long arm industrial sewing machine for sale

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  • 2. Sewing Technique

  • Moreover, the twin needle sewing machine is ideal for topstitching, as it creates a visually appealing finish on the right side of the fabric while also providing reinforcement on the backside. When working with thicker fabrics or multiple layers, this feature proves invaluable. It not only adds to the durability of the stitches but also elevates the overall aesthetic of the finished product.


  • A double needle leather sewing machine is a specialized sewing machine designed to sew leather using two needles simultaneously. This configuration allows for parallel stitching, which creates a more robust seam that can withstand the stresses and strains typically associated with leather items. Commonly used in the production of bags, shoes, belts, and other leather goods, this machine enables artisans to produce high-quality results quickly and efficiently.


  • Exploring Creative Possibilities with Sewing Machine Quilt Patterns


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  • Hexagonal cage has a wide range of applications, with the progress of science and technology, has been extended to the major hydraulic, civil engineering. Geotechnical engineering and other projects. In hydraulic hexagonal cage in river construction from closed utility, think appropriate and the use of hexagonal cage to fill stone, fixed river, can be used to avoid river erosion brought water and soil loss. In civil engineering projects, hexagonal cage that is suitable and the use of similar particle size volume particles to fill, mesh wall is formed between the cage, which is the stone cage retaining wall.

  • Hard black galvanized iron wire is made of low carbon steel wire by wire drawing machine. Hard black galvanized iron wire is the first feature of high hardness, bright appearance. It is mainly used for welding clothes hanger, umbrella, metal mesh, basket, basket and other metal products. Soft black galvanized iron wire is made of low carbon steel wire after annealing and softening, and then cold drawing. Soft black galvanized iron wire is the first feature of good flexibility, slightly higher hardness, bright appearance. Mainly used for metal mesh weaving technology, welding net, process products of welding.

  • Post time: 28-10-22
  • Packaging is also very important, cut wire to do a good job in the bundle with plastic film tightly packed, and then in the regular box, to fill the whole box is very full and sealed, it is best not to have a half box of conditions, if there is a half box to fill with foam and other things, so that in the transit cut wire will not receive a little damage.

  • Post time: 01-06-22

  • barbed

  • 1, galvanized wire mesh molding sheet must be packed with flat hard data, to avoid eternal deformation due to poor packaging. It IS VERY IMPORTANT THAT EACH PACKAGE AND ROLL OF RAW SHEET MATERIAL BE MARKED WITH PRODUCT NAME, STANDARD, QUANTITY, TRADEMARK, batch number, MANUFACTURER, DATE of production, STACKING SYMBOL, INSPECTOR CODE AND INSPECTION CERTIFICATE.
  • Post time: 04-07-22
  • The design is not only for ease of installation, but also for harsh terrain conditions such as cliffs, with little anchorage and little excavation to achieve a quick and easy installation. Based on the characteristics of heavy hexagonal net twisted-pair structure, it can withstand the impact of falling rock even in the case of wire breakage.

  • The coating on the surface of the welding core is called the coating. The coating of electrode plays a very important role in the welding process. If the photoelectrode without drug skin is used for welding, in the welding process, oxygen and nitrogen in the air will invade a large number of molten metal, metal iron and beneficial elements such as carbon, silicon, manganese oxidation and nitriding to form various oxides and nitrides, and residual in the weld, resulting in slag inclusion or cracks in the weld. The gas in the weld pool may produce a large number of pores in the weld. These factors can greatly reduce the mechanical properties of the weld and make it brittle.

  • Post time: 19-08-22

  • galvanized

  • Post time: 20-07-22

  • Defects such as surface film and surface inclusions can be found and treated by conventional techniques in order to remove them locally from the surface of the deposition layer. Excess foam is formed when soap and surfactants such as saponified fats are brought into the tank.

  • Cold galvanized is in the plating tank through the current unidirectional zinc gradually plated on the metal surface, the production speed is slow, uniform coating, thin thickness, usually only 3-15 microns, bright appearance, poor corrosion resistance, generally a few months will rust. With the rapid development of market economy, all walks of life are improving the production process and quality of products, galvanized iron wire industry is of course no exception. But because of the variety of galvanized iron wire, its characteristics and production technology are not the same.

