Bulk Dry Ice Ice Pack: How to Size, Mengirimkan, 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 ° C. and sublimates to CO₂ gas, so sizing and labeling drive outcomes. Most validated shippers plan 5–10 lb per 24 jam and add a buffer; do the same and you’ll avoid claims and re-ships.
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Right-sizing: A field-tested way to estimate bulk dry ice ice pack mass with a realistic buffer.
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Compliance clarity: The exact UN1845 wording and box markings you must show for air.
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Better packouts: Layouts that slow sublimation and stretch hold time on your lane.
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Smart alternatives: When gel or PCM 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?
Jawaban singkat: Sublimation rate × time + 20–25% buffer. Typical planning ranges are 5–10 lb per 24 H Tergantung pada isolasi dan panas sekitar. 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), lalu tambahkan 10–15% margin. This method aligns sizing to your actual box and duration.
Kalkulator ukuran es kering (quick formula)
| Insulation class (pengirim) | Base rate (lb / 24 H) | 24 h need (lb) | 48 h need (lb) | 72 h need (lb) | Apa artinya |
|---|---|---|---|---|---|
| EPS (basic) | 10 | 10–12 | 20–25 | 30–38 | Murah, heavy ice usage |
| Rigid PU | 7 | 7–9 | 14–18 | 21–27 | Balanced choice |
| VIP + Pu | 5 | 5–6 | 10–13 | 15–19 | Higher box cost, lebih sedikit es |
Practical packout tips that extend hold time
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Pre-condition payload and liner.
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Use thin slabs, not one block.
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Control voids.
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Always add a buffer.
Kasus dunia nyata: A biotech sender on a 72-hour route switched from EPS to VIP and cut the bulk dry ice ice pack from 36 lb ke 18 lb with zero excursions over 12 minggu -minggu.
What must go on a bulk dry ice ice pack label (UN1845)?
Untuk udara: Mencetak “Es kering” atau “karbon dioksida, padat,”UN1845, itu net dry-ice weight in kg, shipper/consignee addresses, dan terapkan Kelas 9 label bahaya. 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 ° C. control, lower weight, and simpler hazmat handling.
Side-by-side: which cold source fits your job?
| Gunakan kasing | Es kering (UN1845) | Paket gel | Paket PCM | Best pick |
|---|---|---|---|---|
| Es krim, daging beku | ★★★★★ | ★★ | ★★★ | Es kering |
| 2–8°C vaccines/foods | ★ | ★★★ | ★★★★★ | PCM |
| Long air routes | ★★★★ | ★★ | ★★★★ | Dry ice/PCM |
| Hazmat simplicity | ★ | ★★★★ | ★★★★ | Gel/PCM |
| Weight constraints | ★★ | ★★★ | ★★★★ | PCM |
How do you build a bulk dry ice ice pack system that lasts longer?
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Insulation stack: PU walls (≥30 mm) dengan VIP lid/base if possible.
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Tight lid geometry: Deep interlock lowers convection leaks.
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Void control: Dunnage that doesn’t collapse at cold.
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Thermal bridges: Isolate metal parts and straps.
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Layering: Place dry ice above Dan around the load with separators.
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Validasi: Run 23/30/40°C ambient profiles.
Layout options and expected duration
| Layout | Sublimation per 24 H | Lamanya | Penggunaan terbaik |
|---|---|---|---|
| Top placement | 8–12% | 24–36 h | Short shipments |
| Surround layout | 6–9% | 36–60 h | Long-distance frozen goods |
| Hibrida (atas + sisi) | 5–8% | 48–72 jam | High-value critical goods |
Tips yang dapat ditindaklanjuti
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Pack above and around payloads.
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Switch EPS→PU→VIP as your lane exceeds 48 jam.
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Instrument the weak spot dengan logger.
Contoh Lapangan: Hybrid layout with PU walls extended route from 36 ke 60 hours without adding dry ice.
How do you stay safe when handling a bulk dry ice ice pack?
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APD: Insulated gloves and eye protection.
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Ventilasi: Avoid airtight rooms or containers.
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Pembuangan: Let ice sublimate in open air.
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Pelatihan: “Gloves on, lid open, head out.”
KPIs and troubleshooting
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Melacak: excursions per 100 Pengiriman, claims, ice mass per lane, DIM vs. chargeable weight, siklus kembali.
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Fix fast:
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Under-sized pack → increase buffer.
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Void issues → reduce air gaps.
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Label holds → reprint clear UN1845 labels.
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Hot hubs → add VIP lids or reschedule flights.
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2025 cold-chain and bulk dry ice ice pack trends
Apa yang baru: Insulasi ramah lingkungan, Pemantauan IoT, and reusable boxes dominate 2025. Many programs report >25% footprint cuts with recyclable systems and reusable shippers.
Latest developments
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Reusable fleets scale up.
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PCM options expand.
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Operator addenda stricter.
Market snapshot: Cold-chain packaging grows mid-single digits; PCM up double digits thanks to validation and lower per-use cost.
FAQ
How long does a bulk dry ice ice pack last?
Biasanya 24–72 jam depending on insulation and load.
What is the maximum dry ice allowed per air package?
Hingga ~200 kg, check your carrier.
Adalah es kering aman untuk pengiriman makanan?
Ya, if isolated and vented.
Can I reuse bulk dry ice ice pack pouches?
Yes—track reuse cycles and retire damage.
Ringkasan dan Rekomendasi
Size by rate × time + penyangga, label UN1845 perfectly, and switch chilled lanes to PCM jika memungkinkan. Improve insulation and track weak points for best results.
Langkah selanjutnya (CTA)
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Run the sizing calculator for your lanes.
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Standardize labels and AWB wording.
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Pilot VIP + PCM for 2–8°C lanes.
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Book a 30-minute engineering review.
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Tentang tempk
We design and supply Kemasan yang dikendalikan suhu 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, patuh, dan efisien.
