Pengtour develops passive EVA insulin cooler cases for brands, distributors, and diabetes-supply companies. Each project is built around the actual pen or vial load, the permitted storage limit on the medicine label, the ambient temperature, the required carrying time, and the selected gel-pack arrangement.
Insulin is a biological product. Temperature deviation — even brief exposure above 25°C — accelerates degradation and reduces potency. The challenge: a cooler box with ice packs tells you nothing about the actual interior temperature. Your patient (or your brand's end user) is flying blind. A simple temperature display helps the user check the air temperature inside the case at that moment. During sample testing, a separate data logger records the full temperature curve from the left, center, and right air points. The display supports spot checks; the data logger supports development testing.
| Feature | Standard Cooler Case | Pengtour Insulin Case |
|---|---|---|
| Interior temperature visibility | None | Real-time electronic display |
| Temperature range maintained | Unknown | 2–8°C (tested) |
| Duration at 25°C ambient | Varies, unverified | 8–12 hours (in-house validated) |
| Duration at 35°C ambient | Varies, unverified | 4–6 hours (in-house validated) |
| Ice pack system | Basic | Reusable, custom-fit to cavity |
| Compartment layout | Generic | OEM custom per device SKU |
| CE registration support | Varies | CE documentation support available |
Every configuration below is available as an OEM/ODM starting point. Compartment layout, ice pack size, thermometer display style, logo, color, and medical packaging are all customizable.
two pens, essential accessories, fitted holder, gel packs below a separate foil-lined layer.
four pens, two fitted lower gel-pack pockets, optional simple display, and three-point sample testing.
buyer-defined pen, vial, and accessory layout using fitted EVA or adjustable dividers.
developed from the buyer's complete SKU list, branding, packaging, and agreed test plan.
We engineer custom solutions from your product dimensions and clinical requirements.
WHO insulin storage guidelines specify that unopened insulin should be kept at 2–8°C. Once in use, pens may be stored at 15–25°C for up to 4 weeks — but the safest approach for travel and transport is to maintain cold chain throughout. Every Pengtour insulin case is engineered around this requirement. Reference: WHO Insulin Storage Guidance — iris.who.int
PENGTOUR IN-HOUSE METHOD
The outer EVA shell is cold-pressed to a uniform wall thickness of 18–22mm with a closed-cell foam density of 38–42 kg/m³. Closed-cell structure prevents moisture ingress and convective heat transfer. Inner cavity surface is lined with 3mm microfiber for secondary insulation and product protection.
PENGTOUR IN-HOUSE METHOD
Each case ships with a custom-cavity-fit reusable gel pack. The gel formulation maintains phase-change temperature at 0–4°C, releasing cold energy gradually as ambient heat penetrates the shell. Gel pack is non-toxic, TSA-compliant (frozen solid, not liquid), and rated for 500+ freeze-thaw cycles.
PENGTOUR IN-HOUSE METHOD
The integrated NTC thermistor probe measures interior case temperature with ±0.5°C accuracy across the 0–40°C operating range. Display: LCD panel (lid-integrated or external side panel, OEM selectable). Low-battery alert function. Optional: dual-probe model with USB data logging for clinical/logistics applications.
PENGTOUR IN-HOUSE METHOD — Controlled internal testing, not a published standard
The above data represents results from Pengtour's in-house thermal performance tests under controlled laboratory conditions. Actual duration may vary. Third-party laboratory validation (SGS / Intertek) is available on request.
Reference test configuration: four pen positions; two 75 g flexible gel packs; packs frozen for four hours; packs below the foil-lined separation layer; three internal air points; case closed during the test.
These results apply to this sample setup. A changed case, load, gel pack, liner, opening routine, or ambient condition requires another check.
| Component | Specification |
|---|---|
| Shell Shape & Size | Clamshell, top-zip, or dual-compartment shell engineered to your device SKU. |
| Interior Layout | Pen slots, vial bays, BGM cavity, lancet port, test strip pod, and infusion set tray are configurable. |
| Thermometer Style | Lid-integrated LCD, side-panel LCD, or external clip-on probe; single or dual probe. |
| Ice pack system | Single gel pack / dual gel pack / slim-profile side-panel pack; custom cavity fit |
| Exterior Finish | Matte EVA / glossy EVA / fabric-wrap (neoprene / microfiber) / medical-grade polymer coating |
| Logo & Branding | Debossed / embossed on shell, woven label, printed insert card, medical device labelling panel |
| Medical Packaging | IFU insert, CE marking label, UDI barcode panel, retail blister, or folding carton. |
| Regulatory Support | CE registration documentation support (technical file, test data, DoC for buyer's CE application); ISO 13485-compatible QMS records; REACH/RoHS material declaration |
The required documents depend on the final case, gel packs, temperature display, destination market, packaging, and claims. Confirm the following during quotation:
After the complete brief is received.
Structure, materials, sample scope, MOQ, tooling, and timing are confirmed in the quotation.
Check loaded fit, removal, zipper clearance, gel-pack placement, workmanship, and packaging direction.
Follow the agreed ambient condition, load, preparation, probe positions, duration, and acceptance rule.
Follow the approved sample, specification, purchase order, and packaging requirements.
| Item | Content |
|---|---|
| Incoming materials | Material reference, color, appearance, odor, zipper, gel-pack specification, display component, and agreed supplier documents. |
| In-process structure | Shell, lamination, lining, holder, gel-pack pocket, separation layer, stitching, and zipper clearance. |
| Assembly | Pen fit, accessory fit, pack placement, display and logo positions, opening and carrying function. |
| Project-specific sample test | Agreed ambient temperature, load, pack preparation, probe positions, duration, and result. |
| Pre-shipment inspection | Appearance, dimensions, function, accessories, packaging, labels, carton quantity, and shipment marks. |
Have a different insulin cooler case question? Send your load list and target conditions to our project team.
Send the pen or vial dimensions, quantity, use stage, current label condition, target ambient temperature, maximum permitted temperature, required carrying time, gel-pack preference, branding, packaging, and estimated order quantity.