  • The parameters to be provided are as follows:

  • barbed

  • In what aspects is the uniformity of galvanized wire reflected:

  • 5, according to the wire diameter thickness to adjust zinc dipping time

  • In the process of composite electroplating galvanized wire, the plating solution must be stirred to obtain the composite coating in which the particles dispersed in the matrix metal. Stirring methods include mechanical stirring, air stirring, ultrasonic stirring, bath circulation, etc. The acid activation solution in the production process can remove the corrosion products and oxide film on the surface of the low carbon steel wire without excessive corrosion on the matrix.

  • Barbed rope often appears in another model: 14*14# barbed rope, 12*12# barbed rope, 12*14# barbed rope, among which the diameter of 14# wire is about 2.0 mm, the diameter of 12# wire is about 2.65 mm, there is a non-standard 2.25 mm is also commonly used line. According to this specification, a kilogram of 14*14# barbed rope is 12 meters, a kilogram of 12*14# barbed rope is 8 meters, and a kilogram of 12*12# barbed rope is about 5 meters.
  • Post time: 13-02-23
  • Galvanized hook net standard is thorough, mesh planning: 3cm-20cm, wire planning: 1.2mm-4.5mm, galvanized hook net 6000 square meters, some standards have in stock. Benefits: The selection of low carbon steel wire, the surface of cold galvanized (electric galvanized) hot galvanizing anti-corrosion treatment, net wire strong, strong protection, anti-corrosion time is long.
  • The common specifications of small hexagonal mesh in production are: the width is 1.22m, and the commonly used width is generally 1m. In terms of length, there are basically no restrictions on small hexagonal nets. 1-100 meters can be produced. The production wire diameter of small hexagonal mesh is generally No. 27 wire to No. 18 wire, and the aperture size is 0.95cm-5.08cm.

  • The difference between them can be so divided, the amount of zinc on the surface of the high zinc thorn rope is about 5 times that of the general zinc thorn rope, which greatly extends the time of rust prevention ability. In the appearance of the two products are silver and white at the same time the metal texture is better, for the difference between the two products if it is not good to distinguish, but for long-term work experts can be able to distinguish the two at a glance.

  • Six features of spray blade stabbing rope

  • 1. The surface of the stainless steel pet cage is deposited with dust or alien metal particles containing other metal elements. In the humid air, the condensed water between the attachment and stainless steel will connect the two into a micro cell, which causes the electrochemical reaction and the protective film is destroyed, which is called electrochemical corrosion. To avoid this situation, as long as the stainless steel surface is clean, you can ensure that the stainless steel pet cage does not rust.

  • 3, galvanized wire galvanized process

  • Galvanized iron wire can be divided into hot-dip galvanized iron wire and cold galvanized iron wire according to different processing methods. Galvanized iron wire is more prominent in its corrosion resistance. Galvanized iron wire has good toughness and elasticity, the amount of zinc can reach 300 g/square meter, with thick galvanized layer, strong corrosion resistance and other characteristics. Galvanized iron wire products are widely used in construction, handicrafts, wire mesh preparation, the production of galvanized hook mesh, wall mesh, highway guardrail, product packaging and daily civilian and other fields.

  • Hot dip galvanizing is in the hot melt zinc liquid dip plating, production speed, thick but uneven coating, the market allows the low thickness of 45 microns, up to 300 microns above. It is dark in color, consumes more zinc metal, forms infiltration layer with base metal, and has good corrosion resistance. Hot dip galvanizing can be maintained for decades in outdoor environment.

  • There are many kinds of zinc plating solution, which can be divided into plating solution and no plating solution according to its properties. The galvanized liquid has good dispersion and covering property, the coating crystal is smooth and fine, the operation is simple, the application range is wide, and the long-term use is in the production. However, due to the toxic substances contained in the plating solution, the gas escaping from the plating process has great harm to the health of workers, and the waste water must be treated strictly before discharge.

  • Post time: 18-07-22