AUTOMATIC CEMENTING HEEL SEAT LASTING MACHINE TH-727MA

MACHINE NAME: AUTOMATIC CEMENTING HEEL SEAT LASTING MACHINE 

MODEL NO: TH-727MA

BRAND: TENGHONG   

FEATURES

1. This machine is suitable for lasting the shoes with general and soft mid- soles and with the heels at the height less than 180mm.

2. Positioning rod is equipped the height micro-adjustment structure, which makes the height of shoe lasting adjustment easily and accurately to position.

3. We have full sizes of wipers and toe forming bands which were wrapped by chain to fit any shape of shoes for the best result.

4. Auxiliary supporter adopts gears, gear racks and ratchets, quick and accurate to adjust the height.

5. The second time pressing of last supporter is designed to work with the wiper preheat device to keep heel smoothly and no angles, increasing the lasting result to upgrade the shoe quality. It makes the lasting are as smoothly increases the lasting result, and upgrades the quality of shoes.

6. This machine has automatic gluing function, which can save manual brushing time and improve production efficiency.

TECHNICAL PARAMETER

1. Capacity                 : 2000 pairs/8H
2. Power                     : 2HP (1.5Kw)
3. Net weight              : 455kg
4. Oil pressure            : 40kg/cm2
5. Heating Power         : 1.02kw 
6. Oil Filling                : 50 liters 
7. Gross weight           : Be provided before shipment. 
8. Dimension               : 970(L)x750(W)x1450mm(H)
9. Packing size            : 1250(L)x780(W)x1700mm(H)

The TH-727MA Automatic Cementing Heel Seat Lasting Machine represents the latest advancement in footwear manufacturing technology, tailored specifically to automate and enhance the critical heel seat lasting process in shoe production. Designed for both mid-to-high volume factories and bespoke shoemaking workshops, this machine delivers superior precision, efficiency, and consistency in cementing and lasting the heel seat section of shoes. Featuring cutting-edge automation technology, robust construction, and easy-to-operate controls, the TH-727MA helps manufacturers significantly increase throughput, reduce labor costs, and achieve uniform quality in every pair of shoes produced. With compatibility for a wide range of shoe styles and materials, this machine is a versatile addition to any modern footwear production line.

What is Heel Seat Lasting and Why Does It Matter?

Heel seat lasting is the process of firmly attaching the heel area of a shoe upper to the insole and shoe last to create a smooth, well-shaped heel contour. This step is crucial for:

• Ensuring the structural integrity of the heel portion.

• Improving aesthetic appeal by preventing wrinkles and creases.

• Increasing wearer comfort by creating a smooth heel fit.

• Enhancing the durability of the shoe during wear and tear.

In traditional manual lasting, this process is labor-intensive, inconsistent, and prone to errors such as improper adhesion or misalignment. The TH-727MA automates this essential step using precise cement application and lasting pressure to ensure perfect adhesion and heel shaping every time.

Fully Automatic Cementing and Lasting Operation

The TH-727MA integrates automatic adhesive application with lasting pressure in a synchronized operation cycle. This automation eliminates manual glue spreading, which is often uneven and messy, and replaces it with a controlled cementing system that applies the exact amount of adhesive precisely where needed.

• Automatic glue dispensing nozzles.

• Timed pressing cycle for optimal bonding.

• Reduced cement waste and a cleaner working environment.

Advanced Mechanical Pressing System

Equipped with a multi-point pressing pad mechanism, the TH-727MA delivers uniform pressure over the heel seat, ensuring strong adhesion and consistent shaping without deforming the upper material.

• High-precision pressing fingers shaped to heel contours.

• Adjustable pressing pressure tailored to the shoe material.

• Synchronized pressing action coordinated with cement application.

Intelligent Shoe Positioning and Clamping

Accurate positioning is vital for perfect lasting. The TH-727MA uses advanced sensors and mechanical clamps to hold the shoe securely in place, detecting and adjusting heel position automatically to guarantee precise alignment.

• Automatic last clamp adjustment for various shoe sizes.

• Optical or proximity sensors for heel seat detection.

• Real-time positional feedback to the control system.

Multi-Material Compatibility

The machine supports a variety of materials commonly used in shoe uppers and insoles, including:

• Genuine leather

• Synthetic leather

• Textile fabrics

• EVA foam

• Rubber and plastic composites

By adjusting cement volume and pressing parameters, the machine ensures reliable adhesion across these diverse materials.

Touchscreen Interface with Programmable Settings

Operators control the TH-727MA via an industrial-grade touchscreen panel featuring an intuitive user interface with:

• Pre-set programs for different shoe styles and sizes.

• Customizable cementing time, pressure, and glue volume.

• Diagnostic tools and alerts for maintenance needs.

Robust Construction and Safety Features

Built to withstand heavy industrial use, the machine features:

• Heavy-duty steel frame with corrosion-resistant coating.

