Square thickened snap-latch protective case made of PP material, shockproof and waterproof, with customizable interior foam that can be cut freely! Customization service is available!
This Model 433333# Extra-Tall Large-Capacity Handheld Hard Protective Case is engineered specifically for truck onboard tools and large precision equipment, featuring waterproof, drop-resistant properties and ample storage space. Its external dimensions measure 466×390×350mm (18.36”*15.36”*13.8”), internal dimensions 433×330×330mm (17.04”*12.96”*12.96”), and outer carton packing dimensions 475×395×360mm (18.70”*15.55”*14.17”), with the case net weight at 5.3KG.
The case body is integrally injection-molded from thickened high-toughness modified PP alloy, adopting an extra-tall vertical large-capacity design. It comes with an anti-slip reinforced front carrying handle, a red classification label plaque slot at the center, heavy-duty thickened self-locking spring latches on both sides, and an independent integrated pressure balance relief valve on the front. Fitted with a full-circumference annular sealing gasket, it delivers multi-layer protection including IP67-rated waterproofing and dustproofing, drop resistance, compression resistance, shock resistance and moisture proofing.
The case lid is pre-equipped with high-density wavy shock-absorbing foam, while the case bottom features a flat EVA cushion. Custom CNC integrally molded EVA inserts are available on demand. The spacious compartment can hold complete sets of truck maintenance hardware, large testing instruments, industrial flaw detection equipment, large photographic lenses and full sets of outdoor surveying and mapping gear.
Boasting an extra-tall portable handheld design, it suits storage inside truck cabs, on-site maintenance at construction sites, field engineering operations and long-distance logistics shipping. It effectively addresses common pain points such as rusting of truck tools exposed to rain, crushing deformation of heavy precision equipment during transit, and compromised accuracy of industrial instruments. It serves as a dedicated large-capacity protective carrier for freight trucking, engineering inspection and outdoor surveying and mapping industries.
IP67 fully sealed waterproof and dustproof design shields against outdoor rain, snow and dust: An integrated high-elastic sealing rubber ring at the box opening fits tightly against the box body without gaps when closed. It blocks moisture and dust for trucks parked outdoors, construction sites operating in rainy weather, and dusty mining areas, preventing heavy wrenches from rusting, large testing instruments from short-circuiting due to dampness, and optical lenses from getting scratched by dust ingress.
Integrally formed thickened, three-dimensional widened anti-collision ribs deliver heavy-load impact resistance and deformation resistance: Thickened raised anti-collision ribs run around the box perimeter and top cover with no splicing seams. The box will not crack or dent when dropped freely from 1.5 meters or stacked under multi-layer heavy loads, fully protecting internal heavy-duty tools and precision equipment during constant jolts from truck travel and sorting of large express shipments.
Independent front-mounted air pressure equalization relief valve enables effortless box opening at high and low altitudes: The waterproof pressure relief valve automatically balances internal and external air pressure. No negative pressure will form to suction the lid shut during long-distance freight transportation or high-altitude engineering work, eliminating the need for prying with force and allowing smooth, unobstructed opening for cross-regional long-haul transit.
Extra-tall high-capacity box paired with reinforced carry handle supports single-person transport of heavy tools: The empty box weighs 5.3 KG. The thickened anti-slip handle is reinforced with multi-point riveting and can hold a full set of heavy-duty truck maintenance tools. The elevated inner compartment provides ample storage space for large long tools and bulky instruments, and the box can be stably placed in truck cab storage compartments and engineering workbenches.
Dual heavy-duty self-locking spring latches with anti-theft lock holes enhance safety for vehicle storage: Symmetric widened and thickened heavy-duty spring latches on both sides fasten tightly and will not pop open accidentally during high-speed truck vibrations or long-distance manual carrying. Standard padlock holes are reserved on the latches; locks can be applied for long-term vehicle parking and large logistics shipments to prevent loss of valuable large testing equipment.
Front red nameplate slot facilitates sorting for multi-box vehicle storage and warehousing: A red transparent label slot on the front of the box holds classification tags to distinguish maintenance tools and testing instruments, enabling quick identification when multiple large-capacity toolboxes are stacked, and streamlining batch management for truck fleets and engineering warehouses.
Customizable one-piece grooved inner lining secures large equipment against sliding: Standard configuration includes wave-shaped shock-absorbing sponge on the lid and flat EVA base padding inside the box, suitable for loose storage of complete hardware sets, cables and large probes. A CNC milled one-piece EVA inner liner is also available, with cutouts precisely shaped to fit truck tools and large instruments, keeping large items fixed without shifting, friction or collision during bumpy transit.
