As a result, I had to reduce the speed by half, and all the benefit from the width was gone. Moreover, due to the misalignment, the rods began to break.

Saving on knives is another story. It would seem like a consumable, what can one think. But the shape of the blade and the sharpening angle for the double-bar system are critical. If the knife is dull or incorrect, it does not cut, but crushes the stem. This leads to large losses of juice, the grass dries more slowly and loses nutritional value. We once tried universal knives from another unit - the result was disastrous. I had to urgently order original ones, and while they were on the way, they stood idle. Now we work only with trusted suppliers who understand the specifics. By the way, on the websitecn-fascar.ruThe spare parts section clearly states which knives are compatible with which model and for which type of grass they are recommended - this is a sign of a serious approach.

And, of course, service in the field. Many operators forget to check belt tension and joint lubrication after each day of work. And in the designdouble bar mowersthese nodes are a weak point. Dust, grass, moisture - all this quickly disables them. We had a case where, due to a bearing clogged with dust in the beam connection unit, the frame cracked. Repairs in the field are impossible, so we had to call a trailer. A simple, lost harvest is the price of inattention. Now the rules are: stop, inspect, clean. Without this - nowhere.

Practice versus theory: several real-life cases

I'll tell you about one season. We worked in a vast meadow, the soil was sandy, but interspersed with clay. The task was to quickly and efficiently mow for haylage. Used standarddouble-bar trailed mowerwith a rigid frame. The first day is great. On the second day it started to rain, and the clayey areas became wet. And then it began: the mower began to slip, the bars became clogged with wet mass, and the cut became torn. It became clear that a self-cleaning system for the beams and possibly wider wheels were needed to reduce pressure on the ground.

After this incident, we began to look for options. We came across information fromHulunbuir company ?Jiujia?. In their description there was a phrase about “adaptation to difficult soil and climatic conditions?”. Contacted and clarified. It turned out that they have an option - replaceable wheels with different profile widths and additional reflective shields on the bars that prevent sticking. Not a panacea, but it really helps. This is the very moment when the manufacturer does not just sell hardware, but offers a solution to a real problem. Their company, as they write, combines research and production - and it shows in such details.

Another aspect is safety. A trailed mower is not a front mower, it is at the back, and is not always clearly visible. Especially when turning at the edge of the field. There were incidents where fences or equipment hit. Now many, including Jiujia, put on their models not only standard reflectors, but also the ability to connect a rear view camera. It would seem that the electronics are in a simple unit. But in conditions of poor visibility (dust, twilight), this saves both equipment and, most importantly, people.

What's the result? Selection and operation

So, to sum it up informally. Choosingdouble-bar trailed mower, look not at the flashy brochure, but at the details. How are the beams connected? Is there an adjustment for the height and angle of attack of each individually? How is the problem of cleaning the cutting apparatus solved? How accessible are the main components for replacement? The answers to these questions will provide more than all the advertising numbers.

I highly recommend talking not only with sales managers, but also with the manufacturer’s technologists. For example, when studying a proposal forcn-fascar.ru, you can request not just a catalog, but technical notes on customization for different cultures. A serious manufacturer who is engaged in intelligent production for agriculture, as stated in the description of “Jiujia”, usually has such materials and is ready to share them. This shows depth of understanding.

In operation there is discipline. The maintenance schedule is stricter than for a tractor. Tension control, lubrication, checking the condition of knives and fingers before leaving. And the main thing is observation. You need to hear and see how the unit works: whether a new knock has appeared, whether it is distorted.Double bar mower- a precision instrument. It forgives fewer mistakes than a rotary one, but it also gives a different result - cleaner, more gentle on the grass stand. It's worth understanding it thoroughly.

Looking aside: what else is important?

The moment of transportation on public roads is often missed. Width is an issue. Some models allow the bars to be folded or rotated into transport position. This is not just convenience, it is a requirement of safety and regulations. Make sure the model you select meets these regulations in your region.

And the last thing - spare parts. The most reliable mower will eventually break down. It is critically important that consumables and main components (gearboxes, rods, hydraulic cylinders) are available for order, and do not have to wait for months. Here again, it is important whether the manufacturer has a developed service network or reliable distributors. When you see on a website a section with complete catalogs of spare parts with drawings, like that of the mentioned company, it inspires a certain confidence.

In general, the topicdouble-beam trailed mowers- this is not about “buy and mow?” It's about studying, tuning and careful work. Mistakes here teach you faster than any instruction, but it’s better to learn from others. I hope these practice notes are helpful. The main thing is to remember that it is not an ideal scheme that works in the field, but a specific unit under specific conditions, and it needs to be prepared precisely for this.