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Abrasion-resistant lining

Anti-abrasive linings are used to avoid excessive wear on exposed metallic surfaces which are in contact with abrasive materials; you find this in pipes, ducts, hoppers, trommels, cyclones, mills, etc. They are also used to resist high impact and reduce noise levels.

The materials used in these linings have to be very abrasive-resistant and easy to replace when worn.

The main materials used for this, for their mechanical properties, are rubber and polyurethane.

 

Polyurethane abrasion-resistant linings:

  • Polyurethane panels (without metallic structure).
  • Polyglue®: Is a metallic plate base that comes in any thickness required lined with polyurethane. The metallic plate allows it to be easily screwed on to any surface.
  • Polyurethane Deploye: Is a polyurethane panel with an expanded metal sheet inside which allows it to be screwed on to a surface, but gives it flexibility to cover curved surfaces.

 

Rubber abrasion-resistant linings:

  • Rubber Plates (with-out metallic structure).
  • Rubber with metallic plate.

 

Made from abrasion-resistant rubber with thicknesses up to 40 mm.

Declogging rods

Declogging rods are elastic polyurethane rods that are fixed to the screen. They use the machine’s vibration to move and bounce on the surface of the mesh, avoiding particles wedging and blinding the screen.

NOTE: To avoid tangling of separate declogging rods, they are joined using separators, according to the number of mobile rods.

We do not recommend their use when screening with metallic meshes with a wire diameter smaller than 2.5 mm.

Conveyor belt scraper

For the correct maintenance of conveyor belts a secondary scraper should be incorporated just after the drive pulley.

  • T-shaped scraper blade
  • Triangular scraper blade
  • Tungsten scraper blade

Polyurethane Accessories

Talleres Núñez currently has sufficient means to make any technical part in Polyurethane.
The technical department designs each mould for the correct manufacture of each accessory to the precise specification of the client, the most usual parts are:

1. Cyclone liners:
Lining cones to protect the inside walls of the hydrocyclone.

2. Wheels:
As wear-resistant treads.

3. Hammers:
Recommended for the correct installation of the TN modular system.

4. Conveyor screws:
PU components for silo mixers.

5. Conveyor belt safety skid:
Safety skid replacement part for rollers on conveyor belts.

6. Spray Nozzles:
Especially designed by TN working with a circular flow admission and an elliptical flow expulsion which enhances the spray angle of the water fan; they have a reinforced structure for greater durability.
Coupling sizes: 3/4” and 1/2”.

7. U and J-bolts:
Clamping of screening media.

8. Disc tracker for conveyor belts:
Mounted on rollers to centre conveyor belts.

9. Plugs:
For protection of screw heads or bolts.

10. PU knocking balls:
For ball trays systems, to clean clogged meshes.

11. PU Lined tension plates:
Tension plates covered in PU lining to extend working life.

12. Snow plough blades:
Polyurethane is an excellent material for snowplough blades since it has high anti-abrasive properties, flexibility, and strength and does not damage asphalt.
Talleres Núñez has great experience in the development of technical parts in Polyurethane and is able to offer custom made parts to suit any machine brand in the market.
All products made by Talleres Núñez follow the highest quality standards.

13. Shaft guard:
Protective element against abrasion for shafts and metallic profiles.

 

Rubber Accessories

Nuba Screening Media has a complete range of rubber profile screening accessories for the correct installation and support of screening media, manufactured with the best rubber to withstand heavy wear.

There are: Rubber profiles for central hold-down bar, Rubber bar rail liners, Rubber side seal profile, Rubber side plate, etc.

2. Rubber-metall plate shield:
Rubber covering 300x300mm with central fixation drill.

3. Shield plates:
Rubber covering 2000x1500mm. For other measurements, please consult.

 

TN-FIX Resin

Crusher backing resin

 

Description:

TN-Fix is a liquid epoxy resin compound, especially formulated to resist compression and impact, offering good strength support and resistance to shock vibrations.

 

Properties / Advantages:

  • Easy, quick and clean application.
  • Simple mixing without the need for tools (mixing bag).
  • Application of product without dirtying any tools.
  • Good fluidity that allows easy pouring.
  • Dimension stability with low shrinkage.
  • Hardens at room temperature.

 

Uses:

Crusher wear plate backing.

 

Packaging / Container

  • 2×10 kg Kitin a recyclable bucket containing both components to be mixed before use::
    – Base A: Resin in two plastic bags.
    – Hardener B: Two doses of hardener powder.
  • 10 Kg kit in a recyclable bucket which contains:
    – A 10 Kg kit and a hardener bag.

 

Storage and Distribution

Store TN-Fix in its original sealed package, in a closed environment, sheltered from direct sunlight and high temperature variations. Keep between 5ºC and 25ºC.
If kept in these conditions store life should be one year.

 

Characteristics:

Physical properties before hardening:

  • Density at 20ºC: 1,5.
  • Appearance: yellow liquid.

 

Mechanical properties after hardening (at 20ºC):

  • Bending strength:   37 mpa
  • Tensile strength:     78 mpa
  • Tensile modulus:     3820 mpa

 

Usage mode

  • The parts (where the product will be applied) must be clean and dry.
  • To facilitate the dismantling of the parts used, the support must be lubricated before the assembly of the new parts.
  • For temperatures under 10ºC the parts have to be heated up to 30ºC.
  • The high fluidity of  TN-Fix allows the filling of all cracks or holes. If they are not to be filled in, they must be plugged with clay, plaster, putty etc…
  • Open the bucket, pick up a resin bag and make sure that the resin is homogeneous, rolling the bag around the ground for a few minutes.
  • Add a dose of hardener and mix for 2 or 3 minutes.
  • Pour the mixture directly from the bag into the desired place.

