I. Equipment Overview
The Hand-Cranked EI Laminator is a manually operated laminating device primarily used to neatly and quickly insert EI-type silicon steel sheets into coil bobbins. It is suitable for the mass production of electronic components such as transformers and inductors.
Compared to completely manual stacking and insertion of sheets one by one, the Hand-Cranked EI Laminator achieves positioning, guidance, and alignment through mechanical structures. This not only ensures product quality but also significantly reduces workers' labor intensity and improves insertion efficiency.
II. Applicable Scope
Applicable Products:
- Power frequency transformers, small power transformers, inductor coils, etc.
Applicable Cores:
- EI series cores, such as EI14, EI16, EI19, EI22, EI25, EI30, EI35, etc. (Different specification molds can be configured according to requirements)
III. Main Features
Compact structure and simple operation
- Hand-cranked design, no need for power or air source, with small environmental restrictions
- Small volume and low space occupation, suitable for workshop, laboratory, and repair bench use
- No complex training required; new employees can quickly get started
Neat insertion and reliable precision
- Equipped with positioning fixtures and guiding structures to ensure neat stacking of EI sheets and uniform air gaps
- Effectively reduces issues such as core looseness and eccentricity, improving transformer electrical performance and stability
- Compared to pure manual insertion, product consistency is significantly improved, and defect rate is noticeably reduced
Effort-saving hand cranking and efficiency improvement
- Adopting a reasonable mechanical transmission structure, the cranking force is light, and the operating feel is comfortable
- A single crank of the handle can complete the neat stacking of multiple silicon steel sheets, with efficiency far higher than pure manual operation
- Suitable for medium and small customers who need a certain level of efficiency but do not require fully automatic equipment
Multi-specification compatibility and easy switching
- By replacing the insertion mold/fixture, it can adapt to different sizes of EI cores and bobbins
- Mold replacement is simple and quick, meeting the needs of multi-variety and small-batch production
Durable and easy to maintain
- The body is made of high-quality steel and precision machined parts, with a sturdy structure and long service life
- No complex electrical control system, low failure rate, and easy maintenance
- Easy to clean and maintain, with good long-term stability
IV. Typical Technical Parameters (Example, adjustable according to actual machine model)
| Applicable Core Specifications |
EI14–EI35 (Molds can be customized according to customer requirements) |
| Insertion Method |
Hand-cranked drive, mechanically guided stacking |
| Number of Stacked Layers |
Can be freely controlled according to product structure |
| Dimensions |
Approximately L×W×H (mm) (For example: 350×250×300, fill in according to actual data) |
| Weight |
Approximately 10–20 kg (depending on the specific machine model) |
| Material |
Frame uses steel plate with powder coating; key parts use high-quality steel |
| Features |
No power required, no air source required, easy to move |
(The above parameters are general examples. Specific parameters shall prevail for actual machine models.)
V. Equipment Advantages and Benefits
Low investment cost
- The equipment price is much lower than fully automatic EI laminators, suitable for small and medium-sized enterprises with limited budgets or newly started processing plants
- No additional investment is needed for配套 air compressors, power supply modifications, etc.
High flexibility
- Suitable for multi-variety and small-batch production, and model switching is very convenient
- Strong adaptability to order changes, especially suitable for R&D sampling and repair supporting production
Improve quality and reduce rework
- Neat insertion and accurate positioning reduce problems caused by arbitrary manual insertion, such as core noise and excessive loss
- Helps improve customer recognition and product pass rate
Save labor and reduce labor intensity
- Compared to pure manual insertion, it significantly reduces repetitive and tedious manual labor
- One worker can easily operate multiple machines, increasing per capita output
