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Bale Wrap


For more information about bale wrap, please contact your local store or by email, Mole Valley Farmers Bale Wrap Enquiries

Follow the link for our total bale wrap instructions

Bale Wrap

When it comes to balewrap, Silotite is a global market leader, each year protecting in excess of 50 million bales in over 50 countries. The result of continuous research and development, Silotite is the product of choice for contractors and farmers who seek the combined benefits of strength, consistent performance and durability in a balewrap. Find out more about Agristretch Crystal.

Silotite is designed for trouble-free use when wrapping round and square bales, and is versatile enough to be used on almost any type of crop. It is also suitable for use on all types of balewrappers. Most major manufacturers use Silotite as their product of choice for demonstrations and trials.  

  • Multi-layer construction for superior strength

  • Unique two-sided tack for excellent sealing

  • Suitable for use on round and square bales

  • UV radiation protection for all climates

  • High tack level eliminates long 'tails' during wrapping

  • Made in the UK

Silotite Options from Mole Valley Farmers:

Reel Width

Colour

Film Length 

Film Thickness

500mm

Black

1800m

25 microns

500mm

Green

1800m

25 microns

500mm

White

1800m

25 microns

750mm

Black

1500m 

25 microns

750mm

Green

1500m 

25 microns

750mm

White

1500m 

25 microns

 

Balewrap Delivery

For delivery outside of the Mole Valley Farmers radius, the minimum delivery is one pallet drop by articulated lorry only.  A forklift must be available for unloading.

More Details

BPI Silotite Stretchwrap

In the demanding environment of silage bale wrapping, your chosen film needs to achieve maximum performance. Consistency is essential and Mole Valley Farmers have selected Silotite for trouble free bale wrapping. 

Strength

B.P.I. Silotite is manufactured form a 3-layer co-extruded film, which has exceptional mechanical properties and guaranteed stretch up to 70%, essential in producing high quality silage. The film has a high strength in both machine and transverse direction giving a consistent stretch in length and width. BPI Silotite is the machinery manufacturers preferred choice.

Opacity

Silotite is manufactured with excellent opacity to produce consistent colour dispersion when stretched. This controlled quality avoids ‘windowing’, where the film pulls into clear patches often seen in lesser quality films.

Cling

Through BPI film’s advanced extrusion system, Silotite is produced with superior cling properties which reduce tack build-up on stretcher units. This guarantees a powerful air-tight seal on every bale with a reduction in film ‘neck-down’, thus improving wrapping techniques.

Puncture and tear resistance

BPI Silotite Stretchwrap is renowned for its advanced mechanical properties giving superior performance, guaranteeing exceptional qualities in both puncture and tear resistance,  essential at all stages of bale wrapping and ejection from the turntable, to handling and stacking of the bales.

U V protection

Through controlled co-extrusion production BPI Silotite is well protected against harmful UV degradation. The UV additive, coupled with the film’s excellent colour dispersion qualities, guarantees year-round protection to both the film and the crop.

Advice and Guidance

Bale wrapping tips

Every year, at the start of the season, many avoidable telephones calls are made regarding application of silage stretch film.  We have outlined a few tips to maximise the performance throughout the season of your wrapping process and offer some solutions to overcome weather and temperature variations.

  1. Always ensure that at the start of the season the prestretcher unit has been serviced, that the rollers are free of tack build up and also free of any burrs.  Cleaning the rolls regularly will solve many problems during a working day.

  2. The point at which the film is applied to the bale may vary if the wrapper table belts are worn. This can generally be rectified by adjusting the table rollers.  It is critical that the film is first applied to the centre of the bale to ensure the correct application for the best quality silage and haylage. We recommend a minimum of 6 layers of wrap.

  3. Temperature variations during a working day may vary considerably and as a large percentage of silage film used in the U.K is black, its temperature will be much higher than the ambient temperature. This may cause overstretch and insufficient layers being applied.  The solution is to apply more layers to guarantee the crop is protected. Keep rolls boxed away from direct sunlight until needed, avoid wrapping at the peak of the day, and if available reduce stretch tension. Some manufacturers supply gears to reduce the percentage stretch during peak temperatures. Finally by changing to a coloured film, even though a little more expensive, will enable wrapping at higher temperatures.

