Bulk Dry Ice Ice Pack: كيفية الحجم, سفينة, and Save
If you buy or ship a bulk dry ice ice pack, your biggest risks are temperature excursions, hazmat mistakes, and hidden cost. Dry ice sits at -78.5 درجة مئوية and sublimates to CO₂ gas, so sizing and labeling drive outcomes. Most validated shippers plan 5-10 رطل لكل 24 ساعات وأضف المخزن المؤقت; do the same and you’ll avoid claims and re-ships.
-
Right-sizing: A field-tested way to estimate bulk dry ice ice pack mass with a realistic buffer.
-
Compliance clarity: The exact UN1845 wording and box markings you must show for air.
-
Better packouts: Layouts that slow sublimation and stretch hold time on your lane.
-
Smart alternatives: When gel or بي سي إم beats a bulk dry ice ice pack for 2–8°C control.
How much bulk dry ice ice pack do you need for your lane?
إجابة قصيرة: Sublimation rate × time + 20-25 ٪ العازلة. Typical planning ranges are 5-10 رطل لكل 24 ح اعتمادا على العزل والحرارة المحيطة. Use the higher end for summer lanes or multi-stop air routes.
Engineering method: Estimate heat load and divide by dry-ice sublimation energy (~571 kJ/kg), ثم أضف 10–15% هامِش. This method aligns sizing to your actual box and duration.
Dry ice sizing calculator (quick formula)
| Insulation class (الشاحن) | Base rate (رطل / 24 ح) | 24 h need (رطل) | 48 h need (رطل) | 72 h need (رطل) | ماذا يعني |
|---|---|---|---|---|---|
| EPS (basic) | 10 | 10–12 | 20–25 | 30–38 | Cheap, heavy ice usage |
| Rigid PU | 7 | 7–9 | 14–18 | 21–27 | Balanced choice |
| VIP + بو | 5 | 5–6 | 10–13 | 15–19 | Higher box cost, less ice |
Practical packout tips that extend hold time
-
Pre-condition payload and liner.
-
Use thin slabs, not one block.
-
Control voids.
-
Always add a buffer.
Real-world case: A biotech sender on a 72-hour route switched from EPS to VIP and cut the bulk dry ice ice pack from 36 LB ل 18 رطل with zero excursions over 12 أسابيع.
What must go on a bulk dry ice ice pack label (UN1845)?
للهواء: مطبعة "الجليد الجاف" أو "ثاني أكسيد الكربون, صلب,"UN1845, ال net dry-ice weight in kg, عناوين الشاحن/المرسل إليه, وتطبيق فصل 9 تسمية الخطر. Also put packages × kg on your air waybill.
For road or ocean: Paperwork is simpler, but ventilation, clear labels, and securement still matter.
Label stub you can copy
When should you choose PCM or gel over a bulk dry ice ice pack?
Use a bulk dry ice ice pack for deep-frozen lanes (–40°C to –78.5°C). Use PCM or gel for tight 2-8 درجة مئوية control, lower weight, and simpler hazmat handling.
Side-by-side: which cold source fits your job?
| استخدام الحالة | الجليد الجاف (UN1845) | حزمة هلام | حزمة PCM | Best pick |
|---|---|---|---|---|
| بوظة, اللحوم المجمدة | ★★★★★ | ★★ | ★★★ | الجليد الجاف |
| 2–8°C vaccines/foods | ★ | ★★★ | ★★★★★ | بي سي إم |
| Long air routes | ★★★★ | ★★ | ★★★★ | Dry ice/PCM |
| Hazmat simplicity | ★ | ★★★★ | ★★★★ | هلام/PCM |
| Weight constraints | ★★ | ★★★ | ★★★★ | بي سي إم |
How do you build a bulk dry ice ice pack system that lasts longer?
-
Insulation stack: PU walls (≥30 mm) مع VIP lid/base if possible.
-
Tight lid geometry: Deep interlock lowers convection leaks.
-
Void control: Dunnage that doesn’t collapse at cold.
-
Thermal bridges: Isolate metal parts and straps.
-
Layering: Place dry ice above و around the load with separators.
-
تصديق: Run 23/30/40°C ambient profiles.
Layout options and expected duration
| Layout | Sublimation per 24 ح | مدة | أفضل استخدام |
|---|---|---|---|
| Top placement | 8–12% | 24-36 ساعة | Short shipments |
| Surround layout | 6–9% | 36-60 ح | Long-distance frozen goods |
| هجين (قمة + الجانبين) | 5–8% | 48-72 ح | High-value critical goods |
نصائح عملية
-
Pack above and around payloads.
-
Switch EPS→PU→VIP as your lane exceeds 48 ساعات.
-
Instrument the weak spot مع مسجل.
مثال الحقل: Hybrid layout with PU walls extended route from 36 ل 60 hours without adding dry ice.
How do you stay safe when handling a bulk dry ice ice pack?
-
PPE: Insulated gloves and eye protection.
-
تهوية: Avoid airtight rooms or containers.
-
تصرف: Let ice sublimate in open air.
-
تمرين: “Gloves on, lid open, head out.”
KPIs and troubleshooting
-
Track: excursions per 100 الشحنات, المطالبات, ice mass per lane, DIM vs. chargeable weight, إعادة استخدام دورات.
-
Fix fast:
-
Under-sized pack → increase buffer.
-
Void issues → reduce air gaps.
-
Label holds → reprint clear UN1845 labels.
-
Hot hubs → add VIP lids or reschedule flights.
-
2025 cold-chain and bulk dry ice ice pack trends
ما الجديد: عزل صديق للبيئة, مراقبة إنترنت الأشياء, and reusable boxes dominate 2025. Many programs report >25% footprint cuts with recyclable systems and reusable shippers.
Latest developments
-
Reusable fleets scale up.
-
PCM options expand.
-
Operator addenda stricter.
Market snapshot: Cold-chain packaging grows mid-single digits; PCM up double digits thanks to validation and lower per-use cost.
التعليمات
How long does a bulk dry ice ice pack last?
عادة 24-72 ساعة depending on insulation and load.
What is the maximum dry ice allowed per air package?
حتى ~200 kg, check your carrier.
جاف آمن لشحنات الطعام?
نعم, if isolated and vented.
Can I reuse bulk dry ice ice pack pouches?
Yes—track reuse cycles and retire damage.
Summary and recommendations
Size by rate × time + المخزن المؤقت, ملصق UN1845 perfectly, and switch chilled lanes to بي سي إم when possible. Improve insulation and track weak points for best results.
الخطوات التالية (CTA)
-
Run the sizing calculator for your lanes.
-
Standardize labels and AWB wording.
-
طيار VIP + بي سي إم for 2–8°C lanes.
-
Book a 30-minute engineering review.
Structured data (JSON-LD)
(unchanged from prior version; retained for SEO compliance, no external anchors remain)
حول Tempk
We design and supply عبوة تسيطر عليها درجة الحرارة for food and life sciences—from bulk dry ice ice pack systems to gel and PCM solutions. Our tools help you size faster, model costs, and validate lanes with confidence. We combine packaging engineering with practical training so your teams keep products safe, متوافق, وفعالة.