Thickened wide-temperature weather-resistant raw materials ensure long-lasting durability under extreme vehicle-mounted environments: UV-resistant and cold-resistant thickened modified additives are blended into the raw material. The box maintains stable performance between -30℃ and +80℃, resisting cracking, whitening and deformation during long-term use on trucks exposed to open-air northern winters and sun-baked southern summer cargo compartments.
| Parameter Items | Detailed Values |
|---|---|
| External Overall Dimensions | 466×390×350mm(18.36”*15.36”*13.8”) |
| Internal Usable Dimensions | 433×330×330mm(17.04”*12.96”*12.96”) |
| Outer Packaging Carton Dimensions | 475×395×360mm(18.70”*15.55”*14.17”) |
| Net weight of the box | 5.3KG |
| Main Material | Thickened High-Toughness Modified PP Engineering Plastic |
| Protection Class | IP67 waterproof and dustproof |
| Standard Configuration | Dual-side heavy-duty spring latches, waterproof pressure relief valve, front anti-slip reinforced handle, annular sealing rubber ring, extended continuous hinge, front red nameplate slot for identification marks |
| Optional Inner Liners | Empty case, one-piece CNC molded positioning EVA, wave-shaped cushioning foam for case lid, flat EVA bottom liner |
Front Red Classification Nameplate Slot
An open red transparent label slot on the front of the cabinet allows free replacement of paper classification labels. When multiple large-capacity truck toolboxes are stacked neatly, the complete sets of maintenance tools inside can be quickly distinguished, facilitating clear classified management for fleet warehouses and engineering operation and maintenance.

Bilaterally Symmetrical Heavy-Duty Thickened Self-Locking Spring Latches
These heavy-duty latches are made of widened and thickened virgin engineering plastic with evenly distributed symmetrical force. They will not come loose during truck bumpy rides or heavy-load handling at construction sites. Standard lock holes are pre-reserved on the latches for installing anti-theft padlocks, delivering enhanced safety when storing valuable equipment during vehicle parking.

Integrated High-Density Wavy Shock-Absorbing Foam for Case Lid
Thickened high-density wavy foam is attached to the case lid. When the case is closed, it fully fits large spanners, bulky instruments and telephoto lenses stored inside. It cushions impact vibrations generated during long-distance vehicle transportation, preventing heavy items from scratching each other via friction and stopping severe denting and deformation of component edges from collisions.

Integrated Non-Slip Reinforced Heavy-Duty Front Handle
The handle is embedded on the front of the case with anti-slip concave-convex textures on its surface and reinforced by double-layer rivets at multiple positions. It will not break easily even when fully loaded with a complete set of heavy-duty truck maintenance tools. Adopting an ergonomic curved grip design, it prevents soreness and fatigue in hands during long-distance field transport carrying.

Matte military black is available as standard stock, which is stain-resistant and scratch-proof. It repels truck engine oil and construction site mud stains. Custom colors such as military green, industrial orange and light gray are offered for bulk orders.
Custom Logo Marking: Laser engraving and silk-screen printing are available on the blank front panel of the case for freight fleet brands, auto repair shop names and corporate equipment serial numbers.
Precision Integrated Grooved Liner: Integrated EVA foam slots are CNC-milled as a single block based on drawings of complete truck tool kits, large flaw detection instruments and telephoto lenses to fully secure large-sized equipment in place.
Bulk OEM & ODM Customization: For large-quantity orders, adjustments can be made to case colors, latch fittings and overall liner solutions to meet high-capacity storage demands across multiple industries including truck vehicle mounting, industrial inspection and surveying & mapping.
Bulk Group Purchasing Cooperation: Tiered volume pricing is provided for bulk purchasers including freight fleets, auto repair chain stores, engineering inspection institutions and surveying teams, with official VAT invoices available.
Vehicle-mounted storage for complete maintenance tool sets of freight trucks: full storage of heavy-duty sockets, torque wrenches and truck fault detectors; waterproof and moisture-proof to isolate moisture in carriage and avoid long-term rust of metal hardware;
Transportation of large industrial flaw detection instruments: vehicle-mounted storage for portable flaw detectors, large linear sensors and heavy-duty temperature measuring equipment; shockproof protection to stabilize instrument detection accuracy;
Protective storage for large telephoto lenses for outdoor shooting: all-in-one storage for prime telephoto lenses, lens barrels and large camera bodies; rainproof and drop-proof for long-distance vehicle trips to resist wind sand and rainwater;
Carrying complete surveying and mapping equipment for field engineering: outdoor operation storage for large rangefinders and full sets of geological sampling tools; full protection on bumpy mountain roads and in heavy rain environments;
Organized storage of complete heavy-duty electronic repair accessories: neat storage for large circuit boards, heavy-duty welding equipment and full sets of precision screwdrivers; dustproof and moisture-proof to protect large electronic components;
Short-distance inspection transportation of medium-sized complete laboratory experimental components: transfer storage for full optical component sets and medium-sized sensing equipment; reduce component loss caused by dust and moisture;
Long-distance full-truck logistics delivery of heavy precision equipment: thickened hard protective boxes resist extrusion during sorting and heavy loading, greatly lowering the damage rate of large equipment during transportation;
Organized storage of on-board tools in truck cabs: stably placed under the cab and beside the bunk without sliding collision noises when the vehicle runs at high speed, making full use of vehicle storage space.
