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Cold room panel lines for industrial cold storage construction
Cold storage rooms are built from continuous sandwich panels — PU-foam core between steel skins. We supply the continuous cold-room panel production line (10 – 40 panels per hour), the spray-foam systems for in-situ filling, and the PU raw material supply. Panels range from 50mm (chiller rooms) to 200mm (industrial freezer rooms) thickness.
In one line
Industrial-scale capability: continuous production lines up to 40 panels/hour with full hardware package (profile rollers, gluing stations, double-belt press).
- Food processing plants
- Cold chain logistics parks
- Pharmaceutical cold storage
- Supermarket central kitchens
Real pains we hear from buyers — and what we ship to solve each one
Four pains every cold-room-panel factory founder brings us. Our line ships with the fix for each.
Panels fail EN 14509 bond-strength test — steel skin separates from PU core in pull-off test
EN 14509 bond strength ≥0.10 MPa requires steel-skin chemical pre-treatment + PU adhesion calibration + press temp/time control. Our line ships with: PPGI steel skin specifically primed for PU bonding, calibrated cyclopentane PU adhesion package, hot-press 35–45°C control. Field-tested bond strength: 0.12–0.18 MPa, well above minimum.
Continuous press throughput 4 m/min on paper but real-world output is only 2.5 m/min — utilization gap eats my margin
Press throughput drops below spec when foam rise time + line speed + cure profile don't align. Our engineering tunes PU formulation rise time (90–120s) to match your target line speed (3–5 m/min). Pre-shipment FAT runs your actual panel spec on our test line to confirm throughput before crating. Field utilization typically 85–95% of rated speed.
Discontinuous vs continuous press — buyer offers different deal sizes, I don't know which line to invest in
Below 800K m²/year → discontinuous (lower capex USD 800K–1.5M, flexible thickness/length). Above 800K m²/year → continuous (USD 2.5M–5M capex, faster throughput, narrower thickness range). Mixed deals: most factories start with discontinuous, upgrade to continuous after 24 months when commercial orders stabilize.
Fire reaction EN B-s2,d0 needed for EU cold-room tender — my current panels only achieve E-class
Fire reaction class is driven by PU formulation chemistry (flame retardant package) + steel skin thickness + panel joint design. Our PU formulation includes the FR additive package certified to EN B-s2,d0 (limited combustibility). We supply the test certificate pack so EU tender submission has the EN 14509 + fire reaction class B documented.
ما تحتاجه
yongjiapu.com
ماكينة PU عالية الضغط
100–1500 جم/ث، 2–4 مكونات، Siemens PLC
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yongjiapu.com
ماكينة رش PU
نظام عزل متنقل، 5–20 كجم/دقيقة
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خط إنتاج ألواح غرف التبريد
خط مستمر، 10–40 لوحًا/ساعة، 50–200 مم
اعرف المزيد
نظام المواد الخام PU
بوليول + أيزوسيانات + عامل نفخ، k-factor حتى 0.018
اعرف المزيد
ملحقات معدنية
مفصلات، حشوات، مقابض، LED، مبخرات ومكثفات
اعرف المزيدFrom inquiry to first commercial unit — the 6-step delivery flow
From inquiry to first cold-room panel rolling off your line. ~10 months for a discontinuous press line; ~12 months for continuous press.
- 1
Inquiry & Volume Scoping
Week 1–2Share target annual m² output, panel thickness range (50–200 mm), steel skin spec (PPGI / PPGL / stainless), target end-markets (industrial cold storage, refrigerated truck body, food processing, modular cold rooms). 1-page proposal in 5 days.
- 2
Detailed Proposal & Press Configuration
Week 2–4Engineering picks discontinuous vs continuous press based on volume target. Sized for your steel skin spec + foam thickness range. PU formulation specced (cyclopentane standard, HFO for ULT). Quote with 22-line BOM in 14 days.
- 3
Contract & Panel Design Freeze
Week 4–830% down. Panel CAD + steel skin profile + joint geometry frozen. Fire-reaction class certification target signed off.
- 4
Mould + Continuous Press Build
Month 3–8Press: 90–120 days. PU machine: 60 days. Foaming + steel coil handling stations: 60 days. Pre-shipment FAT — we run your actual panel spec on our test line and ship the production validation report.