• Safety guards and emergency stop buttons on all accessible sides.

• Compliance with CE safety standards.

Technical Specifications

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Working Principle and Operation

Shoe Preparation and Placement

The shoe upper is pre-assembled on the last and positioned manually or automatically on the machine’s adjustable last clamp. The clamps gently hold the shoe in place without damaging delicate materials.

Automatic Adhesive Application

Once the shoe is secured, the machine activates the glue dispensing nozzles that apply a precise, uniform layer of cement along the heel seat area. The adhesive amount is programmable to suit different materials and shoe types.

Heel Seat Pressing

After cementing, the pressing pads descend and exert uniform hydraulic or pneumatic pressure across the heel seat. The pressing fingers are designed to mold the upper to the last contours perfectly, avoiding wrinkles or gaps.

Pressing Time Control

The pressure is held for a pre-set duration, allowing the adhesive to bond securely. This timed pressing guarantees strong adhesion and optimal shaping.

Release and Removal

After the pressing cycle completes, the pressing pads retract, the clamps loosen, and the shoe is removed either manually or automatically for the next production step.

Benefits of the TH-727MA

Significant Labor Savings

Automating both cement application and heel seat lasting minimizes manual labor requirements, cutting workforce needs and reducing operator fatigue.

Consistent High Quality

Machine-controlled adhesive application combined with uniform pressing results in flawless heel seats with minimal rejects or rework.

Reduced Material Waste

Precise glue dispensing reduces overuse of adhesives and prevents glue spillage, making the process cleaner and more cost-effective.

Improved Production Speed

With a cycle time of approximately 15-20 seconds per pair, the TH-727MA significantly boosts daily output compared to manual lasting methods.

Versatile Shoe Compatibility

From casual sneakers to formal dress shoes and boots, this machine can be adjusted to handle a wide variety of styles and materials.

Enhanced Worker Safety

Built-in safety features protect operators from mechanical hazards, making the shoe factory a safer workplace.

Ideal Applications

• Footwear manufacturers specializing in cemented construction.

• OEM shoe factories require high-speed lasting.

• Medium to large-scale shoe production lines.

• Custom shoe makers want automated finishing.

• Factories producing dress shoes, boots, sneakers, and casual footwear.

Machine Components and Description

Mainframe

Constructed from heavy-duty steel with a powder-coated finish, the frame provides structural stability and vibration resistance, ensuring precise operation over years of use.

Last Clamp Assembly

The shoe last clamp is pneumatically or hydraulically operated and adjustable to hold different shoe sizes firmly without deforming the upper.

Adhesive Dispensing Unit

Equipped with precision glue nozzles, the unit automatically controls cement volume and placement. The system supports various cement types, including EVA-based and polyurethane adhesives.

Pressing Pads

The pressing system consists of multiple elastomer-covered fingers shaped to mold the heel seat perfectly. Pads are replaceable and adjustable for pressure intensity.

Control Panel

The touchscreen HMI panel offers simple navigation through settings, program selection, and diagnostics. It also stores frequently used programs for fast changeovers.

Safety Enclosures and Guards

Transparent safety shields protect operators from moving parts while providing clear visibility of the lasting process.

Operation Workflow

Maintenance Guidelines

Regular maintenance ensures the machine operates reliably and with minimal downtime.

• Daily: Clean glue nozzles, check adhesive levels, and inspect pressing pads.

• Weekly: Lubricate moving parts, inspect clamp mechanisms.

• Monthly: Test sensors and control systems, clean filters.

• Yearly: Replace hydraulic fluid (if applicable), full machine inspection.

Operators receive detailed maintenance manuals and training for efficient upkeep.

Customization and Optional Upgrades

• Heated Last Clamp: For materials requiring heat activation of adhesives.

• Automatic Conveyor Integration: For seamless production line operation.

• Remote Monitoring: IoT-enabled systems for performance tracking and troubleshooting.

• Additional Size Memory Slots: For factories producing multiple shoe models.

Safety Features

• Emergency stop buttons are accessible from all sides.

• Safety interlocks on all access panels.

• Overload and pressure sensors to prevent mechanical failures.

• CE and ISO compliant.

Why Invest in the TH-727MA?

Customer Testimonials

Switching to the TH-727MA reduced our heel lasting time by 50% and almost eliminated defects in that critical shoe area.
— Production Manager, XYZ Footwear

The glue application system is precise and clean, making our work environment much better.
— Factory Operator, ABC Shoes

The TH-727MA Automatic Cementing Heel Seat Lasting Machine offers shoe manufacturers a sophisticated, reliable, and efficient solution for one of the most challenging finishing processes in shoe production. By combining automation, precision cementing, and adjustable lasting pressure, it enables high throughput without compromising on quality. This machine is an essential investment for factories aiming to modernize operations, improve product consistency, and reduce operational costs. With strong global support and easy integration into existing production lines, the TH-727MA is poised to become the cornerstone of your heel lasting process.