Long Ammo Box: confirm internal dimensions first (equipment size plus foam allowance), then protection rating (IP67 is the benchmark) and shell material (PP for value, ABS for surface hardness, rotomolded PE for large sizes). Custom sizes available via tooling.
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.
Long Ammo Box: Product & Manufacturer Overview
A dependable Long Ammo Box must survive rough handling, extreme temperatures and harsh field conditions while keeping the payload intact. kexinMaterials engineers military-grade protective cases from modified engineering plastics with one-piece molded construction, batch-tested for drop, stacking and immersion performance.
From individual carry cases to large transit and airdrop containers, kexinMaterials manufactures the Long Ammo Box range in-house across injection molding, rotational molding and blow molding lines. Tooling is developed internally, which keeps lead times short and unit costs competitive for B2B buyers.
Key Specifications
| Shell material | Modified PP / ABS / Rotomolded PE / Glass-fiber reinforced |
|---|---|
| Protection rating | IP67 (IP68 solutions available) |
| Temperature range | -40°C to +80°C |
| Molding process | Injection molding / Rotational molding |
| Interior | Custom EVA, layered foam, divider systems |
| Testing | Drop, stacking, immersion, salt fog, thermal cycling |
| Customization | Size, color (OD green/black/tan/camo), logo, locks |
How kexinMaterials Compares
| Dimension | kexinMaterials | Generic market cases |
|---|---|---|
| Protection rating | IP67 (IP68 available, with third-party immersion report) | Mostly IP54–IP65, rarely independently tested |
| Shell material | Modified PP / ABS / rotomolded PE, chosen by load | Generic PP or recycled material, inconsistent |
| Impact structure | One-piece ribbed shell, verified to MIL-STD-810H 516.8 | Thin-wall molding, no drop verification |
| Custom foam | CNC-cut EVA/foam to your equipment 3D data | Universal dividers only, no precision pockets |
| MOQ | From 50 pcs on existing molds, negotiable for tooling | Usually 500–1,000 pcs |
| Certification & delivery | Material/drop/immersion reports, factory audits welcome | Reports 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
Sizing & Selection Guide
To size a Long Ammo Box, measure the largest 3D dimensions of the payload and allow 30–50 mm per side for foam, then match against internal case dimensions. Above 30 kg payloads, add wheels and reinforced bases.
kexinMaterials stocks a full size run from personal cases to large transit trunks with published internal dimensions; if nothing fits, we evaluate mold revisions or new tooling — selection advice is free.
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.
Field Case Studies
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.
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.