A computerized lockstitch machine is a game-changer for both industrial garment production and high-precision home sewing. With automation, digital control, and consistent stitch quality, it offers speed, accuracy, and ease of operation far beyond traditional mechanical models.
Sanhexin, a professional sewing machine research, production, and manufacturing enterprise, has been at the forefront of designing reliable and innovative computerized lockstitch solutions for various industries. Whether you’re a beginner learning to operate your first machine or a factory manager training staff, this guide will walk you step-by-step through setup and operation—ensuring smooth performance and long-term durability.
1. Understanding Your Computerized Lockstitch Machine
Before touching any controls, familiarize yourself with the key components:
Head Unit – The main body containing the needle, presser foot, and feed mechanism.
Control Panel – A digital interface for adjusting stitch patterns, speed, and settings.
Motor – Often a direct-drive servo motor for energy efficiency and reduced vibration.
Bobbin and Bobbin Case – Holds the lower thread.
Thread Stand – Supports thread spools and guides thread to the tension discs.
Foot Pedal – Controls stitching speed.
Sanhexin’s computerized models often feature a user-friendly LCD touch screen, built-in stitch patterns, automatic thread trimming, and needle positioning functions—making them versatile for different fabrics and sewing techniques.
2. Step-by-Step Setup Process
Step 1 – Unpacking and Placement
Place the machine on a sturdy sewing table with adequate lighting.
Ensure the power cable is safely connected to a grounded outlet.
Step 2 – Threading the Upper Thread
Place the thread spool on the stand.
Guide the thread through the upper tension discs, take-up lever, and needle bar thread guide.
Thread the needle from front to back (or as per Sanhexin’s manual).
Step 3 – Winding and Inserting the Bobbin
Wind the bobbin using the winding spindle until evenly filled.
Place the bobbin in the bobbin case, pulling the thread through the tension spring.
Insert into the shuttle race and close the cover.
Step 4 – Setting the Control Panel
Turn on the power switch.
Select stitch type, length, and speed limit.
For beginners, start with moderate speed to maintain control.
Step 5 – Needle and Presser Foot Check
Ensure the correct needle size for your fabric type.
Use specialized presser feet for operations like zipper insertion or edge stitching.
3. Operating the Machine
Starting to Sew
Position fabric under the presser foot and lower it.
Hold the top and bottom threads lightly to avoid tangling.
Press the foot pedal gently and guide the fabric without pulling.
Utilizing Computerized Features
Automatic Thread Trimming – Cuts threads at the push of a button, saving time.
Programmable Stitch Patterns – Select from stored patterns for decorative or functional stitching.
Needle Up/Down Control – Ideal for pivoting corners and precise alignment.
Speed Limiting – Helps prevent mistakes when sewing delicate fabrics.
4. Maintenance and Care
To keep your Sanhexin computerized lockstitch machine in peak condition:
Clean lint from the bobbin area daily.
Oil moving parts as recommended in the manual (some models are semi- or fully-lubricated).
Check and replace needles regularly to avoid skipped stitches.
Keep the control panel and sensors free of dust.
5. Why Choose Sanhexin?
Sanhexin integrates R&D, manufacturing, and quality control under one roof, ensuring every computerized lockstitch machine meets high industrial standards. Advantages include:
Durability – Engineered with precision components for long life.
Advanced Technology – Intelligent controls for productivity and quality consistency.
Customization – Tailored solutions for apparel, leather goods, upholstery, and more.
Global Support – Professional technical guidance and after-sales service.
Final Thoughts
Mastering a computerized lockstitch machine doesn’t have to be intimidating. By following a systematic setup process, understanding the digital functions, and practicing regularly, you’ll achieve professional-grade stitching in no time. And with Sanhexin’s innovative machines, you’re not just sewing—you’re stepping into a world of precision, speed, and efficiency.
From Apparel to Upholstery: Common Uses of Computerized Lockstitch Machines
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Ningbo Sanhexin Automation Co., Ltd.