- 5
Sea Freight & On-Site Installation
Month 8–116–10 × 40' containers from Shanghai/Ningbo. On-site installation 5–7 weeks (longest among cabinet lines). Building floor reinforcement + 6m+ ceiling height + continuous floor 30m+ required.
- 6
Commissioning, EN 14509 Testing & Acceptance
Month 11–12First 2000 m² panel produced and tested through EN 14509 bond strength + fire reaction + thermal conductivity protocols. Operator training. Acceptance signed when 1000 consecutive m² pass spec. 60% payment due here, 10% after 6-month production volume verification.
لماذا هذا الخط يعمل — مدعوم بالمواصفات الفعلية
خطوط إنتاج ألواح متواصلة مُصمَّمة لمقاولي إنشاء غرف التخزين البارد — أدوات مختلفة، نطاق مختلف عن OEM الخزائن.
خط ألواح ساندوتش متواصل بطاقة 10–40 لوحاً في الساعة
خط رغوة متواصل لألواح ساندوتش (سُمك 50–200 mm) يعمل بطاقة 10–40 لوحاً في الساعة حسب السُمك ومادة الكسوة. جلود فولاذية (PPGI / مقاوم للصدأ) ملصقة بنواة رغوة PU في عملية متواصلة واحدة — لا رغوة دفعية، لا قيود الخزانة.
سُمك اللوح من 50 mm لغرفة التبريد إلى 200 mm للمجمّد الصناعي على خط واحد
عمود خط واحد يغطي ألواح 50 mm (غرف تبريد 0 إلى 5°C)، و100 mm (درجات حرارة متوسطة -5 إلى -18°C)، و150–200 mm (تجميد عميق -25 إلى -40°C صناعي). يتغير السُمك بضبط فجوة المكبس المزدوج لا بتغيير الخط.
ملء رغوة رذاذية في الموقع للأشكال الهندسية غير المنتظمة
للأشكال غير القياسية لغرف التبريد (مبانٍ مُرمَّمة، أسقف غير منتظمة)، نوفر أنظمة رغوة رذاذية للملء العازل في الموقع. إنتاج 8–25 kg/min رغوة PU، وكثافة قابلة للضبط 32–48 kg/m³ حسب التطبيق.
أدوات نظام قفل / توصيل الألواح مُدرَجة
أنظمة توصيل cam-lock ولسان وحز مُجهَّزة مسبقاً — مطلوبة لضمان استمرارية العزل عند وصلات الألواح في غرف التبريد المجمَّعة. موحَّدة لتناسب مواصفات كبار مُركِّبي الألواح في الاتحاد الأوروبي والشرق الأوسط.
Customization Options
Industrial cold-room contractors spec panels to EN 14509 + fire reaction class. 4 axes per project tender.
Panel thickness
50 / 80 / 100 / 120 / 150 / 200 mm. Continuous press line covers 50–200 mm; discontinuous covers 50–250 mm.
Steel skin
PPGI / PPGL / stainless. 0.4 / 0.5 / 0.6 / 0.8 mm gauge. Chemical pre-treatment calibrated for PU bond strength ≥0.10 MPa.
Fire reaction class
Standard E (PU + FR additive) / B-s2,d0 (EU cold-room tender). Test certificate pack with line.
Line throughput
Discontinuous press USD 800K–1.5M (240K–800K m²/year) / continuous press USD 2.5M–5M (800K–2M m²/year).
Foam Quality Visualization — what closed-cell structure actually looks like
The single biggest predictor of refrigerator cabinet thermal performance is the foam cell structure. Closed-cell ratio, average cell diameter and density uniformity decide whether your cabinet holds -18°C in 35°C ambient — or fails the EU Ecodesign type-test. Here's what fine and coarse PU foam look like under a scanning electron microscope.
Industry-typical low-grade PU
- Avg cell diameter
- ~400 µm
- Closed-cell ratio
- 85–90%
- k-factor (W/m·K)
- 0.025–0.028
- Density uniformity
- ±5 kg/m³
Visible voids, broken cell walls, large irregular cells. Refrigerator cabinet pull-down test fails at 32°C+ ambient. EU Ecodesign type-test fails first submission.
