The prunes dryer machine is a specialized industrial drying system designed specifically for processing fresh plums into high-quality prunes. Unlike generic dryers, this equipment addresses the unique challenges of prune drying: نسبة عالية من السكر, surface stickiness, susceptibility to browning, and the need for a tender-yet-chewy final texture. Whether you process French Agen plums, California d’Agen, or Japanese varieties, this machine delivers consistent moisture removal while preserving natural color, نكهة, والقيمة الغذائية. It is widely adopted by medium-to-large scale prune processors across Europe, North America, South America, and Asia.

Unlike traditional dryers that constantly exhaust hot air, this machine operates on a recirculating heat pump dehumidification principle. Here is the step-by-step process:

1. Air heating & التجفيف – The heat pump evaporator cools incoming air to below its dew point, condensing moisture out of the system. The dry, cool air then passes through a condenser where it is reheated to the preset drying temperature (على سبيل المثال, 55°C for prunes).

2. Closed-loop circulation – The hot, dry air is blown evenly through the drying chamber, absorbing surface moisture from the plums. Instead of being expelled, the humid air returns to the evaporator for dehumidification and reheating – losing virtually no heat to the environment.

3. Multi-stage drying program – A PLC controller automatically adjusts temperature and humidity in three phases:

   • Phase 1 (60–65°C, high airflow) – Quickly removes surface moisture without cracking the skin.

   • Phase 2 (55–58°C, moderate airflow) – Slowly pulls internal water to the surface, preventing case hardening.

   • Phase 3 (45–50°C, low airflow) – Finishes drying to a final moisture content of 18–22%, ensuring a tender, نسيج مطاطي.

4. Automatic stop – A built-in humidity sensor stops the cycle when the target moisture is reached, avoiding over-drying.

The entire process takes 18–28 hours, depending on plum variety and loading density – all without generating hot spots, حرق السكر, or uneven results.

سعة عالية / العملية المستمرة
تتيح آلة التجفيف المستمرة هذه على مدار الساعة, إنتاج دون انقطاع, مع ارتفاع الناتج والكفاءة, مما يجعلها مناسبة للإنتاج الصناعي على نطاق واسع.

تجفيف موحد / اتساق عالية الجودة
إن اختراق الهواء الساخن متعدد المراحل وهيكل حزام شبكي للغاية يضمن توزيع الهواء الساخن في جميع أنحاء الطبقة المادية, بفعالية منع الإفراط في التجفيف وتجفيف بعض الأقسام.

انخفاض استهلاك الطاقة / كفاءة حرارية عالية
يعيد تصميم الهواء الساخن وتصميم الدورة الدموية الحرارة; جنبا إلى جنب مع السيطرة المحلية المستقلة, يستخدم كل قسم الحرارة بشكل أكثر كفاءة, توفير الطاقة.

التغذية الممتازة والحفاظ على الألوان
التحكم الدقيق في درجة الحرارة ودرجات حرارة تجفيف منخفضة (قابل للتعديل على أساس قسم على حدة) تقليل تدمير المكونات الحساسة في الجزر, مثل الفيتامينات, كاروتين, والأصباغ.

مرن / قابل للتطوير / البصمة الصغيرة
الوحدة, يسمح بنية الطبقة متعددة الطبقات بسعة إنتاج كبيرة ضمن مساحة مصنع محدودة. يتطلب التوسع المستقبلي وحدات إضافية فقط.

سهولة التشغيل والصيانة / أتمتة عالية
نظام التحكم الذكي وآليات النقل التلقائي وإزالة الرطوبة يقلل من التدخل اليدوي إلى الحد الأدنى, مما أدى إلى تشغيل مستقر وتكاليف الصيانة المنخفضة.

1. Closed-Loop Heat Pump System with R134a/R290 Refrigerant

The core component is an industrial-grade heat pump unit that both dehumidifies and reheats air inside a sealed chamber. No exhaust duct is needed – 100% of heat is recycled.

2. Stainless Steel Drying Chamber & Multi-Layer Trays

All food-contact surfaces are SUS304 stainless steel (SUS316 optional). Trays are designed with a non-stick mesh pattern to prevent prunes from adhering during the high-sugar drying stage. Each tray can hold 10–15 kg of fresh plums.

3. بلك + HMI Intelligent Control with 10 Preset Programs

A 7-inch touchscreen allows you to set time, درجة حرارة, رطوبة, and fan speed for each drying stage. You can save up to 10 custom programs – for example, one for early-season plums (higher moisture) and another for late-season plums.

4. Reversible Airflow Fans

Two large axial fans inside the chamber reverse direction every 30–40 minutes. This eliminates “drying shadows” – areas where air cannot reach – ensuring every prune on every tray dries at the same rate.

1. Higher Selling Price with Grade-A Prunes

Grade-A prunes (uniform size, intact skin, soft chew, bright purple-black color) sell for 40–60% more than Grade-B or sun-dried prunes in export markets like Germany, UK, اليابان, and USA. Our dryer consistently produces 90%+ Grade-A output from good-quality fresh plums.

2. Weather-Independent Production – Dry Even During Rainy Seasons

Sun drying takes 5–10 days and can be ruined by unexpected rain, dew, or insects. With a heat pump dryer, you harvest in the morning and start drying within 2 ساعات. You can operate 24/7 during the 6–8 week plum harvest window, processing multiple batches without weather delays.

3. Lower Operating Cost = Higher Net Margin

• طاقة: Save 70% vs. electric dryer.

• Labor: Automated controls require only 1–2 hours of daily supervision (loading/unloading trays).

• صيانة: Heat pump compressor needs service once every 3–5 years. No heating elements to replace.
  Many customers achieve full ROI within 8–14 months.

4. Meets International Food Safety & Export Standards

البناء الفولاذ المقاوم للصدأ, smooth welds, and absence of combustion gases make it easy to pass HACCP, GMP, and BRC audits. We provide complete documentation (material certificates, م, ايزو) to support your export certification.

ال heat pump prunes dryer machine is not a standard dehydrator – it is a purpose-built, energy-saving system that respects the delicate nature of plums. Its closed-loop heat pump design, low-temperature operation (max 65°C), reversible airflow, and non-stick stainless steel trays directly address the biggest challenges in prune processing: حرق السكر, sticking, uneven drying, and high energy costs. The advantages translate into tangible benefits: higher Grade-A yields, weather-independent production, lower operating costs, and full export compliance. With proven third-party evidence and hundreds of satisfied users worldwide, this dryer is the smart investment for any prune processor who wants premium quality at the lowest possible cost per kilogram.

الاستفسار Huafood واتس اب خط Wechat:+8615249682442