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Airtight Field Case

Manufacturer

MIL-SPEC protection for mission-critical equipment · Factory direct · Wholesale / OEM / Global supply

Airtight Field Case is an engineered protective case in the military-grade case family: built by source factory kexinMaterials with IP67 sealing, impact-resistant PP copolymer or rotomolded PE shells and CNC-cut custom foam; wholesale, OEM and export supported.

Key definition

A military-grade protective case is a MIL-SPEC transit container built from modified engineering plastics with one-piece molded construction, IP67 sealing, a -40°C to +80°C service range and impact-resistant structure, verifiable against MIL-STD test profiles.

Airtight Field Case · Military & Tactical Protective Cases — 客信新材料源头工厂

Airtight Field Case: Product & Manufacturer Overview

The Airtight Field Case can be tailored to your brand and project: case color, silk-print or laser-engraved logo, foam layout and handle/wheel options are all adjustable. kexinMaterials, as the source factory, runs the whole journey from sample approval to mass production, including neutral shipping and OEM private label.

When sourcing a Airtight Field Case, professional buyers evaluate three things: impact structure, sealing class and custom foam capability. kexinMaterials answers all three with reinforced one-piece shells, IP67 sealing with automatic pressure equalization valves, and CNC-cut EVA inserts machined to your equipment's exact geometry.

Key facts: The Airtight Field Case is manufactured factory-direct by KeXin New Materials (Guangdong) Co., Ltd. (brand: kexinMaterials): IP67 options, MOQ 50 pcs on stock models, samples in 7–15 days, production in 15–30 days, exporting to 8 major markets.

Key Specifications

Shell materialModified PP / ABS / Rotomolded PE / Glass-fiber reinforced
Protection ratingIP67 (IP68 solutions available)
Temperature range-40°C to +80°C
Molding processInjection molding / Rotational molding
InteriorCustom EVA, layered foam, divider systems
TestingDrop, stacking, immersion, salt fog, thermal cycling
CustomizationSize, color (OD green/black/tan/camo), logo, locks
Ingress ratingIP67 (1 m / 30 min immersion, 100% tested)
Outdoor ratingUV stabilised, 500 h QUV validated

Product Feature Breakdown

IP67 waterproofOutdoor / field

IP67 on Airtight Field Case requires three things at once: a continuous O-ring gasket (Shore A 50–60 silicone or EPDM), a pressure-equalisation valve, and even clamping force from the latches. kexinMaterials immersion-tests every unit at 1 m for 30 minutes and retains the record.

Field temperature swings create pressure differentials in sealed cases: Airtight Field Case heats up in daytime sun and cools sharply at night, drawing moist air inward over repeated cycles. An automatic purge valve is mandatory rather than optional on outdoor sealed cases; kexinMaterials fits one across the sealed range.

How kexinMaterials Compares

DimensionkexinMaterialsGeneric market cases
Protection ratingIP67 (IP68 available, with third-party immersion report)Mostly IP54–IP65, rarely independently tested
Shell materialModified PP / ABS / rotomolded PE, chosen by loadGeneric PP or recycled material, inconsistent
Impact structureOne-piece ribbed shell, verified to MIL-STD-810H 516.8Thin-wall molding, no drop verification
Custom foamCNC-cut EVA/foam to your equipment 3D dataUniversal dividers only, no precision pockets
MOQFrom 50 pcs on existing molds, negotiable for toolingUsually 500–1,000 pcs
Certification & deliveryMaterial/drop/immersion reports, factory audits welcomeReports missing, lead time unstable

Standards & Industry Data

Military Vibration (MIL-STD-810H, Method 514.8)

Random-vibration testing spans 20–2,000 Hz to replicate truck, aircraft and battlefield vibration, run for hours per axis; transport spectra cover 2–500 Hz. Passing means the shell-plus-foam system protects precision payloads through long multimodal transit.

Shell Materials Compared (PP / ABS / PE)

Industry data puts PP (polypropylene) at ~55% of plastic protective-case share — strong chemical resistance, low-temperature toughness and cost efficiency; ABS holds ~30% with harder, glossier surfaces; large thick-wall cases favor rotomolded PE. Plastic/polymer cases together account for 63.7% of the industrial protective case market (2025).

Military Drop Test (MIL-STD-810H, Method 516.8 Proc. IV)

MIL-STD-810H (8th revision, 2019; 29 test methods) requires transit-drop samples to survive 26 drops from up to 5 ft (1.5 m) onto steel-backed concrete in varied orientations. Versus 810G, the H revision raised drop height from 4 ft to 5 ft and switched to a harder steel-backed surface.

Typical Applications

  • Defense equipment transport and field deployment
  • Law-enforcement gear storage and patrol carry
  • Regulated transport of blasting materials
  • Emergency-response pre-positioned supplies
  • Field testing for defense research institutes
  • Security equipment inspection rounds

Product Overview

The kexinMaterials Airtight Field Case is one-piece molded from engineering plastics, balancing impact strength, sealing and long-term durability — available from stock or fully customized. Key specs below.

