| What are the advantages and disadvantages of automatic flat drying machine? |
| Hits：182 AddTime：2026-06-25 20:13:38 |
| 1、 Core advantages of automatic leveling and drying machine (leather stretching machine) 1. Product quality advantage (core value) Four directional uniform stretching, good shaping effect Two way/four-way mechanical automatic leather stretching, synchronized horizontal and vertical stretching, leather will not shrink unilaterally, the skin tension is flat without waves or wrinkles, the pores are evenly opened, the leather yield is increased by 5% to 8%, and the leather surface grade is significantly improved. Uniform drying, stable and controllable moisture content Sealed hot air circulation, segmented temperature control, consistent dryness and wetness of the entire leather, avoiding local dryness and hardening, local moisture and mold growth. The finished product has a soft and stable feel, greatly reducing subsequent repairs. Tension parameters can be digitally locked The PLC sets the stretching amount (adjustable from 0 to 160mm), and the stretching force is uniform for the same batch. The product consistency is much higher than that of manual stretching, making it suitable for large-scale standardized production. 2. Production efficiency and manpower advantages Highly automated, with minimal employment Automatic feeding, stretching, drying, flipping, and discharging. Traditional manual stretching requires 3-4 people, while automatic models only require one operator to place the leather sheets, which can reduce labor by more than 75% and significantly reduce wage costs. Continuous cycle operation, high production capacity The rotating and circulating mesh plate can operate continuously for 24 hours without interruption, and the daily production capacity of a single machine is more than twice that of old-fashioned box drying, with stable and controllable output. Fixed rhythm for easy production scheduling Drying time and transmission speed can be locked with one click, with a constant production cycle, making it convenient for the entire leather production line to be linked and matched. 3. Energy consumption and operational advantages Hot air closed circulation, high thermal efficiency Double layer insulation and waste heat recovery in the drying room reduce steam/electricity consumption by 20% to 35% compared to open drying and oven direct discharge, resulting in significant energy-saving effects during long-term operation. Strong process compatibility The heat source can be steam, thermal oil, electric heating, or gas; The temperature can be adjusted in sections from 30 to 95 ℃, and can be adapted to cowhide, sheepskin, pigskin, shoe upper leather, furniture leather, and clothing leather. Compact footprint The rotating vertical model fully utilizes the height space, while the horizontal chain plate model has a well-organized layout, resulting in a high utilization rate of factory space. 4. Operation and maintenance stability Mechanical+pneumatic tensioning mechanism, stable tension; The mesh frame is rust resistant and durable; Equipped with cushioning and shock absorption, it rarely causes frame breakage or skin damage; Equipped with counting and overload protection, it has a low failure rate. 2、 Main drawbacks 1. High investment in disposable equipment The overall cost of the machine is much higher than that of simple manual stretching machines and ordinary ovens. Small and medium-sized workshops face significant financial pressure in the early stages and have a longer payback period. 2. There are mandatory requirements for the venue and supporting facilities The rotating model has a high height, and the height of the factory building must meet the standard; Horizontal models have long bodies and require regular long workstations; Steam heating requires a matching boiler and pressure pipeline. Without a steam heat source, only electric heating can be used, which will increase operating costs; Stable compressed air supply is required, as insufficient air supply can lead to insufficient force on the leather claws and result in looseness. 3. Lack of flexibility, limited by small shaped materials Suitable for standardized production of whole large leather; Scattered scraps and irregular small pieces of leather cannot be clamped and flattened, and can only be processed separately; The stretching stroke is fixed, and thin and soft leather is prone to thinning and excessive stretching, requiring frequent program switching. Frequent material changes will reduce efficiency. 4. There is a certain technical threshold for maintenance The equipment includes chain drive, cylinder, servo tension, PLC electronic control, hot air fan and temperature control valve: Pneumatic components and seals are prone to aging in long-term high-temperature and humid environments and require regular replacement; Long term load-bearing chains and tracks are prone to wear and tear, and inadequate maintenance can cause the mesh to jam or deviate; Once the electronic control system malfunctions, ordinary maintenance workers find it difficult to quickly troubleshoot and rely on professional after-sales service. 5. Minor loss issue The four sides of the clamping position will leave slight clamping marks, and a small area of the edge will be clamped and unable to fully stretch; When the tension is set too high, the thin sheepskin is easily stretched and elongated, resulting in the pattern exceeding the standard. 6. There are a few energy consumption shortcomings in operation The continuous and uninterrupted hot air circulation fan operates at full load for a long time, and it will continue to consume electricity even when it is idle and in standby mode; When producing intermittently in small batches, the drying room repeatedly heats up, and the energy consumption utilization rate will decrease. 3、 Selection Summary (Horizontal Chain Plate Version vs Rotary Cycle Version) Horizontal automatic flat drying machine Advantages: Short body, easy installation, convenient maintenance, suitable for small and medium-sized production; Disadvantages: There are fewer workstations and the continuous production capacity is not as good as that of rotary machines. Vertical rotating automatic leveling dryer Advantages: Large production capacity, less land occupation, higher heat utilization rate, suitable for mass production in large and medium-sized tanneries; Disadvantages: Higher cost, strict requirements for factory conditions, more complex structure, and slightly higher maintenance costs. |
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