1. Specifications: 2000*800*2500mm
2. Structural Requirements
(1) Features a top-opening cabinet with 3-layer shelving platforms above and 5 drawers below. Style 1: Drawers are 220mm high and 700mm deep, arranged in 5 rows totaling 10 drawers—making up 12 sets in total. Style 2: Drawers are 200mm high and 400mm deep, with 5 rows containing 20 drawers altogether—resulting in 28 sets. The cabinets are designed for modular assembly, and each layer can securely support a load exceeding 100kg via dedicated artifact dividers.
(2) The artifact placement boards must support a load of ≥100 KG. The frame and upright posts must remain free from deformation, with no tilting observed in the frame. After a 48-hour load-bearing test, the maximum deflection of the shelves should not exceed 1 mm. Upon unloading, there should be no cracks or deformations whatsoever, and any residual deformation must be no more than 0.1 mm.
(3) The entire collection storage facility features air permeability and dust-proofing capabilities. Dust-proof devices should be installed at the top of the shelves, while rodent-proofing mechanisms should be placed at the bottom.
(4) Cultural relic security and storage facilities achieve interchangeability, scalability, independent operability at any time, free internal partitioning within each unit, and preservation effectiveness for cultural relics.
(5) All components must be securely and reliably installed, with uniform gaps and no signs of looseness. Each shelf within the same row and on the same level must lie perfectly horizontal. Additionally, sections within the same row can be connected as needed, ensuring seamless support for exceptionally long items laid flat.
(6) The guard plates are formed by cold-rolled steel sheet pressing and folding, with rounded edges designed to meet ergonomic standards and prevent accidental injuries to workers caused by sharp corners or straight edges.
(7) A standard steel catalog label frame is installed on the side guard panel, enabling the retrieval and query of storage information for artifacts in that particular column.
(8) The main structure is assembled from drawers, slides, support beams, positioning pins, storage platforms, wrapping panels, door panels, top plates, and stainless steel connecting components. It features modular production and easy disassembly for reconfiguration. After on-site assembly, it forms an inner-layer shelving platform, with vertical height adjustable according to the size of the cultural relics. The standard configuration includes single-sided, double-opening doors—top and bottom. Additionally, each column of wrapping panels is fitted with acrylic identification signs positioned in the middle section on the outer side.
(9) Each storage platform and positioning pin can be independently adjusted in height along the vertical direction of the supporting beam, while also being securely fixed to the frame to provide shock-absorbing functionality. The cabinet is equipped with an anti-tip board for cultural relics, which prevents artifacts from sliding out of the cabinet when the door is opened.
(10) The upper part of the frame features a 2-tier shelving system, while the lower tier consists of a 5-drawer structure. Each drawer inside the frame is crafted from cold-rolled steel sheet with a thickness of at least 1.0 mm. Additionally, reinforcing keels are installed on both sides of the artifact drawers to ensure even weight distribution and withstand a uniform compressive load exceeding 100 kg without sustaining any damage or noticeable deformation.
(11) The drawer panels feature an "S"-shaped structure, with the end faces requiring sealed treatment. All four sides of the drawer are double-folded, and reinforcing plates are added at appropriate locations. Additionally, the bottom of each drawer is lined with a 10mm-thick camphorwood board, fully covered with linen fabric to ensure superior load-bearing performance. Each drawer can safely support a weight of ≥100 kg/m².
(12) The drawers feature heavy-duty three-section ball-bearing slides, which are connected to the drawers via sliding feet and to the cabinet uprights using a snap-fit mechanism for easy assembly and disassembly. The slides themselves are equipped with anti-derailment and anti-tip devices, ensuring that the drawers remain securely in place when pulled out—and even include a locking function to prevent accidental movement. (13) The "S"-shaped drawer fronts must be fitted with one or more catalog retrieval labels. The installation method must not compromise the structural integrity of the drawer panel, while also enhancing usability for quick reference and adding an elegant, visually appealing touch.
(14) Each row has side panels at both ends, manufactured using a one-piece molding process, with rounded edges on both sides. To facilitate easy classification and management, each row of cabinet panels should be equipped with a label holder at the appropriate location. The label holders feature a bold, eye-catching design that ensures quick identification and allows for convenient, hassle-free replacement.
