DT 165-02 Automatic trouser J shape sewing machine

The DT-165-02 is a fully automatic trouser front fly (J-shape) sewing machine designed specifically for zipper fly sewing on jeans, casual pants, and workwear trousers. It integrates automatic feeding, positioning, sewing, and stacking into one seamless process, completing the J-shaped fly stitching in one cycle without manual assistance.

This machine is an ideal solution for garment manufacturers looking to increase productivity, improve stitch consistency, and reduce reliance on skilled sewing operators.

The DT-165-02 is widely used in trousers and pants production lines for:

• Jeans – front fly zipper J-shape stitching

• Casual pants – curved fly seams with smooth curves

• Workwear trousers – heavy-duty fly construction

• Other trouser styles – any garment requiring symmetrical left and right J-shaped fly curves

It is especially suitable for factories producing medium to large volumes of denim and casual bottoms where fly sewing quality and speed are critical.

Key Features

1. Upgraded Design with Perfect Mechanical, Electrical, and Energy Combination

The DT-165-02 has been upgraded multiple times to achieve a perfect combination of mechanical structure, electrical control, and energy efficiency. The result is a machine with:

• Nice appearance and stable structure

• Long-term reliable performance

• Reduced energy consumption without sacrificing speed

• Optimized layout for easy operator access and maintenance

2. Front and Back Telescopic Folding Frame

The front and back telescopic folding frame enables:

• Faster running speed

• Higher production efficiency

• Smooth fabric handling during the folding and sewing process

• Better adaptation to different fly lengths and fabric types

3. Dovetail Groove Structure for Easy Folding Pusher Plate Replacement

The replacement of the folding pusher plate is easier and more convenient thanks to the dovetail groove structure. This design allows:

• Quick changeover between different fly styles

• Reduced downtime during style changes

• Tool-less or minimal-tool replacement

• Improved alignment accuracy after replacement

4. High-Quality Components: Airtac Cylinder and Valve, Innovative Servo Driver, THK Guide

The DT-165-02 is built with industry-leading components to ensure precision and durability:

• Airtac cylinder and valve – reliable pneumatic control for consistent pressing and folding

• Innovative servo driver – precise speed and position control for smooth J-curve sewing

• THK guide – high-precision linear motion for accurate and stable operation

These components contribute to the machine's long service life, low maintenance requirements, and high sewing accuracy.

Common Questions

1. What type of machine is the DT-165-02 Automatic Trouser J Shape Sewing Machine?

The DT-165-02 is a fully automatic trouser front fly (J-shape) sewing machine designed specifically for zipper fly sewing on jeans, casual pants, and workwear trousers.

It integrates automatic feeding, positioning, sewing, and stacking into one process, completing the J-shaped fly stitching in one cycle without manual assistance. This makes it a complete solution for front fly construction, eliminating separate marking, positioning, and trimming steps.

2. What are the core advantages of this machine?

The DT-165-02 offers several key advantages:

1. J-Shape Specialization: Optimized for fly curves, producing neat and smooth stitches every time.

2. One-Step Forming: Automatically completes feeding → positioning → sewing → stacking, with no manual assistance required.

3. Left-Right Symmetry: Ensures identical sewing trajectories for left and right fly pieces, maintaining product consistency.

4. High Efficiency: Sewing time per fly is only 8–12 seconds (depending on fly length).

5. Labor Saving: Replaces 3–4 skilled workers by automating marking, positioning, sewing, and trimming tasks.

6. Consistent Quality: Reduces quality issues such as curve deviation and puckering caused by operator fatigue or skill differences.

These advantages translate into lower production costs, higher output, and more consistent garment quality.

3. How is the precision of the J-shape curve ensured? Can left and right pieces be perfectly symmetrical?

The DT-165-02 uses servo motor drive + high-precision guides, and the sewing trajectory is completely controlled by digital program, not mechanical cams.

This provides:

• 100% consistent curves on every piece

• Left and right pieces can be set as mirror images, ensuring finished product symmetry

• Curve smoothness reaches 0.1mm level

Compared to manual sewing, human-induced variations are completely eliminated, resulting in uniform quality across the entire production batch.

DT-165-02 Specifications at a Glance

• automatic trouser J shape sewing machine

• J shape fly sewing machine

• automatic front fly sewing machine

• trouser fly J stitch machine

• jeans fly sewing machine

• automatic zipper fly sewing machine

• DT-165-02

• trouser J curve sewing machine