 

Hygiene and safety:

Base A: Xn Harmful Contains styrene.

  • Flammable.
  • Irritating to eyes and skin.

 

Hardener B: C Corrosive

  • Harmful in contact with skin or if swallowed.
  • Causes burns

For more information, please contact our technical department.

Laboratory sieves

To carry out laboratory granulometric tests, Talleres Núñez supplies sieves made according to the standards ISO 3310/1 with a metallic mesh and ISO 3310/2 with perforated sheet, all made from stainless steel.

 

1. Mesh Sieves

Weight: 1 kg

Dimensions: 24 x 24 x 9 cm

Diameter (mm): 100, 150, 200, 203 (8″), 250, 300×50 H, 300×80 H, 305 (12″), 400, 450, 500, 75

Apertures (mm): 0,020 – 0,025 – 0,032 – 0,036 – 0,038 – 0,040 – 0,045 – 0,050 –  0,053 – 0,056 – 0,063 – 0,071 – 0,075 – 0,080 – 0,090 – 0,100 – 0,106 – 0,112 – 0,125 – 0,140 – 0,150 – 0,160 – 0,180 – 0,200 – 0,212 – 0,224 – 0,250 – 0,280 – 0,300 – 0,315 – 0,355 – 0,400 – 0,425 – 0,450 – 0,500 – 0,560 – 0,600 – 0,630 – 0,710 – 0,800 –  0,850 – 0,900 – 1,00 – 1,12 – 1,18 – 1,25 – 1,40 – 1,60 – 1,70 –  1,80 – 2,00 – 2,24 – 2,36 – 2,5 – 2,8 – 3,15 – 3,35 – 3,55 –  4,00 –  5,00

Standard: ISO 3310/1, ASTM E 11-04

 

2. Square Sheet Sieves

Weight: 1 kg

Dimensions: 24 x 24 x 9 cm

Diameter (mm): 200, 203 (8″), 300×50 H, 300×80 H, 400, 450

Apertures (mm): 4,00 – 4,50 – 4,75 – 5,00 – 5,60 – 6,30 – 6,70 – 7,10 – 8,00 –  9,00 – 9,50 – 10,00 – 11,20 – 12,50 – 13,20 – 4,00 – 16,00 – 18,00 –  19,00 – 20,00 – 22,40 – 25,00 – 26,50 – 28,00 – 31,50 – 35,50 –  37,50 – 40,00 – 45,00 – 50,00 – 53,00 – 56,00 – 63,00 – 71,00 – 75,00 – 80,00 – 90,00 – 100,00 – 106,00 – 112,00 – 125,00

Standard: ISO 3310/2, ASTM E323-80

 

3. Round Sheet Sieves

Weight: 1 kg

Dimensions: 24 x 24 x 9 cm

Diameter (mm): 200, 203 (8″), 300×50 H, 300×80 H, 400, 450

Apertures (mm): 0,50 – 1 – 1,80 – 2 – 2,50 – 3,55 – 4,00 – 4,50 – 4,75 – 5,00 – 5,60 – 6,30 – 6,70 – 7,10 – 8,00 – 9,00 – 9,50 – 10,00 – 11,20 –  12,50 – 13,20 – 14,00 – 16,00 – 18,00 – 19,00 – 20,00 – 22,40 –  25,00 –  26,50 – 28,00 – 31,50 – 35,50 – 37,50 – 40,00 – 45,00 – 50,00 –  53,00 – 56,00 – 63,00 – 71,00 – 75,00 – 80,00 – 90,00 – 100,00 – 106,00 – 112,00 – 125,00

Standard: ISO 3310/2, ASTM E323-80

 

4. Bottoms

Weight: 1 kg

Dimensions: 24 x 24 x 9 cm

Diameter (mm): 75, 100, 150, 200, 203 (8″), 250, 300, 305 (12″), 400, 450, 500

Architectural meshes

Meshes weaved with cable

We produce a complete range of flexible solutions for architecture in the form of woven nets. They are ideal for using on the inside and outside of buildings. They can perfectly cover large façades and wall surfaces. Various interweave patterns and types enable you to play freely with space, light and composition itself.

 

Material:

AISI 316L / AISI 304L

 

Use:

  • Facades.
  • Metallic false ceilings.
  • Parasols.
  • Guard rails and balconies.
  • Fences and meshes.
  • Roofs and bodies.
  • Separating walls.
  • Furniture.
  • Ventilation gratings.
  • Gratings for floors.
  • Drains.

 

There is the possibility of implementing other mesh variants with different technical parameters and designs according to the project requirements.

TN Decor

Perforated sheet which looks like a braided lattice for internal and external decoration, with easy application and low cost.

It can be produced in different raw materials (mild steel, galvanised steel, aluminium, stainless steel, brass…) with thickness from 0.8 to 2 mm.

Decorative steel plates

  • Perforations: Depends on design.
  • Thickness: From 0,5 mm to 1,5 mm (according to perforation).
  • Dimensions: Plates up to 1.250 mm wide (according to perforation).
    Rolled to 1.250 mm wide (according to perforation).

 

Please contact us for other available perforations.