(15) The cabinet doors are hinged for maximum opening angles, making it easy to access and retrieve cultural relics. There are no exposed support beams between the doors.
(16) Supporting beam: Made from cold-rolled steel plate with a thickness of ≥2.0mm, fabricated in one continuous roll-forming process using no fewer than eight bending operations.
(17) The upright posts are made of cold-rolled steel plates with a thickness of ≥1.5mm, featuring at least two reinforcing ribs pressed onto both the front and side surfaces. Additionally, each side of the upright post is stamped with hanging holes that widen at the top and narrow at the bottom—this design ensures that the posts grip more tightly under load, making them highly resistant to loosening. The upright posts boast an attractive appearance and a robust, durable structure.
(18) Layer Board (Support Board): Made from cold-rolled steel plates ≥1.0mm thick, formed by four-fold bending to achieve a final thickness of ≥25mm. It undergoes electrostatic powder coating, with an additional layer of camphor wood board ≥10mm thick placed at the bottom, topped with linen fabric for enhanced durability and comfort.
(19) Positioning Strut: Made from cold-rolled steel plate with a thickness of ≥1.0 mm, this component is formed using a single-step molding machine. Both ends of the mounting plate are stamped with at least three prominent cross-shaped hooks. The central section features a waist-shaped, stretched flange formed via die pressing, incorporating at least two stepped reinforcing holes. Each hole is equipped with no fewer than four round reinforcing ribs positioned above and below. Additionally, the top and bottom edges of the mounting plate are bent at right angles, and at least four bracket hooks are punched along these edges, allowing the brackets to securely clip onto the mounting plate on both sides. Once the mounting plate is connected to the upright post, the tighter the plate is subjected to force, the more firmly it locks into place—ensuring zero play or looseness at the joint between the plate and post, resulting in an even closer, more secure fit and enabling finer adjustments in spacing.
(20) Pallet board: Made from cold-rolled steel sheet ≥1.0MM thick, with the mid-section panel color selected by the customer.
(21) Door panels: Made from cold-rolled steel sheets with a thickness of ≥1.0mm.
(22) Roof and side panels: Made from cold-rolled steel sheets with a thickness of ≥0.8mm.
(23) Dust-proof panel: Made from cold-rolled steel sheet with a thickness of ≥0.8mm.
(24) Drawer: Made from cold-rolled steel sheet with a thickness of ≥0.8mm.
(25) Requirements involving weight, dimensions, volume, and other such parameters shall be specified as fixed values, with an allowable tolerance of ±2% for each.
3. Door Lock Requirements
Invisible Lock: A square push-type, three-level management invisible lock with door-lock keys. It features at least three levels of management functionality—each standard-coded key corresponds uniquely to the lock body, while a second key (the administrator key) allows control over one or more groups, as well as individual or multiple storage rooms. Additionally, there’s a third key (the maintenance/management key), specifically designed for replacing the lock cylinder. In cases such as a damaged lock mechanism or lost/stolen keys, this maintenance key enables direct replacement of the lock cylinder.
4. Process:
(1) The cabinet doors open smoothly and quietly. After assembly, the door gaps are uniform, ensuring a tight and secure lock.
(2) All metal sheet components of the product undergo a rigorous 13-step process, including pickling, rust removal, and phosphating. The surface is coated with high-strength resin powder material that boasts eco-friendly properties. The coating application ensures complete coverage with no dead angles.
(3) The cabinet doors are fitted with hydraulic buffer hinges, ensuring smooth and effortless opening and closing without any noise. Additionally, the doors remain securely closed even when not locked, preventing them from accidentally swinging open on their own.
(4) To ensure the storage platform's load-bearing strength, a reinforcing rib is welded directly in the center of the platform's bottom surface.
(5) The welded components are securely joined, with smooth and even weld marks. All parts and assemblies should have surfaces that are smooth, flat, free of sharp edges or protrusions, and free from cracks or scratches.
(6) The color scheme of the structure harmonizes with the museum's overall style, emphasizing simplicity, solidity, and elegant sophistication.
(7) Add ventilation holes on the side or back.