Main Box Material: Thickened high-toughness modified PP engineering plastic with double-layer thickened wall thickness, blended with impact-resistant, cold-resistant and anti-UV modified additives. It resists cracking under heavy-load working conditions, withstands truck engine oil and mild acid-base corrosion, and suits complex open-air vehicle-mounted operating environments.
Sealing Gasket: Made of highly elastic natural rubber with an extra thickened and widened design. It maintains lasting resilience without hardening, and will not crack or fail after tens of thousands of opening and closing cycles, steadily sustaining the box’s IP67 waterproof and rust-proof sealing performance.
Metal Connecting Fittings: All metal hardware including hinges and lock holes undergoes double-layer electroplating anti-rust treatment, preventing rust and jamming in humid truck cargo holds and high-humidity coastal freight environments.
Forming Process: High-pressure double-layer integrated injection molding with no splicing seams. The box features strong structural integrity, eliminating risks of water seepage, cracking and engine oil leakage through joint gaps.
Assembly Process: Latches, pressure relief valves and hinges are all assembled via double-layer mechanically reinforced riveting, avoiding loosening or shifting after frequent heavy-duty opening and closing over long-term use; the gasket is embedded into precision grooves to prevent detachment.
Lining Process: A single piece of EVA foam is integrally cut by CNC machine, with shaped slots that fully fit the contours of large tools and equipment. Thickened wavy shock-absorbing foam is integrally bonded to the box lid for stable and long-lasting cushioning under heavy loads.
Independent Protective Packaging: Each case is individually packed in a carton and sealed with an extra-thick corrugated outer carton to prevent edge impacts and surface scratches during courier delivery.
Delivery Lead Time: In-stock empty cases will be dispatched within 48 hours. Orders with LOGO engraving, custom molded EVA, foam and pearl cotton liners will be scheduled for production and delivered within 15 working days.
Logistics Solutions: Small retail orders are delivered to door via courier. Bulk group procurement orders can be shipped by dedicated line logistics, with full-truck door-to-door delivery available.
Packing List: Main protective case; optional liners shipped together in the same package.
Q1: What is the maximum full load weight capacity of this heightened case? Will filling it with heavy truck wrenches crush the case?
A: The static full load bearing capacity of the case reaches 30KG. The total weight of a standard complete set of truck maintenance tools falls within the load limit, and the case will not deform when normally stored in vehicles. Do not place heavy castings over 30KG inside for long-term static storage.
Q2: Can shoulder straps be installed through the buckle holes on both sides of the case? Is it suitable to carry on the back for outdoor work?
A: Standard hanging holes are reserved at both ends of the case for use with extended load-bearing shoulder straps for back carrying. However, the case itself is relatively heavy. Carrying it by hand in vehicles for short-distance transport is more recommended, and long-distance hiking with it on the back is not advised.
Q3: Will the material of the case soften and deform when kept inside a truck carriage exposed to intense sunlight and high temperatures outdoors?
A: High-temperature and UV-resistant additives are blended into the raw materials, so the case will not soften or deform in carriage environments up to 80°C. In summer when parking, place the case in cool areas of the cab as much as possible to avoid prolonged direct midday sunlight.
Q4: What is the minimum order quantity for custom one-piece EVA liners? Can integrated grooving for multiple tools be processed on a single liner?
A: The MOQ for custom liners is 300 pieces. Integrated partition grooving for multiple truck wrenches and testing instruments on one foam block is supported. Physical samples or dimension drawings can be provided for mold opening.
Q5: What are the dimensions of the red label slot on the front of the case? Can custom corporate labels be printed?
A: The label slot adopts a universal standard size. You may print and cut your own paper or PVC labels for insertion. You can also contact the factory to have custom printed labels pre-installed during production.
Q6: Will the sealing rubber ring age rapidly if the case is left outdoors in parking lots exposed to rain and snow for a long time?
A: The rubber ring is made of weather-resistant and mildew-proof rubber, which will not deteriorate quickly under short-term outdoor rain exposure. It is recommended to open the lid for ventilation once a week and wipe off water stains and oil dirt on the rubber ring surface monthly to extend its sealing service life.
Q7: When stacking multiple identical large-capacity cases in a truck cargo hold, will the bottom cases get crushed and deformed?
A: Widened anti-collision ribs on the top surface evenly distribute pressure, and the bottom cases will not deform when statically stacked within 2 layers. Do not stack more than 3 layers in the cargo hold, as continuous road bumps may deform the frame and damage the waterproof seal.