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PP pull rod protective case with wheels, waterproof and dustproof, customizable internal partitions available!
This Model 523923# Medium Wheeled Protective Case with Military-Style Design is equipped with an integrated hidden retractable pull rod and dual bottom casters, engineered for long-distance transportation of heavy-duty equipment. Its thickened military-grade shell is ideal for storing precision testing instruments, film and television lighting kits, complete sets of heavy maintenance tools, and full aerial survey drones.
External dimensions: 570×447×273mm (22.44”*17.64”*10.68”); Internal dimensions: 516×391×228mm (20.4”*15.36”*9.0”); Outer packing carton dimensions: 586×465×298mm (23.07”*18.31”*11.73”); Net weight of the case: 5.22KG.
The case is integrally injection-molded from thickened, high-toughness modified military-grade PP alloy, featuring a shell with three-dimensional vertical reinforcing ribs. It comes with a hidden high-strength retractable pull rod, anti-slip auxiliary side handles, multiple sets of heavy-duty self-locking latches on both sides, an independent front pressure balance relief valve, and an all-around widened mildew-proof sealing gasket. It meets the standards of IP67 water and dust resistance, 1.8-meter drop resistance, and shock absorption for heavy loads.
The interior is standard-fitted with high-density wave-shaped shock-absorbing foam and a solid EVA base mat, and custom CNC one-piece milled EVA liners are available. The spacious and heightened inner compartment can hold complete heavy-duty equipment sets.
Boasting a dual carrying system combining pull rod and casters, this case is suitable for long-distance industrial field work, intercity outdoor film shooting, exhibition equipment consignment, and air freight of large logistics goods. It addresses common industry pain points including laborious single-person handling of heavy equipment, extrusion deformation during long-distance transit, and malfunction of precision instruments caused by moisture. It serves as a professional mobile protective storage solution for testing institutes, film and television studios, engineering fleets, and aerial survey teams.
Military-grade IP67 full perimeter sealing for all-weather waterproof, dustproof and moistureproof performance: An integrated wide, highly elastic mildew-resistant rubber sealing ring is fitted at the case opening, which exerts even compression all around once the lid is closed. It blocks moisture and dust in heavy rain outdoor shooting sites, dusty mining areas, high-humidity coastal zones and damp basements, preventing rust on metal tools, short circuits of electronic detection instruments and dust ingress or scratches on optical lenses.
Shell with three-dimensional vertical thickened reinforcing ribs for heavy load resistance and drop impact resistance without cracking: Thickened vertical anti-collision ribs are integrally formed on all six sides of the case with no weak spliced seams. The case will not dent or crack under free falls from 1.8 meters or multi-layer heavy load stacking, fully protecting valuable internal equipment from hard object impacts at construction sites and rough sorting during logistics transportation of large cargo.
Concealed multi-stage retractable metal pull rod + bottom silent load-bearing casters: A built-in concealed thickened metal retractable pull rod with adjustable multi-level heights accommodates users of different heights for easy towing. Integrated reinforced silent casters at the bottom feature wear-resistant load-bearing bearings, enabling effortless flat-ground towing when fully loaded with heavy instruments and drastically reducing the physical strain of long-distance single-person handling.
Dual auxiliary anti-slip side handles for flexible transport in confined spaces: Embedded thickened anti-slip handles are installed on both left and right sides of the case, reinforced via double-layer multi-point riveting. They allow short-distance hand-carry transport inside vehicles where the pull rod cannot be extended or in narrow stairwells, with curved anti-slip grips that prevent hand abrasion during prolonged carrying.
Multiple symmetrical heavy-duty spring latches with anti-theft padlock holes for secure closure: Multiple widened and thickened self-locking latches on both sides compress the case synchronously to maintain sealing integrity, avoiding accidental loosening or popping open amid vibrations during high-speed driving or long-distance consignment. Standard padlock holes are reserved on each latch for anti-theft locking during exhibition storage and air freight.
Front-mounted pressure equalization relief valve for smooth lid opening without negative pressure resistance during air transport and high-altitude use: The waterproof relief valve automatically balances air pressure inside and outside the case, eliminating negative pressure suction on the lid during cross-border air shipment and field surveys on plateaus. No forceful prying of the case is required, enabling effortless lid opening for cross-regional long-distance transit.
Spacious heightened inner compartment + customizable one-piece liner for stable partitioned storage of complete equipment sets: The elevated, roomy inner storage compartment accommodates full-size large integrated equipment. A wave-shaped sponge kit comes as standard, while custom one-piece grooved EVA liners are available with individual cutouts shaped to fit instruments and tools, eliminating sliding, friction, impact and scratches even when towing over bumpy surfaces.
