Why do IG units have sealant leakage?

Sealant leakage is usually caused by incorrect sealant temperature or viscosity, poor spacer bending accuracy, glass size deviation, surface contamination, or unstable 2K sealing ratios.

How can I prevent sealant leakage in insulated glass units?

Maintain correct sealant temperature, ensure precise spacer bending, keep glass surfaces clean, use stable A/B sealant ratios, and consider using an automatic sealing robot for consistent quality.

Can equipment problems cause IG sealant leakage?

Yes. Butyl extruder temperature errors, 2K sealant mixing issues, worn nozzles, and inconsistent machine pressure can all lead to poor sealing performance and leakage.

Does manual sealing increase the risk of leakage?

Manual sealing often leads to uneven sealant lines and inconsistent corner filling. Using an automatic IG sealing robot significantly reduces leakage and improves product stability.

What is the best long-term solution for reducing IG sealant defects?

Investing in automated equipment—such as an IG sealing robot, automatic spacer bending machine, and calibrated 2K sealant pump—offers the most consistent and long-term solution to eliminate sealing problems.

Is LIJIANG Glass a factory or a trading company?

LIJIANG Glass is a professional manufacturer specializing in glass machinery and insulating glass production lines. We design, produce, and assemble equipment in our own factory to ensure strict quality control and efficient delivery.

What is the delivery time for your glass machinery?

Normally, the delivery time is 15–20 working days after receiving the deposit. For standard models, we usually have stock in the factory. If you have urgent requirements, we can arrange priority production.

What payment methods do you accept?

We accept common international payment methods including T/T (bank transfer), L/C, and other negotiable terms depending on the order volume and customer region.

How does LIJIANG Glass provide after-sales service?

We provide full technical support after delivery, including online troubleshooting, installation guidance, video assistance, and on-site service if necessary. Our engineers ensure smooth operation and long-term maintenance support for every customer.

Can LIJIANG Glass customize glass machinery?

Yes, we can customize glass processing equipment according to your factory layout, glass size, and production requirements. Our design team provides tailored solutions to optimize efficiency and cost performance.

Vertical IG Line vs Horizontal Line

2 min read

Introduction

In the insulating glass (IG) industry, choosing the right production line is crucial for efficiency and product quality. Two common configurations are vertical IG lines and horizontal IG lines. Each has its own advantages and drawbacks, depending on your production needs.1. Vertical IG Line

A vertical IG line positions glass panels upright during production. This setup is popular for:

Space-saving design: Ideal for factories with limited floor area.
Better sealing quality: Gravity assists in uniform sealant distribution.
Flexible production: Can handle various glass sizes, especially jumbo glass.

However, vertical lines may have slightly higher equipment costs and require careful handling to prevent panel damage.2. Horizontal IG Line

In a horizontal IG line, glass panels lie flat during production. Its main advantages include:

High throughput: Faster production for standard glass sizes.
Easier automation integration: Loading and unloading can be simpler.
Lower initial cost: Horizontal systems are generally less expensive than vertical setups.

The main disadvantage is that horizontal lines require more floor space and may have slightly less precise sealant application for larger glass panels.3. Which One is Better?

The choice depends on your factory’s priorities:

Limited space & diverse glass sizes: Vertical IG line is preferred.
High-volume standard production & cost-sensitive: Horizontal IG line is more suitable.

4. LJ Glass Machinery Solutions

At LJ Glass Machinery, we provide both vertical and horizontal IG lines, customized to your production needs. Our machines ensure:

High sealing quality
Efficient production speed
Reliable automation integration

Whether you are producing standard or jumbo glass, we have the right solution for you.Conclusion

Choosing between a vertical or horizontal IG line depends on your production requirements, space, and budget. For professional advice and customized IG line solutions, contact LJ Glass Machinery today.

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Vertical IG Line vs Horizontal Line — Which is Better?