MACHINE NAME: AUTOMATIC POST BED SINGLE AND DOUBLE NEEDLE SEWING MACHINE 

MODEL NO: SB-1791D, SB-1792D

BRAND: SHIBANG   

FEATURES

• Front body shape, computer processing, precise specifications, with in an adjustable strap design, easy to damage.
• Front steady, operating vibration, Optional head operation box, more convenient operation.
• High direct-drive motor stability, no vibration, energy saving.
• Short tangential thread [1.0 cm], reducing manual trimming hours.
• Pour accurate needle entry to the hole, not damaged leather, increase the aesthetic.
• Still maintain some of the stitch, not the size of the needle and the needle head gear wheel send money when climbing.
• Sewing sponge, thin type leather, to secure smooth and uniform, do not wrinkle, unyielding shape.
• Add manual sew, allows the operator more convenient to use.
• Solenoid valve designed to ensure control of the gripper tight line action.
• So that the tangential effect more perfect.
• Special design front, the front can be installed parallel or inclined dual function, without the addition of full ramp.
• Automatic power designed to allow machine repair personnel safer during maintenances Increased mechanical stepless head function.

TECHNICAL PARAMETER

1. Max sewing speed    : 3000rpm
2. Max Stich Length     : 7.0mm
3. Meddle Feed           : DPx5
4. Supply Voltage        : 200-240V
5. Rated Power           : 750W
6. N.W.                       : 61 Kg
7. G.W.                       : 68 Kg

The Shibang-1791D and 1792D series represent the pinnacle of industrial sewing technology tailored for demanding manufacturing environments. These machines are designed to provide high efficiency, precision, and durability in a wide range of heavy-duty sewing applications. Whether you require a single-needle (1791D) or double-needle (1792D) configuration, these models deliver consistent performance optimized for medium to heavy fabrics including leather, canvas, denim, and technical textiles. Crafted with robust materials and integrated with advanced servo motor technology, the Shibang-1791D/1792D machines combine speed, precision, and user-friendly operation to maximize productivity while minimizing downtime and operational costs.

Product Overview

Shibang-1791D Single Needle Industrial Sewing Machine

The Shibang-1791D is a high-speed, single-needle lockstitch sewing machine engineered for applications requiring strong, consistent stitching. With its powerful servo motor and automatic lubrication system, it supports smooth operation and reduces wear, extending the machine’s lifespan. This model is ideal for stitching medium to heavy materials such as garments, leather goods, automotive upholstery, and industrial textiles.

Shibang-1792D Double Needle Industrial Sewing Machine

The Shibang-1792D features a double-needle setup, allowing for parallel stitching, which is essential for producing durable seams and decorative finishes simultaneously. This model is widely used in the manufacture of jeans, bags, upholstery, and other heavy textile products requiring double stitching lines. It inherits the same core strengths as the 1791D but enhances productivity by enabling two needles to operate in tandem.

Technical Specifications

Lockstitch
Up to 4500 stitches per minute
DP×5 (double needle)
0–5 mm adjustable
Adjustable
High-efficiency servo motor
Automatic centralized lubrication
Standard industrial bed size
Adjustable pressure, quick release
AC 220V, 50/60 Hz
Approx. 65 kg

Key Features and Benefits

High-Speed Servo Motor Technology

Both models are equipped with state-of-the-art servo motors that offer energy efficiency, quieter operation, and precise control over stitching speed and needle positioning. Servo motors allow for smooth acceleration and deceleration, which reduces thread breakage and fabric puckering.

Automatic Lubrication System

The machines come with a built-in automatic lubrication system ensuring critical components receive consistent oiling during operation. This feature minimizes wear and tear, reduces maintenance frequency, and prolongs machine life.

Robust Frame and Durable Components

Constructed with high-quality cast iron and steel components, the Shibang-1791D/1792D are engineered to withstand the rigors of industrial production environments. The rugged design ensures stable operation at high speeds without vibration or loss of stitch quality.

Versatile Stitch Length Adjustment

Operators can easily adjust stitch length to accommodate a variety of fabric types and sewing requirements, enhancing versatility and enabling fine control for specialized applications.

User-Friendly Interface and Controls

The machines feature ergonomic controls including quick-adjust presser foot pressure, stitch length knobs, and thread tension dials. The user interface is designed for quick training and efficient workflow on the factory floor.

Double Needle Efficiency (1792D)

The double needle configuration doubles productivity by stitching two parallel rows simultaneously. This capability is critical for manufacturing jeans, heavy-duty bags, and upholstery where seam strength and appearance are paramount.

Applications

The Shibang-1791D and 1792D industrial sewing machines are ideal for use in a variety of sectors including:

• Garment Manufacturing: Ideal for jeans, jackets, workwear, and uniforms requiring durable stitching.

• Leather Goods: Suitable for leather bags, wallets, belts, and footwear.

• Automotive Upholstery: Used for stitching car seats, headliners, and interior panels.

• Home Furnishings: Upholstery, cushions, curtains, and heavy fabric household goods.

• Technical Textiles: Industrial filters, tarps, sails, and other specialty fabrics.

• Canvas and Outdoor Gear: Tents, backpacks, and outdoor furniture covers.

Operation Guide

Setup and Installation

• Place the machine on a sturdy industrial table or workstation.

• Connect the servo motor power supply (220V AC).

• Thread the machine according to the manual instructions.

• Adjust the presser foot pressure depending on fabric thickness.

• Set the stitch length and tension according to material and stitch requirements.

• Perform a test stitch on scrap material to verify settings.

Basic Operation

• Use the foot pedal to start sewing.

• The servo motor allows precise control of sewing speed.

• Monitor the thread tension and adjust as necessary during sewing.

• Utilize the quick-release presser foot for fabric changes or seam alterations.

Maintenance and Troubleshooting

Regular Maintenance

• Clean lint and dust from the bobbin area and feed dogs daily.

• Check and refill the automatic lubrication oil reservoir weekly.

• Inspect needle condition and replace regularly to avoid skipped stitches.

• Tighten screws and bolts monthly to maintain structural integrity.

Common Troubleshooting

• Thread Breakage: Check tension settings and needle condition.

• Skipped Stitches: Replace worn or bent needles and ensure proper threading.

• Motor Issues: Inspect servo motor connections and reset controls.

• Lubrication Problems: Refill oil and check lubrication system for blockages.

Comparison with Other Models

Compared to other models in the Shibang series, the 1791D and 1792D stand out for their:

• Higher max speed capabilities

• Enhanced servo motor efficiency

• Superior lubrication system

• Greater stitch length versatility

• Double needle functionality (1792D) for increased productivity

Industry Impact and User Testimonials

The Shibang-1791D/1792D have gained acclaim in the garment and leather goods industries for their reliability and stitch quality. Leading manufacturers report reductions in downtime and maintenance costs, along with improved output rates thanks to the machines’ robust design and advanced technology.The Shibang-1791D and 1792D are the ideal industrial sewing machines for manufacturers demanding speed, durability, and precision. Whether single or double needle, these machines provide flexible solutions for a wide array of industrial sewing applications, backed by advanced servo motor technology and an automatic lubrication system for long-lasting performance.