MACHINE NAME: CYLINDER-TYPE INDUSTRIAL SEWING MACHINE

MODEL NO: SB-335B/335BH

BRAND: SHIBANG

FEATURES

1. The diameter of arm is 46mm, it is specially designed for join- sewing for sleeve and trousers tubular section. this machine can be used for cloe-to-edge assembly and smooth stitch. excellent design for the stitch and formation. suitable for shoes, package, toys etc.

TECHNICAL PARAMETER

1. Sewing Speed         : 2500rpm
2. The foot to promote: 10mm
3. Stitch length           : 5.5mm
4. Needle                    : DPx17

The Shibang-335B/335BH Cylinder-type industrial-grade sewing machine represents a benchmark in performance, reliability, and technological advancement in the world of heavy-duty sewing equipment. Specifically engineered for the precise needs of leather goods, shoes, saddlery, and other thick-material applications, this machine boasts powerful features tailored for professionals demanding both versatility and precision. The Shibang-335B and its variant, the 335BH, are renowned for their ability to work on cylindrical objects and curved surfaces with immaculate stitch quality and minimal manual intervention.

Ergonomic Cylinder-Type Design for Seamless Tubular Work

At the core of the Shibang-335B/335BH is its signature cylinder-type bed, meticulously engineered to handle tubular, curved, or three-dimensional sewing applications that traditional flatbed machines cannot accommodate efficiently. Whether you're working on footwear, bags, or gloves, the cylinder-type design facilitates easy movement of complex shapes under the presser foot. This reduces fabric bunching, minimizes the need for repositioning, and greatly enhances operator efficiency. The design’s slim and rounded profile allows for exceptional access to difficult-to-reach areas, enabling smooth rotation of cylindrical items. Users can easily perform continuous stitching along the perimeter of products such as boot shafts, curved leather straps, and saddlery components—areas where precise, controlled movement is crucial.

Unparalleled Versatility in Heavy Material Handling

The Shibang-335B/335BH is specifically engineered to sew medium to heavy-weight materials, including thick leather, canvas, rubber-coated fabrics, and multiple textile layers. With its powerful feeding mechanisms and robust construction, it can consistently deliver uniform stitches even in high-resistance areas. From luxury handbags to heavy industrial workwear, the machine’s versatile capabilities extend its application across diverse manufacturing settings. Professionals working in upholstery, automotive interiors, saddlery, and orthopedic products will appreciate its consistency and adaptability. The machine allows for customizable tension settings, pressure adjustments, and stitch length modifications that make it an all-in-one solution for various production demands.

Triple Feed Mechanism for Ultimate Stitch Consistency

The Shibang-335B/335BH is equipped with a synchronized triple feed system—comprised of a needle feed, walking foot, and feed dog—which works in harmony to provide smooth material handling. This triple feeding action ensures that even the thickest or stickiest materials are fed uniformly, preventing stitch irregularities, puckering, and fabric slippage. This system is crucial for producing high-quality seams on multi-layered or adhesive-bonded materials, where a standard feed mechanism might falter. The walking foot's synchronized motion with the needle feed ensures that both the upper and lower layers of the material move simultaneously, avoiding any mismatched tension that can compromise stitch strength or appearance.

High-Lift Presser Foot for Bulky Material Clearance

One of the hallmarks of the Shibang-335B/335BH is its exceptionally high presser foot lift, allowing up to 14mm of vertical clearance. This feature is critical for handling bulky materials or multiple layers of fabric with ease. Whether you're dealing with thick seams or dense padding, the machine provides the clearance needed to maneuver them under the needle comfortably. Operators can lift the presser foot using either a hand lever or a knee-operated lifter, both of which are ergonomically designed for comfort and efficiency. This functionality streamlines the loading and unloading of workpieces, reducing strain and increasing productivity during long working hours.

Precision Needle Positioning and Thread Tension Control

Consistency and accuracy are crucial in heavy-duty industrial sewing, and the Shibang-335B/335BH delivers this with adjustable needle positioning and precision thread tension controls. These features allow operators to fine-tune the sewing process according to material type, thickness, and specific application requirements. Needle positioning, especially in multi-directional or curved sewing tasks, ensures that the needle enters the fabric at exactly the desired point, eliminating the risk of skipped stitches or misaligned seams. Thread tension can be adjusted for both upper and lower threads, enabling balanced stitch formation across varying densities.

Durability Engineered for Industrial Environments

Crafted with high-grade steel components and engineered for longevity, the Shibang-335B/335BH is designed to withstand the rigors of continuous industrial use. The internal components, including the shaft, gears, and feeding mechanisms, are built with wear-resistant alloys and treated surfaces to ensure minimal friction, heat generation, and wear. The machine’s heavy-duty chassis and balanced design offer low vibration and superior stability, which contributes to both user comfort and stitch consistency over long production cycles. This durability makes the machine a long-term investment for businesses that prioritize reliability and minimal downtime.

