GE2816 Double Needle-bar Warp Knitting Machine FAQ | LongLongSheng Official Guide 2026

The GE2816 double needle-bar warp knitting machine is a industrial net-making solution developed and manufactured by LongLongSheng, a professional supplier of warp knitting equipment. Built with oiled eccentric gearing and full electronic control systems, this machine delivers stable running performance and precise fabric control for high-quality knotless fishing nets, sports nets, and industrial safety nets.

This official FAQ guide from LongLongSheng covers every stage of your procurement and operation journey — from model selection and technical specifications to production application, on-site installation, and after-sales service — to help you fully evaluate the GE2816 and select the optimal configuration for your manufacturing needs.

1. GE2816 Basics & Model Selection FAQs

1.1 What is the LongLongSheng GE2816 double needle-bar warp knitting machine mainly used for?

The LongLongSheng GE2816 double needle-bar warp knitting machine is primarily used to produce double-needle-bar knotless fishing nets, sports field barrier nets, and industrial safety protection nets. It is also suitable for aquaculture breeding nets, construction safety barriers, and playground protection nets.

Thanks to its double needle-bar structural design, it produces net fabrics with higher joint strength, smoother mesh surface, and better wear resistance than ordinary single needle-bar machines, making it ideal for load-bearing and impact-resistant net applications that require high reliability.

1.2 What working widths and gauges does the LongLongSheng GE2816 come in?

The LongLongSheng GE2816 warp knitting machine is available in two standard working widths and three gauge options to match different production scales and product requirements.

• Standard nominal working widths: 84" (2134mm) and 135" (3429mm)

• Available machine gauges: E6, E9, E12

Lower gauges (E6) are optimized for thicker yarns and larger mesh sizes for heavy-duty fishing nets, while higher gauges (E9, E12) produce finer mesh for high-precision sports nets and safety nets.

1.3 What is the difference between double and single needle-bar warp knitting machines?

The core structural difference is that double needle-bar machines form interlocking knots on both sides of the net fabric, while single needle-bar machines only form knots on one side.

For net production, double needle-bar machines like the LongLongSheng GE2816 deliver more uniform mesh opening, higher tensile strength at each node, and better abrasion resistance over long-term use. They are the preferred choice for safety-critical and heavy-duty applications, whereas single needle-bar machines are a more cost-effective option for lightweight, low-stress net products.Learn more about our full range of warp knitting machines on our product overview page.

1.4 How many guide bars does the LongLongSheng GE2816 support?

The LongLongSheng GE2816 double needle-bar warp knitting machine supports 6 to 8 guide bars. The standard 6-bar configuration covers most conventional knotless net patterns for fishing and general safety applications, while the 8-bar configuration enables more complex mesh structures and custom decorative net patterns for sports facilities and architectural protection mesh.

2. Technical Configuration & Performance FAQs

2.1 What drive system does the LongLongSheng GE2816 use? What are the benefits?

LongLongSheng adopts an oiled eccentric connecting rod drive mechanism (oiled eccentric gearing) for the GE2816. Unlike open drive systems commonly used in entry-level machines, this fully enclosed oil-immersed structure provides continuous and sufficient lubrication for all internal moving parts.

This design reduces component wear by approximately 30%, lowers operating noise, and ensures more stable running even at continuous high speeds. For net manufacturers, this translates to longer equipment service life, fewer unplanned downtime events, and lower long-term maintenance costs.

2.2 Does the LongLongSheng GE2816 have electronic let-off and take-up systems?

Yes, the LongLongSheng GE2816 is equipped as standard withElectronic Let-off Control (EBC)andElectronic Take-up (ETU)systems. These electronic control systems precisely regulate yarn tension and fabric take-up speed in real time, ensuring consistent mesh size and uniform fabric weight across the full working width of the net.

Compared with traditional mechanical let-off systems, they significantly reduce defective rates, allow quick parameter adjustment for different yarn materials and net specifications, and eliminate the need for frequent mechanical part replacement and adjustment.

2.3 What is the knitting speed of the LongLongSheng GE2816 warp knitting machine?

The standard knitting speed range of the LongLongSheng GE2816 double needle-bar warp knitting machine is 50–350 rpm. The actual optimal operating speed depends on yarn material, mesh size, and production quality requirements:

• 50–150 rpm is recommended for thick HDPE heavy-duty fishing nets

• 200–350 rpm is suitable for fine polyester sports nets and safety nets

For production reference, the GE2816-135" model can produce approximately 80–120 linear meters of standard knotless fishing net per 8-hour shift under normal operating conditions.

2.4 What needle type is used in the LongLongSheng GE2816?

The LongLongSheng GE2816 uses high-quality latch needles as standard. Latch needles are widely compatible with HDPE, PP, nylon (polyamide), polyester, and other common synthetic filament and multifilament yarns used in net manufacturing.

They form stable loops with low yarn breakage and needle breakage rates, and are low-cost and easy to replace for routine maintenance, making them the most practical and cost-effective choice for industrial net production.

3. Production & Application FAQs

3.1 What yarn materials can the LongLongSheng GE2816 process?

The LongLongSheng GE2816 double needle-bar warp knitting machine processes all common synthetic yarns used in industrial net production, including HDPE monofilament, PP monofilament, nylon (polyamide) filament, polyester filament, and polyethylene multifilament.

