RWN Products - Silage Covers

RWN Lorry Tyre Sidewalls Covers for Silage Pits - FAQ's

Frequently Asked Questions

Placing additional weight onto sheets and nets all over the silage clamp surface is beneficial to improve consolidation, prevent air pockets under the sheet, reduce dry matter losses, improve stability at feed out and improve silage qualityRWN Lorry Tyre Sidewalls are a cheap and very effective means of applying a heavy covering of weight evenly over silage sheets and nets, covering the the entire surface of a silage clamp quickly and efficiently.

Tyre Walls cut to a high standard have only recently become available in the UK in any quantities and are new to many UK farmers.

I have put this FAQ's page together so that farmers who haven't seen tyre walls on other UK farms or overseas, have a full understanding of what tyre walls are, how and where they are used, what are the many benefits and the few downsides.

Lorry Tyre Sidewalls apply weight to silage sheets and nets quickly and effectively

Lorry Tyre Walls weigh 13kg each and cover 1m of silage. Applying additional weight to silage covers, sheets and nets improves consolidation of top layers and has been demonstrated to result in large reductions in forage dry matter lossesAre Lorry Tyre Sidewalls readily available?

How are Lorry Tyre Sidewalls delivered?

How much do Lorry Tyre Sidewalls cost?

Why aren't Tyre Walls much cheaper?

What is the Best Way of Handling Tyre Walls?

How are Tyre Walls made?

How long have Tyre Walls been available?

Do Tyre Walls contain wires?

Tyre Walls are suitable for use on top of black plastic silage sheeting as well as on top of silage nets. But when using New Lorry Tyre SideWalls straight onto plastic sheets take care to drop them flat and preferably use an old sheet over the new one for additional protection.Are the cut ends of wires a problem when handling?

Do I Need Silage Nets if I am using Tyre walls?

How well do Tyre Walls Stay on the pit?

What is the Feedback from Customers?

How do I get some tyre sidewalls?

Are Lorry Tyre Sidewalls readily available?

Tyrewalls are rapidly gaining popularity for covering silage pits in the UK. A 1000 tonne clamp can be worth £40,000. Silage is a valuable feed resource where avoidable waste and avoidable dry matter losses can no longer be tolerated. Increasingly farmers are putting much more emphasis on using high quality forage additives, Silostop oxygen barrier films and paying much more attention to sealing the pit to make it completely air tight and reduce losses.

Lorry Tyre SideWalls are delivered strapped into bundles of 27 on artic tippers, walking floors or curtain siders ready for use on silage clampsIt is clear that applying additional weight over the entire pit surface is an effective means of minimising losses.

Tyre walls are much cheaper than rubber mats or other weighting systems and much cleaner and easier to use than old car tyres.

We have seen an unprecedented rise in demand as farmers who have purchased tyre walls recommend them to their neighbours.

As a result lead times have increased and there is at times a waiting list of several months.

We would urge you to plan ahead and order in good time, in the meantime we can offer Ultra-Sile Additives, Silostop Oxygen Barrier Films, Protective Silage Nets and Gravel Bags all of which are available at short notice.

How are Lorry Tyre Sidewalls delivered?

Delivery is normally on Walking Floor Loads to most parts of England, Wales, Southern Scotland and Norther Ireland. Tyre walls are strapped into bundles for ease of handling. A full walking floor load will hold between between 1900 and 2160 tyre wallsBundles of Lorry Tyre SideWalls can easily be moved, stacked or loaded onto a farm trailer for transport to another site using a fore-end loader.

Each tyre wall will cover 1m2 of silage pit surface. Where a smaller quantity is required bundles can easily be handled with a fore-end loader and moved by tractor and trailer if you have neighbours who will split a load. Part loads or split loads are available in some areas.

How much do Lorry Tyre Sidewalls cost?

Prices depend on load size and geographical location. But to give an indication tyre walls are cheaper than silage nets and last up to 50 years whereas nets last for up to 10 years.

For use on earth bank silage pits or for storage Lorry Tyre SideWalls can be stacked directly onto the banks on the ground or on palletsEach tyre walls may be used 2 or 3 times each year. If they are written off over say 15 years they can cost less than 1 - 3 pence per tonne of silage clamped.

Covering the pit is much faster than using old car tyres and we estimate that there is a labour saving of 1 - 3 pence per tonne of silage when using tyre walls. Tyre walls can can easily work out 10 times less costly than other weighted silage covering systems such as rubber mats.

Equally we estimate that tyre walls used on top of silage nets can reduce silage dry matter losses by up to £1.00 per m2 of silage surface each time they are used, when compared with using silage nets alone.

All things considered the cost of using Lorry Tyre Sidewalls is negligible.

Why aren't Tyre Walls Free of Charge?

