The DT 3020TDB is an advanced automatic pockets attaching sewing machine with integrated pocket cover sewing capability. It is designed for side pockets and rear pockets on trousers, casual pants, and work pants, with a maximum pocket size of 220mm × 250mm. While the sewing head automatically folds, presses, and sews the main pocket, the pocket flap is simultaneously sewn using an additional attachment. The equipment supports automatic feeding and attaching of both one-piece flapsandseparate flaps.

This machine is ideal for garment manufacturers producing trousers, casual pants, workwear, and uniforms that require high-efficiency pocket attaching with consistent quality and minimal manual handling.

Applications

The DT 3020TDB is suitable for:

• Side pockets on trousers, casual pants, and work pants

• Rear pockets on jeans, casual pants, and workwear

• Pocket cover / flap sewing – one-piece flaps and separate flaps

• Work pants and uniforms – durable pocket construction

• Casual trousers – high-volume pocket attaching

• Denim and twill garments – medium to heavy-weight fabrics

• Canvas and workwear materials – strong, neat pocket seams

Maximum pocket size: 220mm × 250mm.

The machine can complete the sewing of the bag opening and the stitching of the separate bag cover on the same machine, eliminating the need for multiple stations.

Key Features

1. Customized Templates for Fast Pocket Folding

Customized templates are designed based on the customer's pocket types and sizes. Installation and adjustment are simple and convenient, enabling rapid pocket folding without preheating or ironing.

• No pre-ironing required

• Quick template changeover

• Consistent pocket shape and size

• Suitable for different pocket styles

2. Optional High-Quality Sewing Heads

The machine can be optionally equipped with:

• Juki 9000C head

• Brother 7300A head

• 311 pattern sewing machine head

These heads operate with minimal noise and vibration while ensuring high efficiency. The choice of head allows factories to match the machine to their specific production requirements and budget.

3. SMC Pneumatic Feeding and Pressing Frame

The feeding and pressing frame section is fully equipped with pneumatic components from the Japanese brand SMC. This ensures:

• Smooth and stable material pressing

• Reliable feeding

• Long-lasting durability

• Consistent performance over extended production runs

4. Automatic Material Collection with Bionic Cross-Swing Arm

The automatic material collection system employs the latest bionics-inspired cross-swing arm mechanism. It is characterized by:

• Simple structure

• Precise and efficient movement

• Significantly reduced operator handling time

• Smooth, safe, and efficient collection process

The compact built-in design minimizes space usage and keeps the work area organized.

5. Smarteer Control Program

The system is equipped with the latest Smarteer Control program, featuring:

• Intuitive and user-friendly interface

• Straightforward parameter adjustments

• Multiple open ports for expanded functionality

• Simplified operation with stable and reliable command execution

• Touch screen with storage for multiple pattern sets

• No reprogramming required when changing models

6. Laser Alignment and Automatic Folding

The garment piece and pocket piece are aligned using laser technology, and the machine completes the edge folding in one step. This means:

• No pre-ironing required

• No skilled operators required

• Accurate and repeatable positioning

• Reduced material waste

7. Patented Needle-Hook Separation Head

The unique needle-hook separation head design features independent motors driving the needle and hook separately, with no mechanical linkage between them. This structure offers:

• Larger sewing space

• Easier fabric transfer and material collection

• Sewing speeds up to 3500 RPM

• Reduced vibration and improved stability

8. Quick Mold Replacement

Template replacement takes only 5 minutes, significantly reducing downtime when switching between different pocket styles or sizes.

9. Intelligent Control and Monitoring

The machine is equipped with:

• Intelligent thread break detection to reduce waste rates

• Automatic hook lubrication to prevent hook jams

• Full visualization of information

• Automatic production reports

• Alarm displays

• Fault diagnostics

These functions help operators monitor production in real time, quickly identify issues, and maintain consistent quality.

Common Questions

1. Can this machine perform both"pockets attaching"and"pockets cover sewing"simultaneously?

Yes. This model can complete the sewing of the bag opening and the stitching of the separate bag cover on the same machine. While the main pocket is automatically folded, pressed, and sewn, the flap is simultaneously sewn using an additional attachment. This integrated process saves time and ensures consistent alignment between the pocket and its cover.

2. Is reprogramming required when changing the model?

No. There is no need for reprogramming. The machine is usually equipped with a touch screen and can store multiple sets of patterns. Operators can simply select the required pattern from memory, making style changes fast and convenient.

3. How do laser alignment and the automatic folding device work?

The garment piece and pocket piece are aligned using laser technology. The machine then completes the edge folding in one step—no pre-ironing or skilled operators required. This ensures accurate positioning, consistent fold width, and a clean finished edge on every pocket.

4. How long does mold replacement take?

Template replacement takes only 5 minutes. This quick-change design minimizes downtime and allows factories to switch between different pocket sizes and styles efficiently.

5. What patents do you have?

The unique needle-hook separation head design features independent motors driving the needle and hook separately, with no mechanical linkage between them. This structure offers a larger sewing space, facilitates fabric transfer and material collection, and achieves sewing speeds of up to 3500 RPM.

6. Does the machine have additional functions?

Yes. It automatically collects materials after sewing, featuring a compact built-in design that minimizes space usage. The collection process is smooth, safe, and efficient. The bionic cross-swing arm mechanism further reduces operator handling time.

7. What kind of control system does it have?

The machine is equipped with a powerful control system featuring:

• Intelligent thread break detection to reduce waste rates

• Automatic hook lubrication to prevent hook jams

• Full visualization of information

• Automatic production reports

• Alarm displays

• Fault diagnostics

This system supports smart factory management and helps reduce downtime while improving overall efficiency and quality.

DT 3020TDB Specifications at a Glance

• automatic pockets attaching sewing machine

• pocket cover sewing machine

• automatic pocket attaching with flap sewing

• DT 3020TDB

• side pocket sewing machine

• rear pocket attaching machine

• trousers pocket sewing machine

• work pants pocket machine

• automatic pocket folding and sewing machine

• laser alignment pocket attaching machine