Views: 0 Author: Site Editor Publish Time: 2026-08-26 Origin: Site
A Raschel warp knitting machine is an industrial textile machine that manufactures nets, mesh fabrics, and technical textiles from multiple yarns running parallel in the machine direction. Raschel warp knitting machines produce net-like products used in clothing, commerce, and daily life. Raschel warp knitting machines are mainly designed for open mesh fabric, shade net, and fishing structures.
The ordinary model has 4-12 bars; the multi-comb lace model can have 32-78 bars, supports large traverse movement, and can produce pressed yarn, weft insertion, and complex hollow patterns.
The electronic model is equipped with EL electronic traverse and jacquard devices. No chain blocks are needed for flower changes, and the pattern modification is quick.
Traditional latch needles, modern multi-purpose grooved needles (composite needles), which can be adapted to various raw materials such as roving, monofilament, film, and flat yarn.
Modern standard equipment is equipped with EBC electronic let-off and EAC electronic draw-off. Different bar bars can be independently let-off, suitable for elastic yarn, roving, flat yarn (sunshade net, protective net).
The machine structure is different and can weave single-sided and double-sided fabrics:
Single needle bed: mesh, sunshade net, anti-bird net, lace, stretch net, decorative fabric.
Double needle bed: extra-wide sunshade net, fruit bag, vegetable bag, shopping bag.
Compared with ordinary rapier machines, flat looms are twice as fast.
2.1 Based on the structural characteristics of the Raschel machine, a wide range of fabrics can be produced and can be adapted to different raw materials.A wide range of applications: polyester, nylon, spandex, cotton yarn, PP flat yarn, monofilament thread, and functional yarn can all be produced.
2.2 Due to its exceptionally high operating speed, the machine delivers remarkable production efficiency, making it particularly suitable for manufacturing products with substantial market demand and low production costs—such as sunshade nets, agricultural nets, and construction safety nets.
2.3 The complex machine structure enables the production of a wide variety of product designs and specifications, with extensive application fields; demand exists across various sectors including agriculture, fisheries, defense industry, garment manufacturing, and consumer goods.
2.4 The fabric produced by the Raschel machine possesses a certain degree of elasticity—this characteristic can be both an advantage and a disadvantage, depending on the specific application scenario.
A Raschel warp knitting machine works as part of a complete net production system. The exact process depends on the raw material, yarn-feeding method, machine model, and net product being manufactured.
For example, a shade net made from PE flat yarn requires a different yarn preparation and feeding route from a fishing net made from nylon or polyester multifilament yarn. Therefore, the production process should be configured around the finished product rather than using one standard setup for every net.
For flat-yarn nets, the Flat Yarn Making Machine CY uses an extruder to melt and plasticize the raw material. The material passes through a die, cooling system, drawing device, and winding unit to produce continuous flat yarn.
For selected PE flat-yarn applications, the ISO Slitting and Extension Machine can be connected directly to the Raschel knitting machine. PE film is cut by razor blades, stretched through a heating plate, and transferred to the knitting machine through guide rollers.
This direct-feeding method can replace traditional creel or beam feeding for suitable applications. It helps provide stable yarn feeding, prevent yarn twisting, and reduce raw-material waste.
For products that use warp beams, the Warping Machine CY winds multiple arranged yarns onto a warp beam. The prepared beam can then supply yarn directly to the warp knitting machine.
After preparation, the yarn is delivered to the knitting section through a feeding or let-off system.
Raschel machines use different systems according to their intended applications:
The RS machine uses a three-roller positive yarn let-off system with EBA.
The RS-1 can use 21-inch, 30-inch, or 40-inch beam active let-off equipment with EBA.
The HSRO uses a three-roller positive yarn let-off system.
The SRO uses an EBA-controlled yarn let-off system.
The SROP uses a negative yarn let-off system.
The SRC uses a three-roller positive yarn let-off system.
The DRCA double needle bar machine uses open cam gearing and three-roller positive yarn feeding.
The DRCP uses open cam gearing with a negative yarn let-off system
The appropriate feeding system helps supply yarn consistently to the knitting area. Electronic EBA control also makes it easier to adjust the yarn delivery amount for different net specifications.