When covering a walled silage clamp most farmers store the Lorry Tyre SideWalls in rows leaned against the outside wall of the silage clamp. They can then be picked up and taken onto the silage clamp 50 at a time on pallet forksRecycled tyres now have a number of alternative uses which puts a value on them. Rubber tyres also have markets for use overseas and for chipping for other uses and for burning in power stations.

There are also considerable costs involved with collection, sorting, cutting to the high standard required for use on silage pits, delivery, sales and marketing.

As a result tyre walls do have a cost. They are however much more economical than most other weighted silage covering systems. Tyre sidewalls have a life of 40 - 50 years. If they are used only once each year for 15 years and completely cover the clamp they will still have an annual cost comparable to a black plastic silage sheet. A small price to pay for reduced silage waste, better quality silage and easier handling.

What is the Best Way of Handling Tyre Walls?

Tyre Walls can be loaded directly onto a telehandler at feed out and stored against a wall ready for the next clamp without any further handling by handMost farmers use pallet forks to take the tyre walls on to the silage clamp when sheeting up. A pair of pallet forks will hold up to 50 tyre walls at a time. Each tyre wall will cover 1m2 of silage pit. 50 tyre walls are sufficient to cover 50m2 of silage.

Tyre walls stack well so during feed out, the tyre walls can be thrown back on to the pit to apply additional weight behind the face. They can also be stacked on to pallets or stacked directly on the sides of earth banks silage pits ready for next season.

Alternatively they can be loaded directly onto a telehandler or dropped on to the pit floor and stacked in rows along the walls. These can then be picked up with pallet forks and leaned against the outside of the pit ready for covering the next silage clamp.

In this way most handling is mechanised and manual work is kept to a minimum. These are much easier to handle than than rubber silage cover mats and at a fraction of the price.

Lorry Tyre SideWalls stack clean and dry taking up minimal space ready for the next silage clamp. They are easily moved 50 at a time with pallet forks. 50 tyre walls will cover 50 square metres of silageHow are Tyre Walls made?

Tyre walls are made out of used lorry tyres. The tread is cut away from the side walls using a precision cutting machine. The treads are exported for use overseas. Any damaged tyre walls are rejected and chipped for burning or recycling. The remaining tyre walls are checked and hand trimmed, strapped into bundles of 27 and stacked ready for delivery to farms for use on silage clamps.

How long have Tyre Walls been available?

Tyre walls have been widely in Northern Europe, Scandinavia, Canada and the USA for many years with great success. Production in the UK using the same cutting machines used in Northern Europe and Scandinavia started several years ago and production has increased over the past couple of years.

Do Tyre Walls contain wires?

This is a question that we are often asked. Yes tyre walls do contain wires. The wires are cut at right angles so that they run straight back and are firmly anchored into the rubber tyre wall.

Lorry Tyre SideWalls do containt wires. These run back into the tyre wall and cannot come loose. They do protrude typically by 1mm - 3mm when new but rust away to dust over the first 2 - 4 seasons useLorry tyres are a much stronger construction than car tyres and the tyre walls are flat, so they do not crease if run over by a tractor wheel.

Tyre Walls are much wider than a car tyre and with a low centre of gravity they will not roll off a silage clamp. Consequently it is highly unlikely that they could accidentally get loaded into a diet feeder under normal use. We have had no reports of any tyre walls getting into feeder wagons.

Tyre walls cut using the same machines have been widely sold to Danish farmers for well over 35 years by the designer of the cutting machine. During that time to the best of his knowledge there have been no problems with wires breaking out or coming free of the rubber tyre wall.

All tyre walls are hand trimmed at the factory since there are always a few wires up to 10mm long on the final 10mm of the cut as the tyre wall comes off the cutting machine. Every effort is made to ensure that these are trimmed and that all tyre walls are properly checked, before despatch.

We do however suggest that for added security customers do check the newly delivered bundles in case any exposed wires have been missed. If there are any they can easily be clipped off before taking the tyre walls onto the silage clamp.

Are the cut ends of wires a problem when handling?

An example of a tyre wall after 3 years use on an outside silage clamp. Exposed cut ends of wires have mostly rusted down to dust. Eventually the edges become relatively smooth with no wires exposedTyre walls are picked up by the inner rim of the tyre wall which stands proud of the silage sheet. This is smooth from against the wheel rim and easy to handle.

The outer edge is rough and the cut ends of wire can protrude by typically up to 1mm - 3mm when the new tyre walls are delivered. Normally the tyre walls are pulled off pallet forks by the smooth inner edge and dropped flat without need to touch the outer edge but please take care when handling freshly cut tyre walls. Gloves are advisable.

The cut ends rapidly begin to rust and will powder away to dust normally over around 3 - 4 seasons depending on the weather and storage conditions. During the first 2 -3 seasons it is sensible to take a bit of extra care to drop the tyre walls flat when placing directly straight onto black plastic sheets.