Our cyclopentane PU system
- Avg cell diameter
- ~100 µm
- Closed-cell ratio
- ≥95%
- k-factor (W/m·K)
- 0.019–0.021
- Density uniformity
- ±0.5 kg/m³
Uniform fine cells, intact walls, high closed-cell ratio. Refrigerator cabinet pull-down test passes at 43°C tropical ambient. EU Ecodesign / WHO PQS / ENERGY STAR first-submission pass rate 90%+.
How we measure it: Every shipment of PU raw materials runs through pilot foaming + SEM cell-structure check at our lab. Every commissioned line gets a foam parameter card with these targets — if your operators tune to the card, the foam structure stays in this range. Sample reports available on request.
Illustration · Conceptual SEM micrographs representing typical industry coarse foam (left) vs UREXCEED cyclopentane PU foam quality target (right). Real SEM reports from your specific line available after commissioning.
Application Scenarios
Cold-room panels serve industrial, logistics, and pharmaceutical buyers.
- Food processing cold storage (meat / poultry / dairy)
- Frozen seafood warehouse (-25 to -40°C)
- Pharmaceutical cold storage (vaccine warehouse, +2 to +8°C)
- Supermarket central kitchen cold room
- Refrigerated truck body sidewall & roof panels
- Modular cold room (prefab, ship-and-assemble)
الأسئلة التي يطرحها أصحاب المصانع
ما الاستثمار النموذجي لخط ألواح غرف التبريد المتواصل؟
هل يمكنكم توريد أنظمة رغوة رذاذية للتطبيق في الموقع بصورة منفصلة؟
هل تورّدون محطة التبريد لغرفة التخزين البارد نفسها؟
ما تكلفة الإنتاج النموذجية للوح لكل متر مربع من خط يُشترى منكم؟
كم يستغرق تشغيل خط الألواح المتواصل؟
Optional Add-ons
Extend Your Production Line
Five proven add-ons our 1,800+ customers ask for after their first refrigerator factory line goes live. Discuss with our engineers which fit your spec.
Raw Material Supply
PU MDI / Polyol systems sourced direct from BASF / Covestro / Wanhua, calibrated to your foam specs and climate. Container-load discounts.
Spare Parts Package
2-year wear-parts package — seals, valves, heating elements, sensors. Pre-shipped with the line, no air-freight emergencies.
Robot Integration
ABB / KUKA 6-axis robot for de-molding, demoulding, palletizing or insertion of internal components — boost throughput +30%.
Automatic Demoulding System
Vacuum-assisted demoulding for thin-wall liners and complex geometries — eliminates worker injury, halves cycle time.
Quality Inspection System
Inline foam density, void, k-factor + dimensional QC stations. Auto-reject + traceability log — meets ISO 9001 + EU appliance regulation.
ROI · Cost Analysis
Investment Range & Payback
Indicative range based on 1,800+ delivered lines. Final pricing depends on automation level + add-ons + local labor cost. Request a quote for your spec.
Configuration note: Discontinuous press: USD 800K–1.5M, payback ~24 months. Continuous press: USD 2.5M–5M, payback ~16 months at 800K+ m²/year. Includes EN 14509 + fire-reaction class B testing rigs.
Service & Support
الضمان والخدمة
التدخل في الموقع متاح في كل منطقة سلّمنا فيها مشاريع.
On-Site Installation
Our engineers fly to your factory to supervise installation, layout verification, and first-run production.
Commissioning + Tuning
Trial run + parameter tuning to your local raw material, climate, and target product spec — until throughput meets contract.
Operator Training
5-10 day on-site training for production team, QC, and maintenance — bilingual manuals + video tutorials provided.
3-Year Warranty + Spares
Core equipment 3-year warranty, electrical 2-year. Spare parts in stock with global express shipment 24h dispatch.
Cross-Sell · One-Partner Synergy
Pair this line with the rest of the factory
The product groups our refrigerator-factory customers buy alongside this line — for full-line synergy and one-partner accountability.
High-Pressure PU Foaming Machines
Cyclopentane / 2-component / 3-component models. Cyclopentane is the refrigerator industry standard.
Learn moreRefrigerator-grade Moulds
Vacuum-forming moulds for inner liners + foaming moulds for cabinet/door. 30-year mould-cluster network.
Learn morePU Raw Materials System
BASF / Covestro / Wanhua MDI + Polyol — calibrated to your climate, foam density, and cycle time.
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Turnkey Production Lines for Refrigeration Equipment Factories
"From a Single Pump to a Turnkey Line — One Partner Through Every Tier."