Once the yarn reaches the knitting area, the machine drive system coordinates the knitting elements to produce the required mesh structure.
The needles, gauge, and number of guide bars are selected according to the finished product. Raschel machines may use compound needles, block latch needles, or individual latch needles.
Changing the machine configuration allows the production of different mesh sizes and net structures. For example:
RS and HSRO machines can produce shade nets, agricultural nets and safety nets.
SRO and SROP machines can produce knotless fishing nets, sports nets and aquaculture nets
SROP machines can also be configured for anti-drone nets
DRCA double needle bar machines can produce fruit and vegetable mesh bags
DRCP machines can produce thicker sports, protective and packaging nets
DR298 machines can produce spacer fabrics, cushion materials and home-textile fabrics
After the net is knitted, it is removed from the knitting area by the take-up system. The manufacturer provides different take-up configurations. For example, the DRCA fruit and vegetable mesh bag machine uses a separately standing take-up system, while RS-series machines can be equipped with a friction roller or individual batching devices.
For a PE flat-yarn shade net, a typical production flow is:
Raw material → Film blowing machine → Slitting and extension machine → Raschel shade net machine → Finished shade net
For a monofilament shade or agricultural net, the process may be:
Raw material → Monofilament making machine → Creel or warping system → Raschel knitting machine → Finished net
For a knotless fishing net, the production flow can be:
Raw material → Monofilament or multifilament yarn preparation → Creel or warp beam → SRO or other suitable fishing net machine → Finished fishing net
For fruit and vegetable mesh bags, the production line may combine flat-yarn preparation with a DRCA double needle bar Raschel machine and a separately standing take-up unit.
Because different nets require different yarns and machine configurations, the manufacturer designs the production process according to the customer’s net sample, mesh size, working width, raw material, and required capacity.
Before requesting a quotation, define the following requirements.
First identify the finished product, such as:
Shade net
Fishing net
Safety net
Bale net
Fruit or vegetable mesh bag
The finished product determines whether a single or double needle bar machine is required.
Provide the yarn material, diameter or denier, and whether it is flat yarn, monofilament, or multifilament yarn.
Confirm the mesh shape, opening size, fabric weight, density, width, and required strength. A net sample or detailed specification can help engineers recommend the correct gauge and guide bar arrangement.
Choose the working width according to the finished product and production plan. An unnecessarily wide machine can increase equipment and operating costs, while a narrow machine may limit output.
Actual output depends on the yarn, mesh pattern, machine width, operating speed, downtime, and operator experience—not only the machine’s maximum speed.
A complete net production line may include yarn-making equipment, a warping machine, a Raschel knitting machine, a take-up unit, and finishing equipment.
A manufacturer can recommend a production-line configuration according to the customer’s product, raw material, factory conditions, and investment budget.
Q: What is the difference between Raschel warp knitting machines and Tricot warp knitting machines?
A: Raschel warp knitting machines are mainly designed for open mesh, netting, and technical textile structures, while Tricot warp knitting machines are generally used for finer, smoother, and lightweight apparel fabrics.
Q: Can one Raschel machine produce every type of net?
A: No. Different nets may require different needles, gauges, guide bar configurations, yarn feeding systems, and working widths. The machine should be selected based on the target product.
Q: What is the difference between single and double needle bar machines?
A: Single needle bar machines mainly produce flat nets and mesh fabrics. Double needle bar machines can produce tubular bags, thicker mesh, double-layer structures, and spacer fabrics.
Q: Which machine is suitable for shade net production?
A: RS and HSRO machines are commonly used for different shade-net structures. DRCA may be selected for certain double-needle-bar agricultural nets and mesh-bag products. The final choice depends on yarn type, shading rate, fabric weight, and width.
Q: Which machine can produce fishing nets?
A: SRO, SROP, SRC, and selected RS-1 configurations can produce knotless fishing or aquaculture nets. The appropriate model depends on yarn, mesh size, and finished-net specifications.
Q: Which machine is suitable for fruit and vegetable mesh bags?
A: The DRCA double needle bar Raschel machine is designed for vegetable bags, fruit packaging mesh, and related agricultural packaging products.
