Different Models of Solvent-Free Lamination Testing Machines and How to Choose

In recent years, an increasing number of leading adhesive, ink and packaging enterprises have purchased Sinoze solvent-free lamination testing machines. Their reasons for ordering differ, and the models they use are not the same either.

Overall, the purposes for which different manufacturers order testing machines fall roughly into the following categories:

Basic research on adhesives;

Development of functional adhesives;

Small-batch trial production and promotion of adhesives;

Systematic research on adhesives and lamination processes;

Trial production of laminated products, etc.

For users with different applications, the solutions provided by Sinoze mainly include two major categories of choices:

The first category is the SLE series testing machine, which is dedicated equipment for adhesive and process research;

The second category is standard production machines; to date, users have selected different models including the SLF1000/1300A, A350 and Smartlam600.

I. SLE Series Digital Testing Platform

The SLE series testing machine is in fact a testing platform. It is a dedicated testing series developed by Sinoze on the basis of years of manufacturing experience in solvent-free laminating machines, long-term interaction and integration with adhesive manufacturers and users, and continuous improvement.

The SLE series testing platform consists of two major components: the testing main machine and the portable adhesive mixer.

1. Main features of the SLE series testing main machine

Intended users: solvent-free adhesive or ink enterprises.

Scope of application: lamination of various films, metallized films, thin paper, aluminum foil, etc.

Tension control method: dancer roller, small-displacement sensor (servo motor control).

Coating unit control: servo motor.

1. Main technical parameters of the SLE series testing main machine

At present, the SLE300 solvent-free lamination testing machine and the SLE500D solvent-free lamination testing machine are the two most commonly used testing machines, suitable for high-speed (450 m/min) and ultra-high-speed (650 m/min) lamination tests respectively.

The appearance of the SLE300 solvent-free lamination testing machine is shown in Figure 1, and its main technical parameters are listed in Table 1.

Figure 1 SLE300 solvent-free lamination testing machine

Table 1 Technical parameters of the SLE300 solvent-free lamination testing machine

Main technical parameters

Maximum mechanical speed

450m/min

Maximum web width

300mm

Maximum unwinding diameter

400mm

Maximum rewinding diameter

500mm

3” or 6”

2500(L)x1530(W)x1920(H)mm

The appearance of the SLE500D solvent-free lamination testing machine is shown in Figure 2, and its main technical parameters are listed in Table 2.

Figure 2 SLE500D solvent-free lamination testing machine

Table 2 Technical parameters of the SLE500 solvent-free lamination testing machine

Main technical parameters

Maximum mechanical speed

650m/min

Maximum unwinding diameter

500mm

Maximum rewinding diameter

500mm

3” or 6”

4000(L)x2280(W)x2300(H)mm

Fast-curing dual-coating solvent-free lamination process mode

1. Portable Mixer

The SM2-5 portable adhesive mixer is a micro automatic adhesive mixer developed by Sinoze specifically for solvent-free lamination testing machines. It has the basic functions and performance of a standard automatic adhesive mixer, but is very small and light, easy to carry (for example, in the trunk of a car), and suitable for adhesive process tests and on-site trial-run promotion for users.

The SM2-5 portable adhesive mixer is shown in Figure 3, and its main technical parameters are listed in Table 3.

Figure 3 SM2-5 portable machine

Table 3 Main technical parameters of the SM2-5 portable adhesive mixer

Main technical parameters

Adhesive type

Various two-component adhesives for flexible packaging

Adhesive testing and small-batch lamination production

Mixing ratio range

100：30～100:100

2 X 5 L

Maximum various temperatures

Approx. 45KG

The SM2-5 portable adhesive mixer is the only one of its kind produced worldwide and has become an integral part of the digital testing platform.

The greatest advantage of the SLE series testing machine lies in its fully digital design: it can cover the highest speeds used in actual production, and offers powerful testing functions and convenient operation. However, its web width is generally small, making it difficult to simulate a complete actual production process.

II. Standard Production Models

Some testing machine users choose the SLF1000/1300A or A350 as their testing machine, equipped with a standard adhesive mixer, forming a complete production line, as shown in Figures 4 and 5.

Figure 4 SLF1000/1300 solvent-free laminating machine

Figure 5 A350 solvent-free laminating machine

The greatest advantage of using standard production models is that they can fully simulate the production process, enabling small-batch trial production and personnel training for users. Relatively speaking, however, their testing functions or convenience are somewhat insufficient, and the machine speed may not cover the highest speeds already achieved in actual production.