Military-grade weather-resistant thickened raw material for long-term stability under extreme high and low temperatures: The material is blended with high-content anti-UV and cold-resistant modified additives. The case resists brittle cracking, softening, whitening and aging within the temperature range of -35℃ to +85℃, suitable for open-air use in frigid northern winters, storage inside sweltering vehicle compartments in southern summers and field environments with drastic day-night temperature fluctuations.
| Parameter Items | Detailed Values |
|---|---|
| External Overall Dimensions | 570×447×273mm（22.44”*17.64”*10.68”） |
| Internal Usable Dimensions | 516×391×228mm（20.4”*15.36”*9.0”） |
| Outer Packing Box Dimensions | 586×465×298mm（23.07”*18.31”*11.73”） |
| Net Weight of the Case | 5.22KG |
| Main Material | Military-grade Thickened High-Toughness Modified PP Engineering Plastic |
| Protection Class | IP67 dustproof and waterproof |
| Standard Configuration | Multiple sets of heavy-duty spring latches, waterproof pressure relief valves, bilateral anti-slip auxiliary carrying handles, hidden retractable metal pull rods, silent load-bearing bottom casters, full-circle widened sealing rubber gaskets, extended continuous hinges, front red nameplate label slots |
| Optional Liner | Empty case, one-piece CNC integrated molded positioning EVA, wave-shaped shock-absorbing sponge for case lid, solid EVA cushion at the bottom |
Retractable Concealed Metal Pull Handle
The multi-adjustable metal pull handle concealed on the back can be fully retracted to fit closely against the case when not in use without occupying extra space. Equipped with two widened, wear-resistant silent rollers at the bottom, it glides smoothly and noisily even under heavy loads, with reinforced bearings for enhanced durability.
Symmetrical Multiple Sets of Heavy-Duty Self-Locking Spring Latches on Both Sides
The widened and thickened military-grade latches achieve synchronous tightening of multiple latches on the left and right sides, delivering even force distribution and stable sealing. Lock holes are pre-reserved on the latches for padlocks to be fitted when transporting equipment to exhibitions or via long-distance logistics shipments, preventing equipment loss.
High-Density Thickened Wavy Shock-Absorbing Sponge for Case Lid
The thickened high-density wavy sponge fits closely against the case lid and fully encloses internal equipment once the case is closed. It effectively cushions impact forces during long-distance wheeled transport and bumpy vehicle rides, preventing scratches and collisions on instrument casings and lens surfaces.
Double-sided Embedded Anti-slip Reinforced Auxiliary Handles
Thickened handles are symmetrically embedded on both left and right sides of the case with anti-slip concave-convex textures on the surface. Double-layer riveting delivers superior load-bearing capacity. When the pull rod is inconvenient to use, the case can be carried by hand for transport, enabling more flexible operation in narrow spaces.
Matte military black is available as standard stock, which resists oil stains and scratches from mud, and dirt on its surface can be easily wiped off in industrial environments. For bulk orders, cabinet colors such as military green and industrial orange can be customized, and custom logos can be printed on the designated logo area.
Custom Logo Engraving: The blank nameplate area on the front of the cabinet supports laser engraving and silk-screen printing of corporate logos, engineering team names and equipment serial numbers.
Custom Grooving for Integrated Liner: Based on the drawings of complete instruments, lighting kits and heavy-duty maintenance tools, integrated EVA liners are milled by CNC machines with separate slots for individual pieces of equipment.
Full OEM & ODM Customization Solutions: For large-volume orders, adjustments can be made to cabinet wall thickness, number of latches, pull rod length and liner structure to meet specialized storage demands across multiple industries including inspection, film and television, auto repair and aerial surveying.
Bulk Procurement Cooperation: Tiered discounts are offered for bulk purchases by inspection institutes, film and television studios, engineering fleets and aerial survey exploration teams, and official VAT invoices can be issued.
Long-distance emergency transport of complete heavy-duty auto repair tools: Integrated storage for heavy torque wrenches and full sets of vehicle fault diagnostic instruments. Equipped with pull rods and rollers to facilitate on-site emergency repairs, and waterproof and moistureproof performance prevents rusting of metal tools.
Field operations for industrial flaw detection and multi-channel precision testing instruments: Complete storage for portable flaw detection main units and linear sensors. Shockproof design stabilizes detection accuracy, offering rainproof and dustproof protection for mining areas and construction sites.
Storage for full sets of lighting and photographic equipment for outdoor film and television shooting: Integrated storage for fill lights, high-capacity batteries and telephoto lenses. Easy to push during cross-city outdoor shoots and resistant to wind, sand and heavy rain outdoors.