On process: the Airtight Field Case can be injection, rotational or blow molded. Injection gives precise sealing and repeatability; rotomolding yields large seamless shells with thick-wall toughness; blow molding suits light, economical builds. kexinMaterials runs all three lines and matches the process to your protection grade and budget.

For interior protection, the Airtight Field Case ships with or accepts CNC-cut EVA/PE foam, routed to your equipment's 3D data so nothing shifts in transit; precision instruments can add ESD-safe or cushioned layered structures.

On quality, the Airtight Field Case passes batch drop, stack and immersion checks; key models can be tested to MIL-STD-810H for drop and vibration, with material and third-party test reports supplied for export and industry acceptance.

Manufacturing Process

Small and mid-size carry cases are produced by high-pressure injection molding for dimensional precision, while large transit and airdrop cases are rotationally molded for seamless walls and maximum toughness. Every production batch passes drop and seal spot checks before shipment.

Military & Tactical Protective Cases · Airtight Field Case — 客信新材料 kexinMaterials
Military & Tactical Protective Cases · Airtight Field Case

Field Case Studies

Provincial SWAT unit

Customized 1,200 camo tactical cases for carry and patrol gear, CNC-cut to sidearm and body-cam shapes with seal holes and shoulder straps; fielded in 2024 with zero damage reports.

SE-Asia security distributor

OEM-branded 5,000 OD-green tactical cases with CE/REACH docs, delivered in three batches, >40% repeat rate.

About kexinMaterials

KeXin New Materials (Guangdong) Co., Ltd. (brand: kexinMaterials) is a source factory for engineered plastic cases based in Guangdong, China, operating injection, rotational and blow molding lines with an in-house tool shop. Nine product series serve buyers worldwide — from military and drone cases to medical, photography and business lines.

Why kexinMaterials: factory-direct pricing with no middle-man margin; three molding processes under one roof; in-house tooling for controlled lead times; batch drop and seal testing; factory audits, samples-first and third-party QC all supported.

Frequently Asked Questions

What makes a military-grade case different from a normal plastic box?

Materials and structure. Military-grade cases use modified engineering plastics, one-piece molded shells, IP67 sealing and a -40°C to +80°C service range, and can be verified against MIL-STD test profiles. Ordinary boxes offer none of these.

How much weight can a military case carry?

It depends on size and process: injection-molded carry cases are rated for roughly 25–40 kg of payload, while large rotomolded transit cases handle 80–150 kg and support stacking. Send us the payload weight and center of gravity and we will confirm wall thickness, ribbing and handle or wheel configuration.

Do I need a pressure equalization valve?

The automatic valve balances internal and external pressure during air freight or altitude changes, so the lid opens easily and the gasket is not deformed. We fit valves by default on any case intended for air transport or cross-altitude routes; short-haul ground-only orders can omit it to save cost.

How is drop testing performed and can you supply a report?

Cases are loaded to rated weight and dropped from 1.2 m onto six faces and eight corners, then inspected for shell cracking, latch failure and loss of seal. We share in-house batch inspection records and can arrange third-party laboratory reports for tenders and acceptance.

Do you offer OEM / private label?

Yes. Logo printing, laser engraving, molded nameplates, custom colors and custom packaging are all standard OEM services.

What is the typical lead time?

Existing-mold products in normal volumes (up to 500 pcs) ship in about 15–20 days. Custom-tooled projects need roughly 25–35 days for the mold, then production scheduling. Rush orders can be prioritized subject to the shop schedule at order confirmation.

Key Terms Explained

Pressure equalization valve
A one-way breather fitted to the case wall that lets air pass slowly while blocking water and dust. It balances internal and external pressure during air freight or altitude change, preventing a vacuum-locked lid or a deformed gasket.
ESD / antistatic
Conductive masterbatch or antistatic lining brings surface resistance into the 10^6–10^9 Ω range so static cannot build up and damage electronics. It is a routine requirement in electronics manufacturing, semiconductor and precision instrument handling.
MIL-STD-810
A US Department of Defense standard for environmental engineering considerations and laboratory tests, defining procedures for drop, vibration, thermal shock, salt fog and humidity. Protective cases are commonly validated against Method 516 (shock) and Method 514 (vibration).

Common Misconceptions

Is IP68 simply a bigger number than IP67?

They are different tests. IP67 is 1 m immersion for 30 minutes. IP68 is defined by the manufacturer at a greater depth or duration and must state the conditions (e.g. IP68 2m/2h). An IP68 claim with no stated depth or time may protect less than a properly executed IP67. Ask for the test report, not just the label.

Is waterproofing enough for an outdoor case?

Waterproofing only addresses liquid water. The three real outdoor damage mechanisms are UV ageing, the breathing effect from temperature swings (drawing in moisture that condenses inside), and sand abrasion of moving parts. Confirm the UV rating, the presence of a purge valve, and dust-shielded latch and hinge design.

Need wholesale or custom cases?

kexinMaterials quotes factory-direct — confirm samples before mass production.

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