Distinction Between Single-Motor and Dual-Motor Circular Welding Heads

The differentiation between single-motor and dual-motor circular welding heads is independent of the product being manufactured. Instead, it depends on the suitability of the customer's product.

Types of Lace Machines
Lace machines are available in AH60, AH100, and AH200 models, with both manual and pneumatic options.

Manual Type: The adjustment of the mold's vertical position and the welding head's contact is controlled by rotating the top handwheel.
Pneumatic Type: The pressure adjustment of the mold is controlled by a cylinder that regulates the up-and-down movement and applied pressure. This type is more suitable for frequent mold changes or applications where the mold and the rear pressure wheel require intermittent pressure adjustments, such as in protective clothing, carbon bags, and woven bags. It is also useful for products that require intermittent stitching with blank spaces in between.

Single-Motor vs. Dual-Motor Lace Machines
Lace machines are also available in single-motor and dual-motor configurations in models AH60 and AH100 Semi-Automatic Ultrasonic Lace Machine.
Single-Motor Configuration: A single motor drives the patterned wheel, while the welding head remains stationary. As a result, the contact area between the mold and the welding head remains fixed in one position, leading to localized wear. Over time, the worn area requires manual adjustment of the welding head position. Since the welding head has a diameter of 70 mm, all positions on it can be adjusted. The contact surface wear is limited to a single point, so when repositioning the welding head, a simple manual leveling adjustment suffices without requiring high precision.

Dual-Motor Configuration: In this setup, the upper motor drives the mold rotation, while the lower motor simultaneously drives the welding head rotation. This results in even circular wear on the welding head, eliminating the need for manual rotation. However, after prolonged use, when the wear reaches a certain level, the welding head must be removed and either replaced or surface-polished. Since dual-motor welding heads require a high degree of surface precision, once they are misaligned, manual adjustment becomes difficult. Specialized instruments are required for precise calibration, as manual adjustment alone is insufficient.

Manual single motor lace machine

Pneumatic single motor lace machine

Pneumatic double motor lace cutting machine

The difference between single motor and dual motor

The above picture shows a single motor: a single motor is a motor that drives the flower wheel to rotate, and the welding head is fixed and does not rotate. In this way, the contact surface between the mold and the welding head is fixed in one position and wears out over time. The worn position needs to be manually rotated. Our welding head with a diameter of 70 mm can be rotated in all positions.

The picture above shows a dual motor: in addition to the upper motor driving the mold to rotate, the lower motor also drives the welding head below to rotate. That is, the wear of the welding head is a circle of wear and tear, and there is no need to manually rotate the welding head, so it is said to be a dual motor.

Manual and pneumatic distinction

This is manual: Manual is to adjust the contact between the upper and lower molds and the welding head by rotating the upper hand wheel.

This is pneumatic: pneumatic means that the pressure of the mold is adjusted by the cylinder to control the up and down and pressure. This is more suitable for frequent mold changes.
Warm reminder: No matter which machine you choose, the product effect is the same