MACHINE NAME: VACUUM PEELING SHOE UPPER LEATHER EDGE SCRAPING MACHINE DOUBLE DIRECT DRIVE HIGH-PRECISION SKIVING MACHINE

MODEL NO: TH-308S 

BRAND: TENGHONG  

FEATURES

• Adopting patented technology and precise design, the whole machine is convenient, and at the same time, it adopts up and down differential feeding, which can replace different feeding wheels with root distance materials. The mechanism is excellent in design, with high precision, durability, simple and convenient operation.
• It adopts the first domestic spray cooling device, which can adjust the size of the spray mist according to the different trimming materials, and can choose two modes of wire mounting and spraying. The cold spray device is the first in China, durable and reliable, and operates Convenient.
• The upper differential feeding adopts a gearbox with a reasonable speed ratio to feed synchronously to ensure the stability of the cutting product, and the cutting surface is smooth and even. 
• Using precise gearbox rotation, it is especially suitable for the trimming of extra-thick and extra-hard materials. It can also be used for thin edge sheets of special materials such as hot melt adhesive, counter, middle soleplate, sponge, EVA, and foamed cotton. 
• The maximum width of plane thinning is 50mm, and the processing thickness is 0.5-5mm. 
• Adopt enhanced feeding speed regulating motor. 
• The spindle adopts adjustable speed servo motor. 
• Comes with a cooling system.

TECHNICAL PARAMETER

1. Voltage                 : 220V
2. Power                   : 0.4 KW
3. N.W.                     : 45 Kg
4. G.W.                     : 65 Kg
5. Dimension             : 1200x650x1500mm
6. Round Knife Speed : 500Rpm-3500Rpm

In the modern footwear and leather product manufacturing industry, precision, efficiency, and material integrity are paramount. The Vacuum Peeling Shoe Upper Leather Edge Scraping Machine (TH-308S) is engineered to meet and exceed these expectations through a meticulously crafted balance of patented mechanical innovation, automated consistency, and operator convenience. This machine is not merely a component of the production line—it is a state-of-the-art technological solution that transforms the skiving process for various leather and synthetic materials. From soft upper leather to thick composite materials like EVA and foamed cotton, the TH-308S ensures top-tier edge preparation with unrivaled finesse and operational reliability.

Advanced Technology and Patented Mechanical Engineering

At the core of the TH-308S is a collection of patented design elements that collectively deliver unmatched performance. One of the standout features is its up-and-down differential feeding system, which provides precise control over how material is guided through the skiving mechanism. This differential feeding is essential when working with diverse material types and thicknesses, especially where consistent edge quality is critical. This patented design supports quick switching between various feeding wheels based on the root distance of the material in use. Whether the material is narrow, wide, dense, or flexible, the machine's feeding system adapts seamlessly, ensuring that the material maintains a smooth trajectory and consistent contact with the cutting blade. Notably, the feeding mechanism's exceptional design precision and durable build quality reduce the need for frequent maintenance, enhance material yield, and improve cutting surface finish. Operators benefit from a simplified control interface and a mechanism that requires minimal adjustment, which shortens setup times and enhances throughput.

China’s First Domestic Spray Cooling System

One of the most innovative breakthroughs of the TH-308S is its integrated spray cooling device—a first-of-its-kind solution in domestic machinery for leather skiving. Traditional skiving machines often face performance degradation or material burning due to heat generated during high-speed edge scraping, especially on hard or layered materials.

The TH-308S overcomes this with an adjustable mist spray cooling system. Operators can fine-tune the size and intensity of the mist spray to match the specific requirements of the trimming material. Whether working with heat-sensitive adhesives, dense leather composites, or synthetic foams, this spray system helps maintain optimal cutting temperatures.

This innovation serves two primary functions:

1. Thermal Management: By cooling the cutting interface, it prevents material warping, melting, or discoloration.

2. Lubrication Enhancement: The mist also acts as a mild lubricant, reducing friction on the blade and extending the life of the round knife.

Further enhancing the system’s versatility, the spray unit offers two distinct modes: wire mounting and direct spraying. This allows for either fixed-target application or broad mist coverage, based on material geometry and production speed. The spray device, built for industrial reliability, is also durable, easy to maintain, and operator-friendly.

Upper Differential Feeding with Gearbox Synchronization

To ensure consistent feed quality, especially when working with intricate patterns or sensitive materials, the TH-308S employs a high-precision gearbox-based upper differential feeding mechanism. The gearbox is engineered with a refined speed ratio, which synchronizes perfectly with the lower feed to maintain uniform pressure and feed speed across the entire material width. This synchronization is vital for cutting stability, resulting in edge surfaces that are smooth, clean, and burr-free. Whether skiving soft, supple leather or dense rubber composites, the result is the same: high-quality output with minimal need for post-processing. Moreover, the design of the gearbox mechanism promotes operational silence and mechanical efficiency, supporting long-term usage without overheating or wear. For manufacturers producing thousands of units per shift, this translates to lower downtime, higher productivity, and fewer rejected materials due to poor edge finishing.

Versatility for a Broad Range of Materials

The TH-308S stands out for its adaptability to a wide spectrum of material types and densities. Thanks to its robust skiving system and servo-controlled feed, this machine can handle both ultra-thick and ultra-hard substrates as well as soft or thin sheets, without the need to switch machines or perform manual edge preparation.