It can also handle UV-stabilized yarns and weather-resistant blended yarns for outdoor net applications. Different gauge configurations are optimized for different yarn diameters: E6 for 0.2–0.5mm monofilament, E9/E12 for finer filament yarns.

3.2 What mesh sizes can the LongLongSheng GE2816 produce?

The GE2816 can produce mesh sizes ranging from approximately 10mm to 100mm, depending on machine gauge, guide bar configuration, and yarn type. Common standard production sizes include:

• 20–50mm for fishing trap nets and aquaculture nets

• 40–80mm for sports court barrier nets

• 30–60mm for construction safety nets and highway protection nets

Mesh size can be adjusted electronically via the pattern control system without changing mechanical parts, enabling flexible switching between different product specifications.

3.3 How to troubleshoot yarn breakage on the LongLongSheng GE2816 warp knitting machine?

If you encounter frequent yarn breakage on the LongLongSheng GE2816, follow these four troubleshooting steps in order:

Ⅰ.Check yarn quality: Inspect for knots, uneven diameter, or degraded material; replace with qualified production-grade yarn if needed.

Ⅱ.Verify let-off tension: Adjust EBC tension parameters to match yarn thickness; excessive tension is the most common cause of breakage.

Ⅲ.Inspect needle condition: Check for bent, blunt, or misaligned latch needles; replace or re-calibrate needles as required.

Ⅳ.Check yarn path: Ensure all yarn guides and eyelets are smooth and free of burrs that could abrade the yarn during running.

3.4 Can the LongLongSheng GE2816 produce both fishing nets and sports safety nets?

Yes, the LongLongSheng GE2816 is a versatile double needle-bar machine designed for multi-scenario net production, suitable for both fishing nets and sports safety nets.

By adjusting machine gauge, yarn material, mesh size, and pattern parameters, it can switch between heavy-duty knotless fishing nets, fine-mesh sports barrier nets, playground protection nets, and highway safety nets. This versatility allows manufacturers to serve multiple end markets with a single machine platform.

4. Installation & Maintenance FAQs

4.1 What are the dimensions and weight of LongLongSheng GE2816 models?

The overall dimensions and machine weight vary by working width. Below are the standard factory specifications:

A minimum of 1 meter of clearance around the machine is recommended for safe operation and maintenance access. The standard power supply requirement is 3-phase 380V/50Hz; local voltage customization is available for different export markets.

4.2 Does LongLongSheng provide overseas installation and commissioning service for GE2816?

Yes, LongLongSheng provides full overseas installation and commissioning support for the GE2816 warp knitting machine. Every machine is fully assembled and undergoes 72 hours of continuous test running at our factory before delivery, and comes with a detailed operation manual and video operation guides.

We can also dispatch experienced commissioning engineers to your factory for on-site installation, machine calibration, and operator training. Travel and accommodation costs are charged separately according to the destination country and project duration.

4.3 What is the warranty policy for the LongLongSheng GE2816 warp knitting machine?

LongLongSheng offers a 12-month warranty for the complete GE2816 machine, starting from the date of on-site commissioning. The warranty covers manufacturing defects in core components including the gearbox, needle bed, and electronic control system.

Wear parts such as needles, yarn guides, and sealing elements are not covered under warranty but are available for long-term supply at factory prices. LongLongSheng also provides lifetime technical support and spare parts supply for all sold machines.

4.4 How often does the LongLongSheng GE2816 need routine maintenance?

Thanks to its enclosed oiled eccentric drive system, the LongLongSheng GE2816 requires less frequent maintenance than ordinary open-drive net machines. The recommended maintenance schedule is:

•Daily: Visual inspection of yarn path, check for abnormal noise and vibration during operation

•Weekly: Lubricate exposed moving parts, clean yarn guides and needle bed areas

•Monthly: Check gearbox oil level, calibrate needle bar alignment, verify electrical connections

•Yearly: Replace gearbox lubricating oil, conduct full inspection of all drive components

5. Order & Customization FAQs

5.1 Can the LongLongSheng GE2816 be customized for specific production needs?

Yes, LongLongSheng supports full customization of the GE2816 to match your specific production requirements. Available custom options include: working widths beyond standard sizes, additional guide bars, special gauge configurations, local voltage adaptation, automatic winder units, and dedicated pattern programming for special net types.

We can also develop custom machine configurations for niche applications such as architectural decorative mesh and agricultural shade nets.

5.2 What is the typical lead time for a LongLongSheng GE2816 machine?

The typical lead time for a standard LongLongSheng GE2816 double needle-bar warp knitting machine is 30–45 working days from receipt of deposit. Customized configurations may require 45–60 working days depending on the scope of modification.

All machines undergo strict factory testing and 72 hours of continuous trial running before shipment to ensure stable performance and reliable operation upon arrival.

5.3 Can we get net samples knitted by the LongLongSheng GE2816 before ordering?

Yes, we can provide net samples produced on the LongLongSheng GE2816 before you place an official order. You can request standard samples of common fishing net or sports net specifications, or we can knit custom samples using your provided yarn material and target mesh size.

Standard sample production typically takes 3–7 working days; courier fees may apply for custom sample requests and international delivery.

6. Get a Custom Quote from LongLongSheng

If you have further questions about the GE2816 double needle-bar warp knitting machine, or want to discuss a custom configuration tailored to your factory production,contact the LongLongSheng technical sales team for a free project evaluation and detailed quotation.

You can also explore more technical details and product specifications on the official “GE2816 product page” on the LongLongSheng website.