Bale Wrap Sheet quality

Not all silage sheets are created equal and your choice of product can directly influence the quality of your conserved fodder this winter. 

After canvassing feedback from the farming industry, bpi.agri realised that farmers and contractors wanted a durable silage sheet that offered greater resistance to impact and tears without the sheet becoming overly heavy or unwieldy. 

Following an extensive development programme, bpi.agri created Visqueen Agri-S, a product able to deliver all these benefits. A super high strength silage sheet (the only one of its kind to be manufactured in the UK), Visqueen Agri-S has been on the market for several years now. Over this time, it has proven itself time and time again in the UK’s toughest agricultural environments. In addition to unparalleled durability, Visqueen Agri-S contains advanced UV inhibitors which protect it from sunlight degradation whilst in use. It boasts excellent opacity with the colour and thickness of the sheet maintaining a consistent appearance.  Its construction makes it lighter than conventional products and easier to use and easier to dispose of – an advantage considering the current changes in agricultural waste regulations.

Bale Wrapping Top Tips

UNIFORM AND WELL SHAPED BALES

Important to ensue correct and efficient wrapping. This is of particular importance when wrapping net wrapped bales as poor bale coverage by the net, resulting in 'shoulders' on the bale, will allow air to become trapped within the area between the 'shoulders' - leading to spoilage and crop loss.

HIGH DRY MATTER BALES

Higher Dry Matter (DM) bales ensure good crop fermentation and also help wrapped bales maintain their shape after compression, aiding bale storage.

WRAP WITHIN 2 HOURS OF BALING

Extended wilt times will encourage the formation of fungi and will also reduce the nutrients in the crop.

WRAP CORRECTLY

Always ensure correct film application, ideally a MINIMUM of 6 layers (essential on Haylage crop), with a MINIMUM 50% overlap. To guarantee correct film application and overlap film stretch must be controlled to the correct maximum of 70%, as an increase in film stretch causes excessive film ‘neck-down’ leading to reduced film overlap. This can be avoided by always maintaining the pre-stretch rollers are clean and free from tack build-up and maintaining correct turntable speeds, particularly in when wrapping in higher ambient temperatures. size and misshapen bales.

Remember - where a bale exceeds 1.2m diameter the wrapper cannot provide a minimum 50% overlap without increasing the number of revolutions of the bale, this will also apply when wrapping mis-shapen bales.

STORE BALES CORRECTLY

  • Very often the prime cause of crop spoilage is poorly stored bales.

  • Wrapped bales should be stacked on their ends, allowing the maximum layers of film to be in contact with the ground for added protection and eliminating the possibility of bales becoming mis-shaped by further stacking on top.

  • Low DM bales should never be stacked more than one layer high. This will avoid the seal on the film overlap opening through the constant heavy pressure exerted on them from bales on top.

  • Always store wrapped bales away from trees, to avoid bird damage. Never leave wrapped bales out in the field for extended periods after wrapping as this too could encourage bird damage.

  • Always cover the completed bale stack with Novatex Silage Net, a close-weave raffia type net on a roll, with the net suspended off the bales’ surface by old tyres (or similar) and weighted down at the floor.

Bale Wrap Troubleshooting

Silage crop losses will occur if poor or incorrect procedures are used.  The following guidelines may help to pinpoint any potential problems:

POOR QUALITY CROP

  • Crop not of optimum quality for cutting

  • Grass contaminated by soil due to mower setting too low

  • Extended wilting period allowing quality of crop to deteriorate

  • Poor shaped bales, with ‘shoulders’, allowing air to become trapped during wrapping
    The use of a net, which can guarantee full width bale coverage, will avoid this.