Materials it can process effectively include:

• Hot melt adhesive films

• Counter and insole boards

• EVA (Ethylene-vinyl acetate)

• Foamed cotton

• Sponge laminates

• Natural and synthetic leathers

This adaptability is crucial for production environments that deal with multi-layer composites, hybrid shoe uppers, or dual-material constructions. With the TH-308S, the operator can transition quickly between product types without complex reconfiguration. The use of a precision gearbox ensures that even with tough materials, the rotation speed and torque remain consistent, protecting the integrity of the cut while reducing blade wear.

Large Thinning Width and Adjustable Processing Depth

With a maximum plane thinning width of 50mm, the TH-308S offers one of the widest edge processing capabilities in its class. This broad width allows manufacturers to skive large surface areas in a single pass, reducing the time and labor required for wide components such as boot uppers, bag panels, and large straps. Complementing the wide skiving path is an adjustable processing thickness range from 0.5mm to 5mm. This depth control provides exceptional flexibility when tailoring edge thickness to different end-use applications, whether a feathered edge is needed for overlapping seams or a thicker base is required for structural support. These mechanical tolerances are regulated by a precision depth control system, which enables micrometric adjustments and maintains depth consistency throughout the feed, critical for ensuring uniform bonding and stitching performance in downstream operations.

Enhanced Feeding Speed Regulation and Intelligent Servo Control

Speed, consistency, and variability are crucial in any skiving process, especially when material properties change mid-roll or when different material batches are processed together. To address this, the TH-308S includes an enhanced feeding speed regulating motor, which allows the operator to dynamically adjust feed speed without halting operations. This is essential for handling sudden changes in material tension, width, or grain alignment.

Additionally, the main spindle is driven by an adjustable speed servo motor, offering smart control over the round knife’s rotation speed. The spindle speed ranges from 500 rpm to 3500 rpm, enabling the operator to fine-tune cutting performance based on:

• Material resistance

• Blade type

• Desired finish

• Production speed

The servo motor system not only improves energy efficiency but also contributes to superior torque delivery, especially under heavy loads. Servo systems are also known for their fast response and high positional accuracy, making them ideal for precision tasks like edge skiving.

Built-in Cooling System for Long-Term Reliability

In addition to the spray cooling feature, the TH-308S is equipped with an internal cooling system designed to regulate the internal temperature of the machine components during extended use. This cooling system safeguards core parts such as:

• The servo spindle motor

• The gearbox

• Feeding rollers

• Cutting knife bearings

By maintaining a consistent operating temperature, the machine minimizes thermal expansion and mechanical deformation, thus ensuring cutting accuracy over long production cycles.

This layer of thermal protection reduces the likelihood of machine stoppage due to overheating and extends the lifetime of internal components, making the TH-308S a smart long-term investment for high-volume manufacturers.

Technical Specifications Overview

Though no tabular data is included as per your instruction, here is a narrative summary of the TH-308S’s key technical parameters: This model operates on a 220V power supply, drawing a total power of 0.4 kW, which provides an efficient energy footprint relative to its performance capabilities. The machine itself is solidly constructed with a net weight of 45 kilograms and a gross shipping weight of 65 kilograms, making it stable during operation and relatively portable for installation across various production lines. In terms of physical footprint, the dimensions measure 1200mm in length, 650mm in width, and 1500mm in height, making the machine compact enough to fit into smaller workshops yet robust enough for full-scale factory deployment. The cutting knife (round knife) operates across a broad speed range—from 500 revolutions per minute (rpm) to 3500 rpm, allowing for a fine degree of control based on application requirements.

Applications Across Footwear and Leather Goods Industries

The TH-308S is an ideal choice for manufacturers engaged in the production of:

• Men’s and women’s leather shoes

• Athletic footwear

• Boots and heavy-duty shoes

• Leather bags and accessories

• Shoe counters and midsoles

• Custom orthotic inserts

• Sporting goods and gloves

Its capability to handle a wide range of material types and thicknesses also makes it suitable for non-footwear applications such as automotive interiors, industrial belts, and heavy-duty leather covers.

Operator-Focused Design

While much of the focus is rightly placed on precision and innovation, the TH-308S is also ergonomically designed with the operator in mind. The control system features intuitive knobs and dials, while maintenance access points are positioned for easy reach. Incorporated safety features, such as emergency stop buttons and enclosed mechanical areas, help reduce the risk of accidents. Protective shielding near the round knife and a clearly defined working surface make the machine suitable even for semi-skilled operators, reducing training time and potential operational errors.

Maintenance and Support

Despite its complexity, the TH-308S is built for low-maintenance operation. The use of durable, wear-resistant materials in the drive and feed systems ensures long service intervals. When maintenance is required, the modular design allows for easy access to all critical parts, reducing downtime. Routine tasks such as blade sharpening, mist tank refills, and filter cleaning are simple and can be performed in-house without the need for specialist tools. A service-friendly manual and optional training program are available to ensure that operators and technicians can maximize the utility and lifespan of the machine.

The Vacuum Peeling Shoe Upper Leather Edge Scraping Machine TH-308S represents the convergence of advanced mechanical engineering, user-focused design, and industrial versatility. Its patented features, robust cooling system, adjustable cutting speed, and ability to handle diverse materials make it one of the most powerful and reliable skiving machines on the market. Whether you're a boutique shoemaker looking to improve consistency or a large-scale manufacturer seeking efficiency and scalability, the TH-308S is a forward-thinking investment that delivers superior results with minimal operating friction. In today’s competitive manufacturing landscape, quality and efficiency aren’t optional—they’re essential. With the TH-308S, you gain a decisive edge in both . Would you like a version of this content formatted for print brochures, technical manuals, or multilingual product catalogs? I can assist with that as well.