It is best to use an old black sheet over a new sheet or a net for additional protection. Having said that many farmers have used tyre walls straight onto black plastic very successfully. We do not however recommend using directly on to thin 40 - 50 micron cling films or Silostop with out additional protection.

Do I Need Silage Nets if I am using Tyre walls?

When using New Lorry Tyre SideWalls straight onto plastic sheets take care to drop them flat and preferably use an old sheet over the new one for additional protectionUniversity research in the UK has clearly shown the large reductions in dry matter losses can be achieved by applying weight evenly over the top of silage nets.

Equally a large body of research worldwide has demonstrated the large reductions in dry matter losses and spoilage which can be achieved by using Silostop Oxygen Barrier Films to exclude oxygen during the first few days of the silage fermentation process.

Tyre Walls can be used without nets and nets can be used without tyre walls. Nets prevent damage to the air tight plastic silage coverings but do not apply weight. Tyre walls apply weight to the surface of the clamp but do not prevent birds, wildlife and cats and dogs from damaging the sheets. Tyre walls apply 40 to 60 times more weight than most protective nets and woven silage covers, 13kg per square metre compared with 200gms to 300gms.

Silage nets do not replace the need to apply weight to the silage surface

For best results always use an Oxygen Barrier Film, Nets and Tyre walls or other weighting system over the nets. All are cost effective.

How well do Tyre Walls Stay on the pit?

For best results we recommend using a Silostop Oxygen Barrier Film, Protective Silage Nets and then Lorry Tyre SideWalls. If used without side sheets then Gravel Bags should be used against the wallsTyre walls are slightly depressed on the outside edge. The outer edge sinks into the silage tightening the sheet and also preventing sliding. The 1 metre wide foot print and low centre of gravity prevents them from rolling off the silage clamp as is often the case when old car tyres are placed on steeply sloping clamps.

On steep slopes they cannot be stacked against each other like full tyres but will happily sit on anything up to a 40o slope. We do not recommend building any silage pits with slopes greater than 30o since these cannot be rolled effectively and invariably result in large amount of spoilage and shoulder waste.

Tyre walls will stay in place far better than gravel bags on slopes and unlike rubber mats, tyre walls do not blow off the clamp on exposed, windy sites.

What is the Feedback from Customers?

Lorry Tyre SideWalls make a very tidy job and are easy and cheap to use. The majority of farmer who use them have recommended them to their friends and neighboursThe vast majority of users have been full of praise for the product. Quite often once farmers have tried tyre walls they refuse to continue using car tyres and order more tyre walls for the rest of their clamps. In fact the majority of farmers who have purchased tyre walls have recommended them to their friends and neighbours.

We have also had a very small number of customers who have been concerned that tyre walls do contain wires or that the cut ends of wires are exposed around the outer edge.

We have had many repeat orders from farmers who have tried the tyre walls on top of nets and found that they have major savings in top waste, silage with better feed value and less spoiled silage to fork off and throw away.

Improved clamp covering systems can have a massive effect on profitability and offer an extremely attractive investment for any dairy farmer

Here are some comments from customers:

"Best thing we've ever used. The staff are all laughing and joking when they are sheeting up. Unheard of when we used tyres. And you cover such a lot of ground so quickly. Used with Silostop Orange Film and Nets, no waste on the top at all"

"We have hardly any waste since we have put the sidewalls on"

Paying attention to sealing a silage clamp quickly, making it completely airtight and weighting the sheets as soon as filling is completed costs very little and  makes a massive difference to the level of dry matter losses, feed value and quality of the silage."Best send another load. The lads won't use tyres anymore"

"Can't believe the difference in the top of the silage "

"I have several neighbours that want a load "

"Takes no time at all to sheet up"

"Tyrewalls do a brilliant job. We really like them"

"Tried rubber mats but these are much better and don't cost an arm and a leg"

"Much faster than putting tyres on and they are dry. Non of the crap"

"You might be getting some calls. A lot of people have been to have a look at them"

"We like these a lot. We had been getting waste on the silage ever since we stopped using tyres and these are so much better to use than tyres"

"Much tidyer than tyres"

Effective sealing makes a massive difference to the level of dry matter losses, feed value and quality of the silage.

Lorry Tyre SideWalls used over Silostop Nets and Oxygen Barrier Film are a much better way of covering and effectively sealing a silage clamp. Order now for next seasonHow do I get some tyre sidewalls?

Availability of Tyre Sidewalls can be limited, especially during silaging and maize harvesting season. Please order well in advance.

If you have further questions and would like to know more or would like to speak a farmer who has used tyre walls on their silage pits please get in touch.

To place an order or for advice on making better silage, reducing waste and cutting feed costs or for prices and availability of  Lorry Tyre SidewallsSilostop Oxygen Barrier Film Protective Silage NetsGravel BagsSilage Additives  and  Silage Additive FAQs
contact Richard Webster.

Independent Suppliers of Quality Feeds and Associated Products
for the High Yielding Dairy Cow

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