Heavy Duty Dry Box for Instruments is an engineered protective case in the waterproof 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.
A waterproof case uses a silicone gasket and latches to achieve IP67 dust-tight and watertight protection, suited to marine, outdoor and rescue use where gear must stay dry after brief immersion.
Heavy Duty Dry Box for Instruments: Product & Manufacturer Overview
kexinMaterials is a factory-direct waterproof case manufacturer in Guangdong with self-developed tooling, covering sizes from 10-inch personal cases to 50-inch equipment trunks — colors, interiors and logos all customizable for wholesale and OEM programs.
Outdoor work demands waterproofing, crush resistance and buoyancy margin in one shell. kexinMaterials cases offer positive buoyancy references under rated loads, lockable latches and shoulder systems for on-water operations and island logistics.
Key Specifications
| Shell material | UV-stabilized modified PP / ABS |
|---|---|
| Protection rating | IP67 (1 m immersion, 30 min) |
| Temperature range | -30°C to +80°C |
| Sealing | Continuous silicone gasket + auto relief valve |
| Closure | Dual/triple latches, padlock-ready |
| Customization | Colors, interior (EVA/dividers/empty), logo, wheels |
| Durability | Seal re-tested at 500 cycles, compression set <25% |
| Cushioning | Foam sized to allowable G (calculation supplied) |
Product Feature Breakdown
Heavy-duty acceptance should test fatigue, not a single ultimate load: Heavy Duty Dry Box for Instruments warrants combined multi-cycle drop, vibration and thermal testing, tracking gasket compression set (keep under 25%) and latch engagement decay. kexinMaterials publishes seal re-test data after 500 open-close cycles.
When Heavy Duty Dry Box for Instruments carries precision instruments, the shock acceleration limit is normally specified by the instrument maker (commonly 25–50 G). Foam density and deflection travel must be derived from that threshold rather than from habit; kexinMaterials issues a cushioning calculation against a customer-supplied allowable G.
How kexinMaterials Compares
| Dimension | kexinMaterials | Generic market cases |
|---|---|---|
| Rating | IP67 standard, IP68/IPX6 optional | Splash-only, floods when immersed |
| Sealing | Silicone gasket + auto pressure-equalization valve | No valve, collapses at altitude |
| Weathering | UV-stable modified PP, salt-fog resistant | Generic resin yellows outdoors |
| Latches | Waterproof latches with rubber gasket | Plain clasps leak |
| MOQ | From 50 pcs, custom colors | High batch barrier |
| Proven use | Marine/diving/fishing field cases | Lacks scenario proof |
Large-format note: cases over 800 mm per side are best rotomolded — seamless walls, high tear resistance — and should add wheels, forklift channels and multi-person handles.
Standards & Industry Data
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).
Water-Jet Tests (IPX5/IPX6)
IPX5 uses a 6.3 mm nozzle at 12.5 L/min from 3 m for at least 3 minutes (~30 kPa); IPX6 steps up to a 12.5 mm nozzle at 100 L/min (~100 kPa), simulating sea waves and pressure washing. Marine and outdoor cases should meet at least IPX6.
IP68 vs IP67 (IEC 60529)
IP68 covers continuous immersion. IEC 60529 does not fix a universal depth or duration — the manufacturer declares conditions that must exceed IP67 (typically 2–10 m). Always request the test certificate to confirm the actual depth/duration rather than relying on the “IP68” label alone.
Typical Applications
- Overlanding and expedition gear storage
- Marine fishing and boat equipment
- Photography gear in the field
- Emergency-response equipment staging
- Water sports and dive gear transport
- Utility line-inspection tool carry
Product Overview
The kexinMaterials Heavy Duty Dry Box for Instruments 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 Heavy Duty Dry Box for Instruments 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 Heavy Duty Dry Box for Instruments 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 Heavy Duty Dry Box for Instruments 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
The whole range is high-pressure injection molded with gasket-channel tolerances held to the 0.1 mm class. Each batch is sample-tested with a 1-meter, 30-minute immersion to keep IP67 performance consistent.
Field Case Studies
2,000 marine equipment cases, IP68 + UV-stable, no aging or leakage after 18 months in salt spray.
900 dive-gear cases with pressure-equalization valves, no collapse during high-altitude transit.
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.