Transport of complete aerial survey drone units and all accessories: Integrated storage for survey drone bodies, multiple battery packs and ground stations, providing fallproof and waterproof performance for field surveys and exhibition consignments.
Carrying complete surveying and mapping instruments for field engineering: Complete equipment including total stations and geological sampling kits. Easy to push on mountain paths and flat ground, with all-round protection against heavy rain and dusty mining areas.
Logistics consignment of precision equipment for industry exhibitions: Complete packaging for demonstration testing instruments and display gear. Resists extrusion during large-item logistics, and locks secure the safety of exhibits.
Cross-city inspection delivery of medium-sized complete optical equipment for laboratories: Transport of optical main units and multiple sets of sensing devices. Moistureproof and dustproof features reduce component wear and tear.
On-board storage of complete maintenance equipment for freight fleets: Vehicle-mounted storage for full sets of heavy-duty truck repair tools. Easy to push when loading and unloading trucks during long-distance trips, cutting manpower required for single-person handling.
Main Box Material: Double-layer military-grade thickened modified PP alloy with high impact resistance, cold resistance and UV resistance. The greatly increased wall thickness delivers superior heavy-load bearing capacity, resistance to engine oil and mild acid-base corrosion, and prevents cracking under complex vehicle-mounted and field working conditions.
Sealing Gasket: Full-circumference widened and thickened natural mildew-proof rubber featuring lasting resilience without hardening. It remains crack-free after tens of thousands of opening and closing cycles and consistently maintains IP67 waterproof and dustproof sealing performance.
Metal Fittings: Pull rods, hinges and lock hardware adopt double electroplating for rust protection, resisting rust and jamming in humid construction sites and high-humidity coastal environments. The rollers are equipped with wear-resistant, silent thickened bearings.
Molding Process: High-pressure double-layer integrated injection molding eliminates splicing seams, granting the box exceptional structural integrity and eliminating risks of water seepage, oil leakage and stress cracking.
Assembly Process: Latches, pull rods and double-side carrying handles are all reinforced via mechanical double riveting, avoiding loosening or falling off during long-term heavy-load pushing, pulling and opening/closing. The gasket is installed in an embedded clamping groove to prevent shifting and detachment.
Liner Processing: A single piece of high-density EVA is digitally controlled and integrally cut to precisely fit the contours of large complete equipment. Thickened wave-shaped foam is integrally bonded to the box lid to provide durable and stable shock absorption and buffering 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 types of heavy objects are suitable to be stored in this case, and what precautions should be taken when pushing it on a daily basis?
A: It is suitable for complete sets of equipment such as full sets of auto repair tools, flaw detection instruments, film and television lighting equipment, and aerial survey drones. Try to push the case on flat roads and avoid frequently dragging it up and down steps, which can effectively extend the service life of the wheels and pull rod.
Q2: The pull rod supports multi-level height adjustment. Can the pull rod be replaced separately if it gets damaged?
A: The pull rod is a standardized universal accessory, so there is no need to replace the entire case. You can contact customer service and provide the case model to purchase a separate pull rod accessory for replacement.
Q3: What extra accessories need to be equipped for the locks if checking this case by air flight?
A: The original latches only fit ordinary mechanical padlocks. Customs-specific locks are recommended for air consignment at airports. The case structure meets the protection standards for large air consignments, and the protection and fixing effect for instruments will be better when matched with customized liners.
Q4: The height of the inner compartment is fixed. How can I tell if my vertical equipment can fit inside the case?
A: You can measure the overall height of your equipment and compare it with the internal net height of 228 mm of the case. If the equipment dimensions exceed the inner compartment, you may consult customer service for recommendations on larger-sized rolling protective cases.
Q5: Will the plastic parts of latches and pull rods get damaged easily when working outdoors in sub-zero temperatures for a long time?
A: Cold-resistant modified materials are added to the raw materials of the case and latches, so they maintain stable toughness in low-temperature environments. Do not forcefully snap the latches or yank the pull rod violently when using it in low temperatures; gentle opening and closing can reduce accessory wear.
Q6: What is the minimum order quantity for custom integrated molded EVA liners? Is independent grooving supported for a single piece of equipment?
A: The minimum order quantity for customized liners is 300 pieces. Independent integral grooving is available for a single complete equipment unit. The factory can develop molds and carry out production as long as you provide dimension drawings of the actual equipment.
Q7: Mud and sand accumulate in wheel gaps after use at field construction sites. How to clean and maintain the wheel bearings?
A: After finishing work, clear mud and sand from wheel gaps with a soft brush, rinse the wheel parts with a small amount of clean water, and fully air-dry the case before storage. Do not aim high-pressure water guns directly at the sealing rubber rings of the case, so as to avoid damaging the waterproof sealing structure.
