**Product Specifications:** - **Model No.:** CHF - **Machine Type:** Single Needle Sewing Machine for Quilting - **Sewing Method:** Quilting - **Sewing Head Type:** Lock Stitch - **Quilting Width:** 2.6–3.4 M - **Stitch Length:** (2–7) mm - **Quilting Thickness:** Up to 70mm - **Computerized:** Yes - **Precision:** High Precision - **Trademark:** SQUARE - **Transport Package:** Plastic Film - **Specification:** Set - **Origin:** Nanjing, China - **HS Code:** 8452219000 --- **High Speed Computerized Single Needle Sewing Machine for Quilting** This advanced single needle quilting machine is designed for high-speed and precision performance. It is ideal for industrial use in the production of quilts, mattresses, and other textile products. The machine features a computerized system that ensures smooth operation, easy maintenance, and efficient production. **Key Features:** 1. **High Efficiency & Low Noise:** Equipped with an imported linear guide, this machine operates at a maximum speed of 300 rpm, significantly improving work efficiency by 20–25%. The sewing head moves smoothly with minimal vibration and noise. 2. **Easy Maintenance:** Worn parts of the sewing head do not require oil, making it easier to maintain. The machine includes automatic hook position adjustment, which is stored in the computer memory. 3. **Advanced Control System:** The main axis uses an electronic system, while the X and Y directions are controlled by a stepper drive. An industrial control board allows for USB flash disk connectivity, enabling users to reset or copy designs directly from the software. 4. **Single Needle & Lock Stitch:** The machine uses a single needle, lock stitch, and a large rotary hook for stable and smooth quilting. 5. **Upper Thread Detection:** The machine automatically stops when the upper thread is open. This feature can be toggled on or off using the F3 key on the keyboard. 6. **Design Flexibility:** It comes with over 200 preloaded designs, and users can also import custom patterns via USB. The pattern management system allows users to view, copy, delete, and rotate designs in various formats such as DST, DAT, and EMB. --- **Technical Data:** | Model | Working Width (mm) | Machine Dimensions (m) | Max Quilt Size (m) | Max Design Size (m) | Speed (rpm) | Weight (t) | Power (kW) | |-------------|--------------------|------------------------|--------------------|---------------------|-------------|------------|------------| | CHF-26GS | 2.6 | 3.55x5x1.67 | 2.6x2.8 | 2.4x2.6 | 3000 | 1.47 | 1.5 | | CHF-28GS | 2.8 | 3.8x5.4x1.67 | 2.8x3.2 | 2.6x3.0 | 3000 | 1.5 | 1.5 | | CHF-30GS | 3.0 | 4.05x5.4x1.67 | 3.0x3.2 | 2.8x3.2 | 3000 | 1.55 | 1.5 | | CHF-34GS | 3.4 | 4.45x5.8x1.67 | 3.4x3.6 | 3.2x3.6 | 3000 | 1.7 | 1.5 | **Notes:** - Main Motor: Stepper Motor - Voltage: 1P, 220V, 50Hz - Stitch Length: 2–7 mm - Rotary Hook: Large Rotary Hook --- **Our Services:** 1. **After-Sale Service:** We offer installation, commissioning, and training services at your factory. Please note that the buyer is responsible for visa application, air tickets, accommodation, and interpreting fees if required. 2. **Warranty:** A one-year warranty is provided starting from the date of shipment. For detailed warranty information, please refer to the operation manual. Wearing parts, consumables, and damage caused by incorrect operation are not covered under warranty. --- **FAQ:** - **Voltage:** Please confirm your country's voltage before purchasing. China operates on 220V (1-phase, 50Hz) or 380V (3-phase, 60Hz). If different, please inform us in advance. --- **About Our Company:** Nanjing Square Mattress Machinery Co., Ltd. (also known as Nanjing Sifang Mattress Machinery Factory) was established in 1990. As a specialized manufacturer of complete mattress and sofa spring equipment, we offer over 60 models across 10 series. Our factory spans 35,000 square meters with a 14,000-square-meter workshop. We strictly follow the ISO9001:2000 quality system and have built a strong global presence, with our products sold in Europe, South America, North America, Australia, the Middle East, Asia, Africa, and more. We welcome any inquiries or visits and look forward to building long-term partnerships with you.

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