How 2-Bar Designs Optimize a Fully Automated Tricot Machine?

December 15, 2025

In warp knitting, a 2-bar tricot setup is more than a mechanical layout. It is a practical strategy for controlling tension, handling yarn, and keeping quality consistent at industrial speeds. The interaction between the guide bars, needle bar, slider bar, and sinker bar influences waste levels, machine stops, and how quickly you can react to new orders and fabric developments. In this article, we’d like to share how our 2-bar approach helps optimize a Fully Automated Tricot Machine, and what that means for your operators, your maintenance team, and ultimately your bottom line.

Why 2-Bar Designs Change Daily Life on the Knitting Floor

Talk to any production manager and the story is similar: more complex fabrics, tighter delivery windows, and fewer experienced technicians. When the knitting line is not optimized, the same problems keep coming back, shift after shift.

Typical issues often include:

✅Yarn breaks and unstable tension that cause frequent stops

✅Visible differences in fabric across the full working width

✅Strong dependence on a few “expert” operators for setup

✅Slow pattern changes that delay new orders or sample runs

A well-designed 2-bar system tackles these issues at their source. In our machines, the two guide bars are made from carbon-fiber-reinforced material. That makes them light yet rigid, so they generate less vibration and less wear at high speed. The result is a calmer knitting process and more stable loop formation.

The individual needle bar, equipped with compound needles, works together with the slider and sinker bars to keep each loop under control. Instead of fighting with random tension swings, your Fully Automated Tricot Machine can run long batches more smoothly, even at working widths of over 8 meters.

For a mill, this translates into fewer quality disputes, less waste, and more predictable capacity planning. You spend more time shipping fabric and less time chasing faults.

Inside Grand Star Technology‘s 2-Bar Fully Automated Tricot Machine

When we designed our 2-bar tricot solution, we started from a simple question: what does a modern knitting room actually need to stay competitive? The answer is not “maximum speed at any cost.” It is a balanced combination of width, flexibility, and easy control.

Our Fully Automated Tricot Machine is available in wide formats, around 292″, 320″, and 340″, giving you enough width to serve applications such as home textiles, technical fabrics, or automotive materials. Gauges like E28 and E32 support a broad range of constructions, from finer fabrics to more robust styles, without forcing a complete machine change.

At the heart of the knitting system, you will find:

•  An individual needle bar with compound needles for precise loop formation
•  Plate slider units that support stable, repeatable movement
•  Compound sinker units that help maintain alignment and tension

Together with the two carbon-fiber guide bars, these components create a solid mechanical base that lets automation really shine.

From a control perspective, our GrandStar® Command System keeps things straightforward. Operators can fine-tune settings, access pattern data, and oversee the Fully Automated Tricot Machine from a clear, logical screen layout. With fewer steps and no hidden menus, training becomes easier and shift-to-shift consistency improves.

•  Quality and uptime are further supported by integrated monitoring:
•  Laserstop helps detect faults in real time, reducing the length of defective fabric.

An integrated camera gives quality teams a direct view of the fabric, making it easier to trace issues and adjust settings.

Tension control and fabric handling are equally important. Each warp beam position is equipped with an electronically controlled yarn let-off drive, designed to keep tension consistent from full beam to nearly empty. Downstream, an electronically regulated take-up with geared motor and multiple rollers moves the fabric smoothly, while a separate floor-standing batching device collects rolls in an orderly way.

For patterning, our N-Drive system uses two pattern discs and an integrated tempi change gear, so you can switch or fine-tune patterns without excessive mechanical work. This allows you to answer customer requests faster, whether you are making standard items or developing new styles.

Behind the scenes, a speed-regulated drive system with an electrical load of around 25 kVA, operating on a 380V three-phase supply, keeps motion stable under changing conditions. An oil/water heat exchanger supports temperature control and extends the life of the machine, especially when operating around 25°C and moderate humidity levels.

Taken together, these choices create a 2-bar platform that keeps the Fully Automated Tricot Machine running reliably, not just in ideal test conditions, but in the real environment of your knitting floor.

Service, Training, and Long-Term Value Beyond the Machine

Even the best 2-bar design cannot deliver full value if your team is unsure how to use it. That is why we see every installation as the start of a partnership, not the end of a sale.

Grand Star Technology supports customers with localized service and training in major textile hubs such as Turkey and India, as well as strong coverage in countries including Vietnam, Indonesia, and the USA. Where local teams are not yet in place, we first provide real-time online support. When remote support is not enough, our engineers travel to your plant and work side by side with your staff to resolve issues efficiently.

With this approach, you can:

✅Strengthen operator know-how in a real production environment

✅Cut unplanned stoppages during installation and style changes

✅Protect the long-term performance of your Fully Automated Tricot Machine through best-practice maintenance

At the same time, we know your market will keep changing. New fabrics, new regulations, and new customer expectations will appear. A flexible 2-bar platform makes it easier to adjust without replacing the entire knitting line. With a combination of wide working widths, suitable gauges, and flexible pattern drives, you can evolve your product range gradually and protect your investment.

For Grand Star Technology, the 2-bar tricot system is designed as a long-term enabler of performance. It offers a reliable platform for expansion, letting you concentrate on market growth and customer satisfaction rather than constant troubleshooting on the shop floor.

Should you be considering an upgrade of your warp knitting capacity, dealing with fabric inconsistency, or relying too heavily on a few experienced operators, we encourage you to speak with our team. We will work with you to evaluate how a 2-bar Fully Automated Tricot Machine can streamline production and define a step-by-step roadmap toward a more automated and efficient knitting line.