Industrial Hinges for Cabinets, Cases & Heavy-Duty Applications
5 ProductsNRH hinges provide durable, reliable pivoting solutions for industrial boxes, flight cases, toolboxes, medical enclosures, and server racks. Our hinge range includes butt hinges (small to medium loads), piano hinges (continuous support), spring hinges (automatic return), heavy‑duty hinges (high load capacity), roto‑molded case hinges (corrosion resistant), detachable hinges (easy panel removal), and flight case support hinges (reinforced). Manufactured from SUS304 stainless steel (corrosion resistant), SPCC steel with chrome or zinc plating, and zinc alloy. Available surface finishes: mirror polish, brushed, vibratory polish, and powder coating. Choose the right hinge for your application: butt hinges for cabinets and small enclosures, piano hinges for full‑length lids, spring hinges for self‑closing doors, or heavy‑duty hinges for large transport cases. Load capacities range from 4kg to over 80kg. NRH supports OEM/ODM customization - size, material, finish, pin type, and special hole patterns. ISO 9001 certified. Free samples for qualified customers. Contact us for bulk pricing or custom designs.
Complete Hinges Collection
Frequently Asked Questions About Hinges
We have no minimum order for in-stock catalog items - order even 1 piece if you need it. Shipping is freight collect for sample and small quantity orders. For custom laser engraving, private labeling, or non-catalog specifications, MOQ varies by product model and manufacturing process. Contact our sales team with your specific requirements for a precise quote and lead time.
We manufacture in 5 primary materials, each specified for different operating environments:
- SUS304 stainless steel - excellent corrosion resistance with passivated finishes available for enhanced durability in harsh environments (consult our engineers for specifications). Our most popular choice for marine hardware, food processing equipment, and outdoor enclosures.
- SUS201 stainless steel - cost-effective option for indoor dry environments with good general corrosion resistance.
- Cold-rolled carbon steel (SPCC) - high tensile strength for heavy-load applications, available with zinc, nickel, or chrome plating for corrosion protection.
- Zinc alloy (ZAMAK) - precision die-cast for complex geometries, naturally corrosion-resistant, ideal for decorative and medium-duty applications.
- ABS plastic - lightweight, non-conductive, and chemical-resistant, perfect for electronic equipment cases and medical instrument enclosures.
- In-stock items: Ship within 48 hours of order confirmation.
- Standard catalog models (made-to-order): 7-15 business days.
- OEM / custom tooled products: 25-35 business days depending on part complexity and tooling requirements.
- Express / urgent orders: Rush production is available for an additional fee - contact your account manager for options.
Absolutely - OEM and ODM manufacturing is a core part of our business. We support:
- Custom sizes & shapes: Full tooling design based on your drawings, samples, or concept sketches.
- Surface finish options: Polished, brushed, powder coated, chrome plated, nickel plated, zinc plated, and custom colors.
- Logo marking: Laser engraving, silk screening, embossing, or custom mold inserts.
- Packaging customization: Branded boxes, foam inserts, custom labels, and export-grade packaging.
- Material modification: Custom alloys, food-grade 316 stainless steel, and RoHS-compliant materials.
Our factory is ISO 9001:2015 certified and operates under GJB (Chinese Military Standard) quality management systems for defense-grade products. Every batch undergoes rigorous testing before shipment:
- Surface finish testing - coating thickness measurement, adhesion cross-cut test, and roughness inspection ensure consistent finish quality across every batch.
- Load & tensile testing - verified working load and ultimate tensile strength for every latch, hinge, and handle model.
- Cycle durability testing - 10,000+ open/close cycles for moving components.
- Dimension inspection - 100% caliper and gauge inspection for critical dimensions.
- RoHS compliance - all materials meet EU RoHS 2.0 standards for restricted substances.
Each type serves a different purpose:
- Butt hinges - the most common type, mounted in pairs along the door edge. Economical and suitable for most standard cabinet and enclosure doors. Available in various load ratings.
- Piano hinges (also called continuous hinges) - run the full length of the door, distributing weight evenly across the entire edge. Best for long or heavy doors where you want to prevent sagging, or for applications requiring a tight, continuous gap.
- Torque hinges (also called friction or constant torque hinges) - have built-in friction that holds the door at any open angle. Ideal for equipment with lids or access panels that need to stay open hands-free, such as medical devices, industrial control panels, and display cases.
The number and size of hinges depend on door weight, height, hinge load rating, and application conditions. As a general guideline:
The best way to get an accurate recommendation is to send us your door dimensions, weight, material, and expected usage. Our engineering team will calculate the exact number and placement for your specific application.
- Start with a minimum of 2 hinges for any door
- Add 1 additional hinge for every 500mm of door height beyond 600mm
- Add extra hinges for heavy doors, high-frequency use, or applications with vibration or impact
- Always use hinges with a combined working load rating at least 2x the door weight as a safety factor
The best way to get an accurate recommendation is to send us your door dimensions, weight, material, and expected usage. Our engineering team will calculate the exact number and placement for your specific application.