Optional Needle Position Motor and Electronic Controls

For users seeking enhanced automation, the Shibang-335B/335BH can be paired with a servo needle position motor, which offers programmable controls such as automatic needle up/down stop, backtacking, and speed regulation. This optional add-on provides greater operator control over stitch positioning, especially in repetitive or precision-demanding tasks. The integration with electronic controls enables seamless speed transitions and consistent output regardless of the operator’s experience level. With this upgrade, the machine becomes not just a mechanical workhorse but also a smart, semi-automated sewing solution for industrial manufacturers.

Silent Operation with Energy-Saving Servo Motor

The Shibang-335B/335BH optionally supports a high-efficiency servo motor, which operates almost silently compared to traditional clutch motors. Not only does this reduce noise pollution in the workplace, but it also minimizes power consumption, making the machine more eco-friendly and cost-efficient over time. The energy-saving motor provides precise control of speed (ranging from 200 to 3500 RPM) and ensures smoother acceleration and deceleration, which are essential for sewing intricate designs or managing transitions on curved seams. The ability to fine-tune the speed directly translates into fewer errors and reduced material wastage.

Optimized Bobbin System for Extended Productivity

The machine is equipped with a large-capacity horizontal-axis rotary hook and bobbin, allowing for extended stitching runs without frequent bobbin changes. This is especially beneficial in mass-production environments where downtime for thread replacement can significantly affect output. The bobbin winding system is efficient and automatic, allowing operators to wind a new bobbin even while the machine is actively stitching. This intelligent design keeps the production flow uninterrupted and enhances operational productivity across shifts.

Adaptability Through Custom Attachments

The Shibang-335B/335BH supports a wide range of optional accessories and attachments, allowing it to be customized for specific production lines. These include specialized presser feet for zipper insertion, binding, piping, or welting; stitch guides; and various edge trimmers. With these attachments, a single machine can be transformed to handle niche manufacturing needs. For instance, a simple conversion can make it suitable for decorative stitching on cowboy boots or precise topstitching on high-end handbags. This modularity reduces the need for multiple machines and lowers capital expenditure.

Minimal Maintenance, Maximum Uptime

Despite its mechanical complexity, the Shibang-335B/335BH is designed for easy maintenance. The internal mechanisms are lubricated via an automatic oiling system, ensuring consistent performance and reducing wear on moving parts. The external panels are accessible, and key components like the hook, bobbin case, and needle bar can be easily reached for routine cleaning or part replacement. Manufacturers and operators appreciate the machine’s ability to deliver uninterrupted performance for long periods without constant attention. This translates into maximum machine uptime, which is critical in high-volume industrial settings where each minute of delay impacts the bottom line.

Operator Comfort and Safety Enhancements

From a human factors perspective, the Shibang-335B/335BH is ergonomically designed to reduce fatigue during prolonged usage. The machine’s worktable and control panel are positioned at a comfortable height and angle, while the foot pedal requires minimal force to operate. Safety features include needle guards, belt covers, and overload protection, which protect the user from accidental injury. The optional electronic control unit can be configured to stop the machine immediately in case of thread breakage or jamming, preserving the integrity of the workpiece and ensuring operator safety.

Applications Across Multiple Industries

The versatility of the Shibang-335B/335BH makes it a go-to machine for numerous industries:

• Footwear Manufacturing: Ideal for upper assembly, decorative stitching, and heel reinforcement on leather shoes and boots.

• Bag and Luggage Production: Capable of precise topstitching and reinforcement on leather and synthetic materials.

• Saddlery and Tack: Handles thick leathers and multilayer harnesses with ease.

• Furniture and Upholstery: Suitable for sewing heavy fabrics and padded components.

• Automotive Interiors: Used for sewing leather seats, steering wheel covers, and door paneling.

Environmental and Economic Benefits

With its optional energy-saving motor, reduced adhesive and thread waste (thanks to the triple feed and tension control), and extended lifecycle, the Shibang-335B/335BH delivers both environmental and financial benefits. It supports sustainable manufacturing by minimizing energy usage and material loss, two critical factors for businesses aiming to meet green production goals. Additionally, the reduction in rework, downtime, and labor effort enhances profitability. The machine’s ability to retain settings for different stitch styles and fabric types also contributes to rapid changeovers and smoother production scheduling.

Why Choose the Shibang-335B/335BH?

The Shibang-335B/335BH Cylinder-type machine combines engineering excellence with modern production efficiency. Whether you’re sewing heavy leather boots, curved handbags, or cylindrical industrial products, this machine is equipped to deliver flawless results every time. Its blend of precision mechanics, intelligent feeding systems, and adaptable design makes it one of the most powerful tools in the industrial sewing market. In choosing the Shibang-335B/335BH, manufacturers are investing in a future-proof machine that meets today’s demanding workloads while remaining adaptable to future production needs. Its reliable operation, minimal maintenance, energy efficiency, and superb stitch quality make it an industry favorite for businesses serious about quality and throughput.