FILM LAYERS OPENING

  • Low cling properties of the film used

  • Insufficient layers of film applied

  • Crop, netwrap or twine protruding between layers preventing a good seal

    • Uneven film overlap on bale. This can be caused by :
    • Incorrectly calibrated wrapper
    • Insufficient number of turns of the bale (minimum 16 turns for 750mm - 24 turns for 500mm on 1.2 x 1.2m bale - for 4 layer coverage. For 6 layer coverage - turn bale 24 turns on 750mm filmand 36 turns for 500mm film.)
    • Oversize, or misshapen bales (where the greater circumference of the bale will require extra turns to ensure the correct overlap of film).
    • Film over-stretches - often caused by over-tacked pre-stretch rollers.
      The correct minimum overlap should be between 20 cm (500mm) and 30 cm (750mm).

FILM SPLITTING

Damaged film used during wrapping, causing it to tear when stretched

  • Insufficient film applied

    • Most often found in the area of the bale ahead of the last film applied, signifying the need for another turn of the bale during wrapping. Also, remember the first half turn of the bale is required to bring the film up to its full width on application to the bale. 
  • Film Over-Stretch

    • Often caused by poorer quality film in higher ambient temperatures, excessive turntable speeds when wrapping or over-tacked pre-stretch rollers causing an increase in film ‘neck-down’,leading to reduced film over-lap.
  • Bird damage

    • Usually very easy to identify, holes through all layers with crop pulled up through the film. Mostly, these holes are found on bale tops only, though can occur at ground level when bales are left in the field after wrapping. This can be avoided by using Novatex Silage Nets, raffia style netting on a roll.
  • Punctured film

    • Often caused by wrapping crop with very high dry matter (DM), or when bales are ejected from turntable directly onto dry grass stubble. For best results, always wrap in the same area of the field, to allow all bales to fall onto same smooth area on the floor.

FILM BREAKS WHEN WRAPPING

If film breaks when wrapping, a close examination of the film break profile will help to identify where the break began. From this, the cause of the break can often be traced back to either the roll, the bale or the film catching on the wrapper, depending where the break began.

The diagram below illustrates this:

 

How Much Bale Wrap?

Based on 4' round bale silage / haylage:

Film Specification

Approx. No. Bales Per Roll (4’ Bale)

 

6 Layers  

4 Layers

500mm Wide x 1800m Long

17 

26

750mm Wide x 1500m Long

22

33

Based on mini bales silage / haylage:

Film Specification

Approx. No. Bales Per Roll (Mini Bale)

 

6 Layers  

4 Layers

1800m Long x 250mm Wide  

20

30

How to calculate film usage

The number of bales that can be wrapped from a single roll of bale wrap can be accurately calculated, provided the following points are adhered to:

  • THE BALE SIZE IS 1.2m X 1.2m AND OF UNIFORM SHAPE

  • THE WRAPPER IS CALIBRATED FOR THE CORRECT NUMBER OF TURNS

4 film layers 24 turns (500mm) or 16 turns (750mm)
6 film layers 36 turns (500mm) or 24 turns (750mm)

  • THE FILM IS ACCURATELY AND CORRECTLY STRETCHED TO 70%

If all the parameters are correct (bale size, film stretch of 70% and correct number of bale revolutions) then the following figures will always be achieved.

Any variation to the above parameters will cause numbers to differ.

Given a standard bale size of 1.2m x 1.2m, applying film at 70% stretch using the correct number of turns for the film width used (24 turns for 500mm and 16 turns for 750mm for 4 layers of film) the calculations are as follows:

A = BALE CIRCUMFERENCE (sum length of all four sides of the bale)
B = TURNS OF THE BALE
C = FILM LENGTH AFTER STRETCH (film roll length plus 70%)

Multiply A by B and divide into C.

Film width 

A

B

C

Bales per roll

 500mm 

4.8m (1.2m x 4 sides)

24

3,060m
(1,800m + 70%)

26.5

750mm

4.8m
(1.2m x 4 sides)

16

2,550m
(1,500m +70%)